Example usage for io.netty.buffer ByteBuf markReaderIndex

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

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Introduction

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

Prototype

public abstract ByteBuf markReaderIndex();

Source Link

Document

Marks the current readerIndex in this buffer.

Usage

From source file:org.mobicents.protocols.ss7.m3ua.impl.message.MessageFactoryImpl.java

License:Open Source License

public M3UAMessageImpl createMessage(ByteBuf message) {
    int dataLen;/*from w  w w  . j  a va 2s .c  o m*/
    if (message.readableBytes() < 8) {
        return null;
    }

    // obtain message class and type from header
    message.markReaderIndex();
    message.skipBytes(2);
    int messageClass = message.readUnsignedByte();
    int messageType = message.readUnsignedByte();

    // obtain remaining length of the message and prepare buffer
    dataLen = message.readInt() - 8;
    if (message.readableBytes() < dataLen) {
        message.resetReaderIndex();
        return null;
    }

    // construct new message instance
    M3UAMessageImpl messageTemp = this.createMessage(messageClass, messageType);

    // parsing params of this message
    message.markWriterIndex();
    message.writerIndex(message.readerIndex() + dataLen);
    messageTemp.decode(message);
    message.resetWriterIndex();

    return messageTemp;
}

From source file:org.opendaylight.controller.netconf.nettyutil.handler.NetconfXMLToHelloMessageDecoder.java

License:Open Source License

@Override
@VisibleForTesting/*  w w  w. ja  va2 s  . c  o m*/
public void decode(final ChannelHandlerContext ctx, final ByteBuf in, final List<Object> out)
        throws IOException, SAXException, NetconfDocumentedException {
    if (in.readableBytes() == 0) {
        LOG.debug("No more content in incoming buffer.");
        return;
    }

    in.markReaderIndex();
    try {
        if (LOG.isTraceEnabled()) {
            LOG.trace("Received to decode: {}", ByteBufUtil.hexDump(in));
        }

        byte[] bytes = new byte[in.readableBytes()];
        in.readBytes(bytes);

        logMessage(bytes);

        // Extract bytes containing header with additional metadata
        String additionalHeader = null;
        if (startsWithAdditionalHeader(bytes)) {
            // Auth information containing username, ip address... extracted for monitoring
            int endOfAuthHeader = getAdditionalHeaderEndIndex(bytes);
            if (endOfAuthHeader > -1) {
                byte[] additionalHeaderBytes = Arrays.copyOfRange(bytes, 0, endOfAuthHeader + 2);
                additionalHeader = additionalHeaderToString(additionalHeaderBytes);
                bytes = Arrays.copyOfRange(bytes, endOfAuthHeader + 2, bytes.length);
            }
        }

        Document doc = XmlUtil.readXmlToDocument(new ByteArrayInputStream(bytes));

        final NetconfMessage message = getNetconfMessage(additionalHeader, doc);
        if (message instanceof NetconfHelloMessage) {
            Preconditions.checkState(helloReceived == false,
                    "Multiple hello messages received, unexpected hello: %s", message);
            out.add(message);
            helloReceived = true;
            // Non hello message, suspend the message and insert into cache
        } else {
            Preconditions.checkState(helloReceived, "Hello message not received, instead received: %s",
                    message);
            LOG.debug("Netconf message received during negotiation, caching {}", message);
            nonHelloMessages.add(message);
        }
    } finally {
        in.discardReadBytes();
    }
}

From source file:org.opendaylight.controller.netconf.util.handler.NetconfXMLToHelloMessageDecoder.java

License:Open Source License

@Override
@VisibleForTesting//from w w  w.j ava 2 s .  c  o m
public void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    if (in.readableBytes() == 0) {
        LOG.debug("No more content in incoming buffer.");
        return;
    }

    in.markReaderIndex();
    try {
        LOG.trace("Received to decode: {}", ByteBufUtil.hexDump(in));
        byte[] bytes = new byte[in.readableBytes()];
        in.readBytes(bytes);

        logMessage(bytes);

        // Extract bytes containing header with additional metadata
        String additionalHeader = null;
        if (startsWithAdditionalHeader(bytes)) {
            // Auth information containing username, ip address... extracted for monitoring
            int endOfAuthHeader = getAdditionalHeaderEndIndex(bytes);
            if (endOfAuthHeader > -1) {
                byte[] additionalHeaderBytes = Arrays.copyOfRange(bytes, 0, endOfAuthHeader + 2);
                additionalHeader = additionalHeaderToString(additionalHeaderBytes);
                bytes = Arrays.copyOfRange(bytes, endOfAuthHeader + 2, bytes.length);
            }
        }

