ContentTypeModifyingMBW.java

/**
 * 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.systest.jaxrs;

import java.io.IOException;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;

import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyWriter;

public class ContentTypeModifyingMBW implements MessageBodyWriter<String> {

    @Override
    public long getSize(String arg0, Class<?> arg1, Type arg2, Annotation[] arg3, MediaType arg4) {
        return -1;
    }

    @Override
    public boolean isWriteable(Class<?> arg0, Type arg1, Annotation[] arg2, MediaType mt) {
        return mt.toString().equals("text/custom");
    }

    @Override
    public void writeTo(String str, Class<?> arg1, Type arg2, Annotation[] arg3, MediaType mt,
                        MultivaluedMap<String, Object> headers, OutputStream os) throws IOException,
        WebApplicationException {
        headers.putSingle("Content-Type", mt.toString() + ";charset=us-ascii");
        headers.putSingle("CustomHeader", "CustomValue");
        os.write(str.getBytes());
    }

}