/*
* RHQ Management Platform
* Copyright (C) 2005-2011 Red Hat, Inc.
* All rights reserved.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.enterprise.server.sync.util;
import javax.xml.namespace.NamespaceContext;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
/**
*
*
* @author Lukas Krejci
*/
public class IndentingXMLStreamWriter implements XMLStreamWriter {
public static final String DEFAULT_INDENT_STRING = " ";
private int depth;
private XMLStreamWriter wrapped;
private String indentString;
private boolean seenData;
public IndentingXMLStreamWriter(XMLStreamWriter wrapped) {
this(wrapped, DEFAULT_INDENT_STRING);
}
public IndentingXMLStreamWriter(XMLStreamWriter wrapped, String indentString) {
this.wrapped = wrapped;
this.indentString = indentString;
}
private void onStartElement() throws XMLStreamException {
wrapped.writeCharacters("\n");
writeIndent();
++depth;
seenData = false;
}
private void onEndElement() throws XMLStreamException{
--depth;
if (!seenData) {
wrapped.writeCharacters("\n");
writeIndent();
}
seenData = false;
}
private void onEmptyElement() throws XMLStreamException {
seenData = false;
wrapped.writeCharacters("\n");
writeIndent();
}
private void writeIndent() throws XMLStreamException {
for(int i = 0; i < depth; ++i) {
wrapped.writeCharacters(indentString);
}
}
/**
* @param localName
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeStartElement(java.lang.String)
*/
public void writeStartElement(String localName) throws XMLStreamException {
onStartElement();
wrapped.writeStartElement(localName);
}
/**
* @param namespaceURI
* @param localName
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeStartElement(java.lang.String, java.lang.String)
*/
public void writeStartElement(String namespaceURI, String localName) throws XMLStreamException {
onStartElement();
wrapped.writeStartElement(namespaceURI, localName);
}
/**
* @param prefix
* @param localName
* @param namespaceURI
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeStartElement(java.lang.String, java.lang.String, java.lang.String)
*/
public void writeStartElement(String prefix, String localName, String namespaceURI) throws XMLStreamException {
onStartElement();
wrapped.writeStartElement(prefix, localName, namespaceURI);
}
/**
* @param namespaceURI
* @param localName
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeEmptyElement(java.lang.String, java.lang.String)
*/
public void writeEmptyElement(String namespaceURI, String localName) throws XMLStreamException {
onEmptyElement();
wrapped.writeEmptyElement(namespaceURI, localName);
}
/**
* @param prefix
* @param localName
* @param namespaceURI
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeEmptyElement(java.lang.String, java.lang.String, java.lang.String)
*/
public void writeEmptyElement(String prefix, String localName, String namespaceURI) throws XMLStreamException {
onEmptyElement();
wrapped.writeEmptyElement(prefix, localName, namespaceURI);
}
/**
* @param localName
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeEmptyElement(java.lang.String)
*/
public void writeEmptyElement(String localName) throws XMLStreamException {
onEmptyElement();
wrapped.writeEmptyElement(localName);
}
/**
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeEndElement()
*/
public void writeEndElement() throws XMLStreamException {
onEndElement();
wrapped.writeEndElement();
}
/**
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeEndDocument()
*/
public void writeEndDocument() throws XMLStreamException {
while (depth > 0) {
writeEndElement();
}
wrapped.writeEndDocument();
}
/**
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#close()
*/
public void close() throws XMLStreamException {
wrapped.close();
}
/**
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#flush()
*/
public void flush() throws XMLStreamException {
wrapped.flush();
}
/**
* @param localName
* @param value
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeAttribute(java.lang.String, java.lang.String)
*/
public void writeAttribute(String localName, String value) throws XMLStreamException {
wrapped.writeAttribute(localName, value);
}
/**
* @param prefix
* @param namespaceURI
* @param localName
* @param value
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeAttribute(java.lang.String, java.lang.String, java.lang.String, java.lang.String)
*/
public void writeAttribute(String prefix, String namespaceURI, String localName, String value)
throws XMLStreamException {
wrapped.writeAttribute(prefix, namespaceURI, localName, value);
}
/**
* @param namespaceURI
* @param localName
* @param value
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeAttribute(java.lang.String, java.lang.String, java.lang.String)
