| /* |
| * 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.shell.config.completers; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Dictionary; |
| import java.util.Enumeration; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| import org.apache.felix.service.command.CommandSession; |
| import org.apache.karaf.shell.config.ConfigCommandSupport; |
| import org.apache.karaf.shell.console.Completer; |
| import org.apache.karaf.shell.console.completer.ArgumentCompleter; |
| import org.apache.karaf.shell.console.completer.StringsCompleter; |
| import org.apache.karaf.shell.console.jline.CommandSessionHolder; |
| import org.osgi.framework.InvalidSyntaxException; |
| import org.osgi.service.cm.Configuration; |
| import org.osgi.service.cm.ConfigurationAdmin; |
| |
| /** |
| * {@link jline.Completor} for Configuration Admin properties. |
| * |
| * Displays a list of existing properties based on the current configuration being edited. |
| * |
| */ |
| public class ConfigurationPropertyCompleter implements Completer { |
| |
| private final StringsCompleter delegate = new StringsCompleter(); |
| |
| private static final String OPTION = "-p"; |
| private static final String ALIAS = "--pid"; |
| |
| private ConfigurationAdmin configAdmin; |
| |
| public int complete(final String buffer, final int cursor, final List candidates) { |
| CommandSession session = CommandSessionHolder.getSession(); |
| if (session != null) { |
| String pid = getPid(session); |
| Set<String> propertyNames = getPropertyNames(pid); |
| delegate.getStrings().clear(); |
| if (propertyNames != null && !propertyNames.isEmpty()) { |
| delegate.getStrings().addAll(propertyNames); |
| } |
| } |
| return delegate.complete(buffer,cursor,candidates); |
| } |
| |
| /** |
| * Retrieves the pid stored in the {@link CommandSession} or passed as an argument. |
| * Argument takes precedence from pid stored in the {@link CommandSession}. |
| * @param commandSession |
| * @return |
| */ |
| private String getPid(CommandSession commandSession) { |
| String pid = (String) commandSession.get(ConfigCommandSupport.PROPERTY_CONFIG_PID); |
| ArgumentCompleter.ArgumentList list = (ArgumentCompleter.ArgumentList) commandSession.get(ArgumentCompleter.ARGUMENTS_LIST); |
| if (list != null && list.getArguments() != null && list.getArguments().length > 0) { |
| List<String> arguments = Arrays.asList(list.getArguments()); |
| if (arguments.contains(OPTION)) { |
| int index = arguments.indexOf(OPTION); |
| if (arguments.size() > index) { |
| return arguments.get(index + 1); |
| } |
| } |
| |
| if (arguments.contains(ALIAS)) { |
| int index = arguments.indexOf(ALIAS); |
| if (arguments.size() > index) { |
| return arguments.get(index + 1); |
| } |
| } |
| } |
| return pid; |
| } |
| |
| /** |
| * Returns the property names for the given pid. |
| * @param pid |
| * @return |
| */ |
| private Set<String> getPropertyNames(String pid) { |
| Set<String> propertyNames = new HashSet<String>(); |
| if (pid != null) { |
| Configuration configuration = null; |
| try { |
| Configuration[] configs = configAdmin.listConfigurations("(service.pid="+pid+")"); |
| if (configs != null && configs.length > 0) { |
| configuration = configs[0]; |
| if (configuration != null) { |
| Dictionary properties = configuration.getProperties(); |
| if (properties != null) { |
| Enumeration keys = properties.keys(); |
| while (keys.hasMoreElements()) { |
| propertyNames.add(String.valueOf(keys.nextElement())); |
| } |
| } |
| } |
| } |
| } catch (IOException e) { |
| //Ignore |
| } catch (InvalidSyntaxException e) { |
| //Ignore |
| } |
| } |
| return propertyNames; |
| } |
| |
| public ConfigurationAdmin getConfigAdmin() { |
| return configAdmin; |
| } |
| |
| public void setConfigAdmin(ConfigurationAdmin configAdmin) { |
| this.configAdmin = configAdmin; |
| } |
| } |