Move adsal into its own subdirectory.

[controller.git] / opendaylight / protocol_plugins / openflow / src / main / java / org / opendaylight / controller / protocol_plugin / openflow / core / internal / MessageReadWriteService.java

diff --git a/opendaylight/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/core/internal/MessageReadWriteService.java b/opendaylight/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/core/internal/MessageReadWriteService.java
deleted file mode 100644 (file)
index 9041004..0000000
--- a/opendaylight/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/core/internal/MessageReadWriteService.java
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-
-package org.opendaylight.controller.protocol_plugin.openflow.core.internal;
-
-import java.nio.ByteBuffer;
-import java.nio.channels.AsynchronousCloseException;
-import java.nio.channels.ClosedChannelException;
-import java.nio.channels.SelectionKey;
-import java.nio.channels.Selector;
-import java.nio.channels.SocketChannel;
-import java.util.List;
-
-import org.opendaylight.controller.protocol_plugin.openflow.core.IMessageReadWrite;
-import org.openflow.protocol.OFMessage;
-import org.openflow.protocol.factory.BasicFactory;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * This class implements methods to read/write messages over an established
- * socket channel. The data exchange is in clear text format.
- */
-public class MessageReadWriteService implements IMessageReadWrite {
-    private static final Logger logger = LoggerFactory
-            .getLogger(MessageReadWriteService.class);
-    private static final int bufferSize = 1024 * 1024;
-
-    private Selector selector;
-    private SelectionKey clientSelectionKey;
-    private SocketChannel socket;
-    private ByteBuffer inBuffer;
-    private ByteBuffer outBuffer;
-    private BasicFactory factory;
-
-    public MessageReadWriteService(SocketChannel socket, Selector selector)
-            throws ClosedChannelException {
-        this.socket = socket;
-        this.selector = selector;
-        this.factory = new BasicFactory();
-        this.inBuffer = ByteBuffer.allocateDirect(bufferSize);
-        this.outBuffer = ByteBuffer.allocateDirect(bufferSize);
-        this.clientSelectionKey = this.socket.register(this.selector,
-                SelectionKey.OP_READ);
-    }
-
-    /**
-     * Sends the OF message out over the socket channel.
-     *
-     * @param msg
-     *            OF message to be sent
-     * @throws Exception
-     */
-    @Override
-    public void asyncSend(OFMessage msg) throws Exception {
-        synchronized (outBuffer) {
-            int msgLen = msg.getLengthU();
-            if (outBuffer.remaining() < msgLen) {
-                // increase the buffer size so that it can contain this message
-                ByteBuffer newBuffer = ByteBuffer.allocateDirect(outBuffer
-                        .capacity() + msgLen);
-                outBuffer.flip();
-                newBuffer.put(outBuffer);
-                outBuffer = newBuffer;
-            }
-        }
-        synchronized (outBuffer) {
-            msg.writeTo(outBuffer);
-
-            if (!socket.isOpen()) {
-                return;
-            }
-
-            outBuffer.flip();
-            socket.write(outBuffer);
-            outBuffer.compact();
-            if (outBuffer.position() > 0) {
-                this.clientSelectionKey = this.socket.register(this.selector,
-                        SelectionKey.OP_WRITE, this);
-            }
-            logger.trace("Message sent: {}", msg);
-        }
-    }
-
-    /**
-     * Resumes sending the remaining messages in the outgoing buffer
-     *
-     * @throws Exception
-     */
-    @Override
-    public void resumeSend() throws Exception {
-        synchronized (outBuffer) {
-            if (!socket.isOpen()) {
-                return;
-            }
-
-            outBuffer.flip();
-            socket.write(outBuffer);
-            outBuffer.compact();
-            if (outBuffer.position() > 0) {
-                this.clientSelectionKey = this.socket.register(this.selector,
-                        SelectionKey.OP_WRITE, this);
-            } else {
-                this.clientSelectionKey = this.socket.register(this.selector,
-                        SelectionKey.OP_READ, this);
-            }
-        }
-    }
-
-    /**
-     * Reads the incoming network data from the socket and retrieves the OF
-     * messages.
-     *
-     * @return list of OF messages
-     * @throws Exception
-     */
-    @Override
-    public List<OFMessage> readMessages() throws Exception {
-        if (!socket.isOpen()) {
-            return null;
-        }
-
-        List<OFMessage> msgs = null;
-        int bytesRead = -1;
-        bytesRead = socket.read(inBuffer);
-        if (bytesRead < 0) {
-            throw new AsynchronousCloseException();
-        }
-
-        try {
-            inBuffer.flip();
-            msgs = factory.parseMessages(inBuffer);
-            if (inBuffer.hasRemaining()) {
-                inBuffer.compact();
-            } else {
-                inBuffer.clear();
-            }
-        } catch (Exception e) {
-            inBuffer.clear();
-            logger.debug("Caught exception: ", e);
-        }
-        return msgs;
-    }
-
-    @Override
-    public void stop() {
-        inBuffer = null;
-        outBuffer = null;
-    }
-}