Here are the examples of the java api class org.apache.activemq.openwire.buffer.Buffer taken from open source projects.
1. OpenWireStreamMessageTest#testWriteListToStreamCompressed()
Project: activemq-openwire
File: OpenWireStreamMessageTest.java
File: OpenWireStreamMessageTest.java
@Test public void testWriteListToStreamCompressed() throws Exception { OpenWireStreamMessage message = new OpenWireStreamMessage(); message.setUseCompression(true); // Add something that should compress well. elements.add("Repeating String" + "Repeating String" + "Repeating String" + "Repeating String" + "Repeating String" + "Repeating String" + "Repeating String" + "Repeating String" + "Repeating String" + "Repeating String" + "Repeating String" + "Repeating String"); message.writeListToStream(Collections.emptyList()); assertNull(message.getContent()); message.writeListToStream(elements); assertNotNull(message.getContent()); Buffer rawContent = message.getContent(); Buffer processedContent = message.getPayload(); assertTrue(rawContent.getLength() < processedContent.getLength()); }
2. WireFormatInfoMarshaledSizeTest#testMarshalThenUnmarshal1()
Project: activemq-openwire
File: WireFormatInfoMarshaledSizeTest.java
File: WireFormatInfoMarshaledSizeTest.java
@Test public void testMarshalThenUnmarshal1() throws Exception { final WireFormatInfo info = wireFormat.getPreferedWireFormatInfo(); LOG.info("Original: {}", info); Buffer marshaledForm = wireFormat.marshal(info); assertNotNull(marshaledForm); Object result = wireFormat.unmarshal(marshaledForm); assertNotNull(result); assertTrue(result instanceof WireFormatInfo); WireFormatInfo duplicate = (WireFormatInfo) result; LOG.info("Duplicated: {}", duplicate); assertEquals(info.getVersion(), duplicate.getVersion()); assertEquals(info.getCacheSize(), duplicate.getCacheSize()); assertEquals(info.getMaxFrameSize(), duplicate.getMaxFrameSize()); assertEquals(info.getMaxInactivityDuration(), duplicate.getMaxInactivityDuration()); assertEquals(info.getMaxInactivityDurationInitalDelay(), duplicate.getMaxInactivityDurationInitalDelay()); assertEquals(info.isCacheEnabled(), duplicate.isCacheEnabled()); assertEquals(info.isSizePrefixDisabled(), duplicate.isSizePrefixDisabled()); assertEquals(info.isTcpNoDelayEnabled(), duplicate.isTcpNoDelayEnabled()); assertEquals(info.isStackTraceEnabled(), duplicate.isTcpNoDelayEnabled()); assertEquals(info.isTightEncodingEnabled(), duplicate.isTightEncodingEnabled()); }
3. WireFormatInfoMarshaledSizeTest#testMarshalledSize1()
Project: activemq-openwire
File: WireFormatInfoMarshaledSizeTest.java
File: WireFormatInfoMarshaledSizeTest.java
@Test public void testMarshalledSize1() throws Exception { WireFormatInfo info = wireFormat.getPreferedWireFormatInfo(); Buffer result = wireFormat.marshal(info); assertNotNull(result); LOG.info("Size of marshalled object: {}", result.getLength()); assertEquals(getExpectedMarshaledSize(), result.getLength()); ByteArrayInputStream bytesIn = new ByteArrayInputStream(result.toByteArray()); DataInputStream input = new DataInputStream(bytesIn); int size = input.readInt(); assertEquals(getExpectedMarshaledSize() - 4, size); }
4. OpenWireTextMessageTest#testGetBytes()
Project: activemq-openwire
File: OpenWireTextMessageTest.java
File: OpenWireTextMessageTest.java
@Test public void testGetBytes() throws Exception, IOException { OpenWireTextMessage msg = new OpenWireTextMessage(); String str = "testText"; msg.setText(str); msg.beforeMarshall(null); Buffer bytes = msg.getContent(); msg = new OpenWireTextMessage(); msg.setContent(bytes); assertEquals(msg.getText(), str); }
5. OpenWireStreamMessage#readStreamToList()
Project: activemq-openwire
File: OpenWireStreamMessage.java
File: OpenWireStreamMessage.java
