org.apache.xmlgraphics.image.loader.pipeline.ImageConversionEdge Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id: ImageConversionEdge.java 924666 2010-03-18 08:26:30Z jeremias $ */
package org.apache.xmlgraphics.image.loader.pipeline;
import org.apache.xmlgraphics.image.loader.spi.ImageConverter;
import org.apache.xmlgraphics.image.loader.util.Penalty;
import org.apache.xmlgraphics.util.dijkstra.Edge;
import org.apache.xmlgraphics.util.dijkstra.Vertex;
/**
* Represents an image conversion. The class basically wraps an ImageConverter so it can be
* used with Dijkstra's shortest route algorithm to build image conversion pipelines.
*/
class ImageConversionEdge implements Edge {
private ImageRepresentation source;
private ImageRepresentation target;
private ImageConverter converter;
private int penalty;
/**
* Main constructor.
* @param converter the image converter
* @param penalty the penalty for this edge
*/
public ImageConversionEdge(ImageConverter converter, Penalty penalty) {
this.converter = converter;
this.source = new ImageRepresentation(converter.getSourceFlavor());
this.target = new ImageRepresentation(converter.getTargetFlavor());
this.penalty = Math.max(0, penalty.getValue());
}
/**
* Returns the wrapped ImageConverter.
* @return the ImageConverter
*/
public ImageConverter getImageConverter() {
return this.converter;
}
/** {@inheritDoc} */
public int getPenalty() {
return this.penalty;
}
/** {@inheritDoc} */
public Vertex getStart() {
return this.source;
}
/** {@inheritDoc} */
public Vertex getEnd() {
return this.target;
}
}