Example usage for io.netty.buffer ByteBuf writeShort

List of usage examples for io.netty.buffer ByteBuf writeShort

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Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf writeShort.

Prototype

public abstract ByteBuf writeShort(int value);

Source Link

Document

Sets the specified 16-bit short integer at the current writerIndex and increases the writerIndex by 2 in this buffer.

Usage

From source file:org.eclipse.neoscada.protocol.iec60870.asdu.types.TypeHelper.java

License:Open Source License

public static void encodeTimestamp(final ProtocolOptions options, final ByteBuf out, final long timestamp) {
    final Calendar c = new GregorianCalendar(options.getTimeZone());
    c.setTimeInMillis(timestamp);//  w  w  w  .j a va2 s  . co  m

    final int ms = c.get(Calendar.SECOND) * 1_000 + c.get(Calendar.MILLISECOND);
    final int minutes = c.get(Calendar.MINUTE);
    final int hours = c.get(Calendar.HOUR_OF_DAY);
    final int dayOfMonth = c.get(Calendar.DAY_OF_MONTH);
    final int month = c.get(Calendar.MONTH) + 1;
    final int year = c.get(Calendar.YEAR) % 100;

    byte hourField = (byte) (hours & 0b00011111);

    if (!options.isIgnoreDaylightSavingTime()) {
        if (c.get(Calendar.DST_OFFSET) > 0) {
            hourField |= 0b10000000;
        }
    }

    out.writeShort(ms);
    out.writeByte(minutes); // we implicitly set "valid"
    out.writeByte(hourField);
    out.writeByte(dayOfMonth); // we implicitly set dayOfWeek to zero here
    out.writeByte(month);
    out.writeByte(year);
}

From source file:org.eclipse.neoscada.protocol.iec60870.asdu.types.TypeHelper.java

License:Open Source License

/**
 * Encode Short integer number with quality descriptor
 *//*from ww w .  ja  va  2  s .  c  o m*/
public static void encodeScaledValue(final ProtocolOptions options, final ByteBuf out, final Value<Short> value,
        final boolean withTimestamp) {
    final byte qds = (byte) (value.isOverflow() ? 0b00000001 : 0b00000000);
    final byte siq = value.getQualityInformation().apply(qds);

    out.writeShort(value.getValue());
    out.writeByte(siq);

    if (withTimestamp) {
        encodeTimestamp(options, out, value.getTimestamp());
    }
}

From source file:org.eclipse.neoscada.protocol.iec60870.asdu.types.TypeHelper.java

License:Open Source License

/**
 * Encode Double as normalized value with quality descriptor
 */// w  w  w.  j  a v  a 2  s. c  om
public static void encodeNormalizedValue(final ProtocolOptions options, final ByteBuf out,
        final Value<Double> value, final boolean withTimestamp) {
    final boolean isOverflow;
    final short normalizedValue;
    if (value.getValue() < MIN_NORMALIZED_VALUE) {
        normalizedValue = Short.MIN_VALUE;
        isOverflow = true;
    } else if (value.getValue() > MAX_NORMALIZED_VALUE) {
        normalizedValue = Short.MAX_VALUE;
        isOverflow = true;
    } else {
        normalizedValue = (short) (value.getValue() * 32768);
        isOverflow = false;
    }

    final byte qds = (byte) ((value.isOverflow() || isOverflow) ? 0b00000001 : 0b00000000);
    final byte siq = value.getQualityInformation().apply(qds);

    out.writeShort(normalizedValue);
    out.writeByte(siq);

    if (withTimestamp) {
        encodeTimestamp(options, out, value.getTimestamp());
    }
}

From source file:org.eclipse.scada.protocol.iec60870.asdu.message.SetPointCommandScaledValue.java

License:Open Source License

@Override
public void encode(final ProtocolOptions options, final ByteBuf out) {
    EncodeHelper.encodeHeader(this, options, null, this.header, out);

    this.informationObjectAddress.encode(options, out);

    out.writeShort(this.value);

    byte b = 0;/*ww w. jav  a 2s  .  com*/

    b |= this.type & 0b011111111;
    b |= this.execute ? 0 : 0b100000000;

    out.writeByte(b);
}

From source file:org.eclipse.scada.protocol.iec60870.asdu.types.ASDUAddress.java

License:Open Source License

@Override
public String toString() {
    final ByteBuf buf = Unpooled.buffer(2);
    buf.writeShort(this.address);
    return isBroadcast() ? "[BCAST]"
            : String.format("[%d-%d # %d]", buf.getUnsignedByte(0), buf.getUnsignedByte(1), this.address);
}

