1 files changed, 123 insertions, 0 deletions
diff --git a/qpid/java/common/src/main/java/org/apache/qpid/transport/ProtocolHeader.java b/qpid/java/common/src/main/java/org/apache/qpid/transport/ProtocolHeader.java
new file mode 100644
index 0000000000..e5b93e40a9
--- /dev/null
+++ b/qpid/java/common/src/main/java/org/apache/qpid/transport/ProtocolHeader.java
@@ -0,0 +1,123 @@
+/*
+ *
+ * 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 java.nio.ByteBuffer;
+
+import org.apache.qpid.transport.network.NetworkDelegate;
+import org.apache.qpid.transport.network.NetworkEvent;
+import org.apache.qpid.transport.network.Frame;
+
+
+/**
+ * ProtocolHeader
+ *
+ * @author Rafael H. Schloming
+ */
+
+public final class ProtocolHeader implements NetworkEvent, ProtocolEvent
+{
+
+    private static final byte[] AMQP = {'A', 'M', 'Q', 'P' };
+    private static final byte CLASS = 1;
+
+    final private byte protoClass;
+    final private byte instance;
+    final private byte major;
+    final private byte minor;
+    private int channel;
+
+    public ProtocolHeader(byte protoClass, byte instance, byte major, byte minor)
+    {
+        this.protoClass = protoClass;
+        this.instance = instance;
+        this.major = major;
+        this.minor = minor;
+    }
+
+    public ProtocolHeader(int instance, int major, int minor)
+    {
+        this(CLASS, (byte) instance, (byte) major, (byte) minor);
+    }
+
+    public byte getInstance()
+    {
+        return instance;
+    }
+
+    public byte getMajor()
+    {
+        return major;
+    }
+
+    public byte getMinor()
+    {
+        return minor;
+    }
+
+    public int getChannel()
+    {
+        return channel;
+    }
+
+    public void setChannel(int channel)
+    {
+        this.channel = channel;
+    }
+
+    public byte getEncodedTrack()
+    {
+        return Frame.L1;
+    }
+
+    public boolean isConnectionControl()
+    {
+        return false;
+    }
+
+    public ByteBuffer toByteBuffer()
+    {
+        ByteBuffer buf = ByteBuffer.allocate(8);
+        buf.put(AMQP);
+        buf.put(protoClass);
+        buf.put(instance);
+        buf.put(major);
+        buf.put(minor);
+        buf.flip();
+        return buf;
+    }
+
+    public <C> void delegate(C context, ProtocolDelegate<C> delegate)
+    {
+        delegate.init(context, this);
+    }
+
+    public void delegate(NetworkDelegate delegate)
+    {
+        delegate.init(this);
+    }
+
+    public String toString()
+    {
+        return String.format("AMQP.%d %d-%d", instance, major, minor);
+    }
+
+}