BAEL 317: Setting up EJB

EJB Client and EJB Remote

ejb/ejb-client/pom.xml

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+<?xml version="1.0"?>
+<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/maven-v4_0_0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>com.baeldung.ejb</groupId>
+		<artifactId>ejb</artifactId>
+		<version>1.0-SNAPSHOT</version>
+	</parent>
+	<artifactId>ejb-client</artifactId>
+	<name>EJB3 Client Maven</name>
+	<description>EJB3 Client Maven</description>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.wildfly</groupId>
+			<artifactId>wildfly-ejb-client-bom</artifactId>
+			<type>pom</type>
+			<scope>import</scope>
+		</dependency>
+		<dependency>
+			<groupId>com.baeldung.ejb</groupId>
+			<artifactId>ejb-remote</artifactId>
+			<type>ejb</type>
+		</dependency>
+	</dependencies>
+
+</project>

ejb/ejb-client/src/main/java/com/baeldung/ejb/client/EJBClient.java

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+package com.baeldung.ejb.client;
+
+import java.util.Properties;
+
+import javax.naming.Context;
+import javax.naming.InitialContext;
+import javax.naming.NamingException;
+
+import com.baeldung.ejb.tutorial.HelloWorld;
+
+public class EJBClient {
+
+    public EJBClient() {
+    }
+
+    private Context context = null;
+
+    public String getEJBRemoteMessage() {
+        EJBClient main = new EJBClient();
+        try {
+            // 1. Obtaining Context
+            main.createInitialContext();
+            // 2. Generate JNDI Lookup name and caste
+            HelloWorld helloWorld = main.lookup();
+            return helloWorld.getHelloWorld();
+        } catch (NamingException e) {
+            e.printStackTrace();
+            return "";
+        } finally {
+            try {
+                main.closeContext();
+            } catch (NamingException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    public HelloWorld lookup() throws NamingException {
+
+        // The app name is the EAR name of the deployed EJB without .ear suffix.
+        // Since we haven't deployed the application as a .ear, the app name for
+        // us will be an empty string
+        final String appName = "";
+        final String moduleName = "remote";
+        final String distinctName = "";
+        final String beanName = "HelloWorld";
+        final String viewClassName = HelloWorld.class.getName();
+        final String toLookup = "ejb:" + appName + "/" + moduleName 
+                + "/" + distinctName + "/" + beanName + "!" + viewClassName;
+        return (HelloWorld) context.lookup(toLookup);
+    }
+
+    public void createInitialContext() throws NamingException {
+        Properties prop = new Properties();
+        prop.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
+        prop.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory");
+        prop.put(Context.PROVIDER_URL, "http-remoting://127.0.0.1:8080");
+        prop.put(Context.SECURITY_PRINCIPAL, "pritamtest");
+        prop.put(Context.SECURITY_CREDENTIALS, "iamtheki9g");
+        prop.put("jboss.naming.client.ejb.context", false);
+
+        context = new InitialContext(prop);
+    }
+
+    public void closeContext() throws NamingException {
+        if (context != null) {
+            context.close();
+        }
+    }
+
+}

ejb/ejb-client/src/main/resources/jboss-ejb-client.properties

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+remote.connections=default
+remote.connection.default.host=127.0.0.1
+remote.connection.default.port=8080
+remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOANONYMOUS=false
+remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOPLAINTEXT=false
+remote.connection.default.connect.options.org.xnio.Options.SASL_DISALLOWED_MECHANISMS=${host.auth:JBOSS-LOCAL-USER}
+remote.connection.default.username=pritamtest
+remote.connection.default.password=iamtheki9g

ejb/ejb-client/src/test/java/com/baeldung/ejb/setup/test/EJBSetupTest.java

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+package com.baeldung.ejb.setup.test;
+
+import static org.junit.Assert.*;
+import org.junit.Test;
+import com.baeldung.ejb.client.EJBClient;
+import com.baeldung.ejb.tutorial.HelloWorldBean;
+
+public class EJBSetupTest {
+
+    @Test
+    public void testEJBClient() {
+        EJBClient ejbClient = new EJBClient();
+        HelloWorldBean bean = new HelloWorldBean();
+        assertEquals(bean.getHelloWorld(), ejbClient.getEJBRemoteMessage());
+    }
+}