        Document doc = XmlUtil.readXmlToDocument(new ByteArrayInputStream(bytes));

        final NetconfMessage message;
        if (additionalHeader != null) {
            message = new NetconfHelloMessage(doc,
                    NetconfHelloMessageAdditionalHeader.fromString(additionalHeader));
        } else {
            message = new NetconfHelloMessage(doc);
        }
        out.add(message);
    } finally {
        in.discardReadBytes();
    }
}

From source file:org.opendaylight.netconf.nettyutil.handler.NetconfXMLToHelloMessageDecoder.java

License:Open Source License

@Override
@VisibleForTesting/* w  ww.  ja  va 2 s.  c  o  m*/
public void decode(final ChannelHandlerContext ctx, final ByteBuf in, final List<Object> out)
        throws IOException, SAXException, NetconfDocumentedException {
    if (in.readableBytes() == 0) {
        LOG.debug("No more content in incoming buffer.");
        return;
    }

    in.markReaderIndex();
    try {
        if (LOG.isTraceEnabled()) {
            LOG.trace("Received to decode: {}", ByteBufUtil.hexDump(in));
        }

        byte[] bytes = new byte[in.readableBytes()];
        in.readBytes(bytes);

        logMessage(bytes);

        // Extract bytes containing header with additional metadata
        String additionalHeader = null;
        if (startsWithAdditionalHeader(bytes)) {
            // Auth information containing username, ip address... extracted for monitoring
            int endOfAuthHeader = getAdditionalHeaderEndIndex(bytes);
            if (endOfAuthHeader > -1) {
                byte[] additionalHeaderBytes = Arrays.copyOfRange(bytes, 0, endOfAuthHeader);
                additionalHeader = additionalHeaderToString(additionalHeaderBytes);
                bytes = Arrays.copyOfRange(bytes, endOfAuthHeader, bytes.length);
            }
        }

        Document doc = XmlUtil.readXmlToDocument(new ByteArrayInputStream(bytes));

        final NetconfMessage message = getNetconfMessage(additionalHeader, doc);
        if (message instanceof NetconfHelloMessage) {
            Preconditions.checkState(helloReceived == false,
                    "Multiple hello messages received, unexpected hello: %s", message);
            out.add(message);
            helloReceived = true;
            // Non hello message, suspend the message and insert into cache
        } else {
            Preconditions.checkState(helloReceived, "Hello message not received, instead received: %s",
                    message);
            LOG.debug("Netconf message received during negotiation, caching {}", message);
            nonHelloMessages.add(message);
        }
    } finally {
        in.discardReadBytes();
    }
}

From source file:org.opendaylight.protocol.pcep.impl.PCEPByteToMessageDecoder.java

License:Open Source License

@Override
protected void decode(final ChannelHandlerContext ctx, final ByteBuf in, final List<Object> out) {
    if (!in.isReadable()) {
        LOG.debug("No more content in incoming buffer.");
        return;/*from   w  ww  .  j  ava2 s  .  c o m*/
    }

    in.markReaderIndex();
    LOG.trace("Received to decode: {}", ByteBufUtil.hexDump(in));

    final List<Message> errors = new ArrayList<>();

    try {
        out.add(parse(in, errors));
    } catch (final PCEPDeserializerException e) {
        LOG.debug("Failed to decode protocol message", e);
    }
    in.discardReadBytes();

    if (!errors.isEmpty()) {
        // We have a bunch of messages, send them out
        for (final Object e : errors) {
            ctx.channel().writeAndFlush(e).addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(final ChannelFuture f) {
                    if (!f.isSuccess()) {
                        LOG.warn("Failed to send message {} to socket {}", e, ctx.channel(), f.cause());
                    } else {
                        LOG.trace("Message {} sent to socket {}", e, ctx.channel());
                    }
                }
            });
        }
    }
}