/** * Reads the contents of the StreamMessage instances into a single List<Object> instance * and returns it. The read starts from the current position of the message which implies * that the list might not be a complete view of the message if any prior read operations * were invoked. * * @return a List containing the objects store in this message starting from the current position. * * @throws JMSException if an error occurs while reading the message. */ public List<Object> readStreamToList() throws IOException { if (!hasContent()) { return Collections.emptyList(); } Buffer payload = getPayload(); DataByteArrayInputStream dataIn = new DataByteArrayInputStream(payload); List<Object> result = new ArrayList<Object>(); while (true) { try { result.add(readNextElement(dataIn)); } catch (EOFException ex) { break; } catch (Exception e) { throw IOExceptionSupport.create(e); } } return result; }
6. OpenWireObjectMessage#storeContent()
Project: activemq-openwire
File: OpenWireObjectMessage.java
File: OpenWireObjectMessage.java
@Override public void storeContent() { Buffer bodyAsBytes = getContent(); if (bodyAsBytes == null && object != null) { try { DataByteArrayOutputStream bytesOut = new DataByteArrayOutputStream(); OutputStream os = bytesOut; if (isUseCompression()) { compressed = true; os = new DeflaterOutputStream(os); } DataOutputStream dataOut = new DataOutputStream(os); ObjectOutputStream objOut = new ObjectOutputStream(dataOut); objOut.writeObject(object); objOut.flush(); objOut.reset(); objOut.close(); setContent(bytesOut.toBuffer()); } catch (IOException ioe) { throw new RuntimeException(ioe.getMessage(), ioe); } } }
7. OpenWireMessage#getPayload()
Project: activemq-openwire
File: OpenWireMessage.java
File: OpenWireMessage.java
/** * Provides a fast way to read the message contents. * * This method, unlike the base class getContent method will perform any needed * decompression on a message that was received with a compressed payload. * * @return a the message contents, uncompressed as needed. * * @throws JMSException if an error occurs while accessing the message payload. */ public Buffer getPayload() throws IOException { Buffer data = getContent(); if (data == null) { data = new Buffer(new byte[] {}, 0, 0); } else if (isCompressed()) { try { return decompress(); } catch (Exception e) { throw IOExceptionSupport.create(e); } } return data; }
8. OpenWireBytesMessage#doDecompress()
Project: activemq-openwire
File: OpenWireBytesMessage.java
File: OpenWireBytesMessage.java
@Override protected Buffer doDecompress() throws IOException { Buffer compressed = getContent(); Inflater inflater = new Inflater(); DataByteArrayOutputStream decompressed = new DataByteArrayOutputStream(); try { // Copy to avoid race on concurrent reads of compressed message payload. compressed = new Buffer(compressed); DataByteArrayInputStream compressedIn = new DataByteArrayInputStream(compressed); int length = compressedIn.readInt(); compressedIn.close(); byte[] data = Arrays.copyOfRange(compressed.getData(), 4, compressed.getLength()); inflater.setInput(data); byte[] buffer = new byte[length]; int count = inflater.inflate(buffer); decompressed.write(buffer, 0, count); return decompressed.toBuffer(); } catch (Exception e) { throw new IOException(e); } finally { inflater.end(); decompressed.close(); } }
9. OpenWireBytesMessage#getBodyBytes()
Project: activemq-openwire
File: OpenWireBytesMessage.java
File: OpenWireBytesMessage.java
/** * Provides a fast way to read the message contents. * * This method, unlike the base class getContent method will perform any * needed decompression on a message that was received with a compressed * payload. The complete message body will then be read and returned in * a byte array copy. Changes to the returned byte array are not reflected * in the underlying message contents. * * @return a copy of the message contents, uncompressed as needed. * * @throws IOException if an error occurs while accessing the message payload. */ public byte[] getBodyBytes() throws IOException { Buffer data = getPayload(); if (data == null) { data = new Buffer(new byte[] {}, 0, 0); } return data.toByteArray(); }
