org.sample.interceptor.MyServerWriterInterceptor.java Source code

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Here is the source code for org.sample.interceptor.MyServerWriterInterceptor.java

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/*
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 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
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 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
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 * file and include the License file at packager/legal/LICENSE.txt.
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 * GPL Classpath Exception:
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 *
 * Modifications:
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 * enclosed by brackets [] replaced by your own identifying information:
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package org.sample.interceptor;

import java.io.ByteArrayOutputStream;
import java.io.FilterOutputStream;
import java.io.IOException;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.ext.Provider;
import javax.ws.rs.ext.WriterInterceptor;
import javax.ws.rs.ext.WriterInterceptorContext;

/**
 * @author Arun Gupta
 */
@Provider
public class MyServerWriterInterceptor implements WriterInterceptor {

    @Override
    public void aroundWriteTo(WriterInterceptorContext wic) throws IOException, WebApplicationException {
        System.out.println("MyServerWriterInterceptor");
        wic.setOutputStream(new FilterOutputStream(wic.getOutputStream()) {

            final ByteArrayOutputStream baos = new ByteArrayOutputStream();

            @Override
            public void write(int b) throws IOException {
                baos.write(b);
                super.write(b);
            }

            @Override
            public void close() throws IOException {
                System.out.println("MyServerWriterInterceptor --> " + baos.toString());
                super.close();
            }
        });

        wic.proceed();
    }

}