/*
* Copyright 1999-2004 The Apache Software Foundation
*
* 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 org.apache.coyote.memory;
import java.io.IOException;
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;
}
/**
* 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);
}
/**
* Hook to easily retrieve the protocol handler.
*/
protected static MemoryProtocolHandler protocolHandler = null;
public static MemoryProtocolHandler getProtocolHandler() {
return protocolHandler;
}
// ------------------------------------------------ ProtocolHandler Methods
/**
* Init the protocol.
*/
public void init()
throws Exception {
protocolHandler = this;
}
/**
* Start the protocol.
*/
public void start()
throws Exception {
}
public void pause()
throws Exception {
}
public void resume()
throws Exception {
}
public void destroy()
throws Exception {
protocolHandler = null;
}
// --------------------------------------------------------- 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();
}
}
}