10. WireFormatInfoMarshaledSizeTest#testMarshalThenUnmarshal4()
Project: activemq-openwire
File: WireFormatInfoMarshaledSizeTest.java
File: WireFormatInfoMarshaledSizeTest.java
@Test public void testMarshalThenUnmarshal4() throws Exception { final WireFormatInfo info = wireFormat.getPreferedWireFormatInfo(); LOG.info("Original: {}", info); Buffer marshaledForm = wireFormat.marshal(info); assertNotNull(marshaledForm); ByteArrayInputStream bytesIn = new ByteArrayInputStream(marshaledForm.data); DataInputStream dataIn = new DataInputStream(bytesIn); Object result = wireFormat.unmarshal(dataIn); assertNotNull(result); assertTrue(result instanceof WireFormatInfo); WireFormatInfo duplicate = (WireFormatInfo) result; LOG.info("Duplicated: {}", duplicate); assertEquals(info.getVersion(), duplicate.getVersion()); assertEquals(info.getCacheSize(), duplicate.getCacheSize()); assertEquals(info.getMaxFrameSize(), duplicate.getMaxFrameSize()); assertEquals(info.getMaxInactivityDuration(), duplicate.getMaxInactivityDuration()); assertEquals(info.getMaxInactivityDurationInitalDelay(), duplicate.getMaxInactivityDurationInitalDelay()); assertEquals(info.isCacheEnabled(), duplicate.isCacheEnabled()); assertEquals(info.isSizePrefixDisabled(), duplicate.isSizePrefixDisabled()); assertEquals(info.isTcpNoDelayEnabled(), duplicate.isTcpNoDelayEnabled()); assertEquals(info.isStackTraceEnabled(), duplicate.isTcpNoDelayEnabled()); assertEquals(info.isTightEncodingEnabled(), duplicate.isTightEncodingEnabled()); }
11. WireFormatInfoMarshaledSizeTest#testMarshalThenUnmarshal3()
Project: activemq-openwire
File: WireFormatInfoMarshaledSizeTest.java
File: WireFormatInfoMarshaledSizeTest.java
@Test public void testMarshalThenUnmarshal3() throws Exception { final WireFormatInfo info = wireFormat.getPreferedWireFormatInfo(); LOG.info("Original: {}", info); ByteArrayOutputStream bytesOut = new ByteArrayOutputStream(); DataOutputStream dataOut = new DataOutputStream(bytesOut); wireFormat.marshal(info, dataOut); dataOut.close(); Buffer marshaledForm = new Buffer(bytesOut.toByteArray()); Object result = wireFormat.unmarshal(marshaledForm); assertNotNull(result); assertTrue(result instanceof WireFormatInfo); WireFormatInfo duplicate = (WireFormatInfo) result; LOG.info("Duplicated: {}", duplicate); assertEquals(info.getVersion(), duplicate.getVersion()); assertEquals(info.getCacheSize(), duplicate.getCacheSize()); assertEquals(info.getMaxFrameSize(), duplicate.getMaxFrameSize()); assertEquals(info.getMaxInactivityDuration(), duplicate.getMaxInactivityDuration()); assertEquals(info.getMaxInactivityDurationInitalDelay(), duplicate.getMaxInactivityDurationInitalDelay()); assertEquals(info.isCacheEnabled(), duplicate.isCacheEnabled()); assertEquals(info.isSizePrefixDisabled(), duplicate.isSizePrefixDisabled()); assertEquals(info.isTcpNoDelayEnabled(), duplicate.isTcpNoDelayEnabled()); assertEquals(info.isStackTraceEnabled(), duplicate.isTcpNoDelayEnabled()); assertEquals(info.isTightEncodingEnabled(), duplicate.isTightEncodingEnabled()); }
12. OpenWireMessageTest#fakeUnmarshal()
Project: activemq-openwire
File: OpenWireMessageTest.java
File: OpenWireMessageTest.java
private void fakeUnmarshal(OpenWireObjectMessage message) throws Exception { OpenWireFormat format = new OpenWireFormat(OpenWireFormat.DEFAULT_WIRE_VERSION); message.beforeMarshall(format); message.afterMarshall(format); Buffer seq = message.getMarshalledProperties(); message.clearProperties(); message.setMarshalledProperties(seq); }
13. DataStructureTestSupport#marshalAndUnmarshall()
Project: activemq-openwire
File: DataStructureTestSupport.java