*/
public void writeAttribute(String namespaceURI, String localName, String value) throws XMLStreamException {
wrapped.writeAttribute(namespaceURI, localName, value);
}
/**
* @param prefix
* @param namespaceURI
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeNamespace(java.lang.String, java.lang.String)
*/
public void writeNamespace(String prefix, String namespaceURI) throws XMLStreamException {
wrapped.writeNamespace(prefix, namespaceURI);
}
/**
* @param namespaceURI
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeDefaultNamespace(java.lang.String)
*/
public void writeDefaultNamespace(String namespaceURI) throws XMLStreamException {
wrapped.writeDefaultNamespace(namespaceURI);
}
/**
* @param data
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeComment(java.lang.String)
*/
public void writeComment(String data) throws XMLStreamException {
wrapped.writeComment(data);
}
/**
* @param target
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeProcessingInstruction(java.lang.String)
*/
public void writeProcessingInstruction(String target) throws XMLStreamException {
wrapped.writeProcessingInstruction(target);
}
/**
* @param target
* @param data
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeProcessingInstruction(java.lang.String, java.lang.String)
*/
public void writeProcessingInstruction(String target, String data) throws XMLStreamException {
wrapped.writeProcessingInstruction(target, data);
}
/**
* @param data
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeCData(java.lang.String)
*/
public void writeCData(String data) throws XMLStreamException {
wrapped.writeCData(data);
seenData = true;
}
/**
* @param dtd
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeDTD(java.lang.String)
*/
public void writeDTD(String dtd) throws XMLStreamException {
writeIndent();
wrapped.writeDTD(dtd);
}
/**
* @param name
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeEntityRef(java.lang.String)
*/
public void writeEntityRef(String name) throws XMLStreamException {
wrapped.writeEntityRef(name);
}
/**
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeStartDocument()
*/
public void writeStartDocument() throws XMLStreamException {
wrapped.writeStartDocument();
}
/**
* @param version
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeStartDocument(java.lang.String)
*/
public void writeStartDocument(String version) throws XMLStreamException {
wrapped.writeStartDocument(version);
}
/**
* @param encoding
* @param version
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeStartDocument(java.lang.String, java.lang.String)
*/
public void writeStartDocument(String encoding, String version) throws XMLStreamException {
wrapped.writeStartDocument(encoding, version);
}
/**
* @param text
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeCharacters(java.lang.String)
*/
public void writeCharacters(String text) throws XMLStreamException {
wrapped.writeCharacters(text);
seenData = true;
}
/**
* @param text
* @param start
* @param len
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#writeCharacters(char[], int, int)
*/
public void writeCharacters(char[] text, int start, int len) throws XMLStreamException {
wrapped.writeCharacters(text, start, len);
seenData = true;
}
/**
* @param uri
* @return
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#getPrefix(java.lang.String)
*/
public String getPrefix(String uri) throws XMLStreamException {
return wrapped.getPrefix(uri);
}
/**
* @param prefix
* @param uri
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#setPrefix(java.lang.String, java.lang.String)
*/
public void setPrefix(String prefix, String uri) throws XMLStreamException {
wrapped.setPrefix(prefix, uri);
}
/**
* @param uri
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#setDefaultNamespace(java.lang.String)
*/
public void setDefaultNamespace(String uri) throws XMLStreamException {
wrapped.setDefaultNamespace(uri);
}
/**
* @param context
* @throws XMLStreamException
* @see javax.xml.stream.XMLStreamWriter#setNamespaceContext(javax.xml.namespace.NamespaceContext)
*/
public void setNamespaceContext(NamespaceContext context) throws XMLStreamException {
wrapped.setNamespaceContext(context);
}
/**
* @return
* @see javax.xml.stream.XMLStreamWriter#getNamespaceContext()
*/
public NamespaceContext getNamespaceContext() {
return wrapped.getNamespaceContext();
}
/**
* @param name
* @return
* @throws IllegalArgumentException
* @see javax.xml.stream.XMLStreamWriter#getProperty(java.lang.String)
*/
public Object getProperty(String name) throws IllegalArgumentException {
return wrapped.getProperty(name);
}
}