Example usage for io.netty.buffer ByteBuf readByte

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

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Introduction

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

Prototype

public abstract byte readByte();

Source Link

Document

Gets a byte at the current readerIndex and increases the readerIndex by 1 in this buffer.

Usage

From source file:com.cloudhopper.smpp.pdu.BaseSm.java

License:Apache License

@Override
public void readBody(ByteBuf buffer) throws UnrecoverablePduException, RecoverablePduException {
    this.serviceType = ChannelBufferUtil.readNullTerminatedString(buffer);
    this.sourceAddress = ChannelBufferUtil.readAddress(buffer);
    this.destAddress = ChannelBufferUtil.readAddress(buffer);
    this.esmClass = buffer.readByte();
    this.protocolId = buffer.readByte();
    this.priority = buffer.readByte();
    this.scheduleDeliveryTime = ChannelBufferUtil.readNullTerminatedString(buffer);
    this.validityPeriod = ChannelBufferUtil.readNullTerminatedString(buffer);
    this.registeredDelivery = buffer.readByte();
    this.replaceIfPresent = buffer.readByte();
    this.dataCoding = buffer.readByte();
    this.defaultMsgId = buffer.readByte();
    // this is always an unsigned version of the short message length
    short shortMessageLength = buffer.readUnsignedByte();
    this.shortMessage = new byte[shortMessageLength];
    buffer.readBytes(this.shortMessage);
}

From source file:com.cloudhopper.smpp.pdu.DataSm.java

License:Apache License

@Override
public void readBody(ByteBuf buffer) throws UnrecoverablePduException, RecoverablePduException {
    this.serviceType = ChannelBufferUtil.readNullTerminatedString(buffer);
    this.sourceAddress = ChannelBufferUtil.readAddress(buffer);
    this.destAddress = ChannelBufferUtil.readAddress(buffer);
    this.esmClass = buffer.readByte();
    this.registeredDelivery = buffer.readByte();
    this.dataCoding = buffer.readByte();
}

From source file:com.cloudhopper.smpp.pdu.QuerySmResp.java

License:Apache License

@Override
public void readBody(ByteBuf buffer) throws UnrecoverablePduException, RecoverablePduException {
    this.messageId = ChannelBufferUtil.readNullTerminatedString(buffer);
    this.finalDate = ChannelBufferUtil.readNullTerminatedString(buffer);
    this.messageState = buffer.readByte();
    this.errorCode = buffer.readByte();
}

From source file:com.cloudhopper.smpp.type.Address.java

License:Apache License

public void read(ByteBuf buffer) throws UnrecoverablePduException, RecoverablePduException {
    this.ton = buffer.readByte();
    this.npi = buffer.readByte();
    this.address = ChannelBufferUtil.readNullTerminatedString(buffer);
}

From source file:com.cloudhopper.smpp.util.ChannelBufferUtil.java

License:Apache License

/**
 * Reads a C-String (null terminated) from a buffer.  This method will
 * attempt to find the null byte and read all data up to and including
 * the null byte.  The returned String does not include the null byte.
 * Will throw an exception if no null byte is found and it runs out of data
 * in the buffer to read.//  w  w  w  .j av  a2 s.c  o  m
 * @param buffer
 * @return
 * @throws TerminatingNullByteNotFoundException
 */
static public String readNullTerminatedString(ByteBuf buffer) throws TerminatingNullByteNotFoundException {
    // maximum possible length are the readable bytes in buffer
    int maxLength = buffer.readableBytes();

    // if there are no readable bytes, return null
    if (maxLength == 0) {
        return null;
    }

    // the reader index is defaulted to the readerIndex
    int offset = buffer.readerIndex();
    int zeroPos = 0;

    // search for NULL byte until we hit end or find it
    while ((zeroPos < maxLength) && (buffer.getByte(zeroPos + offset) != 0x00)) {
        zeroPos++;
    }

    if (zeroPos >= maxLength) {
        // a NULL byte was not found
        throw new TerminatingNullByteNotFoundException(
                "Terminating null byte not found after searching [" + maxLength + "] bytes");
    }

    // at this point, we found a terminating zero
    String result = null;
    if (zeroPos > 0) {
        // read a new byte array
        byte[] bytes = new byte[zeroPos];
        buffer.readBytes(bytes);
        try {
            result = new String(bytes, "ISO-8859-1");
        } catch (UnsupportedEncodingException e) {
            logger.error("Impossible error", e);
        }
    } else {
        result = "";
    }

    // at this point, we have just one more byte to skip over (the null byte)
    byte b = buffer.readByte();
    if (b != 0x00) {
        logger.error("Impossible error: last byte read SHOULD have been a null byte, but was [" + b + "]");
    }

    return result;
}

From source file:com.cloudhopper.smpp.util.ChannelBufferUtilTest.java

License:Apache License

@Test
public void readNullTerminatedString() throws Exception {
    // normal case with a termination zero
    ByteBuf buffer0 = BufferHelper.createBuffer("343439353133363139323000");
    String str0 = ChannelBufferUtil.readNullTerminatedString(buffer0);
    Assert.assertEquals("44951361920", str0);
    // make sure the entire buffer is still there we started with
    Assert.assertEquals(0, buffer0.readableBytes());

    // another case with an extra byte after NULL byte
    buffer0 = BufferHelper.createBuffer("343439353133363139323000FF");
    str0 = ChannelBufferUtil.readNullTerminatedString(buffer0);
    Assert.assertEquals("44951361920", str0);
    // make sure the entire buffer is still there we started with
    Assert.assertEquals(1, buffer0.readableBytes());

