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Add Hello Springboot and Backend
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‎.gitignore‎

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# Compiled class file
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*.class
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**/target/*
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#Hidden files
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.*
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# Log file
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*.log

‎backend/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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JBoss, Home of Professional Open Source
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Copyright 2013, Red Hat, Inc. and/or its affiliates, and individual
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contributors by the @authors tag. See the copyright.txt in the
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distribution for a full listing of individual contributors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<project xmlns="http://maven.apache.org/POM/4.0.0" 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/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.redhat.examples</groupId>
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<artifactId>backend</artifactId>
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<version>1.0</version>
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<packaging>war</packaging>
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<properties>
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<!-- Explicitly declaring the source encoding eliminates the following
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message: -->
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<!-- [WARNING] Using platform encoding (UTF-8 actually) to copy filtered
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resources, i.e. build is platform dependent! -->
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<!-- JBoss dependency versions -->
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<version.wildfly.maven.plugin>2.0.0.Final</version.wildfly.maven.plugin>
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<!-- Define the version of the JBoss BOMs we want to import to specify
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tested stacks. -->
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<version.jboss.bom>8.2.2.Final</version.jboss.bom>
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<!-- other plugin versions -->
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<version.compiler.plugin>3.1</version.compiler.plugin>
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<version.surefire.plugin>2.16</version.surefire.plugin>
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<version.war.plugin>2.5</version.war.plugin>
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<!-- maven-compiler-plugin -->
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<maven.compiler.target>1.8</maven.compiler.target>
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<maven.compiler.source>1.8</maven.compiler.source>
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<!-- Jackason Dependency -->
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<jackson-version>2.6.3</jackson-version>
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</properties>
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<dependencyManagement>
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<dependencies>
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<!-- JBoss distributes a complete set of Java EE 7 APIs including a Bill
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of Materials (BOM). A BOM specifies the versions of a "stack" (or a collection)
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of artifacts. We use this here so that we always get the correct versions
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of artifacts. Here we use the jboss-javaee-7.0-with-tools stack (you can
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read this as the JBoss stack of the Java EE 7 APIs, with some extras tools
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for your project, such as Arquillian for testing) and the jboss-javaee-7.0-with-hibernate
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stack you can read this as the JBoss stack of the Java EE 7 APIs, with extras
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from the Hibernate family of projects) -->
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<dependency>
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<groupId>org.wildfly.bom</groupId>
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<artifactId>jboss-javaee-7.0-with-tools</artifactId>
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<version>${version.jboss.bom}</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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<!-- First declare the APIs we depend on and need for compilation. All
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of them are provided by JBoss WildFly -->
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<!-- Import the CDI API, we use provided scope as the API is included in
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JBoss WildFly -->
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<dependency>
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<groupId>javax.enterprise</groupId>
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<artifactId>cdi-api</artifactId>
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<scope>provided</scope>
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</dependency>
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<!-- Import the CDI API, we use provided scope as the API is included in
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JBoss WildFly -->
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<dependency>
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<groupId>org.jboss.spec.javax.servlet</groupId>
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<artifactId>jboss-servlet-api_3.1_spec</artifactId>
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<scope>provided</scope>
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</dependency>
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<!-- Import the Common Annotations API (JSR-250), we use provided scope
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as the API is included in JBoss WildFly -->
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<dependency>
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<groupId>org.jboss.spec.javax.annotation</groupId>
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<artifactId>jboss-annotations-api_1.2_spec</artifactId>
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<scope>provided</scope>
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</dependency>
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<!-- Jackason dependency -->
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-databind</artifactId>
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<version>${jackson-version}</version>
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</dependency>
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</dependencies>
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<build>
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<!-- Maven will append the version to the finalName (which is the name
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given to the generated war, and hence the context root) -->
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<finalName>ROOT</finalName>
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<plugins>
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<plugin>
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<artifactId>maven-war-plugin</artifactId>
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<version>${version.war.plugin}</version>
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<configuration>
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<!-- Java EE 7 doesn't require web.xml, Maven needs to catch up! -->
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<failOnMissingWebXml>false</failOnMissingWebXml>
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</configuration>
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</plugin>
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<!-- The WildFly plugin deploys your war to a local WildFly container -->
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<!-- To use, run: mvn package wildfly:deploy -->
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<plugin>
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<groupId>org.wildfly.plugins</groupId>
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<artifactId>wildfly-maven-plugin</artifactId>
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<version>${version.wildfly.maven.plugin}</version>
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</plugin>
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</plugins>
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</build>
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<profiles>
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<profile>
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<!-- The default profile skips all tests, though you can tune it to run
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just unit tests based on a custom pattern -->
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<!-- Seperate profiles are provided for running all tests, including Arquillian
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tests that execute in the specified container -->
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<id>default</id>
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<activation>
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<activeByDefault>true</activeByDefault>
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</activation>
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<build>
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<plugins>
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<plugin>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>${version.surefire.plugin}</version>
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<configuration>
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<skip>true</skip>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</profile>
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</profiles>
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</project>

‎backend/src/main/java/com/redhat/examples/backend/BackendHttpServlet.java‎

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/**
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* <p/>
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* http://www.apache.org/licenses/LICENSE-2.0
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* <p/>
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.redhat.examples.backend;
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import com.fasterxml.jackson.databind.*;
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import javax.servlet.*;
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import javax.servlet.annotation.*;
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import javax.servlet.http.*;
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import java.io.*;
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import java.net.*;
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/**
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* Created by ceposta
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* <a href="http://christianposta.com/blog>http://christianposta.com/blog</a>.
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*/
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@WebServlet(urlPatterns = {"/api/backend"})
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public class BackendHttpServlet extends HttpServlet {
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@Override
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protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
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resp.setContentType("application/json");
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ObjectMapper mapper = new ObjectMapper();
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String greeting = req.getParameter("greeting");
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ResponseDTO response = new ResponseDTO();
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response.setGreeting(greeting + " from cluster Backend");
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response.setTime(System.currentTimeMillis());
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response.setIp(getIp());
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PrintWriter out = resp.getWriter();
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mapper.writerWithDefaultPrettyPrinter()
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.writeValue(out, response);
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}
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private String getIp() {
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String hostname = null;
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try {
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hostname = InetAddress.getLocalHost().getHostAddress();
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} catch (UnknownHostException e) {
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hostname = "unknown";
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}
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return hostname;
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}
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}

‎backend/src/main/java/com/redhat/examples/backend/ResponseDTO.java‎

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/**
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* <p/>
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* http://www.apache.org/licenses/LICENSE-2.0
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* <p/>
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.redhat.examples.backend;
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/**
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* Created by ceposta
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* <a href="http://christianposta.com/blog>http://christianposta.com/blog</a>.
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*/
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public class ResponseDTO {
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private String greeting;
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private long time;
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private String ip;
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public String getGreeting() {
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return greeting;
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}
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public void setGreeting(String greeting) {
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this.greeting = greeting;
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}
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public long getTime() {
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return time;
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}
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public void setTime(long time) {
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this.time = time;
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}
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public String getIp() {
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return ip;
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}
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public void setIp(String ip) {
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this.ip = ip;
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}
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}

‎backend/src/main/webapp/WEB-INF/beans.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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JBoss, Home of Professional Open Source
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Copyright 2013, Red Hat, Inc. and/or its affiliates, and individual
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contributors by the @authors tag. See the copyright.txt in the
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distribution for a full listing of individual contributors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<!-- Marker file indicating CDI should be enabled -->
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<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="
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http://xmlns.jcp.org/xml/ns/javaee
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http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd" bean-discovery-mode="all">
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</beans>

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