1 files changed, 176 insertions, 0 deletions
diff --git a/java/common/src/main/java/org/apache/qpid/transport/Channel.java b/java/common/src/main/java/org/apache/qpid/transport/Channel.java
new file mode 100644
index 0000000000..d6b015930b
--- /dev/null
+++ b/java/common/src/main/java/org/apache/qpid/transport/Channel.java
@@ -0,0 +1,176 @@
+/*
+ *
+ * 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;
+
+import org.apache.qpid.transport.network.Frame;
+import org.apache.qpid.transport.util.Logger;
+
+import java.nio.ByteBuffer;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+import static org.apache.qpid.transport.network.Frame.*;
+import static org.apache.qpid.transport.util.Functions.*;
+
+
+/**
+ * Channel
+ *
+ * @author Rafael H. Schloming
+ */
+
+public class Channel extends Invoker
+    implements Receiver<ProtocolEvent>, ProtocolDelegate<Void>
+{
+
+    private static final Logger log = Logger.get(Channel.class);
+
+    final private Connection connection;
+    final private int channel;
+    final private MethodDelegate<Channel> delegate;
+    final private SessionDelegate sessionDelegate;
+    // session may be null
+    private Session session;
+
+    public Channel(Connection connection, int channel, SessionDelegate delegate)
+    {
+        this.connection = connection;
+        this.channel = channel;
+        this.delegate = new ChannelDelegate();
+        this.sessionDelegate = delegate;
+    }
+
+    public Connection getConnection()
+    {
+        return connection;
+    }
+
+    public void received(ProtocolEvent event)
+    {
+        event.delegate(null, this);
+    }
+
+    public void init(Void v, ProtocolHeader hdr)
+    {
+        connection.getConnectionDelegate().init(this, hdr);
+    }
+
+    public void control(Void v, Method method)
+    {
+        switch (method.getEncodedTrack())
+        {
+        case L1:
+            method.dispatch(this, connection.getConnectionDelegate());
+            break;
+        case L2:
+            method.dispatch(this, delegate);
+            break;
+        case L3:
+            method.delegate(session, sessionDelegate);
+            break;
+        default:
+            throw new IllegalStateException
+                ("unknown track: " + method.getEncodedTrack());
+        }
+    }
+
+    public void command(Void v, Method method)
+    {
+        method.delegate(session, sessionDelegate);
+    }
+
+    public void error(Void v, ProtocolError error)
+    {
+        throw new RuntimeException(error.getMessage());
+    }
+
+    public void exception(Throwable t)
+    {
+        session.exception(t);
+    }
+
+    public void closed()
+    {
+        log.debug("channel closed: ", this);
+        if (session != null)
+        {
+            session.closed();
+        }
+        connection.removeChannel(channel);
+    }
+
+    public int getEncodedChannel() {
+        return channel;
+    }
+
+    public Session getSession()
+    {
+        return session;
+    }
+
+    void setSession(Session session)
+    {
+        this.session = session;
+    }
+
+    void closeCode(ConnectionClose close)
+    {
+        if (session != null)
+        {
+            session.closeCode(close);
+        }
+    }
+
+    private void emit(ProtocolEvent event)
+    {
+        event.setChannel(channel);
+        connection.send(event);
+    }
+
+    public void method(Method m)
+    {
+        emit(m);
+
+        if (!m.isBatch())
+        {
+            connection.flush();
+        }
+    }
+
+    protected void invoke(Method m)
+    {
+        method(m);
+    }
+
+    protected <T> Future<T> invoke(Method m, Class<T> cls)
+    {
+        throw new UnsupportedOperationException();
+    }
+
+    public String toString()
+    {
+        return String.format("%s:%s", connection, channel);
+    }
+
+}