001 /*
002 * Copyright (C) 2012 eXo Platform SAS.
003 *
004 * This is free software; you can redistribute it and/or modify it
005 * under the terms of the GNU Lesser General Public License as
006 * published by the Free Software Foundation; either version 2.1 of
007 * the License, or (at your option) any later version.
008 *
009 * This software is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * You should have received a copy of the GNU Lesser General Public
015 * License along with this software; if not, write to the Free
016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
018 */
019
020 package org.crsh.telnet;
021
022 import org.crsh.plugin.*;
023 import org.crsh.telnet.term.TelnetLifeCycle;
024 import org.crsh.vfs.Resource;
025
026 import java.io.IOException;
027 import java.net.URL;
028 import java.util.Collections;
029 import java.util.logging.Level;
030
031 public class TelnetPlugin extends CRaSHPlugin<TelnetPlugin> {
032
033 /** . */
034 public static final PropertyDescriptor<Integer> TELNET_PORT = PropertyDescriptor.create("telnet.port", 5000, "The telnet port");
035
036 /** . */
037 private TelnetLifeCycle lifeCycle;
038
039 @Override
040 public TelnetPlugin getImplementation() {
041 return this;
042 }
043
044 @Override
045 protected Iterable<PropertyDescriptor<?>> createConfigurationCapabilities() {
046 return Collections.<PropertyDescriptor<?>>singletonList(TELNET_PORT);
047 }
048
049 @Override
050 public void init() {
051 PluginContext context = getContext();
052
053 //
054 Resource config = null;
055
056 //
057 URL configURL = TelnetPlugin.class.getResource("/crash/telnet.properties");
058 if (configURL != null) {
059 try {
060 log.log(Level.FINE, "Found embedded telnet config url " + configURL);
061 config = new Resource(configURL);
062 }
063 catch (IOException e) {
064 log.log(Level.FINE, "Could not load embedded telnet config url " + configURL + " will bypass it", e);
065 }
066 }
067
068 // Override from config if any
069 Resource res = getContext().loadResource("telnet.properties", ResourceKind.CONFIG);
070 if (res != null) {
071 config = res;
072 log.log(Level.FINE, "Found telnet config url " + configURL);
073 }
074
075 //
076 if (configURL == null) {
077 log.log(Level.INFO, "Could not boot Telnet due to missing config");
078 return;
079 }
080
081 //
082 TelnetLifeCycle lifeCycle = new TelnetLifeCycle(context);
083 lifeCycle.setConfig(config);
084 Integer port = context.getProperty(TELNET_PORT);
085 if (port != null) {
086 lifeCycle.setPort(port);
087 }
088
089 //
090 lifeCycle.init();
091
092 //
093 this.lifeCycle = lifeCycle;
094 }
095
096 @Override
097 public void destroy() {
098 if (lifeCycle != null) {
099 lifeCycle.destroy();
100 }
101 }
102 }