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Diffstat (limited to 'branches/sca-java-2.0-M4/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java')
-rw-r--r-- | branches/sca-java-2.0-M4/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/branches/sca-java-2.0-M4/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java b/branches/sca-java-2.0-M4/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java new file mode 100644 index 0000000000..5714df2a5d --- /dev/null +++ b/branches/sca-java-2.0-M4/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java @@ -0,0 +1,126 @@ +/* + * 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.tuscany.sca.node.equinox.launcher; + +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.util.Hashtable; +import java.util.Map; +import java.util.logging.Level; +import java.util.logging.Logger; + +import org.eclipse.osgi.framework.console.CommandProvider; +import org.osgi.framework.BundleActivator; +import org.osgi.framework.BundleContext; +import org.osgi.framework.launch.Framework; +import org.osgi.framework.launch.FrameworkFactory; + +/** + * Launcher for the OSGi framework using the framework launch APIs + */ +public class FrameworkLauncher implements BundleActivator { + private static final String FACTORY_RESOURCE = "META-INF/services/" + FrameworkFactory.class.getName(); + + private static final Logger logger = Logger.getLogger(FrameworkLauncher.class.getName()); + + private FrameworkFactory factory; + private boolean isEquinox; + + @SuppressWarnings("unchecked") + private synchronized FrameworkFactory loadFrameworkFactory() { + if (factory == null) { + try { + ClassLoader classLoader = FrameworkFactory.class.getClassLoader(); + InputStream is = classLoader.getResourceAsStream(FACTORY_RESOURCE); + if (is == null) { + classLoader = Thread.currentThread().getContextClassLoader(); + is = classLoader.getResourceAsStream(FACTORY_RESOURCE); + } + if (is == null) { + return null; + } + BufferedReader reader = null; + String line = null; + try { + reader = new BufferedReader(new InputStreamReader(is, "UTF-8")); + while (true) { + line = reader.readLine(); + if (line == null) + break; + line = line.trim(); + if (!line.startsWith("#") && !"".equals(line)) { + break; + } + } + } finally { + if (reader != null) { + try { + reader.close(); + } catch (IOException e) { + // Ignore + } + } + } + if (line != null) { + Class<? extends FrameworkFactory> factoryImplClass = + (Class<? extends FrameworkFactory>)Class.forName(line, false, classLoader); + factory = factoryImplClass.newInstance(); + if (factory != null && factory.getClass().getName().startsWith("org.eclipse.osgi.")) { + isEquinox = true; + } + + } + } catch (Throwable e) { + logger.log(Level.SEVERE, e.getMessage(), e); + } + } + return factory; + } + + public Framework newFramework(Map properties) { + FrameworkFactory factory = loadFrameworkFactory(); + if (factory == null) { + return null; + } + return factory.newFramework(properties); + } + + public boolean isEquinox() { + return isEquinox; + } + + public void start(BundleContext context) throws Exception { + EquinoxHost.injectedBundleContext = context; + if (context.getClass().getName().startsWith("org.eclipse.osgi.")) { + isEquinox = true; + try { + context.registerService(CommandProvider.class.getName(), new NodeLauncherCommand(), new Hashtable()); + } catch (NoClassDefFoundError e) { + // Ignore it + } + } + } + + public void stop(BundleContext context) throws Exception { + EquinoxHost.injectedBundleContext = null; + } +} |