Package org.eclipse.ecf.internal.remoteservice.rest

Source Code of org.eclipse.ecf.internal.remoteservice.rest.Activator

/*******************************************************************************
* Copyright (c) 2009 EclipseSource and others. 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
*
* Contributors:
*   EclipseSource - initial API and implementation
*******************************************************************************/
package org.eclipse.ecf.internal.remoteservice.rest;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.SafeRunner;
import org.eclipse.ecf.core.ContainerTypeDescription;
import org.eclipse.ecf.core.identity.Namespace;
import org.eclipse.ecf.core.util.*;
import org.eclipse.ecf.remoteservice.rest.identity.RestNamespace;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.service.log.LogService;
import org.osgi.util.tracker.ServiceTracker;

/**
* The activator class controls the plug-in life cycle
*/
public class Activator implements BundleActivator {

  // The plug-in ID
  public static final String PLUGIN_ID = "org.eclipse.ecf.remoteservice.rest"; //$NON-NLS-1$

  // The shared instance
  private static Activator plugin;

  private BundleContext context;

  private ServiceTracker logServiceTracker = null;

  private LogService logService = null;

  /*
   * (non-Javadoc)
   *
   * @see
   * org.eclipse.core.runtime.Plugins#start(org.osgi.framework.BundleContext)
   */
  public void start(final BundleContext context1) throws Exception {
    plugin = this;
    this.context = context1;
    SafeRunner.run(new ExtensionRegistryRunnable(context1) {
      protected void runWithoutRegistry() throws Exception {
        context1.registerService(Namespace.class, new RestNamespace(), null);
        context1.registerService(ContainerTypeDescription.class, new ContainerTypeDescription("ecf.rest.client", new RestClientContainerInstantiator(), "Rest Client Container"), null); //$NON-NLS-1$ //$NON-NLS-2$
      }
    });
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * org.eclipse.core.runtime.Plugin#stop(org.osgi.framework.BundleContext)
   */
  public void stop(BundleContext context1) throws Exception {
    if (logServiceTracker != null) {
      logServiceTracker.close();
      logServiceTracker = null;
      logService = null;
    }
    plugin = null;
    this.context = null;
  }

  /**
   * Returns the shared instance
   *
   * @return the shared instance
   */
  public static synchronized Activator getDefault() {
    if (plugin == null) {
      plugin = new Activator();
    }
    return plugin;
  }

  public BundleContext getContext() {
    return context;
  }

  protected LogService getLogService() {
    if (logServiceTracker == null) {
      logServiceTracker = new ServiceTracker(this.context, LogService.class.getName(), null);
      logServiceTracker.open();
    }
    logService = (LogService) logServiceTracker.getService();
    if (logService == null)
      logService = new SystemLogService(PLUGIN_ID);
    return logService;
  }

  public void log(IStatus status) {
    if (logService == null)
      logService = getLogService();
    if (logService != null)
      logService.log(LogHelper.getLogCode(status), LogHelper.getLogMessage(status), status.getException());
  }

}
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