| /* |
| * Copyright 2010 The Apache Software Foundation |
| * |
| * 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.hadoop.hbase.rest.provider.producer; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.Type; |
| |
| 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.MessageBodyWriter; |
| import javax.ws.rs.ext.Provider; |
| |
| import org.apache.hadoop.hbase.rest.Constants; |
| |
| /** |
| * An adapter between Jersey and Object.toString(). Hooks up plain text output |
| * to the Jersey content handling framework. |
| * Jersey will first call getSize() to learn the number of bytes that will be |
| * sent, then writeTo to perform the actual I/O. |
| */ |
| @Provider |
| @Produces(Constants.MIMETYPE_TEXT) |
| public class PlainTextMessageBodyProducer |
| implements MessageBodyWriter<Object> { |
| |
| private ThreadLocal<byte[]> buffer = new ThreadLocal<byte[]>(); |
| |
| @Override |
| public boolean isWriteable(Class<?> arg0, Type arg1, Annotation[] arg2, |
| MediaType arg3) { |
| return true; |
| } |
| |
| @Override |
| public long getSize(Object object, Class<?> type, Type genericType, |
| Annotation[] annotations, MediaType mediaType) { |
| byte[] bytes = object.toString().getBytes(); |
| buffer.set(bytes); |
| return bytes.length; |
| } |
| |
| @Override |
| public void writeTo(Object object, Class<?> type, Type genericType, |
| Annotation[] annotations, MediaType mediaType, |
| MultivaluedMap<String, Object> httpHeaders, OutputStream outStream) |
| throws IOException, WebApplicationException { |
| byte[] bytes = buffer.get(); |
| outStream.write(bytes); |
| buffer.remove(); |
| } |
| } |