/*
* $Header: /home/cvs/jakarta-tomcat/src/j2ee/org/apache/tomcat/util/XMLParser.java,v 1.2 2000/02/14 04:59:37 costin Exp $
* $Revision: 1.2 $
* $Date: 2000/02/14 04:59:37 $
*
* ====================================================================
*
* 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
* modification, 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 acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", 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 names without prior written
* permission of the Apache Group.
*
* 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 (INCLUDING, 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. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* [Additional notices, if required by prior licensing conditions]
*
*/
package org.apache.tomcat.util;
import org.apache.tomcat.util.StringManager;
import org.apache.tomcat.core.Constants;
import com.sun.xml.tree.XmlDocument;
import com.sun.xml.tree.ElementNode;
import com.sun.xml.tree.XmlDocumentBuilder;
import com.sun.xml.parser.Resolver;
import com.sun.xml.parser.ValidatingParser;
import com.sun.xml.parser.Parser;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.w3c.dom.Element;
import org.w3c.dom.Text;
import org.w3c.dom.CharacterData;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.w3c.dom.NamedNodeMap;
import java.io.File;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.Enumeration;
import java.util.Vector;
import java.io.IOException;
import java.lang.NullPointerException;
/**
*
* @author James Todd [gonzo@eng.sun.com]
*/
public class XMLParser {
private StringManager sm =
StringManager.getManager("org.apache.tomcat.util");
private XmlDocument doc = null;
private static final boolean DefaultCheckType = false;
private static final String DefaultContentType =
"text/html;charset=utf-8";
private static final String DefaultScheme = "file";
private static final boolean DefaultXMLValidate = true;
private static final int PCDataType = 3;
public XMLParser() {
}
public void clear() {
doc = null;
}
public XMLTree process(InputStream is)
throws IOException, SAXParseException, SAXException {
return process(is, DefaultCheckType, DefaultContentType,
DefaultScheme);
}
public XMLTree process(InputStream is, boolean checkType)
throws IOException, SAXParseException, SAXException {
return process(is, checkType, DefaultContentType, DefaultScheme);
}
public XMLTree process(InputStream is, boolean checkType,
String contentType)
throws IOException, SAXParseException, SAXException {
return process(is, checkType, contentType, DefaultScheme);
}
public XMLTree process(InputStream is, boolean checkType,
String contentType, String scheme)
throws IOException, SAXParseException, SAXException {
return parse(Resolver.createInputSource(contentType, is,
checkType, scheme), checkType);
}
public XMLTree process(URL uri)
throws IOException, SAXParseException, SAXException {
return process(uri, DefaultCheckType);
}
public XMLTree process(URL uri, boolean checkType)
throws IOException, SAXParseException, SAXException {
return parse(new InputSource(uri.toString()), checkType);
}
public XmlDocument getXmlDocument() {
return doc;
}
public void write()
throws IOException {
write(null);
}
public void write(OutputStream os)
throws IOException {
if (os == null) {
os = System.out;
}
doc.getDocumentElement().normalize();
doc.write(os);
}
private XMLTree parse(InputSource is)
throws IOException, SAXParseException, SAXException {
return parse(is, DefaultXMLValidate);
}
private XMLTree parse(InputSource is, boolean validate)
throws IOException, SAXParseException, SAXException {
Parser parser = (validate) ?
new ValidatingParser(true) : new Parser();
Resolver resolver = new Resolver();
XmlDocumentBuilder builder = new XmlDocumentBuilder();
// Server.xml is not validated and has no DTD ( and will change for a while)
// URL serverURL = this.getClass().getResource(
// Constants.DTD.Server.Resource);
URL webApplicationURL = this.getClass().getResource(
Constants.WEB_XML_Resource);
// resolver.registerCatalogEntry(Constants.DTD.Server.PublicId,
// serverURL.toString());
resolver.registerCatalogEntry(
Constants.WEB_XML_PublicId,
webApplicationURL.toString());
try {
// parser.setFastStandalone(true);
parser.setEntityResolver(resolver);
builder.setDisableNamespaces(true);
builder.setParser(parser);
parser.parse(is);
doc = builder.getDocument();
} catch (Exception e) {
String systemId = "";
int lineNumber = -1;
String message = "";
String publicId = "";
int columnNumber = -1;
if (e instanceof SAXParseException) {
systemId = ((SAXParseException)e).getSystemId();
lineNumber = ((SAXParseException)e).getLineNumber();
message = ((SAXParseException)e).getMessage();
publicId = ((SAXParseException)e).getPublicId();
columnNumber = ((SAXParseException)e).getColumnNumber();
}
String msg = sm.getString("xml.parse") + ": " + systemId +
" : " + lineNumber + "\n msg : " + message;
throw new SAXParseException(msg, publicId, systemId,
lineNumber, columnNumber);
}
XMLTree xmlElement = new XMLTree();
Element element = doc.getDocumentElement();
xmlElement.setName(element.getTagName());
addAttributes(xmlElement, element);
addElements(xmlElement, element);
return xmlElement;
}
private void addAttributes(XMLTree xmlElement, Node node) {
NamedNodeMap attributes = node.getAttributes();
if (attributes != null) {
for (int i = 0; i < attributes.getLength(); i++) {
Node attribute = attributes.item(i);
xmlElement.addAttribute(attribute.getNodeName(),
attribute.getNodeValue());
}
}
}
private void addElements(XMLTree xmlElement, Node node) {
NodeList childNodes = node.getChildNodes();
for (int i = 0; i < childNodes.getLength(); i++) {
XMLTree childXMLTree = new XMLTree();
Node childNode = childNodes.item(i);
childXMLTree.setName(childNode.getNodeName());
addAttributes(childXMLTree, childNode);
if (childNode.getNodeType() != PCDataType) {
addElements(childXMLTree, childNode);
xmlElement.addElement(childXMLTree);
} else {
xmlElement.setValue(childNode.getNodeValue());
}
}
}
}