JAVA-17818 Split or move spring-cloud-openfeign module (conti-2) (#13485)

Co-authored-by: timis1 <[email protected]>

feign/README.md

@@ -7,3 +7,8 @@ This module contains articles about Feign
 - [Intro to Feign](https://www.baeldung.com/intro-to-feign)
 - [Retrying Feign Calls](https://www.baeldung.com/feign-retry)
 - [Setting Request Headers Using Feign](https://www.baeldung.com/java-feign-request-headers)
+- [File Upload With Open Feign](https://www.baeldung.com/java-feign-file-upload)
+- [Feign Logging Configuration](https://www.baeldung.com/java-feign-logging)
+- [Retrieve Original Message From Feign ErrorDecoder](https://www.baeldung.com/feign-retrieve-original-message)
+- [RequestLine with Feign Client](https://www.baeldung.com/feign-requestline)
+- [Propagating Exceptions With OpenFeign and Spring](https://www.baeldung.com/spring-openfeign-propagate-exception)

feign/pom.xml

@@ -64,6 +64,22 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>io.github.openfeign.form</groupId>
+            <artifactId>feign-form-spring</artifactId>
+            <version>${feign.form.spring.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-openfeign</artifactId>
+            <version>${spring.cloud.openfeign.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.github.tomakehurst</groupId>
+            <artifactId>wiremock-jre8</artifactId>
+            <version>${wire.mock.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>
@@ -118,6 +134,9 @@
     <properties>
         <feign.version>11.8</feign.version>
         <wsdl4j.version>1.6.3</wsdl4j.version>
+        <feign.form.spring.version>3.8.0</feign.form.spring.version>
+        <spring.cloud.openfeign.version>3.1.2</spring.cloud.openfeign.version>
+        <wire.mock.version>2.33.2</wire.mock.version>
     </properties>
 
 </project>

feign/src/main/java/com/baeldung/core/ExampleApplication.java

@@ -0,0 +1,16 @@
+package com.baeldung.core;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+
+@SpringBootApplication
+@EnableFeignClients
+public class ExampleApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(ExampleApplication.class, args);
+    }
+
+}
+

feign/src/main/java/com/baeldung/core/client/EmployeeClient.java

@@ -1,6 +1,7 @@
-package com.baeldung.cloud.openfeign.client;
+package com.baeldung.core.client;
+
+import com.baeldung.core.model.Employee;
 
-import com.baeldung.cloud.openfeign.model.Employee;
 import feign.Headers;
 import feign.Param;
 import feign.RequestLine;

feign/src/main/java/com/baeldung/core/client/UserClient.java

@@ -0,0 +1,13 @@
+package com.baeldung.core.client;
+
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+
+import com.baeldung.core.config.FeignConfig;
+
+@FeignClient(name = "user-client", url="https://jsonplaceholder.typicode.com", configuration = FeignConfig.class)
+public interface UserClient {
+
+	@GetMapping(value = "/users")
+	String getUsers();
+}

feign/src/main/java/com/baeldung/core/config/FeignConfig.java

@@ -1,7 +1,8 @@
-package com.baeldung.cloud.openfeign.config;
+package com.baeldung.core.config;
+
+import org.springframework.context.annotation.Bean;
 
 import feign.Logger;
-import org.springframework.context.annotation.Bean;
 
 public class FeignConfig {
 

feign/src/main/java/com/baeldung/core/controller/EmployeeController.java

@@ -1,13 +1,15 @@
-package com.baeldung.cloud.openfeign.controller;
+package com.baeldung.core.controller;
 
-import com.baeldung.cloud.openfeign.client.EmployeeClient;
-import com.baeldung.cloud.openfeign.model.Employee;
-import feign.Feign;
-import feign.form.spring.SpringFormEncoder;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
+import com.baeldung.core.client.EmployeeClient;
+import com.baeldung.core.model.Employee;
+
+import feign.Feign;
+import feign.form.spring.SpringFormEncoder;
+
 @RestController
 public class EmployeeController {
 

feign/src/main/java/com/baeldung/core/customizederrorhandling/client/ProductClient.java

