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Diffstat (limited to 'branches/sca-java-2.0-M4/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleActivator.java')
-rw-r--r-- | branches/sca-java-2.0-M4/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleActivator.java | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/branches/sca-java-2.0-M4/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleActivator.java b/branches/sca-java-2.0-M4/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleActivator.java new file mode 100644 index 0000000000..af13d2ee98 --- /dev/null +++ b/branches/sca-java-2.0-M4/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleActivator.java @@ -0,0 +1,152 @@ +/* + * 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.contribution.osgi.impl; + +import java.io.IOException; +import java.io.InputStream; +import java.net.MalformedURLException; +import java.net.URL; +import java.util.jar.JarInputStream; +import java.util.jar.Manifest; + +import org.osgi.framework.Bundle; +import org.osgi.framework.BundleActivator; +import org.osgi.framework.BundleContext; +import org.osgi.framework.BundleException; +import org.osgi.framework.Constants; + +/** + * The Bundle Activator that receives the BundleContext + */ +public class OSGiBundleActivator implements BundleActivator { + private static BundleContext bundleContext; + + public static BundleContext getBundleContext() { + return bundleContext; + } + + public void start(BundleContext context) throws Exception { + bundleContext = context; + } + + public void stop(BundleContext context) throws Exception { + bundleContext = null; + } + + public static Bundle findBundle(URL bundleURL) { + if (bundleContext == null) { + return null; + } + Bundle[] installedBundles = bundleContext.getBundles(); + for (Bundle bundle : installedBundles) { + URL root = bundle.getEntry("/"); + if (root != null && root.getHost() != null && root.getHost().equals(bundleURL.getHost())) { + return bundle; + } + } + return null; + } + + public static Bundle findBundle(String symbolicName, String version) { + if (bundleContext == null) { + return null; + } + Bundle[] bundles = bundleContext.getBundles(); + if (version == null) { + version = "0.0.0"; + } + for (Bundle b : bundles) { + String v = (String)b.getHeaders().get(Constants.BUNDLE_VERSION); + if (v == null) { + v = "0.0.0"; + } + if (b.getSymbolicName().equals(symbolicName) && (version.equals("0.0.0") || v.equals(version))) { + return b; + } + } + return null; + } + + public static Bundle installBundle(String location, InputStream is) throws BundleException { + getBundleContext(); + return bundleContext.installBundle(location, is); + } + + public static Bundle installBundle(String location) throws BundleException, IOException { + getBundleContext(); + + URL url = new URL(location); + Bundle bundle = null; + InputStream is = url.openStream(); + JarInputStream jar = new JarInputStream(is); + + Manifest manifest = jar.getManifest(); + jar.close(); + if (manifest != null) { + String symbolicName = manifest.getMainAttributes().getValue(Constants.BUNDLE_SYMBOLICNAME); + String version = manifest.getMainAttributes().getValue(Constants.BUNDLE_VERSION); + if (symbolicName != null) { + bundle = findBundle(symbolicName, version); + if (bundle != null) { + return bundle; + } + } else { + return null; + } + } else { + return null; + } + try { + is = url.openStream(); + bundle = bundleContext.installBundle(location, is); + } finally { + is.close(); + } + return bundle; + } + + public static Bundle findBundleByLocation(String bundleLocation) { + if (bundleContext != null) { + Bundle[] installedBundles = bundleContext.getBundles(); + for (Bundle bundle : installedBundles) { + if (bundle.getLocation().equals(bundleLocation)) + return bundle; + } + } + return null; + } + + public static Bundle findBundle(String bundleLocation) { + if (bundleContext != null) { + if (bundleLocation.startsWith("bundle:") || bundleLocation.startsWith("bundleresource:") + || bundleLocation.startsWith("bundleentry:")) { + try { + return findBundle(new URL(bundleLocation)); + } catch (MalformedURLException e) { + // ignore + } + } else { + return findBundleByLocation(bundleLocation); + } + } + return null; + } + +} |