org.apache.mina.core.buffer.IoBuffer#getLong

Source File: ArduinoCodec.java From neoscada with Eclipse Public License 1.0

6 votes

private Object decodeData ( final IoBuffer data ) throws ProtocolCodecException
{
    data.order ( ByteOrder.LITTLE_ENDIAN );

    final byte dataType = data.get ();
    switch ( dataType )
    {
        case 0:
            return null;
        case 1:
            return data.get () != 0x00;
        case 2:
            return data.getInt ();
        case 3:
            return data.getLong ();
        case 4:
            return data.getFloat ();
        default:
            throw new ProtocolCodecException ( String.format ( "Data type %02x is unknown", dataType ) );
    }

}

Source File: LongFieldTypeHandler.java From CXTouch with GNU General Public License v3.0

5 votes

@Override
public Long decode(IoBuffer inBuffer) {
    if (inBuffer.remaining() < 8) {
        return null;
    } else {
        return inBuffer.getLong();
    }
}

Source File: ProtocolDecoderImpl.java From neoscada with Eclipse Public License 1.0

5 votes

private DataUpdate.Entry decodeDataUpdateEntry ( final IoBuffer data, final IoSession session ) throws ProtocolCodecException
{
    final int register = data.getUnsignedShort ();
    final byte missedUpdates = data.get ();
    final long timestamp = data.getLong ();
    final Set<DataUpdate.State> states = data.getEnumSetShort ( DataUpdate.State.class );

    final Variant value = decodeVariant ( session, data );

    return new DataUpdate.Entry ( register, value, timestamp, states, missedUpdates );
}

Source File: DefaultBinaryContext.java From neoscada with Eclipse Public License 1.0

5 votes

@Override
public Long decodeLong ( final IoBuffer buffer ) throws Exception
{
    final byte type = checkType ( buffer, TYPE_LONG, true );

    if ( type == TYPE_NULL )
    {
        return null;
    }
    else
    {
        return buffer.getLong ();
    }
}

Source File: InternalJsonCodec.java From sailfish-core with Apache License 2.0

4 votes

@Override
protected boolean doDecode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception {
    boolean decoded = false;

    while (in.remaining() > HEADER_SIZE) {
        in.mark();
        long length = in.getLong();
        long seq = in.getLong();

        if (in.remaining() >= length) {
            byte[] buff = new byte[(int) length];
            in.get(buff);

            if (logger.isDebugEnabled()) {
                logger.debug("decode() sequnce {} as hex [{}]", seq, Hex.encodeHex(buff));
            }
            decoded = true;

            in.reset();
            byte[] rawData = new byte[(int) length + HEADER_SIZE];
            in.get(rawData);

            IMessage message = null;

            try {
                Map<?, ?> map = objectMapper.readValue(buff, HashMap.class);
                message = MessageUtil.convertToIMessage(map, msgFactory, TCPIPMessageHelper.INCOMING_MESSAGE_NAME_AND_NAMESPACE,
                        TCPIPMessageHelper.INCOMING_MESSAGE_NAME_AND_NAMESPACE);

            } catch (Exception e) {
                message = msgFactory.createMessage("Exception",
                        TCPIPMessageHelper.INCOMING_MESSAGE_NAME_AND_NAMESPACE);

                message.addField("Cause", e.getMessage());
            }

            message.getMetaData().setRawMessage(rawData);
            out.write(message);
        } else {
            in.reset();
        }
    }

    return decoded;
}

Source File: TestNTGVisitorPositive.java From sailfish-core with Apache License 2.0

4 votes

/**
 * Test case Long data type
 */
@Test
   public void testNTGVisitorEncode_LongField()
{
	Long value = Long.MAX_VALUE;
	int offset = 0 ;
	int length = 8;
	String fldName = "FieldLong";
       String fldNamespace = "NTG";
	String fldDescr = "Description " + fldName;

