| /* |
| * |
| * 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.nio.CharBuffer; |
| import java.nio.charset.CharacterCodingException; |
| import java.nio.charset.Charset; |
| import java.nio.charset.CharsetDecoder; |
| import java.nio.charset.CharsetEncoder; |
| |
| import javax.jms.BytesMessage; |
| import javax.jms.JMSException; |
| import javax.jms.MessageFormatException; |
| |
| import org.apache.mina.common.ByteBuffer; |
| import org.apache.qpid.AMQException; |
| import org.apache.qpid.framing.AMQShortString; |
| import org.apache.qpid.framing.BasicContentHeaderProperties; |
| |
| public class JMSBytesMessage extends AbstractBytesMessage implements BytesMessage |
| { |
| public static final String MIME_TYPE = "application/octet-stream"; |
| |
| |
| |
| public JMSBytesMessage(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 |
| */ |
| JMSBytesMessage(AMQMessageDelegateFactory delegateFactory, ByteBuffer data) |
| { |
| |
| super(delegateFactory, data); // this instanties a content header |
| } |
| |
| JMSBytesMessage(AMQMessageDelegate delegate, ByteBuffer data) throws AMQException |
| { |
| super(delegate, data); |
| } |
| |
| |
| public void reset() |
| { |
| super.reset(); |
| _readableMessage = true; |
| } |
| |
| protected String getMimeType() |
| { |
| return MIME_TYPE; |
| } |
| |
| public long getBodyLength() throws JMSException |
| { |
| checkReadable(); |
| return _data.limit(); |
| } |
| |
| public boolean readBoolean() throws JMSException |
| { |
| checkReadable(); |
| checkAvailable(1); |
| return _data.get() != 0; |
| } |
| |
| public byte readByte() throws JMSException |
| { |
| checkReadable(); |
| checkAvailable(1); |
| return _data.get(); |
| } |
| |
| public int readUnsignedByte() throws JMSException |
| { |
| checkReadable(); |
| checkAvailable(1); |
| return _data.getUnsigned(); |
| } |
| |
| public short readShort() throws JMSException |
| { |
| checkReadable(); |
| checkAvailable(2); |
| return _data.getShort(); |
| } |
| |
| public int readUnsignedShort() throws JMSException |
| { |
| checkReadable(); |
| checkAvailable(2); |
| return _data.getUnsignedShort(); |
| } |
| |
| /** |
| * 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(2); |
| return _data.getChar(); |
| } |
| |
| public int readInt() throws JMSException |
| { |
| checkReadable(); |
| checkAvailable(4); |
| return _data.getInt(); |
| } |
| |
| public long readLong() throws JMSException |
| { |
| checkReadable(); |
| checkAvailable(8); |
| return _data.getLong(); |
| } |
| |
| public float readFloat() throws JMSException |
| { |
| checkReadable(); |
| checkAvailable(4); |
| return _data.getFloat(); |
| } |
| |
| public double readDouble() throws JMSException |
| { |
| checkReadable(); |
| checkAvailable(8); |
| return _data.getDouble(); |
| } |
| |
| public String readUTF() throws JMSException |
| { |
| checkReadable(); |
| // we check only for one byte since theoretically the string could be only a |
| // single byte when using UTF-8 encoding |
| |
| try |
| { |
| short length = readShort(); |
| if(length == 0) |
| { |
| return ""; |
| } |
| else |
| { |
| CharsetDecoder decoder = Charset.forName("UTF-8").newDecoder(); |
| ByteBuffer encodedString = _data.slice(); |
| encodedString.limit(length); |
| _data.position(_data.position()+length); |
| CharBuffer string = decoder.decode(encodedString.buf()); |
| |
| return string.toString(); |
| } |
| |
| |
| |
| } |
| 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 int readBytes(byte[] bytes, int maxLength) throws JMSException |
| { |
| if (bytes == null) |
| { |
