Merge pull request #12474 from amitiw4u/BAEL-5297_ExceptionHandling
Bael 5297 exception handling
This commit is contained in:
commit
e17700100f
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@ -52,6 +52,7 @@
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<module>spring-cloud-bus</module>
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<module>spring-cloud-bus</module>
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<module>spring-cloud-data-flow</module>
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<module>spring-cloud-data-flow</module>
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<module>spring-cloud-sleuth</module>
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<module>spring-cloud-sleuth</module>
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<module>spring-cloud-openfeign-2</module>
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</modules>
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</modules>
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<build>
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<build>
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### Relevant Articles:
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung.cloud</groupId>
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<artifactId>spring-cloud-openfeign-2</artifactId>
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<name>spring-cloud-openfeign-2</name>
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<description>OpenFeign project for Spring Boot</description>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>parent-boot-2</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<relativePath>../../parent-boot-2</relativePath>
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</parent>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-dependencies</artifactId>
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<version>${spring-cloud.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-openfeign</artifactId>
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</dependency>
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<dependency>
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<groupId>io.github.openfeign</groupId>
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<artifactId>feign-okhttp</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>io.github.openfeign.form</groupId>
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<artifactId>feign-form</artifactId>
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<version>${feign-form.version}</version>
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</dependency>
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<dependency>
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<groupId>io.github.openfeign.form</groupId>
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<artifactId>feign-form-spring</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<properties>
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<spring-cloud.version>2021.0.0</spring-cloud.version>
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<feign-form.version>3.8.0</feign-form.version>
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</properties>
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</project>
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package com.baeldung.cloud.openfeign;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cloud.openfeign.EnableFeignClients;
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@SpringBootApplication
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@EnableFeignClients
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public class ExampleApplication {
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public static void main(String[] args) {
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SpringApplication.run(ExampleApplication.class, args);
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}
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}
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package com.baeldung.cloud.openfeign.exception;
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public class BadRequestException extends Exception {
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public BadRequestException() {
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}
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public BadRequestException(String message) {
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super(message);
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}
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public BadRequestException(Throwable cause) {
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super(cause);
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}
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@Override
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public String toString() {
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return "BadRequestException: " + getMessage();
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}
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}
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package com.baeldung.cloud.openfeign.exception;
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public class NotFoundException extends Exception {
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public NotFoundException(String message) {
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super(message);
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}
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public NotFoundException(Throwable cause) {
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super(cause);
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}