File: DataStructureTestSupport.java
protected Object marshalAndUnmarshall(Object original, OpenWireFormat wireFormat) throws IOException { Buffer packet = wireFormat.marshal(original); return wireFormat.unmarshal(packet); }
14. OpenWireMessage#hasContent()
Project: activemq-openwire
File: OpenWireMessage.java
File: OpenWireMessage.java
/** * @returns true if the message has data in its body, false if empty. */ public boolean hasContent() { Buffer content = getContent(); if (content == null || content.isEmpty()) { return false; } return true; }
15. OpenWireBytesMessage#doCompress()
Project: activemq-openwire
File: OpenWireBytesMessage.java
File: OpenWireBytesMessage.java
@Override protected void doCompress() throws IOException { compressed = true; Buffer bytes = getContent(); if (bytes != null) { int length = bytes.getLength(); DataByteArrayOutputStream compressed = new DataByteArrayOutputStream(); compressed.write(new byte[4]); Deflater deflater = new Deflater(); try { deflater.setInput(bytes.data); deflater.finish(); byte[] buffer = new byte[1024]; while (!deflater.finished()) { int count = deflater.deflate(buffer); compressed.write(buffer, 0, count); } compressed.writeInt(0, length); setContent(compressed.toBuffer()); } finally { deflater.end(); compressed.close(); } } }
16. Message#doCompress()
Project: activemq-openwire
File: Message.java
File: Message.java
protected void doCompress() throws IOException { compressed = true; Buffer bytes = getContent(); DataByteArrayOutputStream bytesOut = new DataByteArrayOutputStream(); OutputStream os = new DeflaterOutputStream(bytesOut); os.write(bytes.data, bytes.offset, bytes.length); os.close(); setContent(bytesOut.toBuffer()); }
17. OpenWireFormat#marshal()
Project: activemq-openwire
File: OpenWireFormat.java
File: OpenWireFormat.java
public synchronized Buffer marshal(Object command) throws IOException { if (cacheEnabled) { runMarshallCacheEvictionSweep(); } Buffer sequence = null; int size = 1; if (command != null) { DataStructure c = (DataStructure) command; byte type = c.getDataStructureType(); DataStreamMarshaller dsm = dataMarshallers[type & 0xFF]; if (dsm == null) { throw new IOException("Unknown data type: " + type); } if (tightEncodingEnabled) { BooleanStream bs = new BooleanStream(); size += dsm.tightMarshal1(this, c, bs); size += bs.marshalledSize(); bytesOut.restart(size); if (!sizePrefixDisabled) { bytesOut.writeInt(size); } bytesOut.writeByte(type); bs.marshal(bytesOut); dsm.tightMarshal2(this, c, bytesOut, bs); sequence = bytesOut.toBuffer(); } else { bytesOut.restart(); if (!sizePrefixDisabled) { // we don't know the final size yet but write this here for now. bytesOut.writeInt(0); } bytesOut.writeByte(type); dsm.looseMarshal(this, c, bytesOut); if (!sizePrefixDisabled) { size = bytesOut.size() - 4; bytesOut.writeInt(0, size); } sequence = bytesOut.toBuffer(); } } else { bytesOut.restart(5); bytesOut.writeInt(size); bytesOut.writeByte(NULL_TYPE); sequence = bytesOut.toBuffer(); } return sequence; }
18. BaseDataStreamMarshaller#looseUnmarshalByteSequence()
Project: activemq-openwire
File: BaseDataStreamMarshaller.java
File: BaseDataStreamMarshaller.java
protected Buffer looseUnmarshalByteSequence(DataInput dataIn) throws IOException { Buffer rc = null; if (dataIn.readBoolean()) { int size = dataIn.readInt(); byte[] t = new byte[size]; dataIn.readFully(t); rc = new Buffer(t, 0, size); } return rc; }
19. BaseDataStreamMarshaller#tightUnmarshalByteSequence()
Project: activemq-openwire
File: BaseDataStreamMarshaller.java
File: BaseDataStreamMarshaller.java
protected Buffer tightUnmarshalByteSequence(DataInput dataIn, BooleanStream bs) throws IOException { Buffer rc = null; if (bs.readBoolean()) { int size = dataIn.readInt(); byte[] t = new byte[size]; dataIn.readFully(t); return new Buffer(t, 0, size); } return rc; }