	Map<String, IAttributeStructure> protocolAttributes = new HashMap<>();

       protocolAttributes.put(NTGProtocolAttribute.Offset.toString(), new AttributeStructure(
               NTGProtocolAttribute.Offset.toString(), Integer.toString(offset), offset, JavaType.JAVA_LANG_INTEGER));

       protocolAttributes.put(NTGProtocolAttribute.Format.toString(), new AttributeStructure(
               NTGProtocolAttribute.Format.toString(), NTGFieldFormat.S.toString(), NTGFieldFormat.S.toString(),
			JavaType.JAVA_LANG_STRING));

       protocolAttributes.put(NTGProtocolAttribute.Length.toString(), new AttributeStructure(
               NTGProtocolAttribute.Length.toString(), Integer.toString(length), length, JavaType.JAVA_LANG_INTEGER));

	IFieldStructure mockSimpleField =
			new FieldStructure(fldName, fldNamespace, fldDescr, null,
					protocolAttributes, null, JavaType.JAVA_LANG_LONG, false, false, false, null);

	ByteBuffer bb = ByteBuffer.wrap(new byte[length]);
	bb.order( ByteOrder.LITTLE_ENDIAN);
	bb.putLong(value);

	try
	{
		IFieldStructure fldStruct = new FieldStructure(fldName, fldNamespace,
				fldDescr, null, protocolAttributes, null, JavaType.JAVA_LANG_LONG,
				true, false, false, value.toString()) ;

           NTGVisitorEncode visitor = new NTGVisitorEncode();
           visitor.visit(mockSimpleField.getName(), value, fldStruct, false);
           IoBuffer ioBuffer = visitor.getBuffer();

		for( int i = 0 ; i < bb.array().length; i++ )
		{
			logger.trace("Symbol at index [{}]. Expected [{}], actual [{}].", i,
					bb.array()[i], ioBuffer.array()[i]);

               Assert.assertEquals(String.format("NTGVisitor.visit(Long) failed. " +
					"Error at index [%d]. Expected [%x], actual [%x].", i,
					bb.array()[i], ioBuffer.array()[i]),
					bb.array()[i], ioBuffer.array()[i]);
		}

		IoBuffer copy = ioBuffer.duplicate();
		copy.order(ByteOrder.LITTLE_ENDIAN);
		copy.flip();
		Long restored = copy.getLong();

		Assert.assertEquals( value, restored );

           logger.info("Visitor: method visit(Long)  PASSED.");
	}
	catch(Exception ex)
	{
		ex.printStackTrace();
		logger.error(ex.getMessage(),ex);
		Assert.fail(ex.getMessage());
	}
}

Source File: TestNTGVisitorPositive.java From sailfish-core with Apache License 2.0

4 votes

/**
 * Test case Double data type
 */
@Test
   public void testNTGVisitorEncode_DoubleField()
{
	Double value = (double) (Integer.MAX_VALUE/10000);
	int offset = 0 ;
	int length = 8;
	String fldName = "FieldDouble";
       String fldNamespace = "NTG";
	String fldDescr = "Description " + fldName;

	Map<String, IAttributeStructure> protocolAttributes = new HashMap<>();

       protocolAttributes.put(NTGProtocolAttribute.Offset.toString(), new AttributeStructure(
               NTGProtocolAttribute.Offset.toString(), Integer.toString(offset), offset, JavaType.JAVA_LANG_INTEGER));

       protocolAttributes.put(NTGProtocolAttribute.Format.toString(), new AttributeStructure(
               NTGProtocolAttribute.Format.toString(), NTGFieldFormat.S.toString(), NTGFieldFormat.S.toString(),
			JavaType.JAVA_LANG_STRING));

       protocolAttributes.put(NTGProtocolAttribute.Length.toString(), new AttributeStructure(
               NTGProtocolAttribute.Length.toString(), Integer.toString(length), length, JavaType.JAVA_LANG_INTEGER));

	IFieldStructure mockSimpleField =
			new FieldStructure(fldName, fldNamespace, fldDescr, null,
					protocolAttributes, null, JavaType.JAVA_LANG_DOUBLE, false, false, false, null);

	ByteBuffer bb = ByteBuffer.wrap(new byte[length]);
	bb.order( ByteOrder.LITTLE_ENDIAN);

	BigDecimal baseValue = new BigDecimal( value );
	BigDecimal baseScaled  = baseValue.setScale( 8, BigDecimal.ROUND_HALF_UP );
	BigDecimal multiplied = baseScaled.multiply( new BigDecimal(Math.pow(10, 8))) ;
	bb.putLong(multiplied.longValue());

	try
	{
		IFieldStructure fldStruct = new FieldStructure(fldName, fldNamespace,
				fldDescr, null, protocolAttributes, null, JavaType.JAVA_LANG_DOUBLE,
				true, false, false, value.toString()) ;

