Remove and Rename modules

Signed-off-by: SirWayne <dennis.melzer@bosch-si.com>

examples/hawkbit-example-core-feign-client/README.md

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+# Eclipse.IoT hawkBit - Example Feign Core Client 
+
+This modules contains core resources that are needed by the hawkBit Example DDI Client and the hawkBit Example Management Spring Client.
+
+# Compile
+
+#### Build hawkbit-example-feign-core-client
+
+```
+$ cd hawkbit/examples/hawkbit-example-feign-core-client
+$ mvn clean install
+```
+

examples/hawkbit-example-core-feign-client/pom.xml

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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
+
+-->
+<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-core-feign-client</artifactId>
+   <name>hawkBit-example :: Feign Core Client</name>
+
+   <dependencies>
+      <dependency>
+         <groupId>com.netflix.feign</groupId>
+         <artifactId>feign-core</artifactId>
+      </dependency>
+      <dependency>
+         <groupId>org.springframework</groupId>
+         <artifactId>spring-web</artifactId>
+      </dependency>
+      <dependency>
+         <groupId>org.springframework.cloud</groupId>
+         <artifactId>spring-cloud-netflix-core</artifactId>
+         <version>1.0.7.RELEASE</version>
+      </dependency>
+       <dependency>
+         <groupId>org.slf4j</groupId>
+         <artifactId>slf4j-api</artifactId>
+      </dependency>
+      <dependency>
+        <groupId>com.netflix.feign</groupId>
+        <artifactId>feign-slf4j</artifactId>
+      </dependency>
+   </dependencies>
+</project>

examples/hawkbit-example-core-feign-client/src/main/java/org/eclipse/hawkbit/feign/core/client/ApplicationJsonRequestHeaderInterceptor.java

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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);
+    }
+
+}

examples/hawkbit-example-core-feign-client/src/main/java/org/eclipse/hawkbit/feign/core/client/FeignClientConfiguration.java

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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.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.cloud.netflix.feign.FeignClientsConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
+import feign.Contract;
+import feign.Feign;
+
+/**
+ * 
+ *
+ */
+@Configuration
+@ConditionalOnClass(Feign.class)
+@Import(FeignClientsConfiguration.class)
+public class FeignClientConfiguration {
+
+    @Bean
+    public ApplicationJsonRequestHeaderInterceptor jsonHeaderInterceptor() {
+        return new ApplicationJsonRequestHeaderInterceptor();
+    }
+
+    @Bean
+    public Contract feignContract() {
+        return new IgnoreMultipleConsumersProducersSpringMvcContract();
+    }
+}

examples/hawkbit-example-core-feign-client/src/main/java/org/eclipse/hawkbit/feign/core/client/IgnoreMultipleConsumersProducersSpringMvcContract.java

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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);
+        }
+    }
+}