provider-rs/src/test/java/org/apache/cxf/dosgi/dsw/handlers/rest/provider/MyWriter.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.dosgi.dsw.handlers.rest.provider;

import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
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;
import javax.ws.rs.ext.Provider;

import org.osgi.service.component.annotations.Component;

@Component//
(//
    immediate = true, //
    property = //
    {
     "org.apache.cxf.dosgi.IntentName=mytask", //
    } //
)
@Provider
public class MyWriter implements MessageBodyWriter<Task> {

    @Override
    public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations,
                               MediaType mediaType) {
        return type == Task.class;
    }

    @Override
    public long getSize(Task t, Class<?> type, Type genericType, Annotation[] annotations,
                        MediaType mediaType) {
        return 0;
    }

    @Override
    public void writeTo(Task t, Class<?> type, Type genericType, Annotation[] annotations,
                        MediaType mediaType, MultivaluedMap<String, Object> httpHeaders,
                        OutputStream entityStream)
        throws IOException, WebApplicationException {
        try (OutputStreamWriter writer = new OutputStreamWriter(entityStream)) {
            writer.write(t.getName());
        }

    }

}