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 package org.crsh.lang.spi; 020 021 import org.crsh.shell.impl.command.ShellSession; 022 import org.crsh.shell.impl.command.spi.CommandException; 023 024 import java.util.Set; 025 026 /** 027 * 028 * 029 * @author Julien Viet 030 */ 031 public interface Compiler { 032 033 /** 034 * Returns the set of extensions managed by this implementation. 035 * 036 * @return the set of extensions, for instance ("groovy") 037 */ 038 Set<String> getExtensions(); 039 040 /** 041 * Compile a command.. 042 * 043 * @param name the command name 044 * @param source the command source @return the command or null if no command can be resolved 045 * @throws org.crsh.shell.impl.command.spi.CommandException when the command exists but cannot be created 046 * @throws NullPointerException if the command name is null 047 */ 048 CommandResolution compileCommand(String name, byte[] source) throws CommandException, NullPointerException; 049 050 // 051 String doCallBack(ShellSession session, String name, String defaultValue); 052 053 }