com.ngdata.hbaseindexer.rest.IndexerDefinitionMessageBodyWriter.java Source code

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Here is the source code for com.ngdata.hbaseindexer.rest.IndexerDefinitionMessageBodyWriter.java

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/*
 * Copyright 2013 NGDATA nv
 *
 * 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.ngdata.hbaseindexer.rest;

import com.ngdata.hbaseindexer.model.api.IndexerDefinition;
import com.ngdata.hbaseindexer.model.impl.IndexerDefinitionJsonSerDeser;
import org.apache.commons.io.IOUtils;

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

@Provider
public class IndexerDefinitionMessageBodyWriter implements MessageBodyWriter<IndexerDefinition> {

    @Override
    public long getSize(IndexerDefinition indexDefinition, Class<?> type, Type genericType,
            Annotation[] annotations, MediaType mediaType) {
        return -1;
    }

    @Override
    public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        if (IndexerDefinition.class.isAssignableFrom(type)
                && mediaType.isCompatible(MediaType.APPLICATION_JSON_TYPE)) {
            return true;
        }
        return false;
    }

    @Override
    public void writeTo(IndexerDefinition indexerDefinition, Class<?> type, Type genericType,
            Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, Object> httpHeaders,
            OutputStream outputStream) throws IOException, WebApplicationException {

        byte[] jsonBytes = IndexerDefinitionJsonSerDeser.INSTANCE.toJsonBytes(indexerDefinition);
        IOUtils.write(jsonBytes, outputStream);
    }
}