package org.simantics.xml.sax.base;

import java.util.Collection;
import java.util.Set;

import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;

import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.Statement;
import org.simantics.db.exception.DatabaseException;

public class XMLNSElementWriter implements XMLElementWriter{
	
	XMLElementWriter writer;
	String ns;
	
	public XMLNSElementWriter(XMLElementWriter writer, String ns) {
		this.writer = writer;
		this.ns = ns;
	}
	
	@Override
	public void start(ReadGraph graph, WriterElement instance, XMLStreamWriter writer)
			throws XMLStreamException, DatabaseException {
		this.writer.start(graph, instance, writer);
		writer.writeNamespace("", ns);
	}
	
	@Override
	public void attributes(ReadGraph graph, WriterElement instance, Collection<Statement> attributes,
			XMLStreamWriter writer) throws XMLStreamException, DatabaseException {
		this.writer.attributes(graph, instance, attributes, writer);
	}
	
	@Override
	public void characters(ReadGraph graph, WriterElement instance, XMLStreamWriter writer)
			throws XMLStreamException, DatabaseException {
		this.writer.characters(graph, instance, writer);
	}
	
	@Override
	public void children(ReadGraph graph, WriterElement instance, Set<Resource> writer)
			throws XMLStreamException, DatabaseException {
		this.writer.children(graph, instance, writer);
	}
	
	@Override
	public void end(ReadGraph graph, WriterElement instance, XMLStreamWriter writer)
			throws XMLStreamException, DatabaseException {
		this.writer.end(graph, instance, writer);
	}
	
	@Override
	public String getElementId() {
		return writer.getElementId();
	}
	
	@Override
	public Resource getType(ReadGraph graph) throws DatabaseException {
		return writer.getType(graph);
	}
	
}