Example usage for io.netty.buffer ByteBuf writerIndex

Introduction

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

Prototype

public abstract int writerIndex();

Source Link

Document

Returns the writerIndex of this buffer.

Usage

From source file:com.quavo.osrs.network.protocol.codec.update.encrypt.XOREncryptionEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext ctx, XOREncryptionResponse msg, ByteBuf out) throws Exception {
    if (msg.getKey() != 0) {
        for (int i = 0; i < out.writerIndex(); i++) {
            out.setByte(i, out.getByte(i) ^ msg.getKey());
        }//from  ww  w  .  j a  v a 2s .  co m
    }

    ctx.pipeline().remove(this);
}

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From source file:com.spotify.ffwd.riemann.RiemannSerialization.java

License:Apache License

public ByteBuf encodeAll0(Collection<Object> messages) throws IOException {
    final Proto.Msg.Builder builder = Proto.Msg.newBuilder();

    for (final Object d : messages) {
        if (d instanceof Metric) {
            builder.addEvents(encodeMetric0((Metric) d));
        } else if (d instanceof Event) {
            builder.addEvents(encodeEvent0((Event) d));
        }/*w  ww.  j  av a2s . co m*/
    }

    final Proto.Msg m = builder.build();

    final ByteBuf work = Unpooled.buffer();

    try (final ByteBufOutputStream output = new ByteBufOutputStream(work)) {
        m.writeTo(output);

        final ByteBuf result = Unpooled.buffer();

        result.writeInt(work.writerIndex());
        result.writeBytes(work);

        return result;
    } finally {
        work.release();
    }
}

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From source file:com.spotify.folsom.client.binary.RequestTestTemplate.java

License:Apache License

protected void assertEOM(final ByteBuf b) {
    assertEquals(b.readerIndex(), b.writerIndex());
}

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From source file:com.spotify.netty.handler.codec.zmtp.ZMTPUtils.java

License:Apache License

/**
 * Create a string from binary data, keeping printable ascii and hex encoding everything else.
 *
 * @param data The data/*from   w w w  . j a  v a 2 s  . c  om*/
 * @return A string representation of the data
 */
public static String toString(final ByteBuf data) {
    if (data == null) {
        return null;
    }
    final StringBuilder sb = new StringBuilder();
    for (int i = data.readerIndex(); i < data.writerIndex(); i++) {
        final byte b = data.getByte(i);
        if (b > 31 && b < 127) {
            if (b == '%') {
                sb.append('%');
            }
            sb.append((char) b);
        } else {
            sb.append('%');
            sb.append(String.format("%02X", b));
        }
    }
    return sb.toString();
}

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From source file:com.spotify.netty4.handler.codec.zmtp.ZMTPFramingDecoder.java

License:Apache License

@Override
protected void decode(final ChannelHandlerContext ctx, final ByteBuf in, final List<Object> out)
        throws ZMTPParsingException {
    while (in.isReadable()) {
        if (!headerParsed) {
            final int mark = in.readerIndex();
            headerParsed = header.read(in);
            if (!headerParsed) {
                // Wait for more data
                in.readerIndex(mark);//from  w w  w  .j  av a 2s. c  o m
                return;
            }
            decoder.header(ctx, header.length(), header.more(), out);
            remaining = header.length();
        }

        final int writerMark = in.writerIndex();
        final int n = (int) min(remaining, in.readableBytes());
        final int readerMark = in.readerIndex();
        in.writerIndex(readerMark + n);
        decoder.content(ctx, in, out);
        in.writerIndex(writerMark);
        final int read = in.readerIndex() - readerMark;
        remaining -= read;
        if (remaining > 0) {
            // Wait for more data
            return;
        }
        if (!header.more()) {
            decoder.finish(ctx, out);
        }
        headerParsed = false;
    }
}

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From source file:com.spotify.netty4.handler.codec.zmtp.ZMTPMessage.java