           NTGVisitorEncode visitor = new NTGVisitorEncode();
           visitor.visit(mockSimpleField.getName(), value, fldStruct, false);
           IoBuffer ioBuffer = visitor.getBuffer();

		for( int i = 0 ; i < bb.array().length; i++ )
		{
			logger.trace("Symbol at index [{}]. Expected [{}], actual [{}].", i,
					bb.array()[i], ioBuffer.array()[i]);

               Assert.assertEquals(String.format("NTGVisitor.visit(Double) failed. " +
					"Error at index [%d]. Expected [%x], actual [%x].", i,
					bb.array()[i], ioBuffer.array()[i]),
					bb.array()[i], ioBuffer.array()[i]);
		}
		IoBuffer copy = ioBuffer.duplicate();
		copy.order(ByteOrder.LITTLE_ENDIAN);
		copy.flip();
		Double restored = copy.getLong() /Math.pow(10, 8);

		Assert.assertEquals( value, restored );

           logger.info("Visitor: method visit(Double)  PASSED.");
	}
	catch(Exception ex)
	{
		ex.printStackTrace();
		logger.error(ex.getMessage(),ex);
		Assert.fail(ex.getMessage());
	}
}

Source File: DefaultBinaryContext.java From neoscada with Eclipse Public License 1.0

4 votes

@Override
public long decodePrimitiveLong ( final IoBuffer buffer ) throws Exception
{
    checkType ( buffer, TYPE_LONG, false );
    return buffer.getLong ();
}

Source File: Int64Accessor.java From neoscada with Eclipse Public License 1.0

4 votes

@Override
public Long get ( final IoBuffer data, final int index )
{
    return data.getLong ( index );
}

Source File: WebMessageDecoder.java From cim with Apache License 2.0

4 votes

@Override
public void decode(IoSession iosession, IoBuffer in, ProtocolDecoderOutput out) throws InvalidProtocolBufferException{
	
	/*
	 * 判断是否是握手请求
	 */

	if(isHandShakeRequest(iosession,in)) {
		handleHandshake(iosession,in, out);
		return;
	}

	
	in.mark();
	
	/*
	 * 接下来判断fin标志位是否是1 如果是0 则等待消息接收完成
	 */
	byte tag = in.get();
	int frameFin = tag  > 0 ?  0 : 1;
	if(frameFin == 0) {
		in.reset();
		return;
	}
	
	/*
	 * 获取帧类型，因为使用了protobuf，所以只支持二进制帧 OPCODE_BINARY，以及客户端关闭连接帧通知 OPCODE_CLOSE
	 */
	int frameCode = tag & TAG_MASK;
	
	if(OPCODE_BINARY == frameCode) {
		
		byte head = in.get();
		byte dataLength = (byte) (head & PAYLOADLEN);
		int realLength;
		
		/*
		 *Payload len，7位或者7+16位或者7+64位，表示数据帧中数据大小，这里有好几种情况。
		 *如果值为0-125，那么该值就是payload data的真实长度。
		 *如果值为126，那么该7位后面紧跟着的2个字节就是payload data的真实长度。
		 *如果值为127，那么该7位后面紧跟着的8个字节就是payload data的真实长度。
		 */
		if (dataLength == HAS_EXTEND_DATA) {
			realLength = in.getShort();
		} else if (dataLength == HAS_EXTEND_DATA_CONTINUE) {
			realLength = (int) in.getLong();
		}else {
			realLength = dataLength;
		}

		boolean masked = (head >> 7 & MASK) == 1;
		if (masked) {
			byte[] mask = new byte[4];
			in.get(mask);
			
			byte[] data = new byte[realLength];
			in.get(data);
			for (int i = 0; i < realLength; i++) {
				data[i] = (byte) (data[i] ^ mask[i % 4]);
			}
			
			handleMessage(data,out);
		}
		
	}else if(OPCODE_CLOSE == frameCode) {
       	handleClose(iosession,in);
	}else {
		in.get(new byte[in.remaining()]);
	}

}

Java Code Examples for org.apache.mina.core.buffer.IoBuffer#getLong()