-/*-- $Id$ --
-
+/*-- $Id$ --
============================================================================
The Apache Software License, Version 1.1
============================================================================
-
Copyright (C) 1999 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
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
+ James Tauber <jtauber@jtauber.com>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
-
*/
-//Author: Eric SCHAEFFER
-//Description: create FopImage objects (with a configuration file)
-
package org.apache.fop.image;
// Java
import java.io.IOException;
-import org.apache.fop.messaging.MessageHandler;
-import java.net.*;
-import java.lang.reflect.*;
+import java.net.URL;
+import java.net.MalformedURLException;
+import java.lang.reflect.Constructor;
import java.util.Hashtable;
-public class FopImageFactory {
-
- private static Hashtable m_urlMap = new Hashtable();
-
- public static FopImage Make(String href) throws MalformedURLException, FopImageException {
-
- // Get the absolute URL
- URL absoluteURL = null;
-// try {
- absoluteURL = new URL(href);
-/*
- }
- catch (MalformedURLException e) {
- // maybe relative
- URL context_url = null;
- try {
- context_url = new URL(); // how to get the context URL ?
- try {
- absoluteURL = new URL(context_url, ref);
- }
- catch (MalformedURLException e_abs) {
- // not found
- MessageHandler.errorln("Invalid Image URL : " + e_abs.getMessage() + "(base URL " + context_url.toString() + ")");
- return null;
- }
- }
- catch (MalformedURLException e_context) {
- // pb context url
- MessageHandler.errorln("Invalid Image URL - error on relative URL : " + e_context.getMessage());
- return null;
- }
- }
-*/
-
- // check if already created
- FopImage imageObject = (FopImage) m_urlMap.get(absoluteURL.toString());
- if (imageObject != null) return imageObject;
-
- // If not, check the content type and create a new one
-
- String contentType = null;
- // try to get content type by URL
- try {
- URLConnection url_conn = absoluteURL.openConnection();
- contentType = url_conn.getContentType();
- } catch (IOException e) {
- throw new FopImageException("Error while recovering Image Type (" + absoluteURL.toString() + ") : " + e.getMessage());
- }
-
- // try get content type by extension if the first method failed
- if (contentType == null) {
- String stringURL = absoluteURL.toString();
- int extensionStart = stringURL.lastIndexOf(".");
- if ( ( extensionStart > 0 ) && ( extensionStart < stringURL.length() - 1 ) ) {
- String extensionURL = stringURL.substring(extensionStart + 1, stringURL.length());
-
- // BETTER : use the configuration file to associate an extension to a mime-type
-
- if ( extensionURL.equalsIgnoreCase("gif") ) {
- contentType = "image/gif";
- } else if ( ( extensionURL.equalsIgnoreCase("jpeg") ) ||
- ( extensionURL.equalsIgnoreCase("jpg") ) ||
- ( extensionURL.equalsIgnoreCase("jpe") ) ) {
- contentType = "image/jpeg";
- } else if ( extensionURL.equalsIgnoreCase("png") ) {
- contentType = "image/png";
- } else if ( extensionURL.equalsIgnoreCase("tga") ) {
- contentType = "image/tga";
- } else if ( extensionURL.equalsIgnoreCase("dib") ) {
- contentType = "image/dib";
- } else if ( extensionURL.equalsIgnoreCase("ddb") ) {
- contentType = "image/ddb";
- } else if ( extensionURL.equalsIgnoreCase("bmp") ) {
- contentType = "image/bmp";
- } else if ( extensionURL.equalsIgnoreCase("pict") ) {
- contentType = "image/pict";
- } else if ( extensionURL.equalsIgnoreCase("psd") ) {
- contentType = "image/jpeg";
- } else if ( extensionURL.equalsIgnoreCase("ras") ) {
- contentType = "image/cmu-raster";
- } else if ( ( extensionURL.equalsIgnoreCase("tiff") ) ||
- ( extensionURL.equalsIgnoreCase("tif") ) ) {
- contentType = "image/tiff";
- } else if ( extensionURL.equalsIgnoreCase("xbm") ) {
- contentType = "image/xbm";
- } else if ( extensionURL.equalsIgnoreCase("xpm") ) {
- contentType = "image/xpm";
- } else if ( extensionURL.equalsIgnoreCase("ico") ) {
- contentType = "image/ico";
- } else if ( extensionURL.equalsIgnoreCase("cur") ) {
- contentType = "image/cur";
- } else if ( extensionURL.equalsIgnoreCase("pcx") ) {
- contentType = "image/pcx";
- }
- }
- }
-
- // if content type is still unknown
- if (contentType == null) {
- throw new FopImageException("Unknown image type (" + absoluteURL.toString() + ")");
- }
+// FOP
+import org.apache.fop.messaging.MessageHandler;
+import org.apache.fop.image.analyser.ImageReaderFactory;
+import org.apache.fop.image.analyser.ImageReader;
- // load the right image class (configuration file)
- // ...
- // return new <FopImage implementing class>
- // ...