License:Apache License

/**
 * Create a human readable string representation of binary data, keeping printable ascii and hex
 * encoding everything else./*from  www  .j  av  a  2 s  .  c  o m*/
 *
 * @param data The data
 * @return A human readable string representation of the data.
 */
private static String toString(final ByteBuf data) {
    if (data == null) {
        return null;
    }
    final StringBuilder sb = new StringBuilder();
    for (int i = data.readerIndex(); i < data.writerIndex(); i++) {
        final byte b = data.getByte(i);
        if (b > 31 && b < 127) {
            if (b == '%') {
                sb.append('%');
            }
            sb.append((char) b);
        } else {
            sb.append('%');
            sb.append(String.format("%02X", b));
        }
    }
    return sb.toString();
}

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From source file:com.streamsets.pipeline.lib.parser.net.DelimitedLengthFieldBasedFrameDecoder.java

License:Apache License

/**
 * Returns the number of bytes between the readerIndex of the haystack and
 * the first needle found in the haystack.  -1 is returned if no needle is
 * found in the haystack.//from  w  ww  . ja  v  a 2  s. c  om
 */
private static int indexOf(ByteBuf haystack, ByteBuf needle) {
    for (int i = haystack.readerIndex(); i < haystack.writerIndex(); i++) {
        int haystackIndex = i;
        int needleIndex;
        for (needleIndex = 0; needleIndex < needle.capacity(); needleIndex++) {
            if (haystack.getByte(haystackIndex) != needle.getByte(needleIndex)) {
                break;
            } else {
                haystackIndex++;
                if (haystackIndex == haystack.writerIndex() && needleIndex != needle.capacity() - 1) {
                    return -1;
                }
            }
        }

        if (needleIndex == needle.capacity()) {
            // Found the needle from the haystack!
            return i - haystack.readerIndex();
        }
    }
    return -1;
}

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From source file:com.tesora.dve.db.mysql.libmy.BufferedExecute.java

License:Open Source License

public void marshallMessage(ByteBuf stmtExecuteBuf) {
    //header and type are marshalled by parent class.

    int rowsToFlush = this.size();

    MyNullBitmap nullBitmap = new MyNullBitmap(rowsToFlush * columnsPerTuple,
            MyNullBitmap.BitmapType.EXECUTE_REQUEST);

    //            stmtExecuteBuf.writeByte(MSPComStmtExecuteRequestMessage.TYPE_IDENTIFIER);
    stmtExecuteBuf.writeInt(this.stmtID);
    stmtExecuteBuf.writeZero(1); // flags
    stmtExecuteBuf.writeInt(1); // iteration count
    int nullBitmapIndex = stmtExecuteBuf.writerIndex();
    stmtExecuteBuf.writeZero(nullBitmap.length());

    // write the parameter types, as appropriate
    if (this.needsNewParams) {
        stmtExecuteBuf.writeByte(1);//from  w w w .  j a  v  a2  s  .c  o  m

        for (int i = 0; i < rowsToFlush; ++i) {
            stmtExecuteBuf.writeBytes(metadataFragment.slice());
        }

    } else
        stmtExecuteBuf.writeZero(1);

    // Copy the parameter values, updating the null bitmap
    // null bitmap is 1-based
    int rowsWritten = 0;
    int execStmtColIndex = 1;
    for (Iterator<MyBinaryResultRow> i = this.queuedPackets.iterator(); i.hasNext();) {
        MyBinaryResultRow rowPacketData = i.next();

        //                ByteBuf rowSet = Unpooled.buffer(rowPacketData.binRow.sizeInBytes()).order(ByteOrder.LITTLE_ENDIAN);
        //                rowPacketData.binRow.marshallFullMessage(rowSet);

        //                while (rowSet.isReadable() && rowsToWrite-- > 0) {
        //            System.out.println(siteCtx + "/" + myi + ": adding row");
        //                    int payloadLen = rowSet.readMedium();
        //                    rowSet.skipBytes(1);
        //                    byte packetHeader = rowSet.readByte();
        //                    if (packetHeader != 0)
        //                        throw new PEException("Out-of-sync reading redist rowSet");
        int bitmapSize = MyNullBitmap.computeSize(columnsPerTuple, MyNullBitmap.BitmapType.RESULT_ROW);
        int rowFields = rowPacketData.size();
        for (int colIndex = 1; colIndex <= columnsPerTuple; colIndex++, execStmtColIndex++) {
            //we are looping through target columns, which may exceed the source column count.
            if ((colIndex <= rowFields) && rowPacketData.isNull(colIndex - 1 /* zero based indexing */))
                nullBitmap.setBit(execStmtColIndex);
        }
        //                    rowSet.skipBytes(bitmapSize);