| throw new IllegalArgumentException("byte array must not be null"); |
| } |
| if (maxLength > bytes.length) |
| { |
| throw new IllegalArgumentException("maxLength must be <= bytes.length"); |
| } |
| checkReadable(); |
| int count = (_data.remaining() >= maxLength ? maxLength : _data.remaining()); |
| if (count == 0) |
| { |
| return -1; |
| } |
| else |
| { |
| _data.get(bytes, 0, count); |
| return count; |
| } |
| } |
| |
| public void writeBoolean(boolean b) throws JMSException |
| { |
| checkWritable(); |
| _changedData = true; |
| _data.put(b ? (byte) 1 : (byte) 0); |
| } |
| |
| public void writeByte(byte b) throws JMSException |
| { |
| checkWritable(); |
| _changedData = true; |
| _data.put(b); |
| } |
| |
| public void writeShort(short i) throws JMSException |
| { |
| checkWritable(); |
| _changedData = true; |
| _data.putShort(i); |
| } |
| |
| public void writeChar(char c) throws JMSException |
| { |
| checkWritable(); |
| _changedData = true; |
| _data.putChar(c); |
| } |
| |
| public void writeInt(int i) throws JMSException |
| { |
| checkWritable(); |
| _changedData = true; |
| _data.putInt(i); |
| } |
| |
| public void writeLong(long l) throws JMSException |
| { |
| checkWritable(); |
| _changedData = true; |
| _data.putLong(l); |
| } |
| |
| public void writeFloat(float v) throws JMSException |
| { |
| checkWritable(); |
| _changedData = true; |
| _data.putFloat(v); |
| } |
| |
| public void writeDouble(double v) throws JMSException |
| { |
| checkWritable(); |
| _changedData = true; |
| _data.putDouble(v); |
| } |
| |
| public void writeUTF(String string) throws JMSException |
| { |
| checkWritable(); |
| try |
| { |
| CharsetEncoder encoder = Charset.forName("UTF-8").newEncoder(); |
| java.nio.ByteBuffer encodedString = encoder.encode(CharBuffer.wrap(string)); |
| |
| _data.putShort((short)encodedString.limit()); |
| _data.put(encodedString); |
| _changedData = true; |
| //_data.putString(string, Charset.forName("UTF-8").newEncoder()); |
| // we must add the null terminator manually |
| //_data.put((byte)0); |
| } |
| 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); |
| _changedData = true; |
| } |
| |
| public void writeBytes(byte[] bytes, int offset, int length) throws JMSException |
| { |
| checkWritable(); |
| _data.put(bytes, offset, length); |
| _changedData = true; |
| } |
| |
| public void writeObject(Object object) throws JMSException |
| { |
| checkWritable(); |
| if (object == null) |
| { |
| throw new NullPointerException("Argument must not be null"); |
| } |
| Class clazz = object.getClass(); |
| if (clazz == Byte.class) |
| { |
| writeByte((Byte) object); |
| } |
| else if (clazz == Boolean.class) |
| { |
| writeBoolean((Boolean) object); |
| } |
| else if (clazz == byte[].class) |
| { |
| writeBytes((byte[]) object); |
| } |
| else if (clazz == Short.class) |
| { |
| writeShort((Short) object); |
| } |
| else if (clazz == Character.class) |
| { |
| writeChar((Character) object); |
| } |
| else if (clazz == Integer.class) |
| { |
| writeInt((Integer) object); |
| } |
| else if (clazz == Long.class) |
| { |
| writeLong((Long) object); |
| } |
| else if (clazz == Float.class) |
| { |
| writeFloat((Float) object); |
| } |
| else if (clazz == Double.class) |
| { |
| writeDouble((Double) object); |
| } |
| else if (clazz == String.class) |
| { |
| writeUTF((String) object); |
| } |
| else |
| { |
| throw new MessageFormatException("Only primitives plus byte arrays and String are valid types"); |
| } |
| } |
| |
| public String toString() |
| { |
| return String.valueOf(System.identityHashCode(this)); |
| } |
| |
| } |