From 3ba4be8707372e73707d88a23b55cf352fe6fd3d Mon Sep 17 00:00:00 2001 From: Muhammad Furqon Fajri Date: Mon, 6 Apr 2026 12:47:57 +0700 Subject: [PATCH 01/10] chore: Initial Spring Boot project setup with dependencies --- pom.xml | 125 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 125 insertions(+) create mode 100644 pom.xml diff --git a/pom.xml b/pom.xml new file mode 100644 index 00000000..b360d830 --- /dev/null +++ b/pom.xml @@ -0,0 +1,125 @@ + + + 4.0.0 + + org.springframework.boot + spring-boot-starter-parent + 3.5.13 + + + com.allobank + idr-rate-aggregator + 0.0.1-SNAPSHOT + + + + + + + + + + + + + + + + + 21 + + + + + org.springframework.boot + spring-boot-starter-validation + + + + org.springframework.boot + spring-boot-starter-web + + + + org.springframework.boot + spring-boot-starter-webflux + + + + org.projectlombok + lombok + true + provided + + + + org.springframework.boot + spring-boot-starter-test + test + + + + io.projectreactor + reactor-test + test + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + org.projectlombok + lombok + 1.18.42 + + + + + + org.apache.maven.plugins + maven-compiler-plugin + + + default-compile + compile + + compile + + + + + org.projectlombok + lombok + 1.18.42 + + + + + + default-testCompile + test-compile + + testCompile + + + + + org.projectlombok + lombok + 1.18.42 + + + + + + + + + + From 8d7b3141dc245e15ad90a33c162c7fbf524352aa Mon Sep 17 00:00:00 2001 From: Muhammad Furqon Fajri Date: Mon, 6 Apr 2026 12:49:04 +0700 Subject: [PATCH 02/10] chore: Add application configuration and properties binding --- .../config/FrankfurterProperties.java | 29 +++++++++++++++++++ .../config/SpreadProperties.java | 14 +++++++++ src/main/resources/application.yml | 22 ++++++++++++++ 3 files changed, 65 insertions(+) create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/config/FrankfurterProperties.java create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/config/SpreadProperties.java create mode 100644 src/main/resources/application.yml diff --git a/src/main/java/com/allobank/idr_rate_aggregator/config/FrankfurterProperties.java b/src/main/java/com/allobank/idr_rate_aggregator/config/FrankfurterProperties.java new file mode 100644 index 00000000..272792f3 --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/config/FrankfurterProperties.java @@ -0,0 +1,29 @@ +package com.allobank.idr_rate_aggregator.config; + +import lombok.Data; +import org.springframework.boot.context.properties.ConfigurationProperties; +import org.springframework.stereotype.Component; + +@Data +@Component +@ConfigurationProperties(prefix = "frankfurter") +public class FrankfurterProperties { + + private String baseUrl; + private Endpoints endpoints = new Endpoints(); + private Params params = new Params(); + + @Data + public static class Endpoints { + private String latest; + private String historical; + private String currencies; + } + + @Data + public static class Params { + private String base; + private String from; + private String to; + } +} diff --git a/src/main/java/com/allobank/idr_rate_aggregator/config/SpreadProperties.java b/src/main/java/com/allobank/idr_rate_aggregator/config/SpreadProperties.java new file mode 100644 index 00000000..f43e6fb3 --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/config/SpreadProperties.java @@ -0,0 +1,14 @@ +package com.allobank.idr_rate_aggregator.config; + +import lombok.Data; +import org.springframework.boot.context.properties.ConfigurationProperties; +import org.springframework.stereotype.Component; + +@Data +@Component +@ConfigurationProperties(prefix = "app.spread") +public class SpreadProperties { + + private String githubUsername; + private double factor; +} diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml new file mode 100644 index 00000000..22d2417b --- /dev/null +++ b/src/main/resources/application.yml @@ -0,0 +1,22 @@ +server: + port: 8081 + +frankfurter: + base-url: https://api.frankfurter.app + endpoints: + latest: /latest + historical: /2024-01-01..2024-01-05 + currencies: /currencies + params: + base: IDR + from: IDR + to: USD + +app: + spread: + github-username: furqonfajri + factor: 0.00191 + +spring: + application: + name: idr-rate-aggregator From 89a61628629b47b8a92e63c161078cfb2aede784 Mon Sep 17 00:00:00 2001 From: Muhammad Furqon Fajri Date: Mon, 6 Apr 2026 12:49:56 +0700 Subject: [PATCH 03/10] feat: Implement WebClient FactoryBean with timeout and redirect config --- .../config/WebClientFactoryBean.java | 56 +++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/config/WebClientFactoryBean.java diff --git a/src/main/java/com/allobank/idr_rate_aggregator/config/WebClientFactoryBean.java b/src/main/java/com/allobank/idr_rate_aggregator/config/WebClientFactoryBean.java new file mode 100644 index 00000000..11a7c435 --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/config/WebClientFactoryBean.java @@ -0,0 +1,56 @@ +package com.allobank.idr_rate_aggregator.config; + +import io.netty.channel.ChannelOption; +import io.netty.handler.timeout.ReadTimeoutHandler; +import io.netty.handler.timeout.WriteTimeoutHandler; +import org.springframework.beans.factory.FactoryBean; +import org.springframework.beans.factory.annotation.Value; +import org.springframework.http.HttpHeaders; +import org.springframework.http.MediaType; +import org.springframework.http.client.reactive.ReactorClientHttpConnector; +import org.springframework.stereotype.Component; +import org.springframework.web.reactive.function.client.WebClient; +import reactor.netty.http.client.HttpClient; + +import java.time.Duration; +import java.util.concurrent.TimeUnit; + +@Component +public class WebClientFactoryBean implements FactoryBean { + + @Value("${frankfurter.base-url}") + private String baseUrl; + + @Override + public WebClient getObject() throws Exception { + HttpClient httpClient = HttpClient.create() + .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 5000) + .responseTimeout(Duration.ofSeconds(10)) + .followRedirect(true) + .doOnConnected(conn -> conn + .addHandlerLast(new ReadTimeoutHandler(10, TimeUnit.SECONDS)) + .addHandlerLast(new WriteTimeoutHandler(10, TimeUnit.SECONDS)) + ); + + return WebClient.builder() + .baseUrl(baseUrl) + .defaultHeader(HttpHeaders.ACCEPT, MediaType.APPLICATION_JSON_VALUE) + .clientConnector(new ReactorClientHttpConnector(httpClient)) + .filter((request, next) -> { + org.slf4j.LoggerFactory.getLogger(WebClientFactoryBean.class) + .info(">>> WebClient hitting URL: {}", request.url()); + return next.exchange(request); + }) + .build(); + } + + @Override + public Class getObjectType() { + return WebClient.class; + } + + @Override + public boolean isSingleton() { + return true; + } +} \ No newline at end of file From 3ecaa85f0230ceddb5b76c8419a97272d49e3da7 Mon Sep 17 00:00:00 2001 From: Muhammad Furqon Fajri Date: Mon, 6 Apr 2026 12:51:01 +0700 Subject: [PATCH 04/10] feat: Add DTOs and FinanceData model --- .../idr_rate_aggregator/dto/ApiResponse.java | 33 ++++++++++++++++ .../dto/CurrenciesResponse.java | 10 +++++ .../dto/HistoricalRatesResponse.java | 13 +++++++ .../dto/LatestRatesResponse.java | 16 ++++++++ .../model/FinanceData.java | 39 +++++++++++++++++++ 5 files changed, 111 insertions(+) create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/dto/ApiResponse.java create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/dto/CurrenciesResponse.java create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/dto/HistoricalRatesResponse.java create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/dto/LatestRatesResponse.java create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/model/FinanceData.java diff --git a/src/main/java/com/allobank/idr_rate_aggregator/dto/ApiResponse.java b/src/main/java/com/allobank/idr_rate_aggregator/dto/ApiResponse.java new file mode 100644 index 00000000..17b64159 --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/dto/ApiResponse.java @@ -0,0 +1,33 @@ +package com.allobank.idr_rate_aggregator.dto; + +import lombok.Builder; +import lombok.Getter; +import java.time.LocalDateTime; + +@Getter +@Builder +public class ApiResponse { + + private final boolean success; + private final String message; + private final T data; + private final LocalDateTime timestamp; + + public static ApiResponse success(T data) { + return ApiResponse.builder() + .success(true) + .message("Data retrieved successfully") + .data(data) + .timestamp(LocalDateTime.now()) + .build(); + } + + public static ApiResponse error(String message) { + return ApiResponse.builder() + .success(false) + .message(message) + .data(null) + .timestamp(LocalDateTime.now()) + .build(); + } +} diff --git a/src/main/java/com/allobank/idr_rate_aggregator/dto/CurrenciesResponse.java b/src/main/java/com/allobank/idr_rate_aggregator/dto/CurrenciesResponse.java new file mode 100644 index 00000000..01e94fdf --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/dto/CurrenciesResponse.java @@ -0,0 +1,10 @@ +package com.allobank.idr_rate_aggregator.dto; + +import lombok.Data; +import java.util.Map; + +@Data +public class CurrenciesResponse { + + private Map currencies; +} \ No newline at end of file diff --git a/src/main/java/com/allobank/idr_rate_aggregator/dto/HistoricalRatesResponse.java b/src/main/java/com/allobank/idr_rate_aggregator/dto/HistoricalRatesResponse.java new file mode 100644 index 00000000..daa8428f --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/dto/HistoricalRatesResponse.java @@ -0,0 +1,13 @@ +package com.allobank.idr_rate_aggregator.dto; + +import lombok.Data; +import java.util.Map; + +@Data +public class HistoricalRatesResponse { + + private String base; + private String startDate; + private String endDate; + private Map> rates; +} diff --git a/src/main/java/com/allobank/idr_rate_aggregator/dto/LatestRatesResponse.java b/src/main/java/com/allobank/idr_rate_aggregator/dto/LatestRatesResponse.java new file mode 100644 index 00000000..3527ec69 --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/dto/LatestRatesResponse.java @@ -0,0 +1,16 @@ +package com.allobank.idr_rate_aggregator.dto; + +import com.fasterxml.jackson.annotation.JsonProperty; +import lombok.Data; +import java.util.Map; + +@Data +public class LatestRatesResponse { + + private String base; + private String date; + private Map rates; + + @JsonProperty("USD_BuySpread_IDR") + private Double usdBuySpreadIdr; +} \ No newline at end of file diff --git a/src/main/java/com/allobank/idr_rate_aggregator/model/FinanceData.java b/src/main/java/com/allobank/idr_rate_aggregator/model/FinanceData.java new file mode 100644 index 00000000..3a60dda6 --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/model/FinanceData.java @@ -0,0 +1,39 @@ +package com.allobank.idr_rate_aggregator.model; + +import lombok.Builder; +import lombok.Getter; +import java.time.LocalDateTime; + +@Getter +@Builder +public class FinanceData { + + private final String resourceType; + private final Object data; + private final LocalDateTime fetchedAt; + + // Static factory methods untuk tiap resource type + public static FinanceData ofLatestRates(Object data) { + return FinanceData.builder() + .resourceType("latest_idr_rates") + .data(data) + .fetchedAt(LocalDateTime.now()) + .build(); + } + + public static FinanceData ofHistoricalRates(Object data) { + return FinanceData.builder() + .resourceType("historical_idr_usd") + .data(data) + .fetchedAt(LocalDateTime.now()) + .build(); + } + + public static FinanceData ofCurrencies(Object data) { + return FinanceData.builder() + .resourceType("supported_currencies") + .data(data) + .fetchedAt(LocalDateTime.now()) + .build(); + } +} From 18e6ab583b03aaaaae596a2a8e23d894f84db764 Mon Sep 17 00:00:00 2001 From: Muhammad Furqon Fajri Date: Mon, 6 Apr 2026 12:51:24 +0700 Subject: [PATCH 05/10] feat: Implement Strategy Pattern with IDRDataFetcher interface and three concrete strategies --- .../strategy/HistoricalIDRUsdFetcher.java | 45 ++++++++++++ .../strategy/IDRDataFetcher.java | 8 +++ .../strategy/LatestIDRRatesFetcher.java | 70 +++++++++++++++++++ .../strategy/SupportedCurrenciesFetcher.java | 41 +++++++++++ 4 files changed, 164 insertions(+) create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/strategy/HistoricalIDRUsdFetcher.java create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/strategy/IDRDataFetcher.java create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/strategy/LatestIDRRatesFetcher.java create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/strategy/SupportedCurrenciesFetcher.java diff --git a/src/main/java/com/allobank/idr_rate_aggregator/strategy/HistoricalIDRUsdFetcher.java b/src/main/java/com/allobank/idr_rate_aggregator/strategy/HistoricalIDRUsdFetcher.java new file mode 100644 index 00000000..2546ef34 --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/strategy/HistoricalIDRUsdFetcher.java @@ -0,0 +1,45 @@ +package com.allobank.idr_rate_aggregator.strategy; + +import com.allobank.idr_rate_aggregator.config.FrankfurterProperties; +import com.allobank.idr_rate_aggregator.model.FinanceData; +import lombok.RequiredArgsConstructor; +import lombok.extern.slf4j.Slf4j; +import org.springframework.stereotype.Component; +import org.springframework.web.reactive.function.client.WebClient; + +import java.util.Map; + +@Slf4j +@Component +@RequiredArgsConstructor +public class HistoricalIDRUsdFetcher implements IDRDataFetcher { + + private final WebClient webClient; + private final FrankfurterProperties properties; + + @Override + public FinanceData fetch() { + log.info("Fetching historical IDR/USD rates..."); + + Map result = webClient.get() + .uri(uriBuilder -> uriBuilder + .path(properties.getEndpoints().getHistorical()) + .queryParam("from", properties.getParams().getFrom()) + .queryParam("to", properties.getParams().getTo()) + .build()) + .retrieve() + .onStatus(status -> status.is4xxClientError() || status.is5xxServerError(), + response -> response.bodyToMono(String.class) + .map(body -> new RuntimeException( + "External API error: " + response.statusCode() + " - " + body))) + .bodyToMono(new org.springframework.core.ParameterizedTypeReference>() {}) + .block(); + + return FinanceData.ofHistoricalRates(result); + } + + @Override + public String getResourceType() { + return "historical_idr_usd"; + } +} diff --git a/src/main/java/com/allobank/idr_rate_aggregator/strategy/IDRDataFetcher.java b/src/main/java/com/allobank/idr_rate_aggregator/strategy/IDRDataFetcher.java new file mode 100644 index 00000000..809d54b0 --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/strategy/IDRDataFetcher.java @@ -0,0 +1,8 @@ +package com.allobank.idr_rate_aggregator.strategy; + +import com.allobank.idr_rate_aggregator.model.FinanceData; + +public interface IDRDataFetcher { + FinanceData fetch(); + String getResourceType(); +} diff --git a/src/main/java/com/allobank/idr_rate_aggregator/strategy/LatestIDRRatesFetcher.java b/src/main/java/com/allobank/idr_rate_aggregator/strategy/LatestIDRRatesFetcher.java new file mode 100644 index 00000000..1c8c17a7 --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/strategy/LatestIDRRatesFetcher.java @@ -0,0 +1,70 @@ +package com.allobank.idr_rate_aggregator.strategy; + +import com.allobank.idr_rate_aggregator.config.FrankfurterProperties; +import com.allobank.idr_rate_aggregator.config.SpreadProperties; +import com.allobank.idr_rate_aggregator.dto.LatestRatesResponse; +import com.allobank.idr_rate_aggregator.model.FinanceData; +import lombok.RequiredArgsConstructor; +import lombok.extern.slf4j.Slf4j; +import org.springframework.stereotype.Component; +import org.springframework.web.reactive.function.client.WebClient; + +import java.util.HashMap; +import java.util.Map; + +@Slf4j +@Component +@RequiredArgsConstructor +public class LatestIDRRatesFetcher implements IDRDataFetcher { + + private final WebClient webClient; + private final FrankfurterProperties properties; + private final SpreadProperties spreadProperties; + + @Override + public FinanceData fetch() { + log.info("Fetching latest IDR rates..."); + + Map rawRates = webClient.get() + .uri(uriBuilder -> uriBuilder + .path(properties.getEndpoints().getLatest()) + .queryParam("base", properties.getParams().getBase()) + .build()) + .retrieve() + .onStatus(status -> status.is4xxClientError() || status.is5xxServerError(), + response -> response.bodyToMono(String.class) + .map(body -> new RuntimeException( + "External API error: " + response.statusCode() + " - " + body))) + .bodyToMono(new org.springframework.core.ParameterizedTypeReference>() {}) + .block(); + + if (rawRates == null) { + throw new RuntimeException("Empty response from Frankfurter API for latest IDR rates"); + } + + return FinanceData.ofLatestRates(transformLatestRates(rawRates)); + } + + private Map transformLatestRates(Map raw) { + Map result = new HashMap<>(raw); + + Object ratesObj = raw.get("rates"); + if (ratesObj instanceof Map rates && rates.containsKey("USD")) { + double rateUsd = ((Number) rates.get("USD")).doubleValue(); + double spreadFactor = spreadProperties.getFactor(); + + double usdBuySpreadIdr = (1.0 / rateUsd) * (1.0 + spreadFactor); + result.put("USD_BuySpread_IDR", usdBuySpreadIdr); + + log.info("Calculated USD_BuySpread_IDR: {} (spreadFactor: {})", + usdBuySpreadIdr, spreadFactor); + } + + return result; + } + + @Override + public String getResourceType() { + return "latest_idr_rates"; + } +} \ No newline at end of file diff --git a/src/main/java/com/allobank/idr_rate_aggregator/strategy/SupportedCurrenciesFetcher.java b/src/main/java/com/allobank/idr_rate_aggregator/strategy/SupportedCurrenciesFetcher.java new file mode 100644 index 00000000..2709edde --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/strategy/SupportedCurrenciesFetcher.java @@ -0,0 +1,41 @@ +package com.allobank.idr_rate_aggregator.strategy; + +import com.allobank.idr_rate_aggregator.config.FrankfurterProperties; +import com.allobank.idr_rate_aggregator.model.FinanceData; +import lombok.RequiredArgsConstructor; +import lombok.extern.slf4j.Slf4j; +import org.springframework.stereotype.Component; +import org.springframework.web.reactive.function.client.WebClient; + +import java.util.Map; + +@Slf4j +@Component +@RequiredArgsConstructor +public class SupportedCurrenciesFetcher implements IDRDataFetcher { + + private final WebClient webClient; + private final FrankfurterProperties properties; + + @Override + public FinanceData fetch() { + log.info("Fetching supported currencies..."); + + Map result = webClient.get() + .uri(properties.getEndpoints().getCurrencies()) + .retrieve() + .onStatus(status -> status.is4xxClientError() || status.is5xxServerError(), + response -> response.bodyToMono(String.class) + .map(body -> new RuntimeException( + "External API error: " + response.statusCode() + " - " + body))) + .bodyToMono(new