added a headless application to py4j/eclipse

net.sf.py4j.defaultserver/plugin.xml

@@ -21,5 +21,17 @@
             class="net.sf.py4j.defaultserver.preferences.PreferenceInitializer">
       </initializer>
    </extension>
+   <extension
+         id="py4jheadless"
+         point="org.eclipse.core.runtime.applications">
+      <application
+            cardinality="singleton-global"
+            thread="main"
+            visible="true">
+         <run
+               class="net.sf.py4j.defaultserver.HeadlessApplication">
+         </run>
+      </application>
+   </extension>
 
 </plugin>

net.sf.py4j.defaultserver/src/net/sf/py4j/defaultserver/HeadlessApplication.java

@@ -0,0 +1,78 @@
+package net.sf.py4j.defaultserver;
+
+import java.util.concurrent.CountDownLatch;
+
+import org.eclipse.equinox.app.IApplication;
+import org.eclipse.equinox.app.IApplicationContext;
+
+import py4j.GatewayServer;
+import py4j.GatewayServerListener;
+
+public class HeadlessApplication implements IApplication, GatewayServerListener {
+
+	private CountDownLatch latch;
+
+	@Override
+	public Object start(IApplicationContext context) throws Exception {
+		GatewayServer server = DefaultServerActivator.getDefault().getServer();
+		latch = new CountDownLatch(1);
+		server.addListener(this);
+		System.out.println("Py4J Headless Application Started.");
+		Object result = IApplication.EXIT_OK;
+		try {
+			latch.await();
+		} catch(Exception e) {
+			result = new Integer(1);
+		}
+		return result;
+	}
+
+	@Override
+	public void stop() {
+
+	}
+
+	@Override
+	public void serverStarted() {
+
+	}
+
+	@Override
+	public void serverStopped() {
+
+	}
+
+	@Override
+	public void serverError(Exception e) {
+
+	}
+
+	@Override
+	public void serverPreShutdown() {
+
+	}
+
+	@Override
+	public void serverPostShutdown() {
+		System.out.println("Py4J Headless Application Stopping.");
+		latch.countDown();
+	}
+
+	@Override
+	public void connectionStarted() {
+
+	}
+
+	@Override
+	public void connectionStopped() {
+
+	}
+
+	@Override
+	public void connectionError(Exception e) {
+
+	}
+
+
+
+}