| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.uima.ep_launcher; |
| |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.core.runtime.Plugin; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.service.packageadmin.PackageAdmin; |
| |
| public class LauncherPlugin extends Plugin { |
| |
| |
| public static final String ID = "org.apache.uima.launcher"; |
| |
| private static LauncherPlugin plugin; |
| |
| private BundleContext bundleContext; |
| |
| public LauncherPlugin() { |
| plugin = this; |
| } |
| |
| @Override |
| public void start(BundleContext context) throws Exception { |
| super.start(context); |
| |
| bundleContext = context; |
| } |
| |
| @Override |
| public void stop(BundleContext context) throws Exception { |
| super.stop(context); |
| plugin = null; |
| } |
| |
| public Bundle[] getBundles(String bundleName, String version) { |
| |
| Bundle[] bundles = Platform.getBundles(bundleName, version); |
| if (bundles != null) |
| return bundles; |
| |
| // Accessing bundle which is not resolved |
| PackageAdmin admin = (PackageAdmin) bundleContext.getService( |
| bundleContext.getServiceReference(PackageAdmin.class.getName())); |
| bundles = admin.getBundles(bundleName, version); |
| if (bundles != null && bundles.length > 0) |
| return bundles; |
| |
| return null; |
| } |
| |
| public Bundle getBundle(String bundleName) { |
| Bundle[] bundles = getBundles(bundleName, null); |
| if (bundles != null && bundles.length > 0) |
| // return fist bundle, if multiple |
| return bundles[0]; |
| |
| return null; |
| } |
| |
| /** |
| * Returns the shared instance. |
| */ |
| public static LauncherPlugin getDefault() { |
| return plugin; |
| } |
| } |