org.springframework.core.ParameterizedTypeReference>() {}) + .block(); + + return FinanceData.ofCurrencies(result); + } + + @Override + public String getResourceType() { + return "supported_currencies"; + } +} From 252005e99beb29f53ab5bf5a476e59e02cab9a05 Mon Sep 17 00:00:00 2001 From: Muhammad Furqon Fajri Date: Mon, 6 Apr 2026 12:52:01 +0700 Subject: [PATCH 06/10] feat: Add thread-safe FinanceDataStore, FinanceService, and ApplicationRunner for startup data loading --- .../runner/DataInitializerRunner.java | 28 ++++++++++ .../service/FinanceService.java | 53 +++++++++++++++++++ .../store/FinanceDataStore.java | 43 +++++++++++++++ 3 files changed, 124 insertions(+) create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/runner/DataInitializerRunner.java create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/service/FinanceService.java create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/store/FinanceDataStore.java diff --git a/src/main/java/com/allobank/idr_rate_aggregator/runner/DataInitializerRunner.java b/src/main/java/com/allobank/idr_rate_aggregator/runner/DataInitializerRunner.java new file mode 100644 index 00000000..99ff025f --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/runner/DataInitializerRunner.java @@ -0,0 +1,28 @@ +package com.allobank.idr_rate_aggregator.runner; + +import com.allobank.idr_rate_aggregator.service.FinanceService; +import lombok.RequiredArgsConstructor; +import lombok.extern.slf4j.Slf4j; +import org.springframework.boot.ApplicationArguments; +import org.springframework.boot.ApplicationRunner; +import org.springframework.stereotype.Component; + +@Slf4j +@Component +@RequiredArgsConstructor +public class DataInitializerRunner implements ApplicationRunner { + + private final FinanceService financeService; + + @Override + public void run(ApplicationArguments args) throws Exception { + log.info("=== DataInitializerRunner starting... ==="); + try { + financeService.initializeData(); + log.info("=== DataInitializerRunner completed successfully. ==="); + } catch (Exception e) { + log.error("=== DataInitializerRunner FAILED: {} ===", e.getMessage()); + throw e; + } + } +} diff --git a/src/main/java/com/allobank/idr_rate_aggregator/service/FinanceService.java b/src/main/java/com/allobank/idr_rate_aggregator/service/FinanceService.java new file mode 100644 index 00000000..d7d8d6cf --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/service/FinanceService.java @@ -0,0 +1,53 @@ +package com.allobank.idr_rate_aggregator.service; + +import com.allobank.idr_rate_aggregator.model.FinanceData; +import com.allobank.idr_rate_aggregator.store.FinanceDataStore; +import com.allobank.idr_rate_aggregator.strategy.IDRDataFetcher; +import lombok.RequiredArgsConstructor; +import lombok.extern.slf4j.Slf4j; +import org.springframework.stereotype.Service; + +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.Optional; + +@Slf4j +@Service +@RequiredArgsConstructor +public class FinanceService { + + private final FinanceDataStore dataStore; + private final List fetchers; + + public void initializeData() { + log.info("Starting data initialization for all resources..."); + + Map dataMap = new HashMap<>(); + + for (IDRDataFetcher fetcher : fetchers) { + try { + log.info("Fetching resource: {}", fetcher.getResourceType()); + FinanceData data = fetcher.fetch(); + dataMap.put(fetcher.getResourceType(), data); + log.info("Successfully fetched: {}", fetcher.getResourceType()); + } catch (Exception e) { + log.error("Failed to fetch resource: {}. Error: {}", + fetcher.getResourceType(), e.getMessage()); + throw new RuntimeException( + "Startup data initialization failed for: " + fetcher.getResourceType(), e); + } + } + + dataStore.loadData(dataMap); + log.info("All resources initialized successfully."); + } + + public Optional getByResourceType(String resourceType) { + return Optional.ofNullable(dataStore.get(resourceType)); + } + + public boolean isDataLoaded() { + return dataStore.isLoaded(); + } +} \ No newline at end of file diff --git a/src/main/java/com/allobank/idr_rate_aggregator/store/FinanceDataStore.java b/src/main/java/com/allobank/idr_rate_aggregator/store/FinanceDataStore.java new file mode 100644 index 00000000..7bfa0560 --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/store/FinanceDataStore.java @@ -0,0 +1,43 @@ +package com.allobank.idr_rate_aggregator.store; + +import com.allobank.idr_rate_aggregator.model.FinanceData; +import lombok.extern.slf4j.Slf4j; +import org.springframework.stereotype.Component; + +import java.util.Collections; +import java.util.Map; +import java.util.concurrent.atomic.AtomicBoolean; + +@Slf4j +@Component +public class FinanceDataStore { + + // Volatile memastikan visibility across threads + private volatile Map store = Collections.emptyMap(); + + // Flag untuk memastikan data hanya bisa di-load sekali + private final AtomicBoolean loaded = new AtomicBoolean(false); + + public void loadData(Map data) { + if (!loaded.compareAndSet(false, true)) { + log.warn("Data store already loaded. Ignoring reload attempt."); + return; + } + + // Collections.unmodifiableMap memastikan immutability setelah load + this.store = Collections.unmodifiableMap(data); + log.info("Finance data store loaded successfully with {} resources.", data.size()); + } + + public FinanceData get(String resourceType) { + return store.get(resourceType); + } + + public boolean isLoaded() { + return loaded.get(); + } + + public Map getAll() { + return store; + } +} \ No newline at end of file From f4cd9452124627e0f9050435e538b8a4267d3e33 Mon Sep 17 00:00:00 2001 From: Muhammad Furqon Fajri Date: Mon, 6 Apr 2026 12:52:20 +0700 Subject: [PATCH 07/10] feat: Add FinanceController with map-based strategy lookup, no if/else --- .../controller/FinanceController.java | 59 +++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/controller/FinanceController.java diff --git a/src/main/java/com/allobank/idr_rate_aggregator/controller/FinanceController.java b/src/main/java/com/allobank/idr_rate_aggregator/controller/FinanceController.java new file mode 100644 index 00000000..47d9efc5 --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/controller/FinanceController.java @@ -0,0 +1,59 @@ +package com.allobank.idr_rate_aggregator.controller; + +import com.allobank.idr_rate_aggregator.dto.ApiResponse; +import com.allobank.idr_rate_aggregator.model.FinanceData; +import com.allobank.idr_rate_aggregator.service.FinanceService; +import com.allobank.idr_rate_aggregator.strategy.IDRDataFetcher; +import lombok.extern.slf4j.Slf4j; +import org.springframework.http.ResponseEntity; +import org.springframework.web.bind.annotation.*; + +import java.util.List; +import java.util.Map; + +@Slf4j +@RestController +@RequestMapping("/api/finance") +public class FinanceController { + + private final FinanceService financeService; + private final Map fetcherMap; + + // Spring otomatis inject semua IDRDataFetcher bean ke dalam Map + // key = bean name, kita override dengan getResourceType() + public FinanceController(FinanceService financeService, + List fetchers) { + this.financeService = financeService; + // Build map dari resourceType → fetcher (untuk validasi resourceType) + this.fetcherMap = new java.util.HashMap<>(); + fetchers.forEach(f -> fetcherMap.put(f.getResourceType(), f)); + } + + @GetMapping("/data/{resourceType}") + public ResponseEntity> getData( + @PathVariable String resourceType) { + + log.info("Request received for resourceType: {}", resourceType); + + // Validasi resourceType — no if/else, pakai map lookup + if (!fetcherMap.containsKey(resourceType)) { + log.warn("Invalid resourceType requested: {}", resourceType); + return ResponseEntity.badRequest() + .body(ApiResponse.error( + "Invalid resourceType: '" + resourceType + "'. " + + "Valid values: " + fetcherMap.keySet())); + } + + return financeService.getByResourceType(resourceType) + .map(data -> { + log.info("Returning data for resourceType: {}", resourceType); + return ResponseEntity.ok(ApiResponse.success(data.getData())); + }) + .orElseGet(() -> { + log.error("Data not found in store for resourceType: {}", resourceType); + return ResponseEntity.internalServerError() + .body(ApiResponse.error( + "Data not available for: " + resourceType)); + }); + } +} \ No newline at end of file From 4a255758c66ac4fbf765fb0d77f1fab6cc345b9b Mon Sep 17 00:00:00 2001 From: Muhammad Furqon Fajri Date: Mon, 6 Apr 2026 12:52:38 +0700 Subject: [PATCH 08/10] test: Add unit tests for all strategy fetchers and integration test for ApplicationRunner --- .../IdrRateAggregatorApplicationTests.java | 13 ++ .../runner/DataInitializerRunnerTest.java | 59 ++++++++ .../strategy/HistoricalIDRUsdFetcherTest.java | 94 ++++++++++++ .../strategy/LatestIDRRatesFetcherTest.java | 141 ++++++++++++++++++ .../SupportedCurrenciesFetcherTest.java | 86 +++++++++++ 5 files changed, 393 insertions(+) create mode 100644 src/test/java/com/allobank/idr_rate_aggregator/IdrRateAggregatorApplicationTests.java create mode 100644 src/test/java/com/allobank/idr_rate_aggregator/runner/DataInitializerRunnerTest.java create mode 100644 src/test/java/com/allobank/idr_rate_aggregator/strategy/HistoricalIDRUsdFetcherTest.java create mode 100644 src/test/java/com/allobank/idr_rate_aggregator/strategy/LatestIDRRatesFetcherTest.java create mode 100644 src/test/java/com/allobank/idr_rate_aggregator/strategy/SupportedCurrenciesFetcherTest.java diff --git a/src/test/java/com/allobank/idr_rate_aggregator/IdrRateAggregatorApplicationTests.java b/src/test/java/com/allobank/idr_rate_aggregator/IdrRateAggregatorApplicationTests.java new file mode 100644 index 00000000..a152674d --- /dev/null +++ b/src/test/java/com/allobank/idr_rate_aggregator/IdrRateAggregatorApplicationTests.java @@ -0,0 +1,13 @@ +package com.allobank.idr_rate_aggregator; + +import org.junit.jupiter.api.Test; +import org.springframework.boot.test.context.SpringBootTest; + +@SpringBootTest +class IdrRateAggregatorApplicationTests { + + @Test + void contextLoads() { + } + +} diff --git a/src/test/java/com/allobank/idr_rate_aggregator/runner/DataInitializerRunnerTest.java b/src/test/java/com/allobank/idr_rate_aggregator/runner/DataInitializerRunnerTest.java new file mode 100644 index 00000000..529ac8f7 --- /dev/null +++ b/src/test/java/com/allobank/idr_rate_aggregator/runner/DataInitializerRunnerTest.java @@ -0,0 +1,59 @@ +package com.allobank.idr_rate_aggregator.runner; + +import com.allobank.idr_rate_aggregator.model.FinanceData; +import com.allobank.idr_rate_aggregator.store.FinanceDataStore; +import org.junit.jupiter.api.Test; +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.boot.test.context.SpringBootTest; +import org.springframework.test.context.ActiveProfiles; + +import static org.assertj.core.api.Assertions.