/*
* 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.config.command.completers;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.apache.karaf.config.core.impl.MetaServiceCaller;
import org.apache.karaf.config.core.impl.MetatypeCallable;
import org.apache.karaf.shell.api.action.lifecycle.Init;
import org.apache.karaf.shell.api.action.lifecycle.Reference;
import org.apache.karaf.shell.api.action.lifecycle.Service;
import org.apache.karaf.shell.api.console.CommandLine;
import org.apache.karaf.shell.api.console.Completer;
import org.apache.karaf.shell.api.console.Session;
import org.apache.karaf.shell.support.completers.StringsCompleter;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleEvent;
import org.osgi.framework.BundleListener;
import org.osgi.service.metatype.MetaTypeInformation;
import org.osgi.service.metatype.MetaTypeService;
@Service
public class MetaCompleter implements Completer, BundleListener {
private final StringsCompleter delegate = new StringsCompleter();
@Reference
BundleContext context;
@Init
public void init() {
context.registerService(BundleListener.class, this, null);
updateMeta();
}
@Override
public synchronized int complete(final Session session, final CommandLine commandLine, final List<String> candidates) {
return delegate.complete(session, commandLine, candidates);
}
@Override
public void bundleChanged(BundleEvent event) {
updateMeta();
}
private synchronized void updateMeta() {
List<String> pids = MetaServiceCaller.withMetaTypeService(context, new MetatypeCallable<List<String>>() {
@Override
public List<String> callWith(MetaTypeService metatypeService) {
List<String> pids = new ArrayList<String>();
Bundle[] bundles = context.getBundles();
for (Bundle bundle : bundles) {
MetaTypeInformation info = metatypeService.getMetaTypeInformation(bundle);
if (info == null) {
continue;
}
if (info.getFactoryPids() != null) {
pids.addAll(Arrays.asList(info.getFactoryPids()));
}
if (info.getPids() != null) {
pids.addAll(Arrays.asList(info.getPids()));
}
}
return pids;
}
});
if (pids != null) {
delegate.getStrings().clear();
delegate.getStrings().addAll(pids);
}
}
}