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.shell.impl.command;
020
021import org.crsh.command.InvocationContext;
022
023/**
024 * @author Julien Viet
025 */
026public abstract class AbstractInvocationContext<P> implements InvocationContext<P> {
027
028  /**
029   * Implement the <code><<</code> operator for Groovy.
030   *
031   * @param o the object
032   * @return this invocation context
033   * @throws Exception any exception
034   */
035  public final AbstractInvocationContext<P> leftShift(Object o) throws Exception {
036    Class<P> consumedType = getConsumedType();
037    if (consumedType.isInstance(o)) {
038      P p = consumedType.cast(o);
039      provide(p);
040    }
041    return this;
042  }
043}