Resposta do desafio

backend-challenge/.gitignore

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+HELP.md
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### 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/
+
+### VS Code ###
+.vscode/

backend-challenge/README.md

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+Backend Challenge BIT - SP
+
+Esse projeto foi construído usando uma versão simplificada da Clean Architecture (http://blog.cleancoder.com/uncle-bob/2012/08/13/the-clean-architecture.html).
+
+Utilizamos o Spring Boot como facilitador, na sua última versão disponível (2.1.3).
+
+Para construir a aplicação, utilize o comando:
+
+mvn clean package
+
+Desta forma, no diretório "target" será gerado o jar "backend-challenge-0.0.1-SNAPSHOT.jar", que pode ser executado com o comando:
+
+java -jar target\backend-challenge-0.0.1-SNAPSHOT.jar
+
+Ou, utilizando o plugin do maven do Spring Boot, sem precisar pré construir a aplicação:
+
+mvn spring-boot:run
+
+

backend-challenge/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.1.3.RELEASE</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>br.com.bonaldo</groupId>
+	<artifactId>backend-challenge</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>backend-challenge</name>
+	<description>backend-challenge</description>
+
+	<properties>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

backend-challenge/src/main/java/br/com/bonaldo/backendchallenge/BackendChallengeApplication.java

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+package br.com.bonaldo.backendchallenge;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class BackendChallengeApplication {
+	public static void main(String[] args) {
+		SpringApplication.run(BackendChallengeApplication.class, args);
+	}
+}

backend-challenge/src/main/java/br/com/bonaldo/backendchallenge/config/RestTemplateConfig.java

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+package br.com.bonaldo.backendchallenge.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.RestTemplate;
+
+@Configuration
+public class RestTemplateConfig {
+
+    @Bean
+    public RestTemplate restTemplate() {
+        return new RestTemplate();
+    }
+}

backend-challenge/src/main/java/br/com/bonaldo/backendchallenge/domains/Dimension.java

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+package br.com.bonaldo.backendchallenge.domains;
+
+import br.com.bonaldo.backendchallenge.gateways.http.json.DimensionResponse;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+import java.math.BigDecimal;
+
+@Data
+@AllArgsConstructor
+public class Dimension {
+    private BigDecimal weight;
+    private BigDecimal height;
+    private BigDecimal width;
+    private BigDecimal length;
+
+    public Dimension(final DimensionResponse dimensionResponse) {
+        this.weight = dimensionResponse.getWeight();
+        this.height = dimensionResponse.getHeight();
+        this.length = dimensionResponse.getLength();
+        this.width = dimensionResponse.getWidth();
+    }
+}

backend-challenge/src/main/java/br/com/bonaldo/backendchallenge/domains/OrderItem.java

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+package br.com.bonaldo.backendchallenge.domains;
+
+import br.com.bonaldo.backendchallenge.gateways.http.json.OrderItemResponse;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+public class OrderItem {
+    private String name;
+    private String code;
+    private LocalDateTime date;
+    private Dimension dimension;
+
+    public OrderItem(final OrderItemResponse orderItemResponse) {
+        this.name = orderItemResponse.getName();
+        this.code = orderItemResponse.getCode();
+        this.date = orderItemResponse.getDate();
+        this.dimension = new Dimension(orderItemResponse.getDimension());
+    }
+}

backend-challenge/src/main/java/br/com/bonaldo/backendchallenge/gateways/OrderGateway.java

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+package br.com.bonaldo.backendchallenge.gateways;
+
+import br.com.bonaldo.backendchallenge.gateways.http.json.OrderItemResponse;
+
+import java.util.List;
+
+public interface OrderGateway {
+    List<OrderItemResponse> getOrderItems();
+}

backend-challenge/src/main/java/br/com/bonaldo/backendchallenge/gateways/controllers/ItemController.java

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+package br.com.bonaldo.backendchallenge.gateways.controllers;
+
+import br.com.bonaldo.backendchallenge.gateways.controllers.json.ItemResponse;
+import br.com.bonaldo.backendchallenge.usecases.FilterOrderItems;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Slf4j
+@RestController
+@RequestMapping("/item")
+@RequiredArgsConstructor
+public class ItemController {
+
+    private final FilterOrderItems filterOrderItems;
+
+    @GetMapping(produces = MediaType.APPLICATION_JSON_VALUE)
+    public List<ItemResponse> findItems(
+            @RequestParam(value = "begindate") final String beginDate,
+            @RequestParam(value = "finaldate") final String finalDate) {
+
+        log.info("Searching for items with date between {} and {}", beginDate, finalDate);
+
+        LocalDate startDate = parseStringDate(beginDate);
+        LocalDate endDate = parseStringDate(finalDate);
+
+        return filterOrderItems.execute(startDate, endDate)
+                .stream()
+                .map(ItemResponse::new)
+                .collect(Collectors.toList());
+    }
+
+    private LocalDate parseStringDate(final String stringDate) {
+        DateTimeFormatter dtf = DateTimeFormatter.ofPattern("dd-MM-yyyy");
+        return LocalDate.from(dtf.parse(stringDate));
+    }
+}