    // another case with an first extra byte
    buffer0 = BufferHelper.createBuffer("39343439353133363139323000");
    buffer0.readByte(); // skip 1 byte
    str0 = ChannelBufferUtil.readNullTerminatedString(buffer0);
    Assert.assertEquals("44951361920", str0);
    // make sure the entire buffer is still there we started with
    Assert.assertEquals(0, buffer0.readableBytes());

    // another case with an first extra byte and last extra byte
    buffer0 = BufferHelper.createBuffer("39343439353133363139323000FF");
    buffer0.readByte(); // skip 1 byte
    str0 = ChannelBufferUtil.readNullTerminatedString(buffer0);
    Assert.assertEquals("44951361920", str0);
    // make sure the entire buffer is still there we started with
    Assert.assertEquals(1, buffer0.readableBytes());

    // another case with an empty string
    buffer0 = BufferHelper.createBuffer("00");
    str0 = ChannelBufferUtil.readNullTerminatedString(buffer0);
    Assert.assertEquals("", str0);
    // make sure the entire buffer is still there we started with
    Assert.assertEquals(0, buffer0.readableBytes());

    // another case with an empty string and last extra byte
    buffer0 = BufferHelper.createBuffer("0039");
    str0 = ChannelBufferUtil.readNullTerminatedString(buffer0);
    Assert.assertEquals("", str0);
    // make sure the entire buffer is still there we started with
    Assert.assertEquals(1, buffer0.readableBytes());

    // no bytes left to read in buffer will return null
    buffer0 = BufferHelper.createBuffer("");
    str0 = ChannelBufferUtil.readNullTerminatedString(buffer0);
    Assert.assertNull(str0);//  w  ww  .jav a  2  s  .c o m
    Assert.assertEquals(0, buffer0.readableBytes());

    // no terminating zero
    try {
        buffer0 = BufferHelper.createBuffer("39");
        str0 = ChannelBufferUtil.readNullTerminatedString(buffer0);
        Assert.fail();
    } catch (TerminatingNullByteNotFoundException e) {
        // correct behavior
        Assert.assertEquals(1, buffer0.readableBytes());
    }

    // unsupported latin-1 chars?
    buffer0 = BufferHelper.createBuffer("0100");
    str0 = ChannelBufferUtil.readNullTerminatedString(buffer0);
    // correct behavior
    Assert.assertEquals(0, buffer0.readableBytes());
}

From source file:com.codeabovelab.dm.platform.http.async.ByteBufHolderAdapter.java

License:Apache License

@Override
public int readByte(ByteBufHolder chunk) {
    ByteBuf buf = chunk.content();
    if (buf.readableBytes() == 0) {
        return ChunkedInputStream.EOF;
    }/*from   w  w w .j  a  va 2  s .  com*/
    return buf.readByte();
}

From source file:com.codnos.dbgp.internal.handlers.DBGpCommandDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> objects) throws Exception {
    int nullPosition = in.forEachByte(ByteProcessor.FIND_NUL);
    if (nullPosition < 0)
        return;// ww  w .j av a 2s  .c o  m
    int length = nullPosition - in.readerIndex();
    ByteBuf msgBuffer = in.readBytes(length);
    in.readByte();
    objects.add(msgBuffer.toString(UTF_8));
    msgBuffer.release();
}

From source file:com.codnos.dbgp.internal.handlers.DBGpResponseDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> objects) throws Exception {
    final int length = in.readableBytes();
    LOGGER.fine("got something from engine (" + length + " bytes)");
    int nullPosition = in.forEachByte(ByteProcessor.FIND_NUL);
    int readerIndex = in.readerIndex();
    int numberOfBytes = nullPosition - readerIndex;
    LOGGER.fine("found nullposition on " + nullPosition + " and readerIndex is " + readerIndex
            + " calculated number of bytes " + numberOfBytes);
    if (numberOfBytes <= 0) {
        LOGGER.fine("not enough to read, finishing");
        in.resetReaderIndex();//from  w  ww .  j a  va  2s  .com
        return;
    }
    if (nullPosition > length) {
        LOGGER.fine("have null position further than length, finishing");
        in.resetReaderIndex();
        return;
    }
    ByteBuf sizeBuf = in.readBytes(numberOfBytes);
    in.readByte();
    String sizeBufAsString = sizeBuf.toString(UTF_8);
    int size = Integer.parseInt(sizeBufAsString);
    int expectedSize = sizeBuf.readableBytes() + NULL_BYTE_SIZE + size + NULL_BYTE_SIZE;
    if (length < expectedSize) {
        LOGGER.fine("don't have the whole message yet (expected " + expectedSize + "), finishing");
        in.resetReaderIndex();
        sizeBuf.release();
        return;
    }
    ByteBuf messageBuf = in.readBytes(size);
    in.readByte();
    objects.add(messageBuf.toString(UTF_8));
    sizeBuf.release();
    messageBuf.release();
}

From source file:com.comphenix.protocol.injector.netty.WirePacket.java

License:Open Source License

public static int readVarInt(ByteBuf input) {
    checkNotNull(input, "input cannot be null!");

    int i = 0;/*from w w  w  .j  a  v a 2 s .  co m*/
    int j = 0;

    byte b0;

    do {
        b0 = input.readByte();
        i |= (b0 & 127) << j++ * 7;
        if (j > 5) {
            throw new RuntimeException("VarInt too big");
        }
    } while ((b0 & 128) == 128);

    return i;
}