/*
* Copyright (C) 2012 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.crsh.lang.impl.groovy.closure;
import org.crsh.shell.impl.command.spi.CommandException;
import org.crsh.shell.impl.command.spi.CommandInvoker;
import org.crsh.command.InvocationContext;
import org.crsh.shell.impl.command.pipeline.PipeLine;
import java.io.IOException;
import java.util.Arrays;
import java.util.LinkedList;
/** @author Julien Viet */
public class PipeLineInvoker {
/** . */
private final PipeLineClosure closure;
/** . */
private final Object[] args;
public PipeLineInvoker(PipeLineClosure closure, Object[] args) {
this.closure = closure;
this.args = args;
}
public void invoke(InvocationContext<Object> context) throws IOException, CommandException {
//
PipeLineInvocationContext inner = new PipeLineInvocationContext(context);
LinkedList<CommandInvoker> pipe = closure.resolve2(args);
CommandInvoker[] array = pipe.toArray(new CommandInvoker[pipe.size()]);
PipeLine pipeLine = new PipeLine(array);
//
try {
pipeLine.open(inner);
pipeLine.flush();
} finally {
// This is on purpose
pipeLine.close();
}
}
@Override
public String toString() {
return "PipeLineInvoker[" + closure + "](" + Arrays.toString(args) + ")";
}
}