1 files changed, 101 insertions, 0 deletions
diff --git a/qpid/java/common/src/main/java/org/apache/qpid/transport/network/io/IoNetworkHandler.java b/qpid/java/common/src/main/java/org/apache/qpid/transport/network/io/IoNetworkHandler.java
new file mode 100644
index 0000000000..a0ca358a13
--- /dev/null
+++ b/qpid/java/common/src/main/java/org/apache/qpid/transport/network/io/IoNetworkHandler.java
@@ -0,0 +1,101 @@
+/*
+ *
+ * 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.qpid.transport.network.io;
+
+import java.io.InputStream;
+import java.net.Socket;
+import java.net.SocketException;
+import java.nio.ByteBuffer;
+
+import org.apache.qpid.transport.Receiver;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * IoNetworkHandler handles incoming data and sends it to the {@link Receiver}.
+ */
+public class IoNetworkHandler implements Runnable
+{
+    private static final Logger _log = LoggerFactory.getLogger(IoNetworkHandler.class);
+
+    private final Receiver<ByteBuffer> _receiver;
+    private final int _bufSize;
+    private final Socket _socket;
+    private final boolean _shutdownBroken = ((String) System.getProperties().get("os.name")).matches("(?i).*windows.*");
+
+    public IoNetworkHandler(Socket socket, Receiver<ByteBuffer> receiver, int bufSize)
+    {
+        _socket = socket;
+        _receiver = receiver;
+        _bufSize = bufSize;
+    }
+
+    public void run()
+    {
+        final int threshold = _bufSize / 2;
+
+        // I set the read buffer size simillar to SO_RCVBUF
+        // Haven't tested with a lower value to see if it's better or worse
+        byte[] buffer = new byte[_bufSize];
+        try
+        {
+            InputStream in = _socket.getInputStream();
+            int read = 0;
+            int offset = 0;
+            while ((read = in.read(buffer, offset, _bufSize - offset)) != -1)
+            {
+                if (read > 0)
+                {
+                    ByteBuffer b = ByteBuffer.wrap(buffer,offset,read);
+                    _receiver.received(b);
+                    offset+=read;
+                    if (offset > threshold)
+                    {
+                        offset = 0;
+                        buffer = new byte[_bufSize];
+                    }
+                }
+            }
+        }
+        catch (Throwable t)
+        {
+            if (!(_shutdownBroken &&
+                  t instanceof SocketException &&
+                  t.getMessage().equalsIgnoreCase("socket closed") &&
+                  _socket.isClosed()) && _socket.isConnected())
+            {
+                _receiver.exception(t);
+            }
+        }
+        finally
+        {
+            _receiver.closed();
+            try
+            {
+                _socket.close();
+            }
+            catch(Exception e)
+            {
+                _log.error("Error closing socket", e);
+            }
+        }
+    }
+}