| /* |
| * 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.felix.dm.samples.annotation; |
| |
| import java.io.PrintStream; |
| import java.util.concurrent.CopyOnWriteArrayList; |
| |
| import org.apache.felix.dm.annotation.api.Service; |
| import org.apache.felix.dm.annotation.api.ServiceDependency; |
| import org.apache.felix.dm.annotation.api.Start; |
| import org.apache.felix.dm.annotation.api.Stop; |
| import org.apache.felix.shell.Command; |
| import org.osgi.service.log.LogService; |
| |
| /** |
| * Felix "spellcheck" Shell Command, used to check correct word spelling. |
| */ |
| @Service |
| public class SpellChecker implements Command |
| { |
| /** |
| * We'll use the OSGi log service for logging. If no log service is available, then we'll use a NullObject. |
| */ |
| @ServiceDependency(required = false) |
| private LogService m_log; |
| |
| /** |
| * We'll store all Dictionaries is a CopyOnWrite list, in order to avoid method synchronization. |
| */ |
| private CopyOnWriteArrayList<DictionaryService> m_dictionaries = new CopyOnWriteArrayList<DictionaryService>(); |
| |
| /** |
| * Inject a dictionary into this service. |
| * @param serviceProperties the dictionary OSGi service properties |
| * @param dictionary the new dictionary |
| */ |
| @ServiceDependency(removed = "removeDictionary") |
| protected void addDictionary(DictionaryService dictionary) |
| { |
| m_dictionaries.add(dictionary); |
| } |
| |
| /** |
| * Lifecycle method callback, used to check if our service has been activated. |
| */ |
| @Start |
| protected void start() { |
| m_log.log(LogService.LOG_WARNING, "Spell Checker started"); |
| } |
| |
| /** |
| * Lifecycle method callback, used to check if our service has been activated. |
| */ |
| @Stop |
| protected void stop() { |
| m_log.log(LogService.LOG_WARNING, "Spell Checker stopped"); |
| } |
| |
| /** |
| * Remove a dictionary from our service. |
| * @param dictionary |
| */ |
| protected void removeDictionary(DictionaryService dictionary) |
| { |
| m_dictionaries.remove(dictionary); |
| } |
| |
| // --- Felix Shell Command interface --- |
| |
| public String getName() |
| { |
| return "spellcheck"; |
| } |
| |
| public String getUsage() |
| { |
| return "spellcheck word"; |
| } |
| |
| public String getShortDescription() |
| { |
| return "Spell checker application using DependencyManager annotations"; |
| } |
| |
| public void execute(String commandLine, PrintStream out, PrintStream err) |
| { |
| String[] tokens = commandLine.split(" "); |
| if (tokens == null || tokens.length < 2) |
| { |
| err.println("Invalid parameters: " + commandLine + ". Usage: " + getUsage()); |
| return; |
| } |
| String word = tokens[1]; |
| |
| m_log.log(LogService.LOG_DEBUG, "Checking spelling of word \"" + word |
| + "\" using the following dictionaries: " + m_dictionaries); |
| |
| for (DictionaryService dictionary : m_dictionaries) |
| { |
| if (dictionary.checkWord(tokens[1])) |
| { |
| out.println("word " + word + " is correct"); |
| return; |
| } |
| } |
| err.println("word " + word + " is incorrect"); |
| } |
| } |