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Diffstat (limited to 'engine/src/networking/com/jme3/network/kernel/tcp/SocketConnector.java')
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diff --git a/engine/src/networking/com/jme3/network/kernel/tcp/SocketConnector.java b/engine/src/networking/com/jme3/network/kernel/tcp/SocketConnector.java
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+/*
+ * Copyright (c) 2011 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.jme3.network.kernel.tcp;
+
+import com.jme3.network.kernel.Connector;
+import com.jme3.network.kernel.ConnectorException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.InetAddress;
+import java.net.Socket;
+import java.net.SocketAddress;
+import java.nio.ByteBuffer;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+
+/**
+ * A straight forward socket-based connector implementation that
+ * does not use any separate threading. It relies completely on
+ * the buffering in the OS network layer.
+ *
+ * @version $Revision: 8843 $
+ * @author Paul Speed
+ */
+public class SocketConnector implements Connector
+{
+ private Socket sock;
+ private InputStream in;
+ private OutputStream out;
+ private SocketAddress remoteAddress;
+ private byte[] buffer = new byte[65535];
+ private AtomicBoolean connected = new AtomicBoolean(false);
+
+ public SocketConnector( InetAddress address, int port ) throws IOException
+ {
+ this.sock = new Socket(address, port);
+ remoteAddress = sock.getRemoteSocketAddress(); // for info purposes
+
+ // Disable Nagle's buffering so data goes out when we
+ // put it there.
+ sock.setTcpNoDelay(true);
+
+ in = sock.getInputStream();
+ out = sock.getOutputStream();
+
+ connected.set(true);
+ }
+
+ protected void checkClosed()
+ {
+ if( sock == null )
+ throw new ConnectorException( "Connection is closed:" + remoteAddress );
+ }
+
+ public boolean isConnected()
+ {
+ if( sock == null )
+ return false;
+ return sock.isConnected();
+ }
+
+ public void close()
+ {
+ checkClosed();
+ try {
+ Socket temp = sock;
+ sock = null;
+ connected.set(false);
+ temp.close();
+ } catch( IOException e ) {
+ throw new ConnectorException( "Error closing socket for:" + remoteAddress, e );
+ }
+ }
+
+ public boolean available()
+ {
+ checkClosed();
+ try {
+ return in.available() > 0;
+ } catch( IOException e ) {
+ throw new ConnectorException( "Error retrieving data availability for:" + remoteAddress, e );
+ }
+ }
+
+ public ByteBuffer read()
+ {
+ checkClosed();
+
+ try {
+ // Read what we can
+ int count = in.read(buffer);
+ if( count < 0 ) {
+ // Socket is closed
+ close();
+ return null;
+ }
+
+ // Wrap it in a ByteBuffer for the caller
+ return ByteBuffer.wrap( buffer, 0, count );
+ } catch( IOException e ) {
+ if( !connected.get() ) {
+ // Nothing to see here... just move along
+ return null;
+ }
+ throw new ConnectorException( "Error reading from connection to:" + remoteAddress, e );
+ }
+ }
+
+ public void write( ByteBuffer data )
+ {
+ checkClosed();
+
+ try {
+ out.write(data.array(), data.position(), data.remaining());
+ } catch( IOException e ) {
+ throw new ConnectorException( "Error writing to connection:" + remoteAddress, e );
+ }
+ }
+
+}