/**
*
*/
package net.sf.jasperreports.engine.util.xml;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.util.JRXmlUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.SAXException;
/**
* Produces a <code>org.w3c.dom.Document</code> based on a <code>java.io.File</code>, <code>java.io.InputStream</code> or a <code>java.lang.String</code> uri
*
* @author Narcis Marcu (narcism@users.sourceforge.net)
* @version $Id: JRXmlDocumentProducer.java 4147 2011-01-17 09:23:18Z narcism $
*/
public class JRXmlDocumentProducer {
private File file;
private InputStream inputStream;
private String uri;
private DocumentBuilderFactory documentBuilderFactory;
public JRXmlDocumentProducer() {
}
public JRXmlDocumentProducer(File file) {
this.file = file;
}
public JRXmlDocumentProducer(InputStream inputStream) {
this.inputStream = inputStream;
}
public JRXmlDocumentProducer(String uri) {
this.uri = uri;
}
public DocumentBuilderFactory getDocumentBuilderFactory() {
return documentBuilderFactory;
}
public void setDocumentBuilderFactory(DocumentBuilderFactory documentBuilderFactory) {
this.documentBuilderFactory = documentBuilderFactory;
}
public void setFile(File file) {
this.file = file;
}
public void setInputStream(InputStream inputStream) {
this.inputStream = inputStream;
}
public void setUri(String uri) {
this.uri = uri;
}
public Document getDocument() throws JRException {
try {
if (file != null) {
return getDocumentBuilder().parse(file);
} else if (inputStream != null ) {
return getDocumentBuilder().parse(inputStream);
} else if (uri != null) {
return getDocumentBuilder().parse(uri);
}
} catch (SAXException e) {
throw new JRException("Failed to parse the xml document", e);
} catch (IOException e) {
throw new JRException("Failed to parse the xml document", e);
}
return null;
}
public Document getDocument(Node sourceNode) throws JRException {
Document doc = getDocumentBuilder().newDocument();
Node source;
if (sourceNode.getNodeType() == Node.DOCUMENT_NODE) {
source = ((Document) sourceNode).getDocumentElement();
} else {
source = sourceNode;
}
Node node = doc.importNode(source, true);
doc.appendChild(node);
return doc;
}
protected DocumentBuilder getDocumentBuilder() throws JRException {
try{
if (documentBuilderFactory != null) {
return documentBuilderFactory.newDocumentBuilder();
} else {
return JRXmlUtils.createDocumentBuilder();
}
} catch (ParserConfigurationException e)
{
throw new JRException("Failed to create a document builder", e);
}
}
}