1 files changed, 124 insertions, 0 deletions
diff --git a/java/client/src/main/java/org/apache/qpid/client/message/AbstractBytesMessage.java b/java/client/src/main/java/org/apache/qpid/client/message/AbstractBytesMessage.java
new file mode 100644
index 0000000000..3846ee043d
--- /dev/null
+++ b/java/client/src/main/java/org/apache/qpid/client/message/AbstractBytesMessage.java
@@ -0,0 +1,124 @@
+/*
+ *
+ * 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.client.message;
+
+import java.io.IOException;
+import java.nio.charset.Charset;
+
+import javax.jms.JMSException;
+import javax.jms.MessageEOFException;
+
+import org.apache.mina.common.ByteBuffer;
+
+import org.apache.qpid.AMQException;
+import org.apache.qpid.framing.AMQShortString;
+import org.apache.qpid.framing.BasicContentHeaderProperties;
+import org.apache.qpid.transport.util.Functions;
+
+/**
+ * @author Apache Software Foundation
+ */
+public abstract class AbstractBytesMessage extends AbstractJMSMessage
+{
+
+    /**
+     * The default initial size of the buffer. The buffer expands automatically.
+     */
+    private static final int DEFAULT_BUFFER_INITIAL_SIZE = 1024;
+
+    AbstractBytesMessage(AMQMessageDelegateFactory delegateFactory)
+    {
+        this(delegateFactory, null);
+    }
+
+    /**
+     * Construct a bytes message with existing data.
+     *
+     * @param delegateFactory
+     * @param data the data that comprises this message. If data is null, you get a 1024 byte buffer that is
+     */
+    AbstractBytesMessage(AMQMessageDelegateFactory delegateFactory, ByteBuffer data)
+    {
+        super(delegateFactory, data); // this instanties a content header
+        setContentType(getMimeType());
+
+        if (_data == null)
+        {
+            allocateInitialBuffer();
+        }
+    }
+
+    protected void allocateInitialBuffer()
+    {
+        _data = ByteBuffer.allocate(DEFAULT_BUFFER_INITIAL_SIZE);
+        _data.setAutoExpand(true);
+    }
+
+    AbstractBytesMessage(AMQMessageDelegate delegate, ByteBuffer data) throws AMQException
+     {
+         super(delegate, data);
+         setContentType(getMimeType());
+     }
+
+
+    public void clearBodyImpl() throws JMSException
+    {
+        allocateInitialBuffer();
+    }
+
+    public String toBodyString() throws JMSException
+    {          
+        try
+        {
+        	if (_data != null)
+        	{
+        		return Functions.str(_data.buf(), 100,0);
+        	}
+        	else
+        	{
+        		return "";
+        	}
+        	
+        }
+        catch (Exception e)
+        {
+            JMSException jmse = new JMSException(e.toString());
+            jmse.setLinkedException(e);
+            jmse.initCause(e);
+            throw jmse;
+        }
+        
+    }
+
+    /**
+     * Check that there is at least a certain number of bytes available to read
+     *
+     * @param len the number of bytes
+     * @throws javax.jms.MessageEOFException if there are less than len bytes available to read
+     */
+    protected void checkAvailable(int len) throws MessageEOFException
+    {
+        if (_data.remaining() < len)
+        {
+            throw new MessageEOFException("Unable to read " + len + " bytes");
+        }
+    }
+}