org.crsh.command.pipeline.ConvertingPipe Maven / Gradle / Ivy
/*
* 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.command.pipeline;
import org.crsh.command.CommandContext;
import org.crsh.text.Chunk;
import java.io.IOException;
/** @author Julien Viet */
public class ConvertingPipe> extends AbstractPipe {
/** . */
private final Class consumedType;
/** . */
private final Class producedType;
public ConvertingPipe(Class consumedType, Class producedType, boolean piped) {
super(piped);
//
this.consumedType = consumedType;
this.producedType = producedType;
}
public Class getConsumedType() {
return consumedType;
}
public Class getProducedType() {
return producedType;
}
public void write(Chunk chunk) throws IOException {
if (producedType.equals(Void.class)) {
//
} else if (producedType.isAssignableFrom(Chunk.class)) {
P p = producedType.cast(chunk);
consumer.provide(p);
} else {
consumer.write(chunk);
}
}
public void provide(C element) throws IOException {
if (producedType.isInstance(element)) {
P p = producedType.cast(element);
consumer.provide(p);
} else {
// Discarded for now...
}
}
}