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@Override
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public String toString() {
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return "NotFoundException: " + getMessage();
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}
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}
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package com.baeldung.cloud.openfeign.fileupload.config;
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public class ExceptionMessage {
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private String timestamp;
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private int status;
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private String error;
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private String message;
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private String path;
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public String getTimestamp() {
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return timestamp;
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}
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public void setTimestamp(String timestamp) {
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this.timestamp = timestamp;
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}
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public int getStatus() {
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return status;
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}
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public void setStatus(int status) {
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this.status = status;
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}
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public String getError() {
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return error;
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}
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public void setError(String error) {
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this.error = error;
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}
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public String getMessage() {
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return message;
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}
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public void setMessage(String message) {
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this.message = message;
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}
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public String getPath() {
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return path;
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}
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public void setPath(String path) {
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this.path = path;
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}
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@Override
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public String toString() {
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return "ExceptionMessage [timestamp=" + timestamp + ", status=" + status + ", error=" + error + ", message=" + message + ", path=" + path + "]";
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}
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}
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package com.baeldung.cloud.openfeign.fileupload.config;
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import org.springframework.beans.factory.ObjectFactory;
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import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
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import org.springframework.cloud.openfeign.support.SpringEncoder;
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import org.springframework.context.annotation.Bean;
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import org.springframework.web.client.RestTemplate;
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import feign.codec.Encoder;
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import feign.codec.ErrorDecoder;
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import feign.form.spring.SpringFormEncoder;
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public class FeignSupportConfig {
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@Bean
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public Encoder multipartFormEncoder() {
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return new SpringFormEncoder(new SpringEncoder(new ObjectFactory<HttpMessageConverters>() {
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@Override
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public HttpMessageConverters getObject() {
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return new HttpMessageConverters(new RestTemplate().getMessageConverters());
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}
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}));
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}
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@Bean
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public ErrorDecoder errorDecoder() {
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return new RetreiveMessageErrorDecoder();
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}
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}
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package com.baeldung.cloud.openfeign.fileupload.config;
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import java.io.IOException;
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import java.io.InputStream;