ejb/ejb-remote/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<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>com.baeldung.ejb</groupId>
+		<artifactId>ejb</artifactId>
+		<version>1.0-SNAPSHOT</version>
+	</parent>
+	<artifactId>ejb-remote</artifactId>
+	<packaging>ejb</packaging>
+
+	<name>ejb-remote</name>
+	<dependencies>
+		<dependency>
+			<groupId>org.jboss.spec.javax.ejb</groupId>
+			<artifactId>jboss-ejb-api_3.2_spec</artifactId>
+			<scope>provided</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<finalName>ejb-remote</finalName>
+	</build>
+</project>

ejb/ejb-remote/src/main/java/com/baeldung/ejb/tutorial/HelloWorld.java

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+package com.baeldung.ejb.tutorial;
+
+import javax.ejb.Remote;
+
+@Remote
+public interface HelloWorld {
+    String getHelloWorld();
+}

ejb/ejb-remote/src/main/java/com/baeldung/ejb/tutorial/HelloWorldBean.java

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+package com.baeldung.ejb.tutorial;
+
+import javax.annotation.Resource;
+import javax.ejb.SessionContext;
+import javax.ejb.Stateless;
+
+@Stateless(name = "HelloWorld")
+public class HelloWorldBean implements HelloWorld {
+
+    @Resource
+    private SessionContext context;
+
+    @Override
+    public String getHelloWorld() {
+        return "Welcome to EJB Tutorial!";
+    }
+
+}

ejb/ejb-remote/src/main/resources/META-INF/ejb-jar.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<ejb-jar xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/ejb-jar_3_2.xsd"
+	version="3.2">
+	<module-name>remote</module-name>
+</ejb-jar>
+

ejb/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<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>
+	<groupId>com.baeldung.ejb</groupId>
+	<artifactId>ejb</artifactId>
+	<version>1.0-SNAPSHOT</version>
+	<packaging>pom</packaging>
+	<name>ejb</name>
+	<description>EJB Tutorial</description>
+
+	<repositories>
+		<repository>
+			<id>jboss-public-repository-group</id>
+			<name>JBoss Public Maven Repository Group</name>
+			<url>http://repository.jboss.org/nexus/content/groups/public/</url>
+			<layout>default</layout>
+			<releases>
+				<enabled>true</enabled>
+				<updatePolicy>never</updatePolicy>
+			</releases>
+			<snapshots>
+				<enabled>true</enabled>
+				<updatePolicy>never</updatePolicy>
+			</snapshots>
+		</repository>
+	</repositories>
+
+	<dependencyManagement>
+		<dependencies>
+			<dependency>
+				<groupId>com.baeldung.ejb</groupId>
+				<artifactId>ejb-remote</artifactId>
+				<version>1.0-SNAPSHOT</version>
+				<type>ejb</type>
+			</dependency>
+
+			<dependency>
+				<groupId>org.jboss.spec</groupId>
+				<artifactId>jboss-javaee-7.0</artifactId>
+				<version>1.0.1.Final</version>
+				<type>pom</type>
+				<scope>import</scope>
+			</dependency>
+
+			<dependency>
+				<groupId>org.wildfly</groupId>
+				<artifactId>wildfly-ejb-client-bom</artifactId>
+				<version>10.1.0.Final</version>
+				<type>pom</type>
+				<scope>import</scope>
+			</dependency>
+		</dependencies>
+	</dependencyManagement>
+
+	<build>
+		<pluginManagement>
+			<plugins>
+				<plugin>
+					<artifactId>maven-compiler-plugin</artifactId>
+					<version>3.1</version>
+					<configuration>
+						<source>1.7</source>
+						<target>1.7</target>
+					</configuration>
+				</plugin>
+
+				<plugin>
+					<artifactId>maven-ejb-plugin</artifactId>
+					<version>2.4</version>
+					<configuration>
+						<ejbVersion>3.2</ejbVersion>
+					</configuration>
+				</plugin>
+			</plugins>
+		</pluginManagement>
+	</build>
+
+	<modules>
+		<module>ejb-remote</module>
+		<module>ejb-client</module>
+	</modules>
+</project>