- /*
- * 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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.visual;
-
- import java.awt.image.BufferedImage;
- import java.io.BufferedOutputStream;
- import java.io.File;
- import java.io.FileOutputStream;
- import java.io.OutputStream;
- import java.net.URI;
-
- import javax.xml.transform.Transformer;
- import javax.xml.transform.sax.SAXResult;
- import javax.xml.transform.stream.StreamSource;
-
- import org.apache.commons.io.IOUtils;
-
- import org.apache.fop.apps.FOUserAgent;
- import org.apache.fop.apps.Fop;
- import org.apache.fop.apps.FopFactory;
- import org.apache.fop.apps.MimeConstants;
- import org.apache.fop.configuration.Configurable;
- import org.apache.fop.configuration.Configuration;
- import org.apache.fop.configuration.ConfigurationException;
- import org.apache.fop.util.DefaultErrorListener;
-
- /**
- * BitmapProducer implementation that uses the Java2DRenderer to create bitmaps.
- * <p>
- * Here's what the configuration element looks like for the class:
- * <p>
- * <pre>
- * <producer classname="org.apache.fop.visual.BitmapProducerJava2D">
- * <delete-temp-files>false</delete-temp-files>
- * </producer>
- * </pre>
- * <p>
- * The "delete-temp-files" element is optional and defaults to true.
- */
- public class BitmapProducerJava2D extends AbstractBitmapProducer implements Configurable {
-
- // configure fopFactory as desired
- private final FopFactory fopFactory;
-
- private boolean deleteTempFiles;
-
- public BitmapProducerJava2D(URI baseUri) {
- super(baseUri);
- fopFactory = FopFactory.newInstance(baseUri);
- }
-
- /** @see org.apache.avalon.framework.configuration.Configurable */
- public void configure(Configuration cfg) throws ConfigurationException {
- this.deleteTempFiles = cfg.getChild("delete-temp-files").getValueAsBoolean(true);
- }
-
- /** @see org.apache.fop.visual.BitmapProducer */
- public BufferedImage produce(File src, int index, ProducerContext context) {
- try {
- FOUserAgent userAgent = fopFactory.newFOUserAgent();
- userAgent.setTargetResolution(context.getTargetResolution());
-
- File outputFile = new File(context.getTargetDir(),
- src.getName() + "." + index + ".java2d.png");
- OutputStream out = new FileOutputStream(outputFile);
- out = new BufferedOutputStream(out);
- try {
- Fop fop = fopFactory.newFop(MimeConstants.MIME_PNG, userAgent, out);
- SAXResult res = new SAXResult(fop.getDefaultHandler());
-
- Transformer transformer = getTransformer(context);
- transformer.setErrorListener(new DefaultErrorListener(log));
- transformer.transform(new StreamSource(src), res);
- } finally {
- IOUtils.closeQuietly(out);
- }
-
- BufferedImage img = BitmapComparator.getImage(outputFile);
- if (deleteTempFiles) {
- if (!outputFile.delete()) {
- log.warn("Cannot delete " + outputFile);
- outputFile.deleteOnExit();
- }
- }
- return img;
- } catch (Exception e) {
- e.printStackTrace();
- log.error(e);
- return null;
- }
- }
-
- }
|