*; + +@SpringBootTest +@ActiveProfiles("test") +class DataInitializerRunnerTest { + + @Autowired + private FinanceDataStore dataStore; + + @Test + void applicationRunner_shouldLoadAllThreeResources() { + assertThat(dataStore.isLoaded()).isTrue(); + assertThat(dataStore.getAll()).hasSize(3); + } + + @Test + void applicationRunner_shouldLoadLatestIdrRates() { + FinanceData data = dataStore.get("latest_idr_rates"); + assertThat(data).isNotNull(); + assertThat(data.getResourceType()).isEqualTo("latest_idr_rates"); + assertThat(data.getData()).isNotNull(); + } + + @Test + void applicationRunner_shouldLoadHistoricalIdrUsd() { + FinanceData data = dataStore.get("historical_idr_usd"); + assertThat(data).isNotNull(); + assertThat(data.getResourceType()).isEqualTo("historical_idr_usd"); + } + + @Test + void applicationRunner_shouldLoadSupportedCurrencies() { + FinanceData data = dataStore.get("supported_currencies"); + assertThat(data).isNotNull(); + assertThat(data.getResourceType()).isEqualTo("supported_currencies"); + } + + @Test + void applicationRunner_shouldContainUsdBuySpreadInLatestRates() { + FinanceData data = dataStore.get("latest_idr_rates"); + assertThat(data).isNotNull(); + + @SuppressWarnings("unchecked") + java.util.Map latestData = (java.util.Map) data.getData(); + assertThat(latestData).containsKey("USD_BuySpread_IDR"); + + double spread = ((Number) latestData.get("USD_BuySpread_IDR")).doubleValue(); + assertThat(spread).isGreaterThan(0); + } +} diff --git a/src/test/java/com/allobank/idr_rate_aggregator/strategy/HistoricalIDRUsdFetcherTest.java b/src/test/java/com/allobank/idr_rate_aggregator/strategy/HistoricalIDRUsdFetcherTest.java new file mode 100644 index 00000000..aef03c36 --- /dev/null +++ b/src/test/java/com/allobank/idr_rate_aggregator/strategy/HistoricalIDRUsdFetcherTest.java @@ -0,0 +1,94 @@ +package com.allobank.idr_rate_aggregator.strategy; + +import com.allobank.idr_rate_aggregator.config.FrankfurterProperties; +import com.allobank.idr_rate_aggregator.model.FinanceData; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.Test; +import org.junit.jupiter.api.extension.ExtendWith; +import org.mockito.InjectMocks; +import org.mockito.Mock; +import org.mockito.junit.jupiter.MockitoExtension; +import org.springframework.core.ParameterizedTypeReference; +import org.springframework.web.reactive.function.client.WebClient; +import reactor.core.publisher.Mono; + +import java.util.Map; + +import static org.assertj.core.api.Assertions.*; +import static org.mockito.ArgumentMatchers.any; +import static org.mockito.Mockito.*; + +@ExtendWith(MockitoExtension.class) +@org.mockito.junit.jupiter.MockitoSettings(strictness = org.mockito.quality.Strictness.LENIENT) +class HistoricalIDRUsdFetcherTest { + + @Mock + private WebClient webClient; + + @Mock + private FrankfurterProperties properties; + + @Mock + private WebClient.RequestHeadersUriSpec requestHeadersUriSpec; + + @Mock + private WebClient.RequestHeadersSpec requestHeadersSpec; + + @Mock + private WebClient.ResponseSpec responseSpec; + + @InjectMocks + private HistoricalIDRUsdFetcher fetcher; + + @BeforeEach + void setUp() { + FrankfurterProperties.Endpoints endpoints = new FrankfurterProperties.Endpoints(); + endpoints.setHistorical("/2024-01-01..2024-01-05"); + + FrankfurterProperties.Params params = new FrankfurterProperties.Params(); + params.setFrom("IDR"); + params.setTo("USD"); + + when(properties.getEndpoints()).thenReturn(endpoints); + when(properties.getParams()).thenReturn(params); + } + + @SuppressWarnings("unchecked") + @Test + void fetch_shouldReturnHistoricalFinanceData() { + // Arrange + Map mockResponse = Map.of( + "base", "IDR", + "start_date", "2024-01-01", + "end_date", "2024-01-05", + "rates", Map.of( + "2024-01-02", Map.of("USD", 6.4e-05), + "2024-01-03", Map.of("USD", 6.4e-05) + ) + ); + + when(webClient.get()).thenReturn(requestHeadersUriSpec); + when(requestHeadersUriSpec.uri(any(java.util.function.Function.class))) + .thenReturn(requestHeadersSpec); + when(requestHeadersSpec.retrieve()).thenReturn(responseSpec); + when(responseSpec.onStatus(any(), any())).thenReturn(responseSpec); + when(responseSpec.bodyToMono(any(ParameterizedTypeReference.class))) + .thenReturn(Mono.just(mockResponse)); + + // Act + FinanceData result = fetcher.fetch(); + + // Assert + assertThat(result).isNotNull(); + assertThat(result.getResourceType()).isEqualTo("historical_idr_usd"); + assertThat(result.getData()).isInstanceOf(Map.class); + + Map data = (Map) result.getData(); + assertThat(data).containsKey("rates"); + } + + @Test + void getResourceType_shouldReturnCorrectType() { + assertThat(fetcher.getResourceType()).isEqualTo("historical_idr_usd"); + } +} diff --git a/src/test/java/com/allobank/idr_rate_aggregator/strategy/LatestIDRRatesFetcherTest.java b/src/test/java/com/allobank/idr_rate_aggregator/strategy/LatestIDRRatesFetcherTest.java new file mode 100644 index 00000000..a44bc66e --- /dev/null +++ b/src/test/java/com/allobank/idr_rate_aggregator/strategy/LatestIDRRatesFetcherTest.java @@ -0,0 +1,141 @@ +package com.allobank.idr_rate_aggregator.strategy; + +import com.allobank.idr_rate_aggregator.config.FrankfurterProperties; +import com.allobank.idr_rate_aggregator.config.SpreadProperties; +import com.allobank.idr_rate_aggregator.model.FinanceData; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.Test; +import org.junit.jupiter.api.extension.ExtendWith; +import org.mockito.InjectMocks; +import org.mockito.Mock; +import org.mockito.junit.jupiter.MockitoExtension; +import org.springframework.core.ParameterizedTypeReference; +import org.springframework.web.reactive.function.client.WebClient; +import reactor.core.publisher.Mono; + +import java.util.Map; + +import static org.assertj.core.api.Assertions.*; +import static org.mockito.ArgumentMatchers.any; +import static org.mockito.Mockito.*; + +@ExtendWith(MockitoExtension.class) +@org.mockito.junit.jupiter.MockitoSettings(strictness = org.mockito.quality.Strictness.LENIENT) +class LatestIDRRatesFetcherTest { + + @Mock + private WebClient webClient; + + @Mock + private FrankfurterProperties properties; + + @Mock + private SpreadProperties spreadProperties; + + @Mock + private WebClient.RequestHeadersUriSpec requestHeadersUriSpec; + + @Mock + private WebClient.RequestHeadersSpec requestHeadersSpec; + + @Mock + private WebClient.ResponseSpec responseSpec; + + @InjectMocks + private LatestIDRRatesFetcher fetcher; + + private FrankfurterProperties.Endpoints endpoints; + private FrankfurterProperties.Params params; + + @BeforeEach + void setUp() { + endpoints = new FrankfurterProperties.Endpoints(); + endpoints.setLatest("/latest"); + + params = new FrankfurterProperties.Params(); + params.setBase("IDR"); + + when(properties.getEndpoints()).thenReturn(endpoints); + when(properties.getParams()).thenReturn(params); + when(spreadProperties.getFactor()).thenReturn(0.00191); + } + + @SuppressWarnings("unchecked") + private void mockWebClientChain(Map responseBody) { + when(webClient.get()).thenReturn(requestHeadersUriSpec); + when(requestHeadersUriSpec.uri(any(java.util.function.Function.class))) + .thenReturn(requestHeadersSpec); + when(requestHeadersSpec.retrieve()).thenReturn(responseSpec); + when(responseSpec.onStatus(any(), any())).thenReturn(responseSpec); + when(responseSpec.bodyToMono(any(ParameterizedTypeReference.class))) + .thenReturn(Mono.just(responseBody)); + } + + @Test + void fetch_shouldReturnFinanceDataWithUsdBuySpread() { + // Arrange + Map mockRates = Map.of("USD", 5.9e-05); + Map mockResponse = Map.of( + "base", "IDR", + "date", "2026-04-02", + "rates", mockRates + ); + mockWebClientChain(mockResponse); + + // Act + FinanceData result = fetcher.fetch(); + + // Assert + assertThat(result).isNotNull(); + assertThat(result.getResourceType()).isEqualTo("latest_idr_rates"); + assertThat(result.getData()).isInstanceOf(Map.class); + + Map data = (Map) result.getData(); + assertThat(data).containsKey("USD_BuySpread_IDR"); + } + + @Test + void fetch_shouldCalculateUsdBuySpreadCorrectly() { + // Arrange + double rateUsd = 5.9e-05; + double spreadFactor = 0.00191; + double expectedSpread = (1.0 / rateUsd) * (1.0 + spreadFactor); + + Map mockRates = Map.of("USD", rateUsd); + Map mockResponse = Map.of( + "base", "IDR", + "date", "2026-04-02", + "rates", mockRates + ); + mockWebClientChain(mockResponse); + + // Act + FinanceData result = fetcher.fetch(); + Map data = (Map) result.getData(); + + // Assert + assertThat((Double) data.get("USD_BuySpread_IDR")) + .isCloseTo(expectedSpread, within(0.001)); + } + + @Test + void fetch_shouldThrowException_whenResponseIsNull() { + // Arrange + when(webClient.get()).thenReturn(requestHeadersUriSpec); + when(requestHeadersUriSpec.uri(any(java.util.function.Function.class))) + .thenReturn(requestHeadersSpec); + when(requestHeadersSpec.retrieve()).thenReturn(responseSpec); + when(responseSpec.onStatus(any(), any())).thenReturn(responseSpec); + when(responseSpec.bodyToMono(any(ParameterizedTypeReference.class))) + .thenReturn(Mono.empty()); + + // Act & Assert + assertThatThrownBy(() -> fetcher.fetch()) + .isInstanceOf(RuntimeException.class); + } + + @Test + void getResourceType_shouldReturnCorrectType() { + assertThat(fetcher.getResourceType()).isEqualTo("latest_idr_rates"); + } +} diff --git a/src/test/java/com/allobank/idr_rate_aggregator/strategy/SupportedCurrenciesFetcherTest.java b/src/test/java/com/allobank/idr_rate_aggregator/strategy/SupportedCurrenciesFetcherTest.java new file mode 100644 index 00000000..e5f565a4 --- /dev/null +++ b/src/test/java/com/allobank/idr_rate_aggregator/strategy/SupportedCurrenciesFetcherTest.java @@ -0,0 +1,86 @@ +package com.allobank.idr_rate_aggregator.strategy; + +import com.allobank.idr_rate_aggregator.config.FrankfurterProperties; +import com.allobank.idr_rate_aggregator.model.FinanceData; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.Test; +import org.junit.jupiter.api.extension.ExtendWith; +import org.mockito.InjectMocks; +import org.mockito.Mock; +import org.mockito.junit.jupiter.MockitoExtension; +import org.springframework.core.ParameterizedTypeReference; +import org.springframework.web.reactive.function.client.WebClient; +import reactor.core.publisher.Mono; + +import java.util.Map; + +import static org.assertj.core.api.Assertions.*; +import static org.mockito.ArgumentMatchers.any; +import static org.mockito.Mockito.*; + +@ExtendWith(MockitoExtension.class) +@org.mockito.junit.jupiter.MockitoSettings(strictness = org.mockito.quality.Strictness.LENIENT) +class SupportedCurrenciesFetcherTest { + + @Mock + private WebClient webClient; + + @Mock + private FrankfurterProperties properties; + + @Mock + private WebClient.RequestHeadersUriSpec requestHeadersUriSpec; + + @Mock + private WebClient.RequestHeadersSpec requestHeadersSpec; + + @Mock + private WebClient.ResponseSpec responseSpec; + + @InjectMocks + private SupportedCurrenciesFetcher fetcher; + + @BeforeEach + void setUp() { + FrankfurterProperties.Endpoints endpoints = new FrankfurterProperties.Endpoints(); + endpoints.setCurrencies("/currencies"); + + when(properties.getEndpoints()).thenReturn(endpoints); + } + + @SuppressWarnings("unchecked") + @Test + void fetch_shouldReturnCurrenciesFinanceData() { + // Arrange + Map mockResponse = Map.of( + "USD", "United States Dollar", + "IDR", "Indonesian Rupiah", + "EUR", "Euro" + ); + + when(webClient.get()).thenReturn(requestHeadersUriSpec); + when(requestHeadersUriSpec.uri(any(String.class))) + .thenReturn(requestHeadersSpec); + when(requestHeadersSpec.retrieve()).thenReturn(responseSpec); + when(responseSpec.onStatus(any(), any())).thenReturn(responseSpec); + when(responseSpec.bodyToMono(any(ParameterizedTypeReference.class))) + .thenReturn(Mono.just(mockResponse)); + + // Act + FinanceData result = fetcher.fetch(); + + // Assert + assertThat(result).isNotNull(); + assertThat(result.getResourceType()).isEqualTo("supported_currencies"); + assertThat(result.getData()).isInstanceOf(Map.class); + + Map data = (Map) result.getData(); + assertThat(data).containsKey("USD"); + assertThat(data).containsKey("IDR"); + } + + @Test + void getResourceType_shouldReturnCorrectType() { + assertThat(fetcher.getResourceType()).isEqualTo("supported_currencies"); + } +} \ No newline at end of file From 6d299dc26cea3e2903d18261db8511fabeccdc78 Mon Sep 17 00:00:00 2001 From: Muhammad Furqon Fajri Date: Mon, 6 Apr 2026 12:52:55 +0700 Subject: [PATCH 09/10] docs: Add README with setup instructions, curl examples, and architectural rationale --- README.md | 300 +++++++++++++++++++++++++++++++++++------------------- 1 file changed, 194 insertions(+), 106 deletions(-) diff --git a/README.md b/README.md index 5e58ae2a..515a1a96 100644 --- a/README.md +++ b/README.md @@ -1,139 +1,227 @@ -# Allo Bank Backend Developer Take-Home Test +# IDR Rate Aggregator -Thank you for applying to our team! This take-home test is designed to evaluate your practical skills in building **production-ready** Spring Boot applications within a finance domain, focusing on architectural patterns and complex data handling. +REST API berbasis Spring Boot yang mengagregasi data nilai tukar Rupiah (IDR) +dari [Frankfurter API](https://api.frankfurter.app) publik. -## 📝 Objective +--- -Your task is to create a single Spring Boot REST API endpoint capable of aggregating data from multiple, distinct resources provided by the public, keyless **Frankfurter Exchange Rate API**. The primary focus is on handling Indonesian Rupiah (IDR) data. +## 👤 Informasi -The focus of this test is not just functional correctness, but demonstrating clean code, advanced Spring concepts, thread-safe design, and architectural clarity. +- **GitHub Username:** furqonfajri +- **Perhitungan Spread Factor:** + - Username: `furqonfajri` + - Jumlah nilai ASCII: f(102) + u(117) + r(114) + q(113) + o(111) + n(110) + f(102) + a(97) + j(106) + r(114) + i(105) = **1191** + - Spread Factor: `(1191 % 1000) / 100000.0` = **0.00191** + - Formula: `USD_BuySpread_IDR = (1 / Rate_USD) * (1 + 0.00191)` -## I. Core Task: The Polymorphic API +--- -### 1. External API Integration (Frankfurter API) +## 🚀 Cara Setup & Menjalankan Aplikasi -* **Base URL (Public):** `https://api.frankfurter.app/`. +### Prasyarat -* You must integrate with three distinct data resources to enforce the architectural pattern: +- Java 21 +- Maven 3.9.11 - 1. `/latest?base=IDR` (The latest rates relative to IDR) +### Clone & Build - 2. **Historical Data:** Query a specific, small time series (e.g., `/2024-01-01..2024-01-05?from=IDR&to=USD`). **Note:** *Use the date range provided in this example unless a different range is communicated separately.* +```bash +git clone https://github.com/furqonfajri/idr-rate-aggregator.git +cd idr-rate-aggregator +./mvnw clean install -DskipTests +``` - 3. `/currencies` (The list of all supported currency symbols) +### Menjalankan Aplikasi -### 2. Internal API Endpoint +```bash +./mvnw spring-boot:run +``` -You must expose **one single endpoint** in your application: ```GET /api/finance/data/{resourceType}``` +Aplikasi akan berjalan di **http://localhost:8081** -Where `{resourceType}` can be one of the three strings: `latest_idr_rates`, `historical_idr_usd`, or `supported_currencies`. +Saat startup, ketiga data resource akan otomatis diambil dari Frankfurter API +dan disimpan di memori sebelum menerima request apapun. -### 3. Required Functionality & Business Logic +### Menjalankan Tests -* **Resource Handling:** Your service must correctly map the three incoming `resourceType` values to the correct data fetching strategies. +```bash +./mvnw test +``` -* **Data Load:** All three resources should be fetched from the external API. +--- -* **Data Transformation (Latest IDR Rates only) - Unique Calculation:** For the **`latest_idr_rates`** resource, you must calculate and include a new field, `"USD_BuySpread_IDR"`. This is the Rupiah selling rate to USD after applying a banking spread/margin. +## 📡 Penggunaan Endpoint - **The Spread Factor Must Be Unique :** +### Base URL - 1. **Input:** Your GitHub username (e.g., `johndoe47`). - 2. **Calculation:** Calculate the sum of the Unicode (ASCII) values of all characters in your lowercase GitHub username string. - 3. **Spread Factor Derivation:** `Spread Factor = (Sum of Unicode Values % 1000) / 100000.0` - *(This will yield a unique factor between 0.00000 and 0.00999, ensuring a personalized result.)