/**
* 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.cxf.jaxrs.provider;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import javax.ws.rs.Consumes;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import org.w3c.dom.Document;
import org.apache.cxf.jaxrs.ext.xml.XMLSource;
@Provider
@Produces({"application/xml", "application/*+xml", "text/xml" })
@Consumes({"application/xml", "application/*+xml", "text/xml", "text/html" })
public class SourceProvider implements
MessageBodyReader<Object>, MessageBodyWriter<Source> {
public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mt) {
return Source.class.isAssignableFrom(type);
}
public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mt) {
return Source.class.isAssignableFrom(type) || XMLSource.class.isAssignableFrom(type);
}
public Object readFrom(Class<Object> source, Type genericType, Annotation[] annotations, MediaType m,
MultivaluedMap<String, String> headers, InputStream is)
throws IOException {
if (DOMSource.class.isAssignableFrom(source)) {
Document doc = null;
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder;
try {
builder = factory.newDocumentBuilder();
doc = builder.parse(is);
} catch (Exception e) {
IOException ioex = new IOException("Problem creating a Source object");
ioex.setStackTrace(e.getStackTrace());
throw ioex;
}
return new DOMSource(doc);
} else if (StreamSource.class.isAssignableFrom(source)
|| Source.class.isAssignableFrom(source)) {
return new StreamSource(is);
} else if (XMLSource.class.isAssignableFrom(source)) {
return new XMLSource(is);
}
throw new IOException("Unrecognized source");
}
public void writeTo(Source source, Class<?> clazz, Type genericType, Annotation[] annotations,
MediaType m, MultivaluedMap<String, Object> headers, OutputStream os)
throws IOException {
StreamResult result = new StreamResult(os);
TransformerFactory tf = TransformerFactory.newInstance();
try {
Transformer t = tf.newTransformer();
t.transform(source, result);
} catch (TransformerException te) {
te.printStackTrace();
throw new WebApplicationException(te);
}
}
public long getSize(Source source, Class<?> type, Type genericType, Annotation[] annotations,
MediaType mt) {
return -1;
}
}