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- /*
- * Copyright 1999-2004 The Apache Software Foundation.
- *
- * Licensed 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.apps;
-
- // Imported SAX classes
- import org.xml.sax.InputSource;
- import org.xml.sax.XMLReader;
- import org.xml.sax.SAXException;
- import org.xml.sax.SAXNotSupportedException;
-
- // java
- import javax.xml.parsers.SAXParserFactory;
- import javax.xml.parsers.ParserConfigurationException;
- import java.io.File;
- import java.net.URL;
-
-
- /**
- * Manages input if it is an XSL-FO file.
- */
- public class FOFileHandler extends InputHandler {
-
- private File fofile = null;
- private URL foURL = null;
-
- /**
- * Create a FOFileHandler for a file.
- * @param fofile the file to read the FO document.
- */
- public FOFileHandler(File fofile) {
- this.fofile = fofile;
- }
-
- /**
- * Create a FOFileHandler for an URL.
- * @param url the URL to read the FO document.
- */
- public FOFileHandler(URL url) {
- this.foURL = url;
- }
-
-
- /**
- * @see org.apache.fop.apps.InputHandler#getInputSource()
- */
- public InputSource getInputSource () {
- if (fofile != null) {
- return super.fileInputSource(fofile);
- }
- return super.urlInputSource(foURL);
- }
-
- /**
- * @see org.apache.fop.apps.InputHandler#getParser()
- */
- public XMLReader getParser() throws FOPException {
- return createParser();
- }
-
- /**
- * 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);
- factory.setFeature(
- "http://xml.org/sax/features/namespace-prefixes", true);
- return factory.newSAXParser().getXMLReader();
- } catch (SAXNotSupportedException se) {
- throw new FOPException("Error: You need a parser which allows the"
- + " http://xml.org/sax/features/namespace-prefixes"
- + " feature to be set to true to support namespaces", se);
- } catch (SAXException se) {
- throw new FOPException("Couldn't create XMLReader", se);
- } catch (ParserConfigurationException pce) {
- throw new FOPException("Couldn't create XMLReader", pce);
- }
- }
-
- /**
- * Returns the fully qualified classname of the standard XML parser for FOP
- * to use.
- * @return the XML parser classname
- */
- public static final String getParserClassName() {
- try {
- return createParser().getClass().getName();
- } catch (FOPException e) {
- return null;
- }
- }
- }
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