com.zoonies.cinc.resources.PojoMessageBodyWriter.java Source code

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Here is the source code for com.zoonies.cinc.resources.PojoMessageBodyWriter.java

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/*
 * Copyright (C) 2007-2014 Zoonies All rights reserved. 
 * ZOONIES PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package com.zoonies.cinc.resources;

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 com.fasterxml.jackson.databind.ObjectMapper;

/**
 * @author <a href="mailto:patrick@patrickauld.com">Patrick Auld</a>
 * Dec 6, 2014
 */
@Provider
@Produces({ MediaType.APPLICATION_JSON })
public class PojoMessageBodyWriter implements MessageBodyWriter<Object> {

    private final ObjectMapper mapper;

    public PojoMessageBodyWriter(ObjectMapper mapper) {
        super();
        this.mapper = mapper;
    }

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

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

    @Override
    public void writeTo(Object t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType,
            MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream)
            throws IOException, WebApplicationException {
        mapper.writeValue(entityStream, t);
        entityStream.flush();
    }

}