/*-- $Id: Driver.java,v 1.5 1999/11/22 02:31:17 jtauber Exp $ --
============================================================================
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
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;
// FOP
import org.apache.fop.fo.FOTreeBuilder;
import org.apache.fop.fo.ElementMapping;
import org.apache.fop.layout.AreaTree;
import org.apache.fop.layout.FontInfo;
import org.apache.fop.render.Renderer;
// DOM
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Attr;
// SAX
import org.xml.sax.DocumentHandler;
import org.xml.sax.InputSource;
import org.xml.sax.Parser;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributeListImpl;
// Java
import java.io.PrintWriter;
import java.io.IOException;
public class Driver {
protected FOTreeBuilder treeBuilder;
protected AreaTree areaTree;
protected Renderer renderer;
protected PrintWriter writer;
public Driver() {
this.treeBuilder = new FOTreeBuilder();
}
public void setRenderer(Renderer renderer) {
this.renderer = renderer;
}
public void setRenderer(String rendererClassName, String producer) {
this.renderer = createRenderer(rendererClassName);
this.renderer.setProducer(producer);
}
protected Renderer createRenderer(String rendererClassName) {
System.err.println("using renderer " + rendererClassName);
try {
return (Renderer)
Class.forName(rendererClassName).newInstance();
} catch (ClassNotFoundException e) {
System.err.println("Could not find " + rendererClassName);
} catch (InstantiationException e) {
System.err.println("Could not instantiate "
+ rendererClassName);
} catch (IllegalAccessException e) {
System.err.println("Could not access " + rendererClassName);
} catch (ClassCastException e) {
System.err.println(rendererClassName + " is not a renderer");
}
return null;
}
public void addElementMapping(ElementMapping mapping) {
mapping.addToBuilder(this.treeBuilder);
}
public void addElementMapping(String mappingClassName) {
createElementMapping(mappingClassName).addToBuilder(this.treeBuilder);
}
protected ElementMapping createElementMapping(String mappingClassName) {
System.err.println("using element mapping " + mappingClassName);
try {
return (ElementMapping)
Class.forName(mappingClassName).newInstance();
} catch (ClassNotFoundException e) {
System.err.println("Could not find " + mappingClassName);
} catch (InstantiationException e) {
System.err.println("Could not instantiate "
+ mappingClassName);
} catch (IllegalAccessException e) {
System.err.println("Could not access " + mappingClassName);
} catch (ClassCastException e) {
System.err.println(mappingClassName + " is not an element mapping");
}
return null;
}
public DocumentHandler getDocumentHandler() {
return this.treeBuilder;
}
public void buildFOTree(Parser parser, InputSource source)
throws FOPException {
parser.setDocumentHandler(this.treeBuilder);
try {
parser.parse(source);
} catch (SAXException e) {
if (e.getException() instanceof FOPException)
throw (FOPException) e.getException();
else
throw new FOPException(e.getMessage());
} catch (IOException e) {
throw new FOPException(e.getMessage());
}
}
public void buildFOTree(Document document)
throws FOPException {
/* most of this code is modified from John Cowan's */
Node currentNode;
AttributeListImpl currentAtts;
/* temporary array for making Strings into character arrays */
char[] array = null;
currentAtts = new AttributeListImpl();
/* start at the document element */
currentNode = document;
try {
while (currentNode != null) {
switch (currentNode.getNodeType()) {
case Node.DOCUMENT_NODE:
this.treeBuilder.startDocument();
break;
case Node.CDATA_SECTION_NODE:
case Node.TEXT_NODE:
String data = currentNode.getNodeValue();
int datalen = data.length();
if (array == null || array.length < datalen) {
/* if the array isn't big enough, make a new
one */
array = new char[datalen];
}
data.getChars(0, datalen, array, 0);
this.treeBuilder.characters(array, 0, datalen);
break;
case Node.PROCESSING_INSTRUCTION_NODE:
this.treeBuilder.processingInstruction(
currentNode.getNodeName(),
currentNode.getNodeValue());
break;
case Node.ELEMENT_NODE:
NamedNodeMap map = currentNode.getAttributes();
currentAtts.clear();
for (int i = map.getLength() - 1; i >= 0; i--) {
Attr att = (Attr)(map.item(i));
currentAtts.addAttribute(att.getName(),
"CDATA",
att.getValue());
}
this.treeBuilder.startElement(
currentNode.getNodeName(), currentAtts);
break;
}
Node nextNode = currentNode.getFirstChild();
if (nextNode != null) {
currentNode = nextNode;
continue;
}
while (currentNode != null) {
switch (currentNode.getNodeType()) {
case Node.DOCUMENT_NODE:
this.treeBuilder.endDocument();
break;
case Node.ELEMENT_NODE:
this.treeBuilder.endElement(
currentNode.getNodeName());
break;
}
nextNode = currentNode.getNextSibling();
if (nextNode != null) {
currentNode = nextNode;
break;
}
currentNode = currentNode.getParentNode();
}
}
} catch (SAXException e) {
throw new FOPException(e.getMessage());
}
}
public void setWriter(PrintWriter writer) {
this.writer = writer;
}
public void format()
throws FOPException {
FontInfo fontInfo = new FontInfo();
this.renderer.setupFontInfo(fontInfo);
this.areaTree = new AreaTree();
this.areaTree.setFontInfo(fontInfo);
this.treeBuilder.format(areaTree);
}
public void render()
throws IOException {
this.renderer.render(areaTree, this.writer);
}
}