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.shell.impl.remoting;
021
022 import org.crsh.shell.ShellProcess;
023 import org.crsh.shell.ShellProcessContext;
024
025 public class ServerProcess implements ShellProcess {
026
027 /** . */
028 final ServerAutomaton server;
029
030 /** . */
031 final String line;
032
033 /** . */
034 private int status;
035
036 ServerProcess(ServerAutomaton server, String line) {
037 this.server = server;
038 this.line = line;
039 this.status = 0;
040 }
041
042 public void execute(ShellProcessContext processContext) throws IllegalStateException {
043 if (status != 0) {
044 throw new IllegalStateException();
045 }
046 status = 1;
047 try {
048 server.execute(this, processContext);
049 }
050 finally {
051 status = 2;
052 }
053 }
054
055 public void cancel() {
056 switch (status) {
057 case 0:
058 throw new IllegalStateException();
059 case 1:
060 server.cancel(this);
061 break;
062 }
063 }
064 }