Chapter 10 - Creating a headless application

This creates an extension based on the applications extension point that
prints out a message when invoked.

com.packtpub.e4.headless.application/.classpath

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

com.packtpub.e4.headless.application/.project

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>com.packtpub.e4.headless.application</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.pde.PluginNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

com.packtpub.e4.headless.application/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,7 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8

com.packtpub.e4.headless.application/META-INF/MANIFEST.MF

@@ -0,0 +1,9 @@
+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: Application
+Bundle-SymbolicName: com.packtpub.e4.headless.application;singleton:=true
+Bundle-Version: 1.0.0.qualifier
+Bundle-Vendor: PACKTPUB
+Require-Bundle: org.eclipse.core.runtime
+Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-ActivationPolicy: lazy

com.packtpub.e4.headless.application/build.properties

@@ -0,0 +1,5 @@
+source.. = src/
+output.. = bin/
+bin.includes = META-INF/,\
+               .,\
+               plugin.xml

com.packtpub.e4.headless.application/plugin.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?eclipse version="3.4"?>
+<plugin>
+   <extension
+         id="id"
+         point="org.eclipse.core.runtime.applications">
+      <application
+            cardinality="singleton-global"
+            thread="main"
+            visible="true">
+         <run
+               class="com.packtpub.e4.headless.application.Application">
+         </run>
+      </application>
+   </extension>
+
+</plugin>

com.packtpub.e4.headless.application/src/com/packtpub/e4/headless/application/Application.java

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2016, Alex Blewitt, Bandlem Ltd
+ * Copyright (c) 2016, Packt Publishing Ltd
+ *
+ * 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 com.packtpub.e4.headless.application;
+
+import org.eclipse.equinox.app.IApplication;
+import org.eclipse.equinox.app.IApplicationContext;
+
+public class Application implements IApplication {
+	public Object start(IApplicationContext context) throws Exception {
+		System.out.println("Headless Application");
+		return null;
+	}
+
+	public void stop() {
+	}
+}