1 files changed, 126 insertions, 0 deletions
diff --git a/plugins/org.eclipse.objectteams.osgi.weaving/src/org/eclipse/objectteams/osgi/weaving/Activator.java b/plugins/org.eclipse.objectteams.osgi.weaving/src/org/eclipse/objectteams/osgi/weaving/Activator.java
new file mode 100644
index 000000000..ac7605fa4
--- /dev/null
+++ b/plugins/org.eclipse.objectteams.osgi.weaving/src/org/eclipse/objectteams/osgi/weaving/Activator.java
@@ -0,0 +1,126 @@
+package org.eclipse.objectteams.osgi.weaving;
+
+import static org.eclipse.objectteams.osgi.weaving.Constants.TRANSFORMER_PLUGIN_ID;
+
+import java.util.Hashtable;
+
+import org.eclipse.core.runtime.ILog;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.objectteams.internal.osgi.weaving.AspectBindingRegistry;
+import org.eclipse.objectteams.internal.osgi.weaving.OTWeavingHook;
+import org.eclipse.objectteams.otequinox.hook.ILogger;
+import org.eclipse.objectteams.otre.ClassLoaderAccess;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceReference;
+import org.osgi.framework.ServiceRegistration;
+import org.osgi.framework.hooks.weaving.WeavingHook;
+
+public class Activator implements BundleActivator {
+
+	private static BundleContext context;
+
+	static BundleContext getContext() {
+		return context;
+	}
+
+	private ServiceRegistration<WeavingHook> serviceRegistration;
+	private AspectBindingRegistry aspectBindingRegistry;
+
+	@SuppressWarnings("deprecation")
+	private org.osgi.service.packageadmin.PackageAdmin packageAdmin;
+
+	private static ILog log;
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
+	 */
+	public void start(BundleContext bundleContext) throws Exception {
+		Activator.context = bundleContext;
+		
+		frameworkInit(bundleContext);
+
+		this.aspectBindingRegistry = new AspectBindingRegistry();
+		this.aspectBindingRegistry.loadAspectBindings(this.packageAdmin);
+
+		OTWeavingHook otWeavingHook = new OTWeavingHook(this.aspectBindingRegistry);
+		this.serviceRegistration = context.registerService(WeavingHook.class, otWeavingHook, new Hashtable<String, Object>());
+		
+		OTREInit();
+	}
+
+	@SuppressWarnings({ "restriction", "deprecation" })
+	private void frameworkInit(BundleContext bundleContext) {
+		try {
+			Activator.log = org.eclipse.core.internal.runtime.InternalPlatform.getDefault().getLog(bundleContext.getBundle());
+		} catch (NullPointerException npe) {
+			// WTF?
+		}
+		
+		ServiceReference<?> ref= context.getServiceReference(org.osgi.service.packageadmin.PackageAdmin.class.getName());
+		if (ref!=null)
+			this.packageAdmin = (org.osgi.service.packageadmin.PackageAdmin)context.getService(ref);
+		else
+			log(ILogger.ERROR, "Failed to load PackageAdmin service. Will not be able to handle fragments.");
+	}
+
+	private void OTREInit() {
+		try {
+			ClassLoaderAccess.setLoadClass(Bundle.class.getMethod("loadClass", String.class));
+			ClassLoaderAccess.setGetResource(Bundle.class.getMethod("getResource", String.class));
+		} catch (NoSuchMethodException | SecurityException e) {
+			log(e, "Failed to wire an OSGi class into the OTRE");
+		}
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
+	 */
+	public void stop(BundleContext bundleContext) throws Exception {
+		Activator.context = null;
+		this.serviceRegistration.unregister();
+	}
+
+	// configure OT/Equinox debugging:
+	public static int WARN_LEVEL = ILogger.ERROR;
+	static {
+		String level = System.getProperty("otequinox.debug");
+		if (level != null) {
+			level = level.toUpperCase();
+			if (level.equals("OK"))
+				WARN_LEVEL = ILogger.OK;
+			else if (level.equals("INFO"))
+				WARN_LEVEL = ILogger.INFO;
+			else if (level.startsWith("WARN"))
+				WARN_LEVEL = ILogger.WARNING;
+			else if (level.startsWith("ERR"))
+				WARN_LEVEL = ILogger.ERROR;
+			else
+				WARN_LEVEL = ILogger.OK;
+		}
+	}
+
+	public static void log (Throwable ex, String msg) {
+		msg = "OT/Equinox: "+msg;
+		System.err.println(msg);
+		ex.printStackTrace();
+		log.log(new Status(IStatus.ERROR, TRANSFORMER_PLUGIN_ID, msg, ex));
+	}
+	
+	public static void log(int status, String msg) {
+		if (status >= WARN_LEVEL)
+			doLog(status, msg);
+	}
+
+	private static void doLog(int status, String msg) {
+		msg = "OT/Equinox: "+msg;
+		if (log != null)
+			log.log(new Status(status, TRANSFORMER_PLUGIN_ID, msg));
+		else
+			System.err.println(msg);
+	}
+}