From source file:org.opendaylight.protocol.pcep.spi.UtilsTest.java

License:Open Source License

@Test
public void testXROSubobjectUtil() {
    byte[] expected = { (byte) 0x82, 6, 0, 1, 2, 3 };
    final ByteBuf out = Unpooled.buffer();
    final ByteBuf body = Unpooled.copiedBuffer(new byte[] { 0, 1, 2, 3 });
    body.markReaderIndex();
    XROSubobjectUtil.formatSubobject(2, true, body, out);
    assertArrayEquals(expected, ByteArray.getAllBytes(out));

    expected = new byte[] { 2, 6, 0, 1, 2, 3 };
    out.clear();//  www  . j ava 2s .  c  o  m
    body.resetReaderIndex();
    XROSubobjectUtil.formatSubobject(2, false, body, out);
    assertArrayEquals(expected, ByteArray.getAllBytes(out));

    out.clear();
    body.resetReaderIndex();
    XROSubobjectUtil.formatSubobject(2, null, body, out);
    assertArrayEquals(expected, ByteArray.getAllBytes(out));
}

From source file:org.opendaylight.protocol.pcep.spi.UtilsTest.java

License:Open Source License

@Test
public void testEROSubobjectUtil() {
    byte[] expected = { (byte) 0x82, 6, 0, 1, 2, 3 };
    final ByteBuf out = Unpooled.buffer();
    final ByteBuf body = Unpooled.copiedBuffer(new byte[] { 0, 1, 2, 3 });
    body.markReaderIndex();
    EROSubobjectUtil.formatSubobject(2, true, body, out);
    assertArrayEquals(expected, ByteArray.getAllBytes(out));

    expected = new byte[] { 2, 6, 0, 1, 2, 3 };
    out.clear();/*from www . j  a v  a 2 s.  c  o  m*/
    body.resetReaderIndex();
    EROSubobjectUtil.formatSubobject(2, false, body, out);
    assertArrayEquals(expected, ByteArray.getAllBytes(out));
}

From source file:org.quartzpowered.network.codec.FrameCodec.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    // check for length field readability
    in.markReaderIndex();
    if (!readableVarInt(in)) {
        return;/*from   w ww. j  a v  a 2 s  .  co  m*/
    }

    // check for contents readability
    Buffer buffer = new Buffer(in);
    int length = buffer.readVarInt();
    if (in.readableBytes() < length) {
        in.resetReaderIndex();
        return;
    }

    // read contents into buf
    out.add(in.readBytes(length));
}

From source file:org.ratpackframework.groovy.templating.internal.TemplateParser.java

License:Apache License

public void parse(ByteBuf input, ByteBuf output) throws IOException {
    startScript(output);// www. j ava  2  s .c o m
    byte c;
    while (input.isReadable()) {
        c = input.readByte();
        if (c == '<') {
            input.markReaderIndex();
            c = input.readByte();
            if (c != '%') {
                output.writeBytes(LESS_THAN);
                input.resetReaderIndex();
            } else {
                input.markReaderIndex();
                c = input.readByte();
                if (c == '=') {
                    groovyExpression(input, output);
                } else {
                    input.resetReaderIndex();
                    groovySection(input, output);
                }
            }
            continue; // at least '<' is consumed ... read next chars.
        }
        if (c == '$') {
            input.markReaderIndex();
            c = input.readByte();
            if (c != '{') {
                output.writeBytes(DOLLAR);
                input.resetReaderIndex();
            } else {
                input.markReaderIndex();
                processGSstring(input, output);
            }
            continue; // at least '$' is consumed ... read next chars.
        }
        if (c == '\"') {
            output.writeBytes(BACKSLASH);
        }

        // Handle raw new line characters.
        if (c == '\n' || c == '\r') {
            if (c == '\r') { // on Windows, "\r\n" is a new line.
                input.markReaderIndex();
                c = input.readByte();
                if (c != '\n') {
                    input.resetReaderIndex();
                }
            }
            output.writeByte('\n');
            continue;
        }
        output.writeByte(c);
    }

    endScript(output);
}

From source file:org.spongepowered.clean.network.netty.PacketSplitter.java

License:MIT License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    in.markReaderIndex();
    int numRead = 0;
    int length = 0;
    byte read;/*  w ww  . j  a  v  a2  s . c  om*/
    do {
        if (!in.isReadable()) {
            in.resetReaderIndex();
            return;
        }
        read = in.readByte();
        int value = (read & 0b01111111);
        length |= (value << (7 * numRead));

        numRead++;
        if (numRead > 5) {
            throw new RuntimeException("Error decoding packet, length not a varint!");
        }
    } while ((read & 0b10000000) != 0);
    if (in.readableBytes() >= length) {
        out.add(in.readBytes(length));
    } else {
        in.resetReaderIndex();
    }
}