From source file:org.evilco.mc.defense.common.network.DefenseStationRegisterUserPacket.java

License:Apache License

/**
 * {@inheritDoc}//from   ww w  . j  a  va  2  s  .  c  o m
 */
@Override
public void write(ByteBuf buffer) {
    // convert string to byte[]
    byte[] usernameRaw = this.username.getBytes(Charsets.UTF_8);

    // write coordinates
    buffer.writeInt(this.xCoord);
    buffer.writeInt(this.yCoord);
    buffer.writeInt(this.zCoord);

    // write mode
    buffer.writeBoolean(this.blacklist);

    // write length
    buffer.writeShort(usernameRaw.length);

    // write data
    buffer.writeBytes(usernameRaw);
}

From source file:org.evilco.mc.defense.common.network.DefenseStationUnregisterPacket.java

License:Apache License

/**
 * {@inheritDoc}//from w  w w. j  ava 2s .c o m
 */
@Override
public void write(ByteBuf buffer) {
    // write coordinates
    buffer.writeInt(this.xCoord);
    buffer.writeInt(this.yCoord);
    buffer.writeInt(this.zCoord);

    // create buffer
    byte[] buf = this.userID.toString().getBytes(Charsets.UTF_8);

    // write length
    buffer.writeShort(buf.length);

    // write bytes
    buffer.writeBytes(buf);
}

From source file:org.hawkular.metrics.clients.ptrans.collectd.packet.PacketDecodingTest.java

License:Apache License

static ByteBuf createStringPartBuffer(String value, PartType partType) {
    ByteBuf buffer = Unpooled.buffer();
    buffer.writeShort(partType.getId());
    ByteBuf src = Unpooled.copiedBuffer(value, CharsetUtil.US_ASCII);
    buffer.writeShort(4 + src.readableBytes() + 1);
    buffer.writeBytes(src);// w  w  w  .  java  2  s  .co m
    buffer.writeByte(0);
    return buffer;
}

From source file:org.hawkular.metrics.clients.ptrans.collectd.packet.PacketDecodingTest.java

License:Apache License

static ByteBuf createNumericPartBuffer(Long value, PartType partType) {
    ByteBuf buffer = Unpooled.buffer();
    buffer.writeShort(partType.getId());
    buffer.writeShort(12);//from ww  w .j a  va2  s.  co  m
    buffer.writeLong(value);
    return buffer;
}

From source file:org.hawkular.metrics.clients.ptrans.collectd.packet.PacketDecodingTest.java

License:Apache License

static ByteBuf createValuesPartBuffer(Values values) {
    List<Number> data = values.getData();
    ListIterator<Number> dataIterator = data.listIterator();
    List<DataType> dataTypes = values.getDataTypes();
    ListIterator<DataType> dataTypeIterator = dataTypes.listIterator();

    ByteBuf payloadBuffer = Unpooled.buffer();

    while (dataTypeIterator.hasNext()) {
        payloadBuffer.writeByte(dataTypeIterator.next().getId());
    }//w  ww.  ja v  a2  s  .c o m

    dataTypeIterator = dataTypes.listIterator();
    while (dataIterator.hasNext()) {
        DataType dataType = dataTypeIterator.next();
        Number number = dataIterator.next();
        switch (dataType) {
        case COUNTER:
        case ABSOLUTE:
            BigInteger bigInteger = (BigInteger) number;
            payloadBuffer.writeBytes(bigInteger.toByteArray());
            break;
        case DERIVE:
            payloadBuffer.writeLong((Long) number);
            break;
        case GAUGE:
            payloadBuffer.writeLong(ByteBufUtil.swapLong(Double.doubleToLongBits((Double) number)));
            break;
        default:
            fail("Unknown data type: " + dataType);
        }
    }

    ByteBuf headerBuffer = Unpooled.buffer();
    headerBuffer.writeShort(VALUES.getId());
    headerBuffer.writeShort(6 + payloadBuffer.writerIndex());
    headerBuffer.writeShort(data.size());

    ByteBuf buffer = Unpooled.buffer();
    buffer.writeBytes(headerBuffer.duplicate()).writeBytes(payloadBuffer.duplicate());
    return buffer;
}