org.proton.plug.test.minimalserver.MinimalConnectionSPI.java Source code

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Here is the source code for org.proton.plug.test.minimalserver.MinimalConnectionSPI.java

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/**
 * 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.proton.plug.test.minimalserver;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

import io.netty.buffer.ByteBuf;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import org.proton.plug.AMQPConnectionContext;
import org.proton.plug.AMQPConnectionCallback;
import org.proton.plug.AMQPSessionCallback;
import org.proton.plug.ServerSASL;
import org.proton.plug.sasl.AnonymousServerSASL;
import org.proton.plug.sasl.ServerSASLPlain;
import org.proton.plug.util.ByteUtil;
import org.proton.plug.util.DebugInfo;
import org.proton.plug.util.ReusableLatch;

public class MinimalConnectionSPI implements AMQPConnectionCallback {
    Channel channel;

    private AMQPConnectionContext connection;

    public MinimalConnectionSPI(Channel channel) {
        this.channel = channel;
    }

    ExecutorService executorService = Executors.newSingleThreadExecutor();

    @Override
    public void close() {
        executorService.shutdown();
    }

    public void setConnection(AMQPConnectionContext connection) {
        this.connection = connection;
    }

    public AMQPConnectionContext getConnection() {
        return connection;
    }

    final ReusableLatch latch = new ReusableLatch(0);

    @Override
    public ServerSASL[] getSASLMechnisms() {
        return new ServerSASL[] { new AnonymousServerSASL(), new ServerSASLPlain() };
    }

    @Override
    public void onTransport(final ByteBuf bytes, final AMQPConnectionContext connection) {
        final int bufferSize = bytes.writerIndex();

        if (DebugInfo.debug) {
            // some debug
            byte[] frame = new byte[bytes.writerIndex()];
            int readerOriginalPos = bytes.readerIndex();

            bytes.getBytes(0, frame);

            try {
                System.err.println(
                        "Buffer Outgoing: " + "\n" + ByteUtil.formatGroup(ByteUtil.bytesToHex(frame), 4, 16));
            } catch (Exception e) {
                e.printStackTrace();
            }

            bytes.readerIndex(readerOriginalPos);
        }

        latch.countUp();
        // ^^ debug

        channel.writeAndFlush(bytes).addListener(new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                latch.countDown();

                //   https://issues.apache.org/jira/browse/PROTON-645
                //            connection.outputDone(bufferSize);
                //            if (connection.capacity() > 0)
                //            {
                //               channel.read();
                //            }
            }
        });

        channel.flush();

        if (connection.isSyncOnFlush()) {
            try {
                if (!latch.await(5, TimeUnit.SECONDS)) {
                    // TODO logs
                    System.err.println("Flush took longer than 5 seconds!!!");
                }
            } catch (Throwable e) {
                e.printStackTrace();
            }
        }
        connection.outputDone(bufferSize);

        //      if (connection.capacity() > 0)
        //      {
        //         channel.read();
        //      }
    }

    @Override
    public AMQPSessionCallback createSessionCallback(AMQPConnectionContext connection) {
        return new MinimalSessionSPI();
    }
}