/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.databinding.fastinfoset;
import java.io.InputStream;
import java.io.OutputStream;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.apache.tuscany.sca.databinding.PushTransformer;
import org.apache.tuscany.sca.databinding.TransformationContext;
import org.apache.tuscany.sca.databinding.TransformationException;
import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
import com.sun.xml.fastinfoset.sax.SAXDocumentSerializer;
/**
* @version $Rev: 567205 $ $Date: 2007-08-17 19:11:13 -0700 (Fri, 17 Aug 2007) $
*/
public class XMLInputStream2FastInfoset extends BaseTransformer<InputStream, OutputStream> implements
PushTransformer<InputStream, OutputStream> {
@Override
protected Class getSourceType() {
return InputStream.class;
}
@Override
protected Class getTargetType() {
return OutputStream.class;
}
/**
* @see org.apache.tuscany.sca.databinding.PushTransformer#transform(java.lang.Object, java.lang.Object, org.apache.tuscany.sca.databinding.TransformationContext)
*/
public void transform(InputStream source, OutputStream target, TransformationContext context) {
try {
// Create Fast Infoset SAX serializer
SAXDocumentSerializer saxDocumentSerializer = new SAXDocumentSerializer();
// Set the output stream
saxDocumentSerializer.setOutputStream(target);
// Instantiate JAXP SAX parser factory
SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();
/* Set parser to be namespace aware
* Very important to do otherwise invalid FI documents will be
* created by the SAXDocumentSerializer
*/
saxParserFactory.setNamespaceAware(true);
// Instantiate the JAXP SAX parser
SAXParser saxParser = saxParserFactory.newSAXParser();
// Set the lexical handler
saxParser.setProperty("http://xml.org/sax/properties/lexical-handler", saxDocumentSerializer);
// Parse the XML document and convert to a fast infoset document
saxParser.parse(source, saxDocumentSerializer);
} catch (Exception e) {
throw new TransformationException(e);
}
}
public int getWeight() {
return 20;
}
@Override
public String getTargetDataBinding() {
return "xml:fastinfoset:java.io.OutputStream";
}
}