        //                    stmtExecuteBuf.writeBytes(rowSet, payloadLen-bitmapSize-1);
        rowPacketData.marshallRawValues(stmtExecuteBuf);
        ++rowsWritten;

    }

    if (rowsWritten != rowsToFlush) {
        //         System.out.println("At failure " + stmtExecuteBuf + "/" + siteCtx);
        throw new PECodingException("Asked to write " + rowsToFlush + " rows, but only " + rowsWritten
                + " were (" + rowsToFlush + " were made available to flushBuffers)");
    }

    // Go back and set the null bitmap and the payload size
    stmtExecuteBuf.setBytes(nullBitmapIndex, nullBitmap.getBitmapArray());
}

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From source file:com.tesora.dve.db.mysql.portal.protocol.MSPAuthenticateV10MessageMessage.java

License:Open Source License

public static void write(ByteBuf out, String userName, String userPassword, String salt, Charset charset,
        int mysqlCharsetID, int capabilitiesFlag) {
    ByteBuf leBuf = out.order(ByteOrder.LITTLE_ENDIAN);

    int payloadSizeIndex = leBuf.writerIndex();
    leBuf.writeMedium(0);/*from  w w w.j  a  v a2s .  c  om*/
    leBuf.writeByte(1);
    int payloadStartIndex = leBuf.writerIndex();
    leBuf.writeInt(capabilitiesFlag);
    leBuf.writeInt(MAX_PACKET_SIZE);
    //      leBuf.writeByte(serverGreeting.getServerCharsetId());
    leBuf.writeByte(mysqlCharsetID);
    leBuf.writeZero(23);
    leBuf.writeBytes(userName.getBytes(charset));
    leBuf.writeZero(1);

    if ((capabilitiesFlag & ClientCapabilities.CLIENT_SECURE_CONNECTION) > 0) {

        byte[] securePassword = computeSecurePassword(userPassword, salt);
        leBuf.writeByte(securePassword.length);
        leBuf.writeBytes(securePassword);
    } else {
        leBuf.writeBytes(userPassword.getBytes(charset));
        leBuf.writeZero(1);
    }

    leBuf.setMedium(payloadSizeIndex, leBuf.writerIndex() - payloadStartIndex);
}

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From source file:com.tesora.dve.db.mysql.portal.protocol.MSPComStmtExecuteRequestMessage.java

License:Open Source License

@Override
protected void marshall(ParsedData state, ByteBuf destination) {
    ByteBuf leBuf = destination.order(ByteOrder.LITTLE_ENDIAN);
    leBuf.writeByte(TYPE_IDENTIFIER);//ww  w. j  a v a 2  s.c  o m
    leBuf.writeInt((int) state.statementID);
    leBuf.writeByte(state.flags);
    leBuf.writeInt((int) state.iterationCount);
    if (state.metadata == null)
        throw new IllegalStateException("Cannot build execute request, no prepare metadata provided.");

    int numParams = state.metadata.getNumParams();
    if (numParams > 0) {
        MyNullBitmap nullBitmap = new MyNullBitmap(numParams, MyNullBitmap.BitmapType.EXECUTE_REQUEST);
        int bitmapIndex = leBuf.writerIndex();
        leBuf.writeZero(nullBitmap.length());
        if (state.metadata.isNewParameterList()) {
            leBuf.writeByte(1);
            for (MyParameter param : state.metadata.getParameters()) {
                leBuf.writeByte(param.getType().getByteValue());
                leBuf.writeZero(1);
            }
        } else {
            leBuf.writeZero(1);
        }
        List<Object> params = state.values;
        for (int i = 0; i < params.size(); ++i) {
            if (params.get(i) != null)
                DBTypeBasedUtils.getJavaTypeFunc(params.get(i).getClass()).writeObject(leBuf, params.get(i));
            else
                nullBitmap.setBit(i + 1);
        }
        leBuf.setBytes(bitmapIndex, nullBitmap.getBitmapArray());
    }
}

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