/*
* 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.Collection;
import java.util.List;
import org.apache.karaf.shell.api.action.lifecycle.Destroy;
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.BundleContext;
import org.osgi.framework.ServiceRegistration;
import org.osgi.service.cm.Configuration;
import org.osgi.service.cm.ConfigurationAdmin;
import org.osgi.service.cm.ConfigurationEvent;
import org.osgi.service.cm.ConfigurationListener;
/**
* {@link Completer} for Configuration Admin configurations.
*
* Displays a list of existing config instance configurations for completion.
*
*/
@Service
public class ConfigurationCompleter implements Completer, ConfigurationListener {
private final StringsCompleter delegate = new StringsCompleter();
@Reference
private ConfigurationAdmin admin;
@Reference
private BundleContext bundleContext;
private ServiceRegistration<ConfigurationListener> registration;
public void setAdmin(ConfigurationAdmin admin) {
this.admin = admin;
}
@Init
public void init() {
registration = bundleContext.registerService(ConfigurationListener.class, this, null);
Configuration[] configs;
try {
configs = admin.listConfigurations(null);
if (configs == null) {
return;
}
} catch (Exception e) {
return;
}
Collection<String> pids = new ArrayList<String>();
for (Configuration config : configs) {
pids.add(config.getPid());
}
delegate.getStrings().addAll(pids);
}
@Destroy
public void destroy() {
registration.unregister();
}
public int complete(final Session session, final CommandLine commandLine, final List<String> candidates) {
return delegate.complete(session, commandLine, candidates);
}
public void configurationEvent(ConfigurationEvent configurationEvent) {
String pid = configurationEvent.getPid();
if (configurationEvent.getType() == ConfigurationEvent.CM_DELETED) {
delegate.getStrings().remove(pid);
} else if (configurationEvent.getType() == ConfigurationEvent.CM_UPDATED) {
delegate.getStrings().add(pid);
}
}
}