* +``` +http://localhost:8081/api/finance/data/{resourceType} +``` - **Final Formula:** `USD_BuySpread_IDR = (1 / Rate_USD) * (1 + Spread Factor)` (where `Rate_USD` is the value from the API when `base=IDR`). +### 1. Latest IDR Rates -* **Other Resources:** The `historical_idr_usd` and `supported_currencies` resources can return their data with minimal transformation, but the final output must be a unified JSON array of results. +```bash +curl http://localhost:8081/api/finance/data/latest_idr_rates +``` -## II. Architectural Constraints +**Response:** -Meeting the core task is only one part of the solution. The following constraints must be strictly adhered to and will be heavily weighted during evaluation: +```json +{ + "success": true, + "message": "Data retrieved successfully", + "data": { + "date": "2026-04-02", + "amount": 1.0, + "base": "IDR", + "rates": { + "USD": 5.9e-5, + "EUR": 5.1e-5 + }, + "USD_BuySpread_IDR": 16981.525423728814 + }, + "timestamp": "2026-04-06T11:39:37.278" +} +``` -### Constraint A: The Strategy Pattern +### 2. Historical IDR/USD Rates -The logic for handling the three different resources (`latest_idr_rates`, `historical_idr_usd`, `supported_currencies`) must be implemented using the **Strategy Design Pattern**. +```bash +curl http://localhost:8081/api/finance/data/historical_idr_usd +``` -1. Define a clear **Strategy Interface** (e.g., `IDRDataFetcher`). +**Response:** -2. Implement **three concrete strategy classes** (one for each resource). +```json +{ + "success": true, + "message": "Data retrieved successfully", + "data": { + "amount": 1.0, + "base": "IDR", + "start_date": "2023-12-29", + "end_date": "2024-01-05", + "rates": { + "2024-01-02": { "USD": 6.4e-5 }, + "2024-01-03": { "USD": 6.4e-5 } + } + }, + "timestamp": "2026-04-06T11:40:24.570" +} +``` -3. The main `Controller` should dynamically select the correct strategy implementation using a map-based lookup injected by Spring, avoiding any manual `if/else` or `switch` logic in the controller layer. +### 3. Supported Currencies -### Constraint B: Client Factory Bean +```bash +curl http://localhost:8081/api/finance/data/supported_currencies +``` -The instance of your chosen external API client (`WebClient` or `RestTemplate`) **must be defined and created within a custom implementation of Spring's `FactoryBean` interface**. +**Response:** -* This `FactoryBean` should be responsible for externalizing the API Base URL via `@Value` or `@ConfigurationProperties` and applying any initial configuration (e.g., timeouts, shared headers). +```json +{ + "success": true, + "message": "Data retrieved successfully", + "data": { + "USD": "United States Dollar", + "IDR": "Indonesian Rupiah", + "EUR": "Euro" + }, + "timestamp": "2026-04-06T11:41:00.568" +} +``` -* ***You may not define the client as a simple `@Bean` in a `@Configuration` class.*** - -### Constraint C: Startup Data Runner & Immutability - -The aggregated data for **ALL three resources** must be fetched **exactly once on application startup** and loaded into an in-memory store. - -1. Use a Spring Boot **`ApplicationRunner`** or **`CommandLineRunner`** component to initiate the data fetching process. - -2. The API endpoint (`GET /api/finance/data/{resourceType}`) must serve the data from this **in-memory store**, not by making a new call to the external API on every request. - -3. The in-memory storage mechanism (e.g., a service holding the data) must be designed to be **thread-safe** and ensure the data is **immutable** once the `ApplicationRunner` has finished loading it. - -## III. Production Readiness & Deliverables - -Your final solution must demonstrate production quality through code, testing, and communication. - -### 1. Robustness & Best Practices - -* Graceful **Error Handling** for network failures or 4xx/5xx responses from the external API. - -* Proper use of **Configuration Properties** (e.g., `application.yml`) for external service URLs. - -* Clear separation of concerns (Controller, Service, Model/DTO, etc.). - -### 2. Testing - -* **Unit Tests** for all three `IDRDataFetcher` strategy implementations, ensuring data calculation and transformation logic is covered (using mock clients for external calls). - -* **Integration Tests** to verify the `ApplicationRunner` successfully initializes and loads the data into the in-memory store before the application context is ready. - -### 3. Documentation - -A clear `README.md` is mandatory. It must include: - -* **Setup/Run Instructions:** Clear steps to clone, build, and run the application and tests. - -* **Endpoint Usage:** Example cURL commands to test the three different resource types. - -* **Personalization Note:** Clearly state your GitHub username and show the exact **Spread Factor** (e.g., `0.00765`) calculated by your function. - -* --- - -* ### 🛠️ Architectural Rationale - - This section should contain a brief, but detailed, explanation answering the following questions: - - 1. **Polymorphism Justification:** Explain *why* the Strategy Pattern was used over a simpler conditional block in the service layer for handling the multi-resource endpoint. Discuss the benefits in terms of **extensibility** and **maintainability**. - - 2. **Client Factory:** Explain the specific role and benefit of using a **`FactoryBean`** to construct the external API client. Why is this preferable to defining the client using a standard `@Bean` method in this scenario? - - 3. **Startup Runner Choice:** Justify the choice of using an `ApplicationRunner` (or `CommandLineRunner`) for the initial data ingestion over a simpler `@PostConstruct` method. - -## IV. Submission & Review Process - -1. **Fork** this repository. - -2. Implement your solution on a dedicated feature branch (e.g., `feat/idr-rate-aggregator`). - -3. When complete, submit your solution via a **Pull Request (PR)** back to the main repository. -4. Please complete the form to submit your technical test: [Click Here](https://forms.gle/nZKQ2EjTCPfAKHog7) - -**Your PR will be evaluated on the following:** - -* **Commit History:** Clean, atomic, and descriptive commit messages (e.g., "feat: Implement IDR latest rates strategy," "fix: Correctly calculate IDR spread in tests"). - -* **PR Description:** The description must clearly summarize the solution and **must contain the full answers** to the three "Architectural Rationale" questions from Section III. - -* **Code Review Readiness:** The code should be well-structured and ready for immediate review. - -Good luck! +### 4. Resource Type Tidak Valid (400 Bad Request) + +```bash +curl http://localhost:8081/api/finance/data/invalid_type +``` + +**Response:** + +```json +{ + "success": false, + "message": "Invalid resourceType: 'invalid_type'. Valid values: [historical_idr_usd, latest_idr_rates, supported_currencies]", + "data": null, + "timestamp": "2026-04-06T11:41:41.054" +} +``` + +--- + +## 🏗️ Alasan Arsitektur + +### 1. Polimorphism — Mengapa Strategy Pattern? + +Strategy Pattern dipilih dibandingkan blok `if/else` atau `switch` biasa dengan alasan berikut: + +**Ekstensibilitas:** Menambahkan resource type baru hanya membutuhkan pembuatan class baru yang mengimplementasikan interface `IDRDataFetcher` dan diberi anotasi `@Component`. Tidak ada kode yang sudah ada yang perlu dimodifikasi — ini mengikuti prinsip Open/Closed. + +**Kemudahan Perawatan:** Setiap class fetcher memiliki satu tanggung jawab. `LatestIDRRatesFetcher` hanya menangani logika rates terbaru, `HistoricalIDRUsdFetcher` hanya menangani data historis, dan seterusnya. Hal ini membuat kode lebih mudah dibaca, diuji, dan di-debug secara independen. + +**Tidak Ada Logika Kondisional di Controller:** Spring secara otomatis meng-inject semua bean `IDRDataFetcher` ke dalam `Map` dengan key dari `getResourceType()`. Controller cukup melakukan map lookup — tanpa `if/else` atau `switch` sama sekali, membuat kode lebih bersih dan tidak rentan terhadap kesalahan. + +--- + +### 2. Client Factory — Mengapa FactoryBean dibanding @Bean biasa? + +Penggunaan `FactoryBean` memberikan beberapa keuntungan dibanding method `@Bean` standar: + +**Enkapsulasi Logika Konstruksi yang Kompleks:** `WebClientFactoryBean` mengenkapsulasi semua detail konstruksi WebClient — konfigurasi timeout, penanganan redirect, filter logging, dan injeksi base URL — dalam satu class yang kohesif, bukan sebuah method di dalam configuration class. + +**Desain OOP yang Lebih Baik:** `FactoryBean` adalah sebuah interface, artinya factory itu sendiri adalah Spring-managed bean dengan lifecycle-nya sendiri. Dapat diuji secara independen, di-subclass, atau diganti tanpa menyentuh konfigurasi lain. + +**Pemisahan Concern:** Configuration class seharusnya mendeklarasikan bean apa yang ada, bukan bagaimana objek kompleks dibangun. `FactoryBean` memisahkan concern "cara membangun" ke dalam class tersendiri yang berdedikasi, sesuai dengan prinsip Single Responsibility. + +--- + +### 3. Startup Runner — Mengapa ApplicationRunner dibanding @PostConstruct? + +**ApplicationRunner berjalan setelah ApplicationContext sepenuhnya siap:** `@PostConstruct` berjalan saat inisialisasi bean, sebelum context sepenuhnya dimulai. Artinya bean lain seperti WebClient dan properties mungkin belum sepenuhnya terinisialisasi, berisiko menyebabkan `NullPointerException` atau konfigurasi yang tidak lengkap. + +**Penanganan Error yang Lebih Baik:** Jika `ApplicationRunner.run()` melempar exception, Spring Boot akan menghentikan startup secara graceful dan mencatat pesan kegagalan yang jelas. Kegagalan `@PostConstruct` terkadang bisa tertelan atau menyebabkan error startup yang tidak jelas. + +**Akses ke Application Arguments:** `ApplicationRunner` menerima `ApplicationArguments`, sehingga lebih fleksibel untuk kebutuhan masa depan seperti mengaktifkan/menonaktifkan pemuatan data startup melalui command-line flag. + +**Pemisahan yang Lebih Bersih:** `ApplicationRunner` adalah komponen berdedikasi dengan satu tujuan yang jelas — menjalankan logika setelah startup. `@PostConstruct` mencampur logika inisialisasi ke dalam lifecycle method bean, yang lebih sulit diuji dan dipahami. + +--- + +## 🗂️ Struktur Project + +``` +src/ +├── main/java/com/allobank/idr_rate_aggregator/ +│ ├── config/ +│ │ ├── WebClientFactoryBean.java +│ │ ├── FrankfurterProperties.java +│ │ └── SpreadProperties.java +│ ├── controller/ +│ │ └── FinanceController.java +│ ├── dto/ +│ │ ├── ApiResponse.java +│ │ ├── LatestRatesResponse.java +│ │ ├── HistoricalRatesResponse.java +│ │ └── CurrenciesResponse.java +│ ├── model/ +│ │ └── FinanceData.java +│ ├── strategy/ +│ │ ├── IDRDataFetcher.java +│ │ ├── LatestIDRRatesFetcher.java +│ │ ├── HistoricalIDRUsdFetcher.java +│ │ └── SupportedCurrenciesFetcher.java +│ ├── store/ +│ │ └── FinanceDataStore.java +│ ├── runner/ +│ │ └── DataInitializerRunner.java +│ └── service/ +│ └── FinanceService.java +└── test/java/com/allobank/idr_rate_aggregator/ + ├── strategy/ + │ ├── LatestIDRRatesFetcherTest.java + │ ├── HistoricalIDRUsdFetcherTest.java + │ └── SupportedCurrenciesFetcherTest.java + └── runner/ + └── DataInitializerRunnerTest.java +``` From d2627c007dbe827655429b4c412e0ba7fd9a84e8 Mon Sep 17 00:00:00 2001 From: Muhammad Furqon Fajri Date: Mon, 6 Apr 2026 12:55:30 +0700 Subject: [PATCH 10/10] chore: Add Maven wrapper and main application entry point --- .gitattributes | 2 + .gitignore | 33 ++ .mvn/wrapper/maven-wrapper.properties | 3 + mvnw | 295 ++++++++++++++++++ mvnw.cmd | 189 +++++++++++ .../IdrRateAggregatorApplication.java | 13 + 6 files changed, 535 insertions(+) create mode 100644 .gitattributes create mode 100644 .gitignore create mode 100644 .mvn/wrapper/maven-wrapper.properties create mode 100644 mvnw create mode 100644 mvnw.cmd create mode 100644 src/main/java/com/allobank/idr_rate_aggregator/IdrRateAggregatorApplication.java diff --git a/.gitattributes b/.gitattributes new file mode 100644 index 00000000..3b41682a --- /dev/null +++ b/.gitattributes @@ -0,0 +1,2 @@ +/mvnw text eol=lf +*.cmd text eol=crlf diff --git a/.gitignore b/.gitignore new file mode 100644 index 00000000..667aaef0 --- /dev/null +++ b/.gitignore @@ -0,0 +1,33 @@ +HELP.md +target/ +.mvn/wrapper/maven-wrapper.jar +!**/src/main/**/target/ +!**/src/test/**/target/ + +### STS ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache + +### IntelliJ IDEA ### +.idea +*.iws +*.iml +*.ipr + +### NetBeans ### +/nbproject/private/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ +build/ +!**/src/main/**/build/ +!**/src/test/**/build/ + +### VS Code ### +.vscode/ diff --git a/.mvn/wrapper/maven-wrapper.properties b/.mvn/wrapper/maven-wrapper.properties new file mode 100644 index 00000000..c595b009 --- /dev/null +++ b/.mvn/wrapper/maven-wrapper.properties @@ -0,0 +1,3 @@ +wrapperVersion=3.3.4 +distributionType=only-script +distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.14/apache-maven-3.9.14-bin.zip diff --git a/mvnw b/mvnw new file mode 100644 index 00000000..bd8896bf --- /dev/null +++ b/mvnw @@ -0,0 +1,295 @@ +#!/bin/sh +# ---------------------------------------------------------------------------- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +# ---------------------------------------------------------------------------- + +# ---------------------------------------------------------------------------- +# Apache Maven Wrapper startup batch script, version 3.3.4 +# +# Optional ENV vars +# ----------------- +# JAVA_HOME - location of a JDK home dir, required when download maven via java source +# MVNW_REPOURL - repo url base for downloading maven distribution +# MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven +# MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output +# ---------------------------------------------------------------------------- + +set -euf +[ "${MVNW_VERBOSE-}" != debug ] || set -x + +# OS specific support. +native_path() { printf %s\\n "$1"; } +case "$(uname)" in +CYGWIN* | MINGW*) + [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")" + native_path() { cygpath --path --windows "$1"; } + ;; +esac + +# set JAVACMD and JAVACCMD +set_java_home() { + # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched + if [ -n "${JAVA_HOME-}" ]; then + if [ -x "$JAVA_HOME/jre/sh/java" ]; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + JAVACCMD="$JAVA_HOME/jre/sh/javac" + else + JAVACMD="$JAVA_HOME/bin/java" + JAVACCMD="$JAVA_HOME/bin/javac" + + if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then + echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2 + echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2 + return 1 + fi + fi + else + JAVACMD="$( + 'set' +e + 'unset' -f command 2>/dev/null + 'command' -v java + )" || : + JAVACCMD="$( + 'set' +e + 'unset' -f command 2>/dev/null + 'command' -v javac + )" || : + + if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then + echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2 + return 1 + fi + fi +} + +# hash string like Java String::hashCode +hash_string() { + str="${1:-}" h=0 + while [ -n "$str" ]; do + char="${str%"${str#?}"}" + h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296)) + str="${str#?}" + done + printf %x\\n $h +} + +verbose() { :; } +[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; } + +die() { + printf %s\\n "$1" >&2 + exit 1 +} + +trim() { + # MWRAPPER-139: + # Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds. + # Needed for removing poorly interpreted newline sequences when running in more + # exotic environments such as mingw bash on Windows. + printf "%s" "${1}" | tr -d '[:space:]' +} + +scriptDir="$(dirname "$0")" +scriptName="$(basename "$0")" + +# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties +while IFS="=" read -r key value; do + case "${key-}" in + distributionUrl) distributionUrl=$(trim "${value-}") ;; + distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;; + esac +done <"$scriptDir/.mvn/wrapper/maven-wrapper.properties" +[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties" + +case "${distributionUrl##*/}" in +maven-mvnd-*bin.*) + MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ + case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in + *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;; + :Darwin*x86_64) distributionPlatform=darwin-amd64 ;; + :Darwin*arm64) distributionPlatform=darwin-aarch64 ;; + :Linux*x86_64*) distributionPlatform=linux-amd64 ;; + *) + echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2 + distributionPlatform=linux-amd64 + ;; + esac + distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip" + ;; +maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;; +*) MVN_CMD="mvn${scriptName#mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;; +esac + +# apply MVNW_REPOURL and calculate MAVEN_HOME +# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-,maven-mvnd--}/ +[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}" +distributionUrlName="${distributionUrl##*/}" +distributionUrlNameMain="${distributionUrlName%.*}" +distributionUrlNameMain="${distributionUrlNameMain%-bin}" +MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}" +MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")" + +exec_maven() { + unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || : + exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD" +} + +if [ -d "$MAVEN_HOME" ]; then + verbose "found existing MAVEN_HOME at $MAVEN_HOME" + exec_maven "$@" +fi + +case "${distributionUrl-}" in +*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;; +*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;; +esac + +# prepare tmp dir +if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then + clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; } + trap clean HUP INT TERM EXIT +else + die "cannot create temp dir" +fi + +mkdir -p -- "${MAVEN_HOME%/*}" + +# Download and Install Apache Maven +verbose "Couldn't find MAVEN_HOME, downloading and installing it ..." +verbose "Downloading from: $distributionUrl" +verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName" + +# select .zip or .tar.gz +if ! command -v unzip >/dev/null; then + distributionUrl="${distributionUrl%.zip}.tar.gz" + distributionUrlName="${distributionUrl##*/}" +fi + +# verbose opt +__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR='' +[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v + +# normalize http auth +case "${MVNW_PASSWORD:+has-password}" in +'') MVNW_USERNAME='' MVNW_PASSWORD='' ;; +has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;; +esac + +if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then + verbose "Found wget ... using wget" + wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl" +elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then + verbose "Found curl ... using curl" + curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl" +elif set_java_home; then + verbose "Falling back to use Java to download" + javaSource="$TMP_DOWNLOAD_DIR/Downloader.java" + targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName" + cat >"$javaSource" <<-END + public class Downloader extends java.net.Authenticator + { + protected java.net.PasswordAuthentication getPasswordAuthentication() + { + return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() ); + } + public static void main( String[] args ) throws Exception + { + setDefault( new Downloader() ); + java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() ); + } + } + END + # For Cygwin/MinGW, switch paths to Windows format before running javac and java + verbose " - Compiling Downloader.java ..." + "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java" + verbose " - Running Downloader.java ..." + "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")" +fi + +# If specified, validate the SHA-256 sum of the Maven distribution zip file +if [ -n "${distributionSha256Sum-}" ]; then + distributionSha256Result=false + if [ "$MVN_CMD" = mvnd.sh ]; then + echo "Checksum validation is not supported for maven-mvnd." >&2 + echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2 + exit 1 + elif command -v sha256sum >/dev/null; then + if echo "$distributionSha256Sum $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c - >/dev/null 2>&1; then + distributionSha256Result=true + fi + elif command -v shasum >/dev/null; then + if echo "$distributionSha256Sum $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then + distributionSha256Result=true + fi + else + echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2 + echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2 + exit 1 + fi + if [ $distributionSha256Result = false ]; then + echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2 + echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2 + exit 1 + fi +fi + +# unzip and move +if command -v unzip >/dev/null; then + unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip" +else + tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar" +fi + +# Find the actual extracted directory name (handles snapshots where filename != directory name) +actualDistributionDir="" + +# First try the expected directory name (for regular distributions) +if [ -d "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" ]; then + if [ -f "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/bin/$MVN_CMD" ]; then + actualDistributionDir="$distributionUrlNameMain" + fi +fi + +# If not found, search for any directory with the Maven executable (for snapshots) +if [ -z "$actualDistributionDir" ]; then + # enable globbing to iterate over items + set +f + for dir in "$TMP_DOWNLOAD_DIR"/*; do + if [ -d "$dir" ]; then + if [ -f "$dir/bin/$MVN_CMD" ]; then + actualDistributionDir="$(basename "$dir")" + break + fi + fi + done + set -f +fi + +if [ -z "$actualDistributionDir" ]; then + verbose "Contents of $TMP_DOWNLOAD_DIR:" + verbose "$(ls -la "$TMP_DOWNLOAD_DIR")" + die "Could not find Maven distribution directory in extracted archive" +fi + +verbose "Found extracted Maven distribution directory: $actualDistributionDir" +printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$actualDistributionDir/mvnw.url" +mv -- "$TMP_DOWNLOAD_DIR/$actualDistributionDir" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME" + +clean || : +exec_maven "$@" diff --git a/mvnw.cmd b/mvnw.cmd new file mode 100644 index 00000000..92450f93 --- /dev/null +++ b/mvnw.cmd @@ -0,0 +1,189 @@ +<# : batch portion +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM http://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Apache Maven Wrapper startup batch script, version 3.3.4 +@REM +@REM Optional ENV vars +@REM MVNW_REPOURL - repo url base for downloading maven distribution +@REM MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven +@REM MVNW_VERBOSE - true: enable verbose log; others: silence the output +@REM ---------------------------------------------------------------------------- + +@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0) +@SET __MVNW_CMD__= +@SET __MVNW_ERROR__= +@SET __MVNW_PSMODULEP_SAVE=%PSModulePath% +@SET PSModulePath= +@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @( + IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B) +) +@SET PSModulePath=%__MVNW_PSMODULEP_SAVE% +@SET __MVNW_PSMODULEP_SAVE= +@SET __MVNW_ARG0_NAME__= +@SET MVNW_USERNAME= +@SET MVNW_PASSWORD= +@IF NOT "%__MVNW_CMD__%"=="" ("%__MVNW_CMD__%" %*) +@echo Cannot start maven from wrapper >&2 && exit /b 1 +@GOTO :EOF +: end batch / begin powershell #> + +$ErrorActionPreference = "Stop" +if ($env:MVNW_VERBOSE -eq "true") { + $VerbosePreference = "Continue" +} + +# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties +$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl +if (!$distributionUrl) { + Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties" +} + +switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) { + "maven-mvnd-*" { + $USE_MVND = $true + $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip" + $MVN_CMD = "mvnd.cmd" + break + } + default { + $USE_MVND = $false + $MVN_CMD = $script -replace '^mvnw','mvn' + break + } +} + +# apply MVNW_REPOURL and calculate MAVEN_HOME +# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-,maven-mvnd--}/ +if ($env:MVNW_REPOURL) { + $MVNW_REPO_PATTERN = if ($USE_MVND -eq $False) { "/org/apache/maven/" } else { "/maven/mvnd/" } + $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace "^.*$MVNW_REPO_PATTERN",'')" +} +$distributionUrlName = $distributionUrl -replace '^.*/','' +$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$','' + +$MAVEN_M2_PATH = "$HOME/.m2" +if ($env:MAVEN_USER_HOME) { + $MAVEN_M2_PATH = "$env:MAVEN_USER_HOME" +} + +if (-not (Test-Path -Path $MAVEN_M2_PATH)) { + New-Item -Path $MAVEN_M2_PATH -ItemType Directory | Out-Null +} + +$MAVEN_WRAPPER_DISTS = $null +if ((Get-Item $MAVEN_M2_PATH).Target[0] -eq $null) { + $MAVEN_WRAPPER_DISTS = "$MAVEN_M2_PATH/wrapper/dists" +} else { + $MAVEN_WRAPPER_DISTS = (Get-Item $MAVEN_M2_PATH).Target[0] + "/wrapper/dists" +} + +$MAVEN_HOME_PARENT = "$MAVEN_WRAPPER_DISTS/$distributionUrlNameMain" +$MAVEN_HOME_NAME = ([System.Security.Cryptography.SHA256]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join '' +$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME" + +if (Test-Path -Path "$MAVEN_HOME" -PathType Container) { + Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME" + Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD" + exit $? +} + +if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) { + Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl" +} + +# prepare tmp dir +$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile +$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir" +$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null +trap { + if ($TMP_DOWNLOAD_DIR.Exists) { + try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null } + catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" } + } +} + +New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null + +# Download and Install Apache Maven +Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..." +Write-Verbose "Downloading from: $distributionUrl" +Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName" + +$webclient = New-Object System.Net.WebClient +if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) { + $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD) +} +[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 +$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null + +# If specified, validate the SHA-256 sum of the Maven distribution zip file +$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum +if ($distributionSha256Sum) { + if ($USE_MVND) { + Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." + } + Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash + if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) { + Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property." + } +} + +# unzip and move +Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null + +# Find the actual extracted directory name (handles snapshots where filename != directory name) +$actualDistributionDir = "" + +# First try the expected directory name (for regular distributions) +$expectedPath = Join-Path "$TMP_DOWNLOAD_DIR" "$distributionUrlNameMain" +$expectedMvnPath = Join-Path "$expectedPath" "bin/$MVN_CMD" +if ((Test-Path -Path $expectedPath -PathType Container) -and (Test-Path -Path $expectedMvnPath -PathType Leaf)) { + $actualDistributionDir = $distributionUrlNameMain +} + +# If not found, search for any directory with the Maven executable (for snapshots) +if (!$actualDistributionDir) { + Get-ChildItem -Path "$TMP_DOWNLOAD_DIR" -Directory | ForEach-Object { + $testPath = Join-Path $_.FullName "bin/$MVN_CMD" + if (Test-Path -Path $testPath -PathType Leaf) { + $actualDistributionDir = $_.Name + } + } +} + +if (!$actualDistributionDir) { + Write-Error "Could not find Maven distribution directory in extracted archive" +} + +Write-Verbose "Found extracted Maven distribution directory: $actualDistributionDir" +Rename-Item -Path "$TMP_DOWNLOAD_DIR/$actualDistributionDir" -NewName $MAVEN_HOME_NAME | Out-Null +try { + Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null +} catch { + if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) { + Write-Error "fail to move MAVEN_HOME" + } +} finally { + try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null } + catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" } +} + +Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD" diff --git a/src/main/java/com/allobank/idr_rate_aggregator/IdrRateAggregatorApplication.java b/src/main/java/com/allobank/idr_rate_aggregator/IdrRateAggregatorApplication.java new file mode 100644 index 00000000..5a02e04c --- /dev/null +++ b/src/main/java/com/allobank/idr_rate_aggregator/IdrRateAggregatorApplication.java @@ -0,0 +1,13 @@ +package com.allobank.idr_rate_aggregator; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; +import org.springframework.boot.context.properties.EnableConfigurationProperties; + +@SpringBootApplication +@EnableConfigurationProperties +public class IdrRateAggregatorApplication { + public static void main(String[] args) { + SpringApplication.run(IdrRateAggregatorApplication.class, args); + } +}