- Object imageInstance = null;
- Class imageClass = null;
- try {
-// imageClass = Class.forName("org.apache.fop.image.JimiImage"); //ClassNotFoundException
- imageClass = Class.forName("org.apache.fop.image.GifJpegImage"); //ClassNotFoundException
- Class[] imageConstructorParameters = new Class[1];
- imageConstructorParameters[0] = Class.forName("java.net.URL");
- Constructor imageConstructor = imageClass.getDeclaredConstructor(imageConstructorParameters); //NoSuchMethodException, SecurityException
- Object[] initArgs = new Object[1];
- initArgs[0] = absoluteURL;
- imageInstance = imageConstructor.newInstance(initArgs); // InstanciationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException
- } catch (ClassNotFoundException classex) {
-// throw new FopImageException("class " + "org.apache.fop.image.JimiImage" + " not found");
- throw new FopImageException("class " + "org.apache.fop.image.GifJpegImage" + " not found");
-/*
- } catch (FopImageException fopex) {
- throw new FopImageException(fopex.getMessage());
-*/
- } catch (Exception ex) {
- throw new FopImageException("class " + imageClass.getName() + " doesn't implement org.apache.fop.image.FopImage interface : " + ex.getMessage());
- }
- if (! (imageInstance instanceof org.apache.fop.image.FopImage)) {
- throw new FopImageException("class " + imageClass.getName() + " doesn't implement org.apache.fop.image.FopImage interface");
- }
- m_urlMap.put(absoluteURL.toString(), imageInstance);
- return (FopImage) imageInstance;
+/**
+ * create FopImage objects (with a configuration file - not yet implemented).
+ * @author Eric SCHAEFFER
+ */
+public class FopImageFactory {
- // if no corresponding image class
-// throw new FopImageException(contentType + " not supported (" + absoluteURL.toString() + ")");
- }
+ private static Hashtable m_urlMap = new Hashtable();
+
+ /**
+ * create an FopImage objects.
+ * @param href image URL as a String
+ * @return a new FopImage object
+ * @exception java.net.MalformedURLException bad URL
+ * @exception FopImageException an error occured during construction
+ */
+ public static FopImage Make(String href)
+ throws MalformedURLException, FopImageException {
+
+ // Get the absolute URL
+ URL absoluteURL = null;
+ // try {
+ absoluteURL = new URL(href);
+ /*
+ }
+ catch (MalformedURLException e) {
+ // maybe relative
+ URL context_url = null;
+ try {
+ context_url = new URL(); // how to get the context URL ?
+ try {
+ absoluteURL = new URL(context_url, ref);
+ }
+ catch (MalformedURLException e_abs) {
+ // not found
+ MessageHandler.errorln(
+ "Invalid Image URL : " +
+ e_abs.getMessage() +
+ "(base URL " + context_url.toString() + ")"
+ );
+ return null;
+ }
+ }
+ catch (MalformedURLException e_context) {
+ // pb context url
+ MessageHandler.errorln("Invalid Image URL - error on relative URL : " + e_context.getMessage());
+ return null;
+ }
+ }
+ */
+
+ // check if already created
+ FopImage imageObject =
+ (FopImage) m_urlMap.get(absoluteURL.toString());
+ if (imageObject != null)
+ return imageObject;
+
+ // If not, check image type
+ ImageReader imgReader = null;
+ try {
+ imgReader =
+ ImageReaderFactory.Make(absoluteURL.openStream());
+ } catch (Exception e) {
+ throw new FopImageException(
+ "Error while recovering Image Informations (" +
+ absoluteURL.toString() + ") : " + e.getMessage());
+ }
+ if (imgReader == null)
+ throw new FopImageException("No ImageReader for this type of image (" +
+ absoluteURL.toString() + ")");
+ // Associate mime-type to FopImage class
+ String imgMimeType = imgReader.getMimeType();
+ String imgClassName = null;
+ if ("image/gif".equals(imgMimeType)) {
+ imgClassName = "org.apache.fop.image.GifJpegImage";
+ } else if ("image/jpeg".equals(imgMimeType)) {
+ imgClassName = "org.apache.fop.image.GifJpegImage";
+ } else if ("image/png".equals(imgMimeType)) {
+ imgClassName = "org.apache.fop.image.JimiImage";
+ } else if ("image/tga".equals(imgMimeType)) {
+ imgClassName = "org.apache.fop.image.JimiImage";
+ } else if ("image/bmp".equals(imgMimeType)) {
+ imgClassName = "org.apache.fop.image.JimiImage";
+ } else if ("image/tiff".equals(imgMimeType)) {
+ imgClassName = "org.apache.fop.image.JimiImage";
+ }
+ if (imgClassName == null)
+ throw new FopImageException("Unsupported image type (" +
+ absoluteURL.toString() + ") : " + imgMimeType);
+
+ // load the right image class
+ // return new <FopImage implementing class>
+ Object imageInstance = null;
+ Class imageClass = null;
+ try {
+ imageClass = Class.forName(imgClassName);
+ Class[] imageConstructorParameters = new Class[2];
+ imageConstructorParameters[0] = Class.forName("java.net.URL");
+ imageConstructorParameters[1] = Class.forName("org.apache.fop.image.analyser.ImageReader");
+ Constructor imageConstructor =
+ imageClass.getDeclaredConstructor(
+ imageConstructorParameters);
+ Object[] initArgs = new Object[2];
+ initArgs[0] = absoluteURL;
+ initArgs[1] = imgReader;
+ imageInstance = imageConstructor.newInstance(initArgs);
+ } catch (Exception ex) {
+ throw new FopImageException(
+ "Error creating FopImage object (" +
+ absoluteURL.toString() + ") : " + ex.getMessage());
+ }
+ if (! (imageInstance instanceof org.apache.fop.image.FopImage)) {
+ throw new FopImageException(
+ "Error creating FopImage object (" +
+ absoluteURL.toString() + ") : " + "class " +
+ imageClass.getName() + " doesn't implement org.apache.fop.image.FopImage interface");
+ }
+ m_urlMap.put(absoluteURL.toString(), imageInstance);
+ return (FopImage) imageInstance;
+ }
}
+
projects / xmlgraphics-fop.git / commitdiff