/*
* 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.karaf.diagnostic.common;
import java.io.OutputStreamWriter;
import org.apache.karaf.features.BundleInfo;
import org.apache.karaf.features.Feature;
import org.apache.karaf.features.FeaturesService;
import org.apache.karaf.features.Repository;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
/**
* Dump provider which add file named features.txt with informations
* about installed features and repositories.
*/
public class FeaturesDumpProvider extends TextDumpProvider {
/**
* Feature service.
*/
private final BundleContext bundleContext;
/**
* Creates new dump entry witch contains information about
* karaf features.
*/
public FeaturesDumpProvider(BundleContext bundleContext) {
super("features.txt");
this.bundleContext = bundleContext;
}
/**
* {@inheritDoc}
*/
protected void writeDump(OutputStreamWriter outputStreamWriter) throws Exception {
ServiceReference ref = bundleContext.getServiceReference(FeaturesService.class.getName());
if (ref == null) {
return;
}
FeaturesService features = (FeaturesService) bundleContext.getService(ref);
try {
// creates header
outputStreamWriter.write("Repositories:\n");
// list repositories
for (Repository repo : features.listRepositories()) {
outputStreamWriter.write(repo.getURI() + " (" + repo.getName() + ")\n");
}
// list features
outputStreamWriter.write("\nfeatures:\n");
for (Feature feature : features.listFeatures()) {
outputStreamWriter.write(feature.getName() + " " + feature.getVersion());
outputStreamWriter.write(" installed: " + features.isInstalled(feature));
outputStreamWriter.write("\nBundles:\n");
for (BundleInfo bundle : feature.getBundles()) {
outputStreamWriter.write("\t" + bundle.getLocation());
if (bundle.getStartLevel() != 0) {
outputStreamWriter.write(" start level " + bundle.getStartLevel());
}
outputStreamWriter.write("\n\n");
}
}
// flush & close stream
outputStreamWriter.close();
} finally {
bundleContext.ungetService(ref);
}
}
}