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 */ 019package org.crsh.lang.groovy; 020 021import org.crsh.cli.impl.completion.CompletionMatch; 022import org.crsh.plugin.CRaSHPlugin; 023import org.crsh.repl.EvalResponse; 024import org.crsh.repl.Repl; 025import org.crsh.repl.ReplSession; 026 027import java.util.logging.Logger; 028 029/** 030 * @author Julien Viet 031 */ 032public class GroovyRepl extends CRaSHPlugin<Repl> implements Repl { 033 034 /** . */ 035 static final Logger log = Logger.getLogger(GroovyRepl.class.getName()); 036 037 /** . */ 038 private static final Repl groovyRepl = getREPL(); 039 040 public static Repl getREPL() { 041 try { 042 Class<Repl> groovyReplClass = (Class<Repl>)GroovyRepl.class.getClassLoader().loadClass("org.crsh.lang.groovy.GroovyReplImpl"); 043 return groovyReplClass.newInstance(); 044 } 045 catch (Exception e) { 046 log.info("Plugin is inactive"); 047 return null; 048 } 049 catch (NoClassDefFoundError e) { 050 log.info("Plugin is inactive"); 051 return null; 052 } 053 } 054 055 @Override 056 public Repl getImplementation() { 057 return this; 058 } 059 060 @Override 061 public boolean isActive() { 062 return groovyRepl != null; 063 } 064 065 @Override 066 public String getName() { 067 return "groovy"; 068 } 069 070 @Override 071 public String getDescription() { 072 return "The Groovy REPL provides a Groovy interpreter able to interact with shell commands"; 073 } 074 075 @Override 076 public EvalResponse eval(ReplSession session, String request) { 077 if (groovyRepl != null) { 078 return groovyRepl.eval(session, request); 079 } else { 080 throw new IllegalStateException("Groovy REPL is not available"); 081 } 082 } 083 084 @Override 085 public CompletionMatch complete(ReplSession session, String prefix) { 086 if (groovyRepl != null) { 087 return groovyRepl.complete(session, prefix); 088 } else { 089 throw new IllegalStateException("Groovy REPL is not available"); 090 } 091 } 092}