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 }