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Diffstat (limited to 'src/org/apache/fop/image/analyser/XMLReader.java')
| -rw-r--r-- | src/org/apache/fop/image/analyser/XMLReader.java | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/src/org/apache/fop/image/analyser/XMLReader.java b/src/org/apache/fop/image/analyser/XMLReader.java deleted file mode 100644 index 4c075056a..000000000 --- a/src/org/apache/fop/image/analyser/XMLReader.java +++ /dev/null @@ -1,182 +0,0 @@ -/* - * $Id$ - * ============================================================================ - * The Apache Software License, Version 1.1 - * ============================================================================ - * - * Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modifica- - * tion, 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 acknowledgment: "This product includes software - * developed by the Apache Software Foundation (http://www.apache.org/)." - * Alternately, this acknowledgment may appear in the software itself, if - * and wherever such third-party acknowledgments normally appear. - * - * 4. The names "FOP" 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 name, without prior written permission of the - * Apache Software Foundation. - * - * 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 (INCLU- - * DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 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 and was originally created by - * James Tauber <jtauber@jtauber.com>. For more information on the Apache - * Software Foundation, please see <http://www.apache.org/>. - */ -package org.apache.fop.image.analyser; - -// Java -import java.io.InputStream; -import java.io.IOException; -import java.util.Map; - -// XML -import javax.xml.parsers.DocumentBuilderFactory; -import org.w3c.dom.Document; -import org.w3c.dom.Element; - -// FOP -import org.apache.fop.image.FopImage; -import org.apache.fop.fo.FOUserAgent; - -/** ImageReader object for XML document image type. */ -public class XMLReader implements ImageReader { - - private static Map converters = new java.util.HashMap(); - - /** - * Registers a Converter implementation with XMLReader. - * - * @param ns The namespace to associate with this converter - * @param conv The actual Converter implementation - */ - public static void setConverter(String ns, Converter conv) { - converters.put(ns, conv); - } - - /** @see org.apache.fop.image.analyser.ImageReader */ - public FopImage.ImageInfo verifySignature(String uri, InputStream fis, - FOUserAgent ua) - throws IOException { - FopImage.ImageInfo info = loadImage(uri, fis, ua); - if (info != null) { - try { - fis.close(); - } catch (Exception e) { - //ignore - } - } - return info; - } - - /** - * Returns the MIME type supported by this implementation. - * - * @return The MIME type - */ - public String getMimeType() { - return "text/xml"; - } - - /** - * Creates an ImageInfo object from an XML image read from a stream. - * - * @todo This means the external svg document will be loaded twice. Possibly need - * a slightly different design for the image stuff. - * - * @param uri The URI to the image - * @param bis The InputStream - * @param ua The user agent - * @return An ImageInfo object describing the image - */ - protected FopImage.ImageInfo loadImage(String uri, InputStream bis, - FOUserAgent ua) { - return createDocument(bis, ua); - } - - /** - * Creates an ImageInfo object from an XML image read from a stream. - * - * @param is The InputStream - * @param ua The user agent - * @return An ImageInfo object describing the image - */ - public FopImage.ImageInfo createDocument(InputStream is, FOUserAgent ua) { - Document doc = null; - FopImage.ImageInfo info = new FopImage.ImageInfo(); - info.mimeType = getMimeType(); - - try { - int length = is.available(); - is.mark(length); - - DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); - doc = dbf.newDocumentBuilder().parse(is); - info.data = doc; - - Element root = doc.getDocumentElement(); - ua.getLogger().debug("XML image namespace: " + root.getAttribute("xmlns")); - String ns = root.getAttribute("xmlns"); - info.str = ns; - - Converter conv = (Converter) converters.get(ns); - if (conv != null) { - FopImage.ImageInfo i = conv.convert(doc); - if (i != null) { - info = i; - } - } - } catch (Exception e) { - ua.getLogger().warn("Error while constructing image from XML", e); - try { - is.reset(); - } catch (IOException ioe) { - // throw the original exception, not this one - } - return null; - } - return info; - } - - /** - * This interface is to be implemented for XML to image converters. - */ - public static interface Converter { - - /** - * This method is called for a DOM document to be converted into an - * ImageInfo object. - * - * @param doc The DOM document to convert - * @return An ImageInfo object describing the image - */ - FopImage.ImageInfo convert(Document doc); - } - -} - |