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import com.baeldung.cloud.openfeign.exception.BadRequestException;
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import com.baeldung.cloud.openfeign.exception.NotFoundException;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import feign.Response;
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import feign.codec.ErrorDecoder;
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public class RetreiveMessageErrorDecoder implements ErrorDecoder {
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private final ErrorDecoder errorDecoder = new Default();
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@Override
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public Exception decode(String methodKey, Response response) {
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ExceptionMessage message = null;
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try (InputStream bodyIs = response.body()
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.asInputStream()) {
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ObjectMapper mapper = new ObjectMapper();
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message = mapper.readValue(bodyIs, ExceptionMessage.class);
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} catch (IOException e) {
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return new Exception(e.getMessage());
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}
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switch (response.status()) {
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case 400:
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return new BadRequestException(message.getMessage() != null ? message.getMessage() : "Bad Request");
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case 404:
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return new NotFoundException(message.getMessage() != null ? message.getMessage() : "Not found");
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default:
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return errorDecoder.decode(methodKey, response);
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}
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}
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}
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package com.baeldung.cloud.openfeign.fileupload.service;
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import org.springframework.cloud.openfeign.FallbackFactory;
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import org.springframework.stereotype.Component;
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import org.springframework.web.multipart.MultipartFile;
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import com.baeldung.cloud.openfeign.exception.BadRequestException;
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import com.baeldung.cloud.openfeign.exception.NotFoundException;
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@Component
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public class FileUploadClientFallbackFactory implements FallbackFactory<FileUploadClientWithFallbackFactory> {
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@Override
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public FileUploadClientWithFallbackFactory create(Throwable cause) {
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return new FileUploadClientWithFallbackFactory() {
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@Override
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public String fileUpload(MultipartFile file) {
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if (cause instanceof BadRequestException) {
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return "Bad Request!!!";
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}
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if (cause instanceof NotFoundException) {
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return "Not Found!!!";
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}
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if (cause instanceof Exception) {
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return "Exception!!!";
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}
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return "Successfully Uploaded file!!!";
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}
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};
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}
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}
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package com.baeldung.cloud.openfeign.fileupload.service;
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import org.springframework.cloud.openfeign.FeignClient;
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import org.springframework.http.MediaType;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestPart;
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import org.springframework.web.multipart.MultipartFile;
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import com.baeldung.cloud.openfeign.fileupload.config.FeignSupportConfig;
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@FeignClient(name = "file", url = "http://localhost:8081", configuration = FeignSupportConfig.class, fallback = FileUploadClientWithFallbackImpl.class)
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public interface FileUploadClientWithFallBack {
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@PostMapping(value = "/upload-error", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
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String fileUpload(@RequestPart(value = "file") MultipartFile file);
