1 files changed, 289 insertions, 0 deletions
diff --git a/java/client/src/main/java/org/apache/qpid/client/message/JMSStreamMessage.java b/java/client/src/main/java/org/apache/qpid/client/message/JMSStreamMessage.java
new file mode 100644
index 0000000000..061b010a03
--- /dev/null
+++ b/java/client/src/main/java/org/apache/qpid/client/message/JMSStreamMessage.java
@@ -0,0 +1,289 @@
+/*
+ *
+ * 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 javax.jms.StreamMessage;
+import javax.jms.JMSException;
+import javax.jms.MessageFormatException;
+import java.nio.charset.Charset;
+import java.nio.charset.CharacterCodingException;
+
+/**
+ * @author Apache Software Foundation
+ */
+public class JMSStreamMessage extends AbstractBytesMessage implements StreamMessage
+{
+    private static final String MIME_TYPE="jms/stream-message";
+
+    private static final String[] _typeNames = {
+            "boolean",
+            "byte",
+            "short",
+            "char",
+            "int",
+            "long",
+            "float",
+            "double",
+            "utf string"};
+
+    private static final byte BOOLEAN_TYPE = (byte) 1;
+
+    private static final byte BYTE_TYPE = (byte) 2;
+
+    private static final byte SHORT_TYPE = (byte) 3;
+
+    private static final byte CHAR_TYPE = (byte) 4;
+
+    private static final byte INT_TYPE = (byte) 5;
+
+    private static final byte LONG_TYPE = (byte) 6;
+
+    private static final byte FLOAT_TYPE = (byte) 7;
+
+    private static final byte DOUBLE_TYPE = (byte) 8;
+
+    private static final byte STRING_TYPE = (byte) 9;
+
+    public String getMimeType()
+    {
+        return MIME_TYPE;
+    }
+
+    public boolean readBoolean() throws JMSException
+    {
+        checkReadable();
+        checkAvailable(2);
+        readAndCheckType(BOOLEAN_TYPE);
+        return _data.get() != 0;
+    }
+
+    private void readAndCheckType(byte type) throws MessageFormatException
+    {
+        if (_data.get() != type)
+        {
+            throw new MessageFormatException("Type " + _typeNames[type] + " not found next in stream");
+        }
+    }
+
+    private void writeTypeDiscriminator(byte type)
+    {
+        _data.put(type);
+    }
+
+    public byte readByte() throws JMSException
+    {
+        checkReadable();
+        checkAvailable(2);
+        readAndCheckType(BYTE_TYPE);
+        return _data.get();
+    }
+
+    public short readShort() throws JMSException
+    {
+        checkReadable();
+        checkAvailable(3);
+        readAndCheckType(SHORT_TYPE);
+        return _data.getShort();
+    }
+
+    /**
+     * Note that this method reads a unicode character as two bytes from the stream
+     *
+     * @return the character read from the stream
+     * @throws JMSException
+     */
+    public char readChar() throws JMSException
+    {
+        checkReadable();
+        checkAvailable(3);
+        readAndCheckType(CHAR_TYPE);
+        return _data.getChar();
+    }
+
+    public int readInt() throws JMSException
+    {
+        checkReadable();
+        checkAvailable(5);
+        readAndCheckType(INT_TYPE);
+        return _data.getInt();
+    }
+
+    public long readLong() throws JMSException
+    {
+        checkReadable();
+        checkAvailable(9);
+        readAndCheckType(LONG_TYPE);
+        return _data.getLong();
+    }
+
+    public float readFloat() throws JMSException
+    {
+        checkReadable();
+        checkAvailable(5);
+        readAndCheckType(FLOAT_TYPE);
+        return _data.getFloat();
+    }
+
+    public double readDouble() throws JMSException
+    {
+        checkReadable();
+        checkAvailable(9);
+        readAndCheckType(DOUBLE_TYPE);
+        return _data.getDouble();
+    }    
+
+    public String readString() throws JMSException
+    {
+        checkReadable();
+        // we check only for one byte plus the type byte since theoretically the string could be only a
+        // single byte when using UTF-8 encoding
+        checkAvailable(2);
+        readAndCheckType(STRING_TYPE);
+        try
+        {
+            return _data.getString(Charset.forName("UTF-8").newDecoder());
+        }
+        catch (CharacterCodingException e)
+        {
+            JMSException je = new JMSException("Error decoding byte stream as a UTF8 string: " + e);
+            je.setLinkedException(e);
+            throw je;
+        }
+    }
+
+    public int readBytes(byte[] bytes) throws JMSException
+    {
+        if (bytes == null)
+        {
+            throw new IllegalArgumentException("byte array must not be null");
+        }
+        checkReadable();
+        int count = (_data.remaining() >= bytes.length ? bytes.length : _data.remaining());
+        if (count == 0)
+        {
+            return -1;
+        }
+        else
+        {
+            _data.get(bytes, 0, count);
+            return count;
+        }
+    }
+
+    public Object readObject() throws JMSException
+    {
+        return null;
+    }
+
+    public void writeBoolean(boolean b) throws JMSException
+    {
+        checkWritable();
+        writeTypeDiscriminator(BOOLEAN_TYPE);
+        _data.put(b ? (byte) 1 : (byte) 0);
+    }
+
+    public void writeByte(byte b) throws JMSException
+    {
+        checkWritable();
+        writeTypeDiscriminator(BYTE_TYPE);
+        _data.put(b);
+    }
+
+    public void writeShort(short i) throws JMSException
+    {
+        checkWritable();
+        writeTypeDiscriminator(SHORT_TYPE);
+        _data.putShort(i);
+    }
+
+    public void writeChar(char c) throws JMSException
+    {
+        checkWritable();
+        writeTypeDiscriminator(CHAR_TYPE);
+        _data.putChar(c);
+    }
+
+    public void writeInt(int i) throws JMSException
+    {
+        checkWritable();
+        writeTypeDiscriminator(INT_TYPE);
+        _data.putInt(i);
+    }
+
+    public void writeLong(long l) throws JMSException
+    {
+        checkWritable();
+        writeTypeDiscriminator(LONG_TYPE);
+        _data.putLong(l);
+    }
+
+    public void writeFloat(float v) throws JMSException
+    {
+        checkWritable();
+        writeTypeDiscriminator(FLOAT_TYPE);
+        _data.putFloat(v);
+    }
+
+    public void writeDouble(double v) throws JMSException
+    {
+        checkWritable();
+        writeTypeDiscriminator(DOUBLE_TYPE);
+        _data.putDouble(v);
+    }
+
+    public void writeString(String string) throws JMSException
+    {
+        checkWritable();
+        writeTypeDiscriminator(STRING_TYPE);
+        try
+        {
+            _data.putString(string, Charset.forName("UTF-8").newEncoder());
+        }
+        catch (CharacterCodingException e)
+        {
+            JMSException ex = new JMSException("Unable to encode string: " + e);
+            ex.setLinkedException(e);
+            throw ex;
+        }
+    }
+
+    public void writeBytes(byte[] bytes) throws JMSException
+    {
+        checkWritable();
+        _data.put(bytes);
+    }
+
+    public void writeBytes(byte[] bytes, int offset, int length) throws JMSException
+    {
+        checkWritable();
+        _data.put(bytes, offset, length);
+    }
+
+    public void writeObject(Object object) throws JMSException
+    {
+        checkWritable();
+        if (object == null)
+        {
+            throw new NullPointerException("Argument must not be null");
+        }
+        _data.putObject(object);
+    }
+}