com.netflix.discovery.converters.EntityBodyConverter Maven / Gradle / Ivy
/*
* Copyright 2012 Netflix, Inc.
*
* Licensed 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 com.netflix.discovery.converters;
import javax.ws.rs.core.MediaType;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import com.netflix.discovery.provider.ISerializer;
import com.thoughtworks.xstream.XStream;
/**
* A custom jersey provider implementation for eureka.
*
*
* The implementation uses Xstream to provide
* serialization/deserialization capabilities. If the users to wish to provide
* their own implementation they can do so by plugging in their own provider
* here and annotating their classes with that provider by specifying the
* {@link com.netflix.discovery.provider.Serializer} annotation.
*
*
* @author Karthik Ranganathan, Greg Kim.
*
*/
public class EntityBodyConverter implements ISerializer {
private static final String XML = "xml";
private static final String JSON = "json";
/*
* (non-Javadoc)
*
* @see com.netflix.discovery.provider.ISerializer#read(java.io.InputStream,
* java.lang.Class, javax.ws.rs.core.MediaType)
*/
public Object read(InputStream is, Class type, MediaType mediaType)
throws IOException {
XStream xstream = getXStreamInstance(mediaType);
if (xstream != null) {
return xstream.fromXML(is);
} else {
throw new IllegalArgumentException("Content-type: "
+ mediaType.getType() + " is currently not supported for "
+ type.getName());
}
}
/*
* (non-Javadoc)
*
* @see com.netflix.discovery.provider.ISerializer#write(java.lang.Object,
* java.io.OutputStream, javax.ws.rs.core.MediaType)
*/
public void write(Object object, OutputStream os, MediaType mediaType)
throws IOException {
XStream xstream = getXStreamInstance(mediaType);
if (xstream != null) {
xstream.toXML(object, os);
} else {
throw new IllegalArgumentException("Content-type: "
+ mediaType.getType() + " is currently not supported for "
+ object.getClass().getName());
}
}
private XStream getXStreamInstance(MediaType mediaType) {
XStream xstream = null;
if (JSON.equalsIgnoreCase(mediaType.getSubtype())) {
xstream = JsonXStream.getInstance();
} else if (XML.equalsIgnoreCase(mediaType.getSubtype())) {
xstream = XmlXStream.getInstance();
}
return xstream;
}
}