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}
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@ -0,0 +1,15 @@
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package com.baeldung.cloud.openfeign.fileupload.service;
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import org.springframework.cloud.openfeign.FeignClient;
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import org.springframework.http.MediaType;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestPart;
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import org.springframework.web.multipart.MultipartFile;
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import com.baeldung.cloud.openfeign.fileupload.config.FeignSupportConfig;
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@FeignClient(name = "file", url = "http://localhost:8081", configuration = FeignSupportConfig.class, fallbackFactory = FileUploadClientFallbackFactory.class)
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public interface FileUploadClientWithFallbackFactory {
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@PostMapping(value = "/upload-error", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
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String fileUpload(@RequestPart(value = "file") MultipartFile file);
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}
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@ -0,0 +1,31 @@
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package com.baeldung.cloud.openfeign.fileupload.service;
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|
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|
import org.springframework.stereotype.Component;
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|
import org.springframework.web.multipart.MultipartFile;
|
||||||
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|
||||||
|
import com.baeldung.cloud.openfeign.exception.BadRequestException;
|
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|
import com.baeldung.cloud.openfeign.exception.NotFoundException;
|
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|
||||||
|
@Component
|
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|
public class FileUploadClientWithFallbackImpl implements FileUploadClientWithFallBack {
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public String fileUpload(MultipartFile file) {
|
||||||
|
try {
|
||||||
|
throw new NotFoundException("hi, something wrong");
|
||||||
|
} catch (Exception ex) {
|
||||||
|
|
||||||
|
if (ex instanceof BadRequestException) {
|
||||||
|
return "Bad Request!!!";
|
||||||
|
}
|
||||||
|
if (ex instanceof NotFoundException) {
|
||||||
|
return "Not Found!!!";
|
||||||
|
}
|
||||||
|
if (ex instanceof Exception) {
|
||||||
|
return "Exception!!!";
|
||||||
|
}
|
||||||
|
return "Successfully Uploaded file!!!";
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
|
@ -0,0 +1,16 @@
|
||||||
|
package com.baeldung.cloud.openfeign.fileupload.service;
|
||||||
|
|
||||||
|
import org.springframework.web.multipart.MultipartFile;
|
||||||
|
|
||||||
|
import feign.Headers;
|
||||||
|
import feign.Param;
|
||||||
|
import feign.RequestLine;
|
||||||
|
import feign.Response;
|
||||||
|
|
||||||
|
public interface UploadResource {
|
||||||
|
|
||||||
|
@RequestLine("POST /upload-error")
|
||||||
|
@Headers("Content-Type: multipart/form-data")
|
||||||
|
Response uploadFile(@Param("file") MultipartFile file);
|
||||||
|
|
||||||
|
}
|
|
@ -0,0 +1,34 @@
|
||||||
|
package com.baeldung.cloud.openfeign.fileupload.service;
|
||||||
|
|
||||||
|
import org.springframework.beans.factory.annotation.Autowired;
|
||||||
|
import org.springframework.stereotype.Service;
|
||||||
|
import org.springframework.web.multipart.MultipartFile;
|
||||||
|
|
||||||
|
import feign.Feign;
|
||||||
|
import feign.Response;
|
||||||
|
import feign.form.spring.SpringFormEncoder;
|
||||||
|
|
||||||
|
@Service
|
||||||
|
public class UploadService {
|
||||||
|
private static final String HTTP_FILE_UPLOAD_URL = "http://localhost:8081";
|
||||||
|
|
||||||
|
@Autowired
|
||||||
|
private FileUploadClientWithFallbackFactory fileUploadClient;
|
||||||
|
@Autowired
|
||||||
|
private FileUploadClientWithFallBack fileUploadClientWithFallback;
|
||||||
|
|
||||||
|
public boolean uploadFileWithManualClient(MultipartFile file) {
|
||||||
|
UploadResource fileUploadResource = Feign.builder().encoder(new SpringFormEncoder())
|
||||||
|
.target(UploadResource.class, HTTP_FILE_UPLOAD_URL);
|
||||||
|
Response response = fileUploadResource.uploadFile(file);
|
||||||
|
return response.status() == 200;
|
||||||
|
}
|
||||||
|
|
||||||
|
public String uploadFileWithFallbackFactory(MultipartFile file) {
|
||||||
|
return fileUploadClient.fileUpload(file);
|
||||||
|
}
|
||||||
|
|
||||||
|
public String uploadFileWithFallback(MultipartFile file) {
|
||||||
|
return fileUploadClientWithFallback.fileUpload(file);
|
||||||
|
}
|
||||||
|
}
|
|
@ -0,0 +1,10 @@
|
||||||
|
server.port=8085
|
||||||
|
spring.main.allow-bean-definition-overriding=true
|
||||||
|
spring.application.name= openfeign
|
||||||
|
logging.level.com.baeldung.cloud.openfeign.client: DEBUG
|
||||||
|
feign.hystrix.enabled=true
|
||||||
|
|
||||||
|
spring.security.oauth2.client.registration.keycloak.authorization-grant-type=client_credentials
|
||||||
|
spring.security.oauth2.client.registration.keycloak.client-id=payment-app
|
||||||
|
spring.security.oauth2.client.registration.keycloak.client-secret=863e9de4-33d4-4471-b35e-f8d2434385bb
|
||||||
|
spring.security.oauth2.client.provider.keycloak.token-uri=http://localhost:8083/auth/realms/master/protocol/openid-connect/token
|
|
@ -0,0 +1,61 @@
|
||||||
|
package com.baeldung.cloud.openfeign;
|
||||||
|
|
||||||
|
