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/*
* 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.image.loader.batik;
import java.io.IOException;
import java.util.Map;
import org.apache.batik.dom.svg.SVGDOMImplementation;
import org.apache.xmlgraphics.image.loader.Image;
import org.apache.xmlgraphics.image.loader.ImageException;
import org.apache.xmlgraphics.image.loader.ImageFlavor;
import org.apache.xmlgraphics.image.loader.ImageInfo;
import org.apache.xmlgraphics.image.loader.ImageSessionContext;
import org.apache.xmlgraphics.image.loader.impl.AbstractImageLoader;
import org.apache.xmlgraphics.image.loader.impl.ImageXMLDOM;
import org.apache.xmlgraphics.util.MimeConstants;
/**
* ImageLoader for SVG (using Apache Batik).
*/
public class ImageLoaderSVG extends AbstractImageLoader {
private ImageFlavor targetFlavor;
/**
* Main constructor.
* @param targetFlavor the target flavor
*/
public ImageLoaderSVG(ImageFlavor targetFlavor) {
if (!(ImageFlavor.XML_DOM.equals(targetFlavor))) {
throw new IllegalArgumentException("Unsupported target ImageFlavor: " + targetFlavor);
}
this.targetFlavor = targetFlavor;
}
/** {@inheritDoc} */
public ImageFlavor getTargetFlavor() {
return this.targetFlavor;
}
/** {@inheritDoc} */
public Image loadImage(ImageInfo info, Map hints, ImageSessionContext session)
throws ImageException, IOException {
if (!MimeConstants.MIME_SVG.equals(info.getMimeType())) {
throw new IllegalArgumentException("ImageInfo must be from an SVG image");
}
Image img = info.getOriginalImage();
if (!(img instanceof ImageXMLDOM)) {
throw new IllegalArgumentException(
"ImageInfo was expected to contain the SVG document as DOM");
}
ImageXMLDOM svgImage = (ImageXMLDOM)img;
if (!SVGDOMImplementation.SVG_NAMESPACE_URI.equals(svgImage.getRootNamespace())) {
throw new IllegalArgumentException(
"The Image is not in the SVG namespace: " + svgImage.getRootNamespace());
}
return svgImage;
}
}
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