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Add example feign core project

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add system client api


Signed-off-by: SirWayne <dennis.melzer@bosch-si.com>
This commit is contained in:
SirWayne
2016-04-26 16:19:37 +02:00
parent 8addb05f09
commit c2649b4b54
24 changed files with 294 additions and 343 deletions
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47
examples/hawkbit-example-feign-core-client/pom.xml Normal file
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<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.eclipse.hawkbit</groupId>
<artifactId>hawkbit-examples-parent</artifactId>
<version>0.2.0-SNAPSHOT</version>
</parent>
<artifactId>hawkbit-example-feign-core-client</artifactId>
<name>hawkbit-example-feign-core-client</name>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-netflix</artifactId>
<version>1.0.7.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.netflix.feign</groupId>
<artifactId>feign-core</artifactId>
<!-- need to overwrite for the interface inheritance feature of feign-core -->
<!-- <version>8.16.0</version> -->
<version>8.14.2</version>
</dependency>
<dependency>
<groupId>com.netflix.feign</groupId>
<artifactId>feign-jackson</artifactId>
<version>8.14.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-feign</artifactId>
</dependency>
</dependencies>
</project>

28
examples/hawkbit-example-feign-core-client/src/main/java/org/eclipse/hawkbit/feign/core/client/ApplicationJsonRequestHeaderInterceptor.java Normal file
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/**
* Copyright (c) 2015 Bosch Software Innovations GmbH and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.eclipse.hawkbit.feign.core.client;
import org.springframework.http.MediaType;
import feign.RequestInterceptor;
import feign.RequestTemplate;
/**
* An feign request interceptor to set the defined {@code Accept} and
* {@code Content-Type} headers for each request to {@code application/json}.
*/
public class ApplicationJsonRequestHeaderInterceptor implements RequestInterceptor {
@Override
public void apply(final RequestTemplate template) {
template.header("Accept", MediaType.APPLICATION_JSON_VALUE);
template.header("Content-Type", MediaType.APPLICATION_JSON_VALUE);
}
}

32
examples/hawkbit-example-feign-core-client/src/main/java/org/eclipse/hawkbit/feign/core/client/FeignClientConfiguration.java Normal file
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/**
* Copyright (c) 2015 Bosch Software Innovations GmbH and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.eclipse.hawkbit.feign.core.client;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import feign.Contract;
/**
*
*
*/
@Configuration
public class FeignClientConfiguration {
@Bean
public ApplicationJsonRequestHeaderInterceptor jsonHeaderInterceptor() {
return new ApplicationJsonRequestHeaderInterceptor();
}
@Bean
public Contract feignContract() {
return new IgnoreMultipleConsumersProducersSpringMvcContract();
}
}

43
examples/hawkbit-example-feign-core-client/src/main/java/org/eclipse/hawkbit/feign/core/client/IgnoreMultipleConsumersProducersSpringMvcContract.java Normal file
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/**
* Copyright (c) 2015 Bosch Software Innovations GmbH and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.eclipse.hawkbit.feign.core.client;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.netflix.feign.support.SpringMvcContract;
import feign.MethodMetadata;
/**
* Own implementation of the {@link SpringMvcContract} which catches the
* {@link IllegalStateException} which occurs due multiple produces and consumes
* values in the request-mapping
* annoation.https://github.com/spring-cloud/spring-cloud-netflix/issues/808
*/
public class IgnoreMultipleConsumersProducersSpringMvcContract extends SpringMvcContract {
private static final Logger LOGGER = LoggerFactory
.getLogger(IgnoreMultipleConsumersProducersSpringMvcContract.class);
@Override
protected void processAnnotationOnMethod(final MethodMetadata data, final Annotation methodAnnotation,
final Method method) {
try {
super.processAnnotationOnMethod(data, methodAnnotation, method);
} catch (final IllegalStateException e) {
// ignore illegalstateexception here because it's thrown because of
// multiple consumers and produces, see
// https://github.com/spring-cloud/spring-cloud-netflix/issues/808
LOGGER.trace(e.getMessage(), e);
}
}
}