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// --- BEGIN COPYRIGHT BLOCK ---
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// (C) 2007 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
package com.netscape.cmsutil.xml;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.StringWriter;
import java.util.Vector;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import org.xml.sax.SAXException;
public class XMLObject {
private Document mDoc = null;
public XMLObject() throws ParserConfigurationException {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = factory.newDocumentBuilder();
mDoc = docBuilder.newDocument();
}
public XMLObject(InputStream s)
throws SAXException, IOException, ParserConfigurationException {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = factory.newDocumentBuilder();
mDoc = docBuilder.parse(s);
}
public XMLObject(File f)
throws SAXException, IOException, ParserConfigurationException {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = factory.newDocumentBuilder();
mDoc = docBuilder.parse(f);
}
public Document getDocument() {
return mDoc;
}
/**
* Each document should have 1 root only. This method should be called once.
*/
public Node createRoot(String name) {
Element root = mDoc.createElement(name);
mDoc.appendChild(root);
return (Node) root;
}
public Node getRoot() {
return mDoc.getFirstChild();
}
/**
* If you have duplicate containers, then this method will return the
* first container in the list.
*/
public Node getContainer(String tagname) {
NodeList list = mDoc.getElementsByTagName(tagname);
if (list.getLength() > 0)
return list.item(0);
return null;
}
public Node createContainer(Node containerParent, String containerName) {
Element node = mDoc.createElement(containerName);
containerParent.appendChild(node);
return (Node) node;
}
public void addItemToContainer(Node container, String tagname, String value) {
Element node = mDoc.createElement(tagname);
Text text = mDoc.createTextNode(value);
node.appendChild(text);
container.appendChild(node);
}
public String getValue(String tagname) {
Node n = getContainer(tagname);
if (n != null) {
NodeList c = n.getChildNodes();
if (c.getLength() == 0)
return null;
Node item = c.item(0);
return item.getNodeValue();
}
return null;
}
public Vector<String> getAllValues(String tagname) {
Vector<String> v = new Vector<String>();
NodeList nodes = mDoc.getElementsByTagName(tagname);
for (int i = 0; i < nodes.getLength(); i++) {
Node n = nodes.item(i);
NodeList c = n.getChildNodes();
if (c.getLength() > 0) {
Node nn = c.item(0);
if (nn.getNodeType() == Node.TEXT_NODE)
v.addElement(nn.getNodeValue());
}
}
return v;
}
public Vector<String> getValuesFromContainer(Node container, String tagname) {
Vector<String> v = new Vector<String>();
NodeList c = container.getChildNodes();
int len = c.getLength();
for (int i = 0; i < len; i++) {
Node subchild = c.item(i);
if (subchild.getNodeName().equals(tagname)) {
NodeList grandchildren = subchild.getChildNodes();
if (grandchildren.getLength() > 0) {
Node grandchild = grandchildren.item(0);
if (grandchild.getNodeType() == Node.TEXT_NODE)
v.addElement(grandchild.getNodeValue());
}
}
}
return v;
}
public byte[] toByteArray() throws TransformerConfigurationException, TransformerException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
TransformerFactory tranFactory = TransformerFactory.newInstance();
Transformer aTransformer = tranFactory.newTransformer();
Source src = new DOMSource(mDoc);
Result dest = new StreamResult(bos);
aTransformer.transform(src, dest);
return bos.toByteArray();
}
public void output(OutputStream os)
throws TransformerConfigurationException, TransformerException {
TransformerFactory tranFactory = TransformerFactory.newInstance();
Transformer aTransformer = tranFactory.newTransformer();
Source src = new DOMSource(mDoc);
Result dest = new StreamResult(os);
aTransformer.transform(src, dest);
}
public String toXMLString() throws TransformerConfigurationException, TransformerException {
TransformerFactory tranFactory = TransformerFactory.newInstance();
Transformer transformer = tranFactory.newTransformer();
Source src = new DOMSource(mDoc);
StreamResult dest = new StreamResult(new StringWriter());
transformer.transform(src, dest);
String xmlString = dest.getWriter().toString();
return xmlString;
}
}
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