/*
* $Header: /home/cvs/jakarta-slide/projector/src/java/org/apache/slide/projector/processor/SimpleProcessor.java,v 1.3 2004/07/28 09:48:18 ib Exp $
* $Revision: 1.3 $
* $Date: 2004/07/28 09:48:18 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Slide", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* [Additional notices, if required by prior licensing conditions]
*
*/
package org.apache.slide.projector.processor;
import java.util.Map;
import org.apache.slide.projector.Context;
import org.apache.slide.projector.Processor;
import org.apache.slide.projector.Result;
import org.apache.slide.projector.descriptor.ParameterDescriptor;
import org.apache.slide.projector.descriptor.ResultDescriptor;
import org.apache.slide.projector.descriptor.ResultEntryDescriptor;
import org.apache.slide.projector.descriptor.StateDescriptor;
import org.apache.slide.projector.value.Value;
/**
* @version $Revision: 1.3 $
*/
public abstract class SimpleProcessor implements Processor {
public final static String INPUT = "input";
public final static String OUTPUT = "output";
public abstract Value process(Value input, Context context) throws Exception;
public abstract ParameterDescriptor getParameterDescriptor();
public abstract ResultEntryDescriptor getResultEntryDescriptor();
public Result process(Map parameter, Context context) throws Exception {
Value input = (Value)parameter.get(INPUT);
Value output = process(input, context);
return new Result(StateDescriptor.OK, OUTPUT, output);
}
public ParameterDescriptor[] getParameterDescriptors() {
return new ParameterDescriptor[] { getParameterDescriptor() };
}
public ResultDescriptor getResultDescriptor() {
return new ResultDescriptor(
new StateDescriptor[] { StateDescriptor.OK_DESCRIPTOR },
new ResultEntryDescriptor[] {
getResultEntryDescriptor()
});
}
}