Tomcat example source code file (MemoryProtocolHandler.java)

This example Tomcat source code file (MemoryProtocolHandler.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Tomcat tags/keywords

adapter, bytechunk, bytechunk, bytechunkinputbuffer, bytechunkinputbuffer, bytechunkoutputbuffer, bytechunkoutputbuffer, exception, exception, inputbuffer, io, ioexception, object, outputbuffer, response, util

The Tomcat MemoryProtocolHandler.java source code

/*
 *  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.coyote.memory;

import java.io.IOException;
import java.util.Iterator;
import org.apache.tomcat.util.buf.ByteChunk;

import org.apache.coyote.Adapter;
import org.apache.coyote.InputBuffer;
import org.apache.coyote.OutputBuffer;
import org.apache.coyote.ProtocolHandler;
import org.apache.coyote.Request;
import org.apache.coyote.Response;


/**
 * Abstract the protocol implementation, including threading, etc.
 * Processor is single threaded and specific to stream-based protocols,
 * will not fit Jk protocols like JNI.
 *
 * @author Remy Maucherat
 */
public class MemoryProtocolHandler
    implements ProtocolHandler {


    // ------------------------------------------------------------- Properties


    /**
     * Pass config info.
     */
    public void setAttribute(String name, Object value) {
    }

    public Object getAttribute(String name) {
        return null;
    }

    public Iterator getAttributeNames() { return null ; }
    /**
     * Associated adapter.
     */
    protected Adapter adapter = null;

    /**
     * The adapter, used to call the connector.
     */
    public void setAdapter(Adapter adapter) {
        this.adapter = adapter;
    }

    public Adapter getAdapter() {
        return (adapter);
    }


    // ------------------------------------------------ ProtocolHandler Methods


    /**
     * Init the protocol.
     */
    public void init()
        throws Exception {
    }


    /**
     * Start the protocol.
     */
    public void start()
        throws Exception {
    }


    public void pause() 
        throws Exception {
    }

    public void resume() 
        throws Exception {
    }

    public void destroy()
        throws Exception {
    }


    // --------------------------------------------------------- Public Methods


    /**
     * Process specified request.
     */
    public void process(Request request, ByteChunk input,
                        Response response, ByteChunk output)
        throws Exception {

        InputBuffer inputBuffer = new ByteChunkInputBuffer(input);
        OutputBuffer outputBuffer = new ByteChunkOutputBuffer(output);
        request.setInputBuffer(inputBuffer);
        response.setOutputBuffer(outputBuffer);

        adapter.service(request, response);

    }


    // --------------------------------------------- ByteChunkInputBuffer Class


    protected class ByteChunkInputBuffer
        implements InputBuffer {

        protected ByteChunk input = null;

        public ByteChunkInputBuffer(ByteChunk input) {
            this.input = input;
        }

        public int doRead(ByteChunk chunk, Request request) 
            throws IOException {
            return input.substract(chunk);
        }

    }


    // -------------------------------------------- ByteChunkOuptutBuffer Class


    protected class ByteChunkOutputBuffer
        implements OutputBuffer {

        protected ByteChunk output = null;

        public ByteChunkOutputBuffer(ByteChunk output) {
            this.output = output;
        }

        public int doWrite(ByteChunk chunk, Response response) 
            throws IOException {
            output.append(chunk);
            return chunk.getLength();
        }

    }


}