@@ -1,13 +1,13 @@
-package com.baeldung.cloud.openfeign.customizederrorhandling.client;
-
-import com.baeldung.cloud.openfeign.customizederrorhandling.config.FeignConfig;
-import com.baeldung.cloud.openfeign.defaulterrorhandling.model.Product;
+package com.baeldung.core.customizederrorhandling.client;
 
 import org.springframework.cloud.openfeign.FeignClient;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 
+import com.baeldung.core.customizederrorhandling.config.FeignConfig;
+import com.baeldung.core.defaulterrorhandling.model.Product;
+
 @FeignClient(name = "product-client-2", url = "http://localhost:8081/product/", configuration = FeignConfig.class)
 public interface ProductClient {
 

feign/src/main/java/com/baeldung/core/customizederrorhandling/config/CustomErrorDecoder.java

@@ -1,8 +1,9 @@
-package com.baeldung.cloud.openfeign.customizederrorhandling.config;
+package com.baeldung.core.customizederrorhandling.config;
+
+import com.baeldung.core.customizederrorhandling.exception.ProductNotFoundException;
+import com.baeldung.core.customizederrorhandling.exception.ProductServiceNotAvailableException;
+import com.baeldung.core.exception.BadRequestException;
 
-import com.baeldung.cloud.openfeign.exception.BadRequestException;
-import com.baeldung.cloud.openfeign.customizederrorhandling.exception.ProductNotFoundException;
-import com.baeldung.cloud.openfeign.customizederrorhandling.exception.ProductServiceNotAvailableException;
 import feign.Response;
 import feign.codec.ErrorDecoder;
 

feign/src/main/java/com/baeldung/core/customizederrorhandling/config/FeignConfig.java

@@ -1,8 +1,9 @@
-package com.baeldung.cloud.openfeign.customizederrorhandling.config;
+package com.baeldung.core.customizederrorhandling.config;
+
+import org.springframework.context.annotation.Bean;
 
 import feign.Logger;
 import feign.codec.ErrorDecoder;
-import org.springframework.context.annotation.Bean;
 
 public class FeignConfig {
 

feign/src/main/java/com/baeldung/core/customizederrorhandling/controller/ProductController.java

@@ -1,12 +1,13 @@
-package com.baeldung.cloud.openfeign.customizederrorhandling.controller;
+package com.baeldung.core.customizederrorhandling.controller;
 
-import com.baeldung.cloud.openfeign.customizederrorhandling.client.ProductClient;
-
-
-import com.baeldung.cloud.openfeign.defaulterrorhandling.model.Product;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
 
+import com.baeldung.core.customizederrorhandling.client.ProductClient;
+import com.baeldung.core.defaulterrorhandling.model.Product;
 
 @RestController("product_controller2")
 @RequestMapping(value = "myapp2")

feign/src/main/java/com/baeldung/core/customizederrorhandling/exception/ErrorResponse.java

@@ -1,10 +1,11 @@
-package com.baeldung.cloud.openfeign.customizederrorhandling.exception;
+package com.baeldung.core.customizederrorhandling.exception;
+
+import java.util.Date;
+
+import org.springframework.http.HttpStatus;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import org.springframework.http.HttpStatus;
-
-import java.util.Date;
 
 public class ErrorResponse {
 

feign/src/main/java/com/baeldung/core/customizederrorhandling/exception/ProductExceptionHandler.java

@@ -1,6 +1,5 @@
-package com.baeldung.cloud.openfeign.customizederrorhandling.exception;
+package com.baeldung.core.customizederrorhandling.exception;
 
-import com.baeldung.cloud.openfeign.exception.BadRequestException;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ExceptionHandler;

feign/src/main/java/com/baeldung/core/customizederrorhandling/exception/ProductNotFoundException.java

@@ -1,4 +1,4 @@
-package com.baeldung.cloud.openfeign.customizederrorhandling.exception;
+package com.baeldung.core.customizederrorhandling.exception;
 
 public class ProductNotFoundException extends RuntimeException {
 

feign/src/main/java/com/baeldung/core/customizederrorhandling/exception/ProductServiceNotAvailableException.java

