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- /*
- * $Id$
- * ============================================================================
- * 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.apps;
-
- // SAX
- import org.xml.sax.InputSource;
- import org.xml.sax.XMLReader;
- import org.xml.sax.SAXException;
-
- // Java
- import javax.xml.parsers.SAXParserFactory;
- import javax.xml.parsers.ParserConfigurationException;
- import java.net.URL;
- import java.io.File;
-
- /**
- * Abstract super class for input handlers.
- * Should be used to abstract the various possibilities on how input
- * can be provided to FOP (but actually isn't).
- */
- public abstract class InputHandler {
-
- /**
- * Get the input source associated with this input handler.
- * @return the input source
- */
- public abstract InputSource getInputSource();
-
- /**
- * Get the SAX parser associated with this input handler.
- * @return the SAX parser
- * @throws FOPException in case of an error determining the SAX parser
- */
- public abstract XMLReader getParser() throws FOPException;
-
- /**
- * Creates an InputSource from a URL.
- * @param url URL to use
- * @return the newly created InputSource
- */
- public static InputSource urlInputSource(URL url) {
- return new InputSource(url.toString());
- }
-
- /**
- * Creates an <code>InputSource</code> from a <code>File</code>
- * @param file the <code>File</code>
- * @return the <code>InputSource</code> created
- */
- public static InputSource fileInputSource(File file) {
- /* this code adapted from James Clark's in XT */
- String path = file.getAbsolutePath();
- String fSep = System.getProperty("file.separator");
- if (fSep != null && fSep.length() == 1) {
- path = path.replace(fSep.charAt(0), '/');
- }
- if (path.length() > 0 && path.charAt(0) != '/') {
- path = '/' + path;
- }
- try {
- return new InputSource(new URL("file", null, path).toString());
- } catch (java.net.MalformedURLException e) {
- throw new Error("unexpected MalformedURLException");
- }
- }
-
- /**
- * Creates <code>XMLReader</code> object using default
- * <code>SAXParserFactory</code>
- * @return the created <code>XMLReader</code>
- * @throws FOPException if the parser couldn't be created or configured for proper operation.
- */
- protected static XMLReader createParser() throws FOPException {
- try {
- SAXParserFactory factory = SAXParserFactory.newInstance();
- factory.setNamespaceAware(true);
- return factory.newSAXParser().getXMLReader();
- } catch (SAXException se) {
- throw new FOPException("Coudn't create XMLReader", se);
- } catch (ParserConfigurationException pce) {
- throw new FOPException("Coudn't create XMLReader", pce);
- }
- }
- }
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