diff options
Diffstat (limited to 'sca-java-1.x/tags/1.6.1/modules/osgi-runtime/src/main/java/org/apache/tuscany/sca/osgi/runtime/EquinoxRuntime.java')
-rw-r--r-- | sca-java-1.x/tags/1.6.1/modules/osgi-runtime/src/main/java/org/apache/tuscany/sca/osgi/runtime/EquinoxRuntime.java | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6.1/modules/osgi-runtime/src/main/java/org/apache/tuscany/sca/osgi/runtime/EquinoxRuntime.java b/sca-java-1.x/tags/1.6.1/modules/osgi-runtime/src/main/java/org/apache/tuscany/sca/osgi/runtime/EquinoxRuntime.java new file mode 100644 index 0000000000..43101b14c9 --- /dev/null +++ b/sca-java-1.x/tags/1.6.1/modules/osgi-runtime/src/main/java/org/apache/tuscany/sca/osgi/runtime/EquinoxRuntime.java @@ -0,0 +1,117 @@ +/* + * 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.osgi.runtime; + +import java.lang.reflect.Field; +import java.lang.reflect.Method; + +import org.osgi.framework.BundleContext; + +/** + * Implementation of an OSGi Runtime using Equinox. + * + * @version $Rev$ $Date$ + */ +public class EquinoxRuntime extends OSGiRuntime { + + + private static BundleContext bundleContext; + + private static EquinoxRuntime instance; + + private static Class<?> eclipseStarterClass; + + public static OSGiRuntime getInstance() throws Exception { + if (instance == null) { + eclipseStarterClass = EquinoxRuntime.class.getClassLoader().loadClass("org.eclipse.core.runtime.adaptor.EclipseStarter"); + EquinoxRuntime runtime = new EquinoxRuntime(); + instance = runtime; + } + return instance; + } + + @Override + protected BundleContext startRuntime(boolean tuscanyRunningInOSGiContainer) throws Exception { + + if (bundleContext != null) + return bundleContext; + + Method startupMethod = eclipseStarterClass.getMethod("startup", String [].class, Runnable.class); + + // Equinox version 3.2 upwards have a startup method which returns BundleContext + if (startupMethod.getReturnType() == BundleContext.class) { + bundleContext = (BundleContext) startupMethod.invoke(null, new String[] {"-clean", "-console"}, null ); + } + else { + + // Older versions of Equinox don't have a public method to obtain system bundlecontext + // Extract bundleContext from the private field 'context'. We are assuming that + // there is no access restriction + Method mainMethod = eclipseStarterClass.getMethod("main", String [].class); + mainMethod.invoke(null, (Object)new String[] {"-clean", "-console"}); + + Field contextField = eclipseStarterClass.getDeclaredField("context"); + contextField.setAccessible(true); + bundleContext = (BundleContext) contextField.get(null); + + } + + + return bundleContext; + + } + + @Override + public BundleContext getBundleContext() { + return bundleContext; + } + + @Override + protected void setBundleContext(BundleContext bundleContext) { + super.setBundleContext(bundleContext); + EquinoxRuntime.bundleContext = bundleContext; + } + + @Override + public void shutdown() throws Exception { + + if (bundleContext == null) + return; + bundleContext = null; + instance = null; + if (eclipseStarterClass != null) { + Method shutdownMethod = eclipseStarterClass.getMethod("shutdown"); + try { + shutdownMethod.invoke(eclipseStarterClass); + } catch (Exception e) { + // Ignore errors. + } + } + super.shutdown(); + } + + + @Override + public boolean supportsBundleFragments() { + return false; + } + + + +} |