import java.io.File;
|
||||||
|
import java.io.FileInputStream;
|
||||||
|
import java.io.IOException;
|
||||||
|
|
||||||
|
import org.apache.commons.io.IOUtils;
|
||||||
|
import org.junit.Assert;
|
||||||
|
import org.junit.Test;
|
||||||
|
import org.junit.runner.RunWith;
|
||||||
|
import org.springframework.beans.factory.annotation.Autowired;
|
||||||
|
import org.springframework.boot.test.context.SpringBootTest;
|
||||||
|
import org.springframework.mock.web.MockMultipartFile;
|
||||||
|
import org.springframework.test.context.junit4.SpringRunner;
|
||||||
|
import org.springframework.web.multipart.MultipartFile;
|
||||||
|
|
||||||
|
import com.baeldung.cloud.openfeign.exception.NotFoundException;
|
||||||
|
import com.baeldung.cloud.openfeign.fileupload.service.UploadService;
|
||||||
|
|
||||||
|
@RunWith(SpringRunner.class)
|
||||||
|
@SpringBootTest
|
||||||
|
public class OpenFeignFileUploadLiveTest {
|
||||||
|
|
||||||
|
@Autowired
|
||||||
|
private UploadService uploadService;
|
||||||
|
|
||||||
|
private static String FILE_NAME = "fileupload.txt";
|
||||||
|
|
||||||
|
@Test(expected = NotFoundException.class)
|
||||||
|
public void whenFileUploadClientFallbackFactory_thenFileUploadError() throws IOException {
|
||||||
|
ClassLoader classloader = Thread.currentThread().getContextClassLoader();
|
||||||
|
File file = new File(classloader.getResource(FILE_NAME).getFile());
|
||||||
|
Assert.assertTrue(file.exists());
|
||||||
|
FileInputStream input = new FileInputStream(file);
|
||||||
|
MultipartFile multipartFile = new MockMultipartFile("file", file.getName(), "text/plain",
|
||||||
|
IOUtils.toByteArray(input));
|
||||||
|
uploadService.uploadFileWithFallbackFactory(multipartFile);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test(expected = NotFoundException.class)
|
||||||
|
public void whenFileUploadClientFallback_thenFileUploadError() throws IOException {
|
||||||
|
ClassLoader classloader = Thread.currentThread().getContextClassLoader();
|
||||||
|
File file = new File(classloader.getResource(FILE_NAME).getFile());
|
||||||
|
Assert.assertTrue(file.exists());
|
||||||
|
FileInputStream input = new FileInputStream(file);
|
||||||
|
MultipartFile multipartFile = new MockMultipartFile("file", file.getName(), "text/plain",
|
||||||
|
IOUtils.toByteArray(input));
|
||||||
|
uploadService.uploadFileWithFallback(multipartFile);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test(expected = NotFoundException.class)
|
||||||
|
public void whenFileUploadWithMannualClient_thenFileUploadError() throws IOException {
|
||||||
|
ClassLoader classloader = Thread.currentThread().getContextClassLoader();
|
||||||
|
File file = new File(classloader.getResource(FILE_NAME).getFile());
|
||||||
|
Assert.assertTrue(file.exists());
|
||||||
|
FileInputStream input = new FileInputStream(file);
|
||||||
|
MultipartFile multipartFile = new MockMultipartFile("file", file.getName(), "text/plain",
|
||||||
|
IOUtils.toByteArray(input));
|
||||||
|
uploadService.uploadFileWithManualClient(multipartFile);
|
||||||
|
}
|
||||||
|
}
|
|
@ -0,0 +1,16 @@
|
||||||
|
package com.baeldung.cloud.openfeign;
|
||||||
|
|
||||||
|
|
||||||
|
import org.junit.Test;
|
||||||
|
import org.junit.runner.RunWith;
|
||||||
|
import org.springframework.boot.test.context.SpringBootTest;
|
||||||
|
import org.springframework.test.context.junit4.SpringRunner;
|
||||||
|
|
||||||
|
@RunWith(SpringRunner.class)
|
||||||
|
@SpringBootTest(classes = ExampleApplication.class)
|
||||||
|
public class SpringContextTest {
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void whenSpringContextIsBootstrapped_thenNoExceptions() {
|
||||||
|
}
|
||||||
|
}
|
|
@ -13,7 +13,7 @@ public class CustomErrorDecoder implements ErrorDecoder {
|
||||||
case 400:
|
case 400:
|
||||||
return new BadRequestException();
|
return new BadRequestException();
|
||||||
case 404:
|
case 404:
|
||||||
return new NotFoundException();
|
return new NotFoundException("Not found !!!");
|
||||||
default:
|
default:
|
||||||
return new Exception("Generic error");
|
return new Exception("Generic error");
|
||||||
}
|
}
|
||||||
|
|
|
@ -2,9 +2,6 @@ package com.baeldung.cloud.openfeign.exception;
|
||||||
|
|
||||||
public class NotFoundException extends Exception {
|
public class NotFoundException extends Exception {
|
||||||
|
|
||||||
public NotFoundException() {
|
|
||||||
}
|
|
||||||
|
|
||||||
public NotFoundException(String message) {
|
public NotFoundException(String message) {
|
||||||
super(message);
|
super(message);
|
||||||
}
|
}
|
||||||
|
@ -15,7 +12,7 @@ public class NotFoundException extends Exception {
|
||||||
|
|
||||||
@Override
|
@Override
|
||||||
public String toString() {
|
public String toString() {
|
||||||
return "NotFoundException: "+getMessage();
|
return "NotFoundException: " + getMessage();
|
||||||
}
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
|
@ -14,7 +14,7 @@ public class UploadService {
|
||||||
|
|
||||||
@Autowired
|
@Autowired
|
||||||
private UploadClient client;
|
private UploadClient client;
|
||||||
|
|
||||||
public boolean uploadFileWithManualClient(MultipartFile file) {
|
public boolean uploadFileWithManualClient(MultipartFile file) {
|
||||||
UploadResource fileUploadResource = Feign.builder().encoder(new SpringFormEncoder())
|
UploadResource fileUploadResource = Feign.builder().encoder(new SpringFormEncoder())
|
||||||
.target(UploadResource.class, HTTP_FILE_UPLOAD_URL);
|
.target(UploadResource.class, HTTP_FILE_UPLOAD_URL);
|
||||||
|
@ -29,5 +29,4 @@ public class UploadService {
|
||||||
public String uploadFileError(MultipartFile file) {
|
public String uploadFileError(MultipartFile file) {
|
||||||
return client.fileUpload(file);
|
return client.fileUpload(file);
|
||||||
}
|
}
|
||||||
|
|
||||||
}
|
}
|
Loading…
Reference in New Issue