@@ -1,4 +1,4 @@
-package com.baeldung.cloud.openfeign.customizederrorhandling.exception;
+package com.baeldung.core.customizederrorhandling.exception;
 
 public class ProductServiceNotAvailableException extends RuntimeException {
 

feign/src/main/java/com/baeldung/core/defaulterrorhandling/client/ProductClient.java

@@ -1,13 +1,13 @@
-package com.baeldung.cloud.openfeign.defaulterrorhandling.client;
-
-import com.baeldung.cloud.openfeign.defaulterrorhandling.config.FeignConfig;
-import com.baeldung.cloud.openfeign.defaulterrorhandling.model.Product;
+package com.baeldung.core.defaulterrorhandling.client;
 
 import org.springframework.cloud.openfeign.FeignClient;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 
+import com.baeldung.core.defaulterrorhandling.config.FeignConfig;
+import com.baeldung.core.defaulterrorhandling.model.Product;
+
 @FeignClient(name = "product-client", url = "http://localhost:8084/product/", configuration = FeignConfig.class)
 public interface ProductClient {
 

feign/src/main/java/com/baeldung/core/defaulterrorhandling/config/FeignConfig.java

@@ -1,7 +1,8 @@
-package com.baeldung.cloud.openfeign.defaulterrorhandling.config;
+package com.baeldung.core.defaulterrorhandling.config;
+
+import org.springframework.context.annotation.Bean;
 
 import feign.Logger;
-import org.springframework.context.annotation.Bean;
 
 public class FeignConfig {
 

feign/src/main/java/com/baeldung/core/defaulterrorhandling/controller/ProductController.java

@@ -1,10 +1,13 @@
-package com.baeldung.cloud.openfeign.defaulterrorhandling.controller;
+package com.baeldung.core.defaulterrorhandling.controller;
 
-import com.baeldung.cloud.openfeign.defaulterrorhandling.client.ProductClient;
-
-import com.baeldung.cloud.openfeign.defaulterrorhandling.model.Product;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.baeldung.core.defaulterrorhandling.client.ProductClient;
+import com.baeldung.core.defaulterrorhandling.model.Product;
 
 @RestController("product_controller1")
 @RequestMapping(value ="myapp1")

feign/src/main/java/com/baeldung/core/defaulterrorhandling/model/Product.java

@@ -1,4 +1,4 @@
-package com.baeldung.cloud.openfeign.defaulterrorhandling.model;
+package com.baeldung.core.defaulterrorhandling.model;
 
 public class Product {
 

feign/src/main/java/com/baeldung/core/exception/BadRequestException.java

@@ -0,0 +1,21 @@
+package com.baeldung.core.exception;
+
+public class BadRequestException extends Exception {
+
+    public BadRequestException() {
+    }
+
+    public BadRequestException(String message) {
+        super(message);
+    }
+
+    public BadRequestException(Throwable cause) {
+        super(cause);
+    }
+
+    @Override
+    public String toString() {
+        return "BadRequestException: "+getMessage();
+    }
+
+}

feign/src/main/java/com/baeldung/core/exception/NotFoundException.java

@@ -0,0 +1,18 @@
+package com.baeldung.core.exception;
+
+public class NotFoundException extends Exception {
+
+    public NotFoundException(String message) {
+        super(message);
+    }
+
+    public NotFoundException(Throwable cause) {
+        super(cause);
+    }
+
+    @Override
+    public String toString() {
+        return "NotFoundException: " + getMessage();
+    }
+
+}

feign/src/main/java/com/baeldung/core/fileupload/config/ExceptionMessage.java

@@ -1,4 +1,4 @@
-package com.baeldung.cloud.openfeign.fileupload.config;
+package com.baeldung.core.fileupload.config;
 
 public class ExceptionMessage {
     private String timestamp;

feign/src/main/java/com/baeldung/core/fileupload/config/FeignSupportConfig.java

@@ -1,6 +1,5 @@
-package com.baeldung.cloud.openfeign.fileupload.config;
+package com.baeldung.core.fileupload.config;
 