backend-challenge/src/main/java/br/com/bonaldo/backendchallenge/gateways/controllers/json/DimensionResponse.java

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+package br.com.bonaldo.backendchallenge.gateways.controllers.json;
+
+import br.com.bonaldo.backendchallenge.domains.Dimension;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+
+@Data
+public class DimensionResponse implements Serializable {
+    private BigDecimal weight;
+    private BigDecimal height;
+    private BigDecimal width;
+    private BigDecimal length;
+
+    public DimensionResponse(final Dimension dimension) {
+        this.weight = dimension.getWeight();
+        this.height = dimension.getHeight();
+        this.width = dimension.getWidth();
+        this.length = dimension.getLength();
+    }
+}

backend-challenge/src/main/java/br/com/bonaldo/backendchallenge/gateways/controllers/json/ItemResponse.java

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+package br.com.bonaldo.backendchallenge.gateways.controllers.json;
+
+import br.com.bonaldo.backendchallenge.domains.OrderItem;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+@Data
+public class ItemResponse implements Serializable {
+    private String name;
+    private String code;
+    private LocalDateTime date;
+    private DimensionResponse dimension;
+
+    public ItemResponse(final OrderItem orderItem) {
+        this.name = orderItem.getName();
+        this.code = orderItem.getCode();
+        this.date = orderItem.getDate();
+        this.dimension = new DimensionResponse(orderItem.getDimension());
+    }
+}

backend-challenge/src/main/java/br/com/bonaldo/backendchallenge/gateways/http/CustomExceptionHandler.java

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+package br.com.bonaldo.backendchallenge.gateways.http;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+import javax.servlet.http.HttpServletRequest;
+import java.time.DateTimeException;
+
+@Slf4j
+@ControllerAdvice
+public class CustomExceptionHandler {
+
+    @ExceptionHandler(DateTimeException.class)
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    @ResponseBody
+    public ResponseEntity<String> handleInvalidDateException(HttpServletRequest req, Exception ex) {
+        log.info("Invalid date format on request: {}, with params: {}, exception: {}", req.getRequestURI(), req.getQueryString(), ex.getMessage());
+        return ResponseEntity.badRequest().body("Invalid date format");
+    }
+}

backend-challenge/src/main/java/br/com/bonaldo/backendchallenge/gateways/http/OrderGatewayAPI.java

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+package br.com.bonaldo.backendchallenge.gateways.http;
+
+import br.com.bonaldo.backendchallenge.gateways.OrderGateway;
+import br.com.bonaldo.backendchallenge.gateways.http.json.OrderItemResponse;
+import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestTemplate;
+
+import java.util.List;
+
+@Component
+@RequiredArgsConstructor
+public class OrderGatewayAPI implements OrderGateway {
+
+    @Value("${integration.order-api.url}")
+    private String API_URL;
+
+    private final RestTemplate restTemplate;
+
+    @Override
+    public List<OrderItemResponse> getOrderItems() {
+        ResponseEntity<List<OrderItemResponse>> response = restTemplate
+                .exchange(API_URL, HttpMethod.GET, null, new ParameterizedTypeReference<List<OrderItemResponse>>() {});
+        return response.getBody();
+    }
+}

backend-challenge/src/main/java/br/com/bonaldo/backendchallenge/gateways/http/json/DimensionResponse.java

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+package br.com.bonaldo.backendchallenge.gateways.http.json;
+
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+
+@Data
+@NoArgsConstructor
+public class DimensionResponse implements Serializable {
+    private BigDecimal weight;
+    private BigDecimal height;
+    private BigDecimal width;
+    private BigDecimal length;
+}

backend-challenge/src/main/java/br/com/bonaldo/backendchallenge/gateways/http/json/OrderItemResponse.java

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+package br.com.bonaldo.backendchallenge.gateways.http.json;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class OrderItemResponse implements Serializable {
+    private String name;
+    private String code;
+    private LocalDateTime date;
+    private DimensionResponse dimension;
+}