| /* |
| * 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.mina.core.nio.tcp; |
| |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.mina.api.AbstractIoHandler; |
| import org.apache.mina.api.IdleStatus; |
| import org.apache.mina.api.IoService; |
| import org.apache.mina.api.IoSession; |
| import org.apache.mina.core.BenchmarkServer; |
| import org.apache.mina.core.CounterFilter; |
| import org.apache.mina.session.AttributeKey; |
| import org.apache.mina.transport.nio.FixedSelectorLoopPool; |
| import org.apache.mina.transport.nio.NioTcpServer; |
| |
| /** |
| * A MINA 3 TCP Server. |
| * @author <a href="http://mina.apache.org">Apache MINA Project</a> |
| */ |
| public class Mina3TcpBenchmarkServer implements BenchmarkServer { |
| |
| private static enum State { |
| WAIT_FOR_FIRST_BYTE_LENGTH, WAIT_FOR_SECOND_BYTE_LENGTH, WAIT_FOR_THIRD_BYTE_LENGTH, WAIT_FOR_FOURTH_BYTE_LENGTH, READING |
| } |
| |
| private static final ByteBuffer ACK = ByteBuffer.allocate(1); |
| |
| static { |
| ACK.put((byte) 0); |
| ACK.rewind(); |
| } |
| |
| private static final AttributeKey<State> STATE_ATTRIBUTE = new AttributeKey<State>(State.class, |
| Mina3TcpBenchmarkServer.class.getName() + ".state"); |
| |
| private static final AttributeKey<Integer> LENGTH_ATTRIBUTE = new AttributeKey<Integer>(Integer.class, |
| Mina3TcpBenchmarkServer.class.getName() + ".length"); |
| |
| private NioTcpServer tcpServer; |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void start(int port) throws IOException { |
| tcpServer = new NioTcpServer(new FixedSelectorLoopPool("Server", 1), null); |
| tcpServer.getSessionConfig().setReadBufferSize(128 * 1024); |
| tcpServer.getSessionConfig().setTcpNoDelay(true); |
| tcpServer.setIoHandler(new AbstractIoHandler() { |
| public void sessionOpened(IoSession session) { |
| session.setAttribute(STATE_ATTRIBUTE, State.WAIT_FOR_FIRST_BYTE_LENGTH); |
| } |
| |
| public void messageReceived(IoSession session, Object message) { |
| if (message instanceof ByteBuffer) { |
| ByteBuffer buffer = (ByteBuffer) message; |
| |
| State state = session.getAttribute(STATE_ATTRIBUTE); |
| int length = 0; |
| |
| if (session.getAttribute(LENGTH_ATTRIBUTE) != null) { |
| length = session.getAttribute(LENGTH_ATTRIBUTE); |
| } |
| |
| while (buffer.remaining() > 0) { |
| switch (state) { |
| case WAIT_FOR_FIRST_BYTE_LENGTH: |
| length = (buffer.get() & 255) << 24; |
| state = State.WAIT_FOR_SECOND_BYTE_LENGTH; |
| break; |
| case WAIT_FOR_SECOND_BYTE_LENGTH: |
| length += (buffer.get() & 255) << 16; |
| state = State.WAIT_FOR_THIRD_BYTE_LENGTH; |
| break; |
| case WAIT_FOR_THIRD_BYTE_LENGTH: |
| length += (buffer.get() & 255) << 8; |
| state = State.WAIT_FOR_FOURTH_BYTE_LENGTH; |
| break; |
| case WAIT_FOR_FOURTH_BYTE_LENGTH: |
| length += (buffer.get() & 255); |
| state = State.READING; |
| if ((length == 0) && (buffer.remaining() == 0)) { |
| session.write(ACK.slice()); |
| state = State.WAIT_FOR_FIRST_BYTE_LENGTH; |
| } |
| break; |
| case READING: |
| int remaining = buffer.remaining(); |
| if (length > remaining) { |
| length -= remaining; |
| buffer.position(buffer.position() + remaining); |
| } else { |
| buffer.position(buffer.position() + length); |
| session.write(ACK.slice()); |
| state = State.WAIT_FOR_FIRST_BYTE_LENGTH; |
| length = 0; |
| } |
| } |
| } |
| session.setAttribute(LENGTH_ATTRIBUTE, length); |
| session.setAttribute(STATE_ATTRIBUTE, state); |
| } |
| } |
| |
| public void exceptionCaught(IoSession session, Exception cause) { |
| cause.printStackTrace(); |
| } |
| |
| @Override |
| public void sessionClosed(IoSession session) { |
| } |
| |
| @Override |
| public void sessionIdle(IoSession session, IdleStatus status) { |
| } |
| |
| @Override |
| public void messageSent(IoSession session, Object message) { |
| CounterFilter.messageSent.getAndIncrement(); |
| } |
| |
| @Override |
| public void serviceActivated(IoService service) { |
| } |
| |
| @Override |
| public void serviceInactivated(IoService service) { |
| } |
| }); |
| |
| tcpServer.bind(new InetSocketAddress(port)); |
| } |
| |
| /** |
| * {@inheritedDoc} |
| */ |
| public void stop() throws IOException { |
| tcpServer.unbind(); |
| } |
| } |