-import org.springframework.beans.factory.ObjectFactory;
 import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
 import org.springframework.cloud.openfeign.support.SpringEncoder;
 import org.springframework.context.annotation.Bean;
@@ -13,12 +12,7 @@ import feign.form.spring.SpringFormEncoder;
 public class FeignSupportConfig {
     @Bean
     public Encoder multipartFormEncoder() {
-        return new SpringFormEncoder(new SpringEncoder(new ObjectFactory<HttpMessageConverters>() {
-            @Override
-            public HttpMessageConverters getObject() {
-                return new HttpMessageConverters(new RestTemplate().getMessageConverters());
-            }
-        }));
+        return new SpringFormEncoder(new SpringEncoder(() -> new HttpMessageConverters(new RestTemplate().getMessageConverters())));
     }
 
     @Bean

feign/src/main/java/com/baeldung/core/fileupload/config/RetreiveMessageErrorDecoder.java

@@ -1,10 +1,10 @@
-package com.baeldung.cloud.openfeign.fileupload.config;
+package com.baeldung.core.fileupload.config;
 
 import java.io.IOException;
 import java.io.InputStream;
 
-import com.baeldung.cloud.openfeign.exception.BadRequestException;
-import com.baeldung.cloud.openfeign.exception.NotFoundException;
+import com.baeldung.core.exception.BadRequestException;
+import com.baeldung.core.exception.NotFoundException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
 import feign.Response;
@@ -15,7 +15,7 @@ public class RetreiveMessageErrorDecoder implements ErrorDecoder {
 
     @Override
     public Exception decode(String methodKey, Response response) {
-        ExceptionMessage message = null;
+        ExceptionMessage message;
         try (InputStream bodyIs = response.body()
             .asInputStream()) {
             ObjectMapper mapper = new ObjectMapper();

feign/src/main/java/com/baeldung/core/fileupload/controller/FileController.java

@@ -1,4 +1,4 @@
-package com.baeldung.cloud.openfeign.fileupload.controller;
+package com.baeldung.core.fileupload.controller;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -6,7 +6,7 @@ import org.springframework.web.bind.annotation.RequestPart;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.multipart.MultipartFile;
 
-import com.baeldung.cloud.openfeign.fileupload.service.UploadService;
+import com.baeldung.core.fileupload.service.UploadService;
 
 @RestController
 public class FileController {

feign/src/main/java/com/baeldung/core/fileupload/service/UploadClient.java

@@ -1,4 +1,4 @@
-package com.baeldung.cloud.openfeign.fileupload.service;
+package com.baeldung.core.fileupload.service;
 
 import org.springframework.cloud.openfeign.FeignClient;
 import org.springframework.http.MediaType;
@@ -6,7 +6,7 @@ import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestPart;
 import org.springframework.web.multipart.MultipartFile;
 
-import com.baeldung.cloud.openfeign.fileupload.config.FeignSupportConfig;
+import com.baeldung.core.fileupload.config.FeignSupportConfig;
 
 @FeignClient(name = "file", url = "http://localhost:8081", configuration = FeignSupportConfig.class)
 public interface UploadClient {

feign/src/main/java/com/baeldung/core/fileupload/service/UploadResource.java

@@ -1,4 +1,4 @@
-package com.baeldung.cloud.openfeign.fileupload.service;
+package com.baeldung.core.fileupload.service;
 
 import org.springframework.web.multipart.MultipartFile;
 

feign/src/main/java/com/baeldung/core/fileupload/service/UploadService.java

@@ -1,4 +1,4 @@
-package com.baeldung.cloud.openfeign.fileupload.service;
+package com.baeldung.core.fileupload.service;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;

feign/src/main/java/com/baeldung/core/model/Employee.java

@@ -1,4 +1,4 @@
-package com.baeldung.cloud.openfeign.model;
+package com.baeldung.core.model;
 
 public class Employee {
 

feign/src/main/resources/application.properties

@@ -5,3 +5,5 @@ ws.port.type.name=UsersPort
 ws.target.namespace=http://www.baeldung.com/springbootsoap/feignclient
 ws.location.uri=http://localhost:${server.port}/ws/users/
 debug=false
+
+logging.level.com.baeldung.core=DEBUG