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
020package org.crsh.command;
021
022import org.crsh.shell.impl.command.spi.CommandException;
023import org.crsh.shell.impl.command.spi.CommandInvoker;
024
025import java.io.IOException;
026import java.util.logging.Logger;
027
028public abstract class BaseCommand extends AbstractCommand {
029
030  /** Need to find a way to make not that public. */
031  public final Logger log = Logger.getLogger(getClass().getName());
032
033  /** The unmatched text, only valid during an invocation - Need to find a way to make not that public. */
034  public String unmatched;
035
036  protected BaseCommand() {
037    this.unmatched = null;
038  }
039
040  protected final String readLine(String msg) throws IOException, InterruptedException {
041    return readLine(msg, true);
042  }
043
044  protected final String readLine(String msg, boolean echo) throws IOException, InterruptedException {
045    if (context instanceof InvocationContext) {
046      return ((InvocationContext)context).readLine(msg, echo);
047    } else {
048      throw new IllegalStateException("Cannot invoke read line without an invocation context");
049    }
050  }
051
052  public final String getUnmatched() {
053    return unmatched;
054  }
055
056
057  public final void execute(String s) throws IOException, CommandException {
058    InvocationContext<?> context = peekContext();
059    CommandInvoker invoker = context.resolve(s);
060    invoker.open(context);
061    invoker.flush();
062    invoker.close();
063  }
064}