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/*
* 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.URL;
import java.util.List;
import java.util.jar.Attributes;
import java.util.jar.JarInputStream;
import java.util.jar.Manifest;
import org.apache.tuscany.sca.contribution.Artifact;
import org.apache.tuscany.sca.contribution.Contribution;
import org.apache.tuscany.sca.contribution.osgi.BundleReference;
import org.apache.tuscany.sca.osgi.runtime.OSGiRuntime;
/**
* OSGi bundle processor
*
* @version $Rev$ $Date$
*/
public class OSGiBundleProcessor {
private boolean initializedOSGi;
private OSGiRuntime osgiRuntime;
public OSGiBundleProcessor() {
}
public Object installContributionBundle(Contribution contribution) {
JarInputStream jar = null;
Object bundle = null;
try {
URL contribURL = new URL(contribution.getLocation());
jar = new JarInputStream(contribURL.openStream());
Manifest manifest = jar.getManifest();
if (manifest != null && manifest.getMainAttributes()
.containsKey(new Attributes.Name("Bundle-SymbolicName"))) {
initialize();
if (osgiRuntime != null)
bundle = osgiRuntime.installBundle(contribURL.toString(), null);
}
} catch (Exception e) {
// If OSGi cannot process the jar, treat the bundle as a plain jar file.
} finally {
try {
if (jar != null)
jar.close();
} catch (IOException e) {
}
}
return bundle;
}
public BundleReference installNestedBundle(Contribution contribution,
String bundleSymbolicName,
String bundleVersion) {
BundleReference bundleReference = null;
initialize();
if (osgiRuntime == null)
return null;
List<Artifact> artifacts = contribution.getArtifacts();
for (Artifact a : artifacts) {
if (a.getURI().endsWith(".jar")) {
InputStream stream;
JarInputStream jar = null;
Object name;
Object version;
try {
URL artifactURL = new URL(a.getLocation());
stream = artifactURL.openStream();
jar = new JarInputStream(artifactURL.openStream());
Manifest manifest = jar.getManifest();
name = manifest.getMainAttributes().get(new Attributes.Name("Bundle-SymbolicName"));
version = manifest.getMainAttributes().get(new Attributes.Name("Bundle-Version"));
if (bundleSymbolicName.equals(name) && (bundleVersion == null || version == null || bundleVersion
.equals(version))) {
Object bundle = osgiRuntime.installBundle(a.getLocation(), stream);
bundleReference = new BundleReference(bundle, bundleSymbolicName, bundleVersion, a.getURI());
break;
}
} catch (Exception e) {
// If OSGi cannot process the jar, treat the bundle as a plain jar file.
} finally {
try {
if (jar != null)
jar.close();
} catch (IOException e) {
}
}
}
}
return bundleReference;
}
private void initialize() {
try {
if (!initializedOSGi) {
initializedOSGi = true;
osgiRuntime = OSGiRuntime.getRuntime();
}
} catch (Exception e) {
}
}
}
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