+++ /dev/null
-/*
- * $Id$
- *
- * ============================================================================
- * The Apache Software License, Version 1.1
- * ============================================================================
- *
- * Copyright (C) 1999-2004 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/>.
- *
- *
- * @author <a href="mailto:pbwest@powerup.com.au">Peter B. West</a>
- * @version $Revision$ $Name$
- */
-package org.apache.fop.xml;
-
-import java.util.NoSuchElementException;
-
-import org.xml.sax.Attributes;
-import org.xml.sax.InputSource;
-import org.xml.sax.XMLReader;
-import org.xml.sax.helpers.AttributesImpl;
-import org.xml.sax.helpers.DefaultHandler;
-
-import org.apache.fop.apps.Driver;
-import org.apache.fop.apps.FOPException;
-import org.apache.fop.configuration.Configuration;
-import org.apache.fop.fo.FObjectNames;
-import org.apache.fop.xml.XMLNamespaces;
-
-/**
- * <tt>FoXMLSerialHandler</tt> is the <tt>ContentHandler</tt> for the
- * background <tt>XMLReader</tt> thread.
- */
-
-public class FoXMLSerialHandler extends DefaultHandler implements Runnable {
-
- private static final String tag = "$Name$";
- private static final String revision = "$Revision$";
-
- private SyncedXmlEventsBuffer events;
- private XMLReader parser;
- private XMLNamespaces namespaces;
- private InputSource source;
- private Thread foThread;
- private boolean errorDump;
-
- /**
- * @param events the events buffer.
- * @param parser the xml parser.
- * @param source the parser input source.
- */
- public FoXMLSerialHandler
- (SyncedXmlEventsBuffer events, XMLReader parser, InputSource source)
- {
- this.events = events;
- this.parser = parser;
- this.source = source;
- namespaces = events.getNamespaces();
- parser.setContentHandler(this);
- errorDump = Configuration.getBooleanValue("debugMode").booleanValue();
- }
-
- public void setFoThread(Thread foThread) {
- this.foThread = foThread;
- }
-
- /**
- * This is the run method for the callback parser thread.
- */
- public void run() {
- // I''m in the thread - run the parser
- try {
- parser.parse(source);
- //System.out.println("Parser terminating.");
- } catch (Exception e) {
- if (errorDump) Driver.dumpError(e);
- if (foThread != null) {
- try {
- foThread.interrupt();
- } catch (Exception ex) {} //ignore
- }
- throw new RuntimeException(e.getMessage());
- }
- }
-
- /**
- * Utility routine for the callback methods. It captures the
- * <tt>InterruptedException</tt> that is possible from the <i>put</i>
- * method of a <tt>SyncedXmlEventsBuffer</tt>.
- */
- public void putEvent(XMLEvent event) throws NoSuchElementException {
- synchronized (events) {
- try {
- events.put(event);
- } catch (InterruptedException e) {
- throw new RuntimeException
- ("Producer interrupted: " +e.getMessage());
- }
- }
- }
-
- /**
- * Callback routine for the parser.
- */
- public void startDocument() throws NoSuchElementException {
- synchronized (events) {
- XMLEvent event = acquireXMLEvent(XMLNamespaces.DefAttrNSIndex);
- //System.out.println("StartDocument thread "
- // + Thread.currentThread().getName());
- event.type = XMLEvent.STARTDOCUMENT;
- //System.out.println("SerialHandler: " + event);
- putEvent(event);
- }
- }
-
- /**
- * Callback routine for the parser.
- */
- public void endDocument() throws NoSuchElementException {
- synchronized (events) {
- XMLEvent event = acquireXMLEvent(XMLNamespaces.DefAttrNSIndex);
- //System.out.println("EndDocument thread "
- //+ Thread.currentThread().getName());
- event.type = XMLEvent.ENDDOCUMENT;
- //System.out.println("SerialHandler: " + event);
- putEvent(event);
- events.producerExhausted();
- }
- }
-
- /**
- * An internal method to acquire an event for a given namespace
- * @param nsIndex the namespace index
- * @return the acquired event
- */
- private XMLEvent acquireXMLEvent(int nsIndex) {
- try {
- return
- namespaces.acquireXMLEvent(nsIndex);
- } catch (FOPException ex) {
- throw new RuntimeException(
- "Namespace index " + nsIndex + " not recognized");
- }
- }
-
- /**
- * Callback routine for the parser.
- * @param uri the URI of the element name
- * @param localName the localname of the element
- * @param qName the (prefix) qualified name of the element
- * @param attributes the attribute set of the element, as an object
- * implementing the <tt>Attributes</tt> interface.
- */
- public void startElement(String uri, String localName,
- String qName, Attributes attributes)
- throws NoSuchElementException
- {
- synchronized (events) {
- try {
- int uriIndex = namespaces.getURIIndex(uri);
- XMLEvent event = acquireXMLEvent(uriIndex);
- if (uriIndex == XMLNamespaces.XSLNSpaceIndex) {
- event.setFoType(FObjectNames.getFOIndex(localName));
- }
- //System.out.println("startElement: acquired " + event.id);
- //System.out.println("StartElement thread "
- // + Thread.currentThread().getName());
- event.type = XMLEvent.STARTELEMENT;
- // Is this from the fo: namespace?
- event.uriIndex = uriIndex;
- event.localName = localName;
- //event.qName = qName;
- event.attributes = new AttributesImpl(attributes);
- //System.out.println("SerialHandler: " + event);
- putEvent(event);
- } catch (FOPException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- }
-
- /**
- * Callback routine for parser.
- * @param uri the URI of this element name
- * @param localName the unqualified localname of this element
- * @param qName the (prefix) qualified name of this element
- */
- public void endElement(String uri, String localName,
- String qName)
- throws NoSuchElementException
- {
- synchronized (events) {
- try {
- int uriIndex = namespaces.getURIIndex(uri);
- XMLEvent event = namespaces.acquireXMLEvent(uriIndex);
- //System.out.println("endElement: acquired " + event.id);
- //System.out.println("EndElement thread "
- //+ Thread.currentThread().getName());
- event.type = XMLEvent.ENDELEMENT;
- event.uriIndex = uriIndex;
- if (uriIndex == XMLNamespaces.XSLNSpaceIndex) {
- event.setFoType(FObjectNames.getFOIndex(localName));
- }
- event.localName = localName;
- //event.qName = qName;
- putEvent(event);
- } catch (FOPException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- }
-
- /**
- * Callback routine for parser to handle characters.
- * @param ch the array of characters
- * @param start starting position of this set of characters in the
- * <i>ch</i> array.
- * @param length number of characters in this set
- */
- public void characters(char[] ch, int start, int length)
- throws NoSuchElementException
- {
- synchronized (events) {
- try {
- // TODO chars events have no namespace, but a namespace is
- // essential for subsequent processing. Use the default
- // attribute namespace (the empty string), and rely on
- // downstream processing to determine the environment in
- // which the characters belong.
- XMLEvent event
- = namespaces.acquireXMLEvent(XMLNamespaces.DefAttrNSIndex);
- //System.out.println("characters thread "
- // + Thread.currentThread().getName());
- event.type = XMLEvent.CHARACTERS;
- event.chars = new String(ch, start, length);
- // Can't setFoType, because this event is now an XMLEvent,
- // not an FoXMLEvent
- //event.setFoType(FObjectNames.PCDATA);
- //System.out.println("SerialHandler: " + event);
- putEvent(event);
- } catch (FOPException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- }
-}
projects / xmlgraphics-fop.git / commitdiff