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:io.advantageous.conekt.dns.impl.netty.decoder.AddressDecoder.java

License:Open Source License

/**
 * Returns an {@link java.net.InetAddress} containing a decoded address from either an A
 * or AAAA resource record.//from w  ww . j  av  a 2  s. co m
 *
 * @param response the {@link DnsResponse} received that contained the resource
 *                 record being decoded
 * @param resource the {@link DnsResource} being decoded
 */
@Override
public InetAddress decode(DnsResponse response, DnsResource resource) {
    ByteBuf data = resource.content().copy().readerIndex(response.originalIndex());
    int size = data.writerIndex() - data.readerIndex();
    if (data.readerIndex() != 0 || size != octets) {
        throw new DecoderException("Invalid content length, or reader index when decoding address [index: "
                + data.readerIndex() + ", expected length: " + octets + ", actual: " + size + "].");
    }
    byte[] address = new byte[octets];
    data.getBytes(data.readerIndex(), address);
    try {
        return InetAddress.getByAddress(address);
    } catch (UnknownHostException e) {
        throw new DecoderException("Could not convert address "
                + data.toString(data.readerIndex(), size, CharsetUtil.UTF_8) + " to InetAddress.");
    }
}

---

From source file:io.advantageous.conekt.dns.impl.netty.decoder.TextDecoder.java

License:Open Source License

/**
 * Returns a decoded TXT (text) resource record, stored as an
 * {@link java.util.ArrayList} of {@code String}s.
 *
 * @param response the DNS response that contains the resource record being
 *                 decoded/*from   ww w  .j  a v a  2 s .  co  m*/
 * @param resource the resource record being decoded
 */
@Override
public List<String> decode(DnsResponse response, DnsResource resource) {
    List<String> list = new ArrayList<>();
    ByteBuf data = resource.content().readerIndex(response.originalIndex());
    int index = data.readerIndex();
    while (index < data.writerIndex()) {
        int len = data.getUnsignedByte(index++);
        list.add(data.toString(index, len, CharsetUtil.UTF_8));
        index += len;
    }
    return list;
}

---

From source file:io.advantageous.conekt.dns.impl.netty.DnsResponseDecoder.java

License:Open Source License

/**
 * Retrieves a domain name given a buffer containing a DNS packet without
 * advancing the readerIndex for the buffer.
 *
 * @param buf    the byte buffer containing the DNS packet
 * @param offset the position at which the name begins
 * @return the domain name for an entry/*  w w  w .j a  va  2 s.  c  o  m*/
 */
public static String getName(ByteBuf buf, int offset) {
    StringBuilder name = new StringBuilder();
    for (int len = buf.getUnsignedByte(offset++); buf.writerIndex() > offset
            && len != 0; len = buf.getUnsignedByte(offset++)) {
        boolean pointer = (len & 0xc0) == 0xc0;
        if (pointer) {
            offset = (len & 0x3f) << 8 | buf.getUnsignedByte(offset++);
        } else {
            name.append(buf.toString(offset, len, CharsetUtil.UTF_8)).append(".");
            offset += len;
        }
    }
    if (name.length() == 0) {
        return null;
    }
    return name.substring(0, name.length() - 1);
}

---

From source file:io.advantageous.conekt.http.impl.HttpClientRequestImpl.java

License:Open Source License

private void write(ByteBuf buff, boolean end) {
    int readableBytes = buff.readableBytes();
    if (readableBytes == 0 && !end) {
        // nothing to write to the connection just return
        return;/*from  ww  w .j av a  2  s  .  co m*/
    }

    if (end) {
        completed = true;
    }
    if (!end && !chunked && !contentLengthSet()) {
        throw new IllegalStateException(
                "You must set the Content-Length header to be the total size of the message "
                        + "body BEFORE sending any data if you are not using HTTP chunked encoding.");
    }

    written += buff.readableBytes();
    if (conn == null) {
        if (pendingChunks == null) {
            pendingChunks = buff;
        } else {
            CompositeByteBuf pending;
            if (pendingChunks instanceof CompositeByteBuf) {
                pending = (CompositeByteBuf) pendingChunks;
            } else {
                pending = Unpooled.compositeBuffer();
                pending.addComponent(pendingChunks).writerIndex(pendingChunks.writerIndex());
                pendingChunks = pending;
            }
            pending.addComponent(buff).writerIndex(pending.writerIndex() + buff.writerIndex());
        }
        connect();
    } else {
        if (!headWritten) {
            writeHeadWithContent(buff, end);
        } else {
            if (end) {
                if (buff.isReadable()) {
                    conn.writeToChannel(new DefaultLastHttpContent(buff, false));
                } else {
                    conn.writeToChannel(LastHttpContent.EMPTY_LAST_CONTENT);
                }
            } else {
                conn.writeToChannel(new DefaultHttpContent(buff));
            }
        }
        if (end) {
            conn.reportBytesWritten(written);

            if (respHandler != null) {
                conn.endRequest();
            }
        }
    }
}

---

From source file:io.airlift.drift.transport.netty.codec.TestThriftFramedDecoder.java

License:Apache License

@Test
public void testChunked() {
    byte[] first = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
    byte[] second = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
    byte[] third = new byte[] { 5, 4, 3 };

    try (TestingPooledByteBufAllocator allocator = new TestingPooledByteBufAllocator()) {
        ByteBuf buffer = allocator.buffer(1024);

        ThriftFramedDecoder decoder = createDecoder(second.length);
        ByteBuf decoded = decode(decoder, buffer);
        assertNull(decoded);//www  .j a va 2s  .  c o  m

        // write a partial frame length
        buffer.writeByte(0xAB);
        decoded = decode(decoder, buffer);
        assertNull(decoded);
        assertEquals(buffer.readerIndex(), 0);
        assertEquals(buffer.writerIndex(), 1);

        // write only a frame length
        buffer.writerIndex(0);
        buffer.writeInt(first.length);
        decoded = decode(decoder, buffer);
        assertNull(decoded);
        assertEquals(buffer.readerIndex(), 0);
        assertEquals(buffer.writerIndex(), Integer.BYTES);

        // start writing a frame
        buffer.writeBytes(first, 0, 5);
        decoded = decode(decoder, buffer);
        assertNull(decoded);
        assertEquals(buffer.readerIndex(), 0);
        assertEquals(buffer.writerIndex(), Integer.BYTES + 5);

        // finish writing a frame
        buffer.writeBytes(first, 5, first.length - 5);
        decoded = decode(decoder, buffer);
        assertNotNull(decoded);
        assertContentEquals(decoded, first);
        decoded.release();

        // write the first frame
        writeLengthPrefixedFrame(buffer, second);
        // start writing the second frame
        buffer.writeInt(third.length);
        buffer.writeBytes(third, 0, 1);
        // decode the first frame
        decoded = decode(decoder, buffer);
        assertNotNull(decoded);
        assertContentEquals(decoded, second);
        decoded.release();

        // try decode the second frame
        decoded = decode(decoder, buffer);
        assertNull(decoded);

        // finish writing the second frame
        buffer.writeBytes(third, 1, third.length - 1);
        decoded = decode(decoder, buffer);
        assertNotNull(decoded);
        assertContentEquals(decoded, third);
        decoded.release();

        assertEquals(buffer.readerIndex(), buffer.writerIndex());

        buffer.release();
    }
}

---

From source file:io.codis.nedis.handler.RedisResponseDecoder.java

License:Apache License

private void setReaderIndex(ByteBuf in, int index) {
    in.readerIndex(index == -1 ? in.writerIndex() : index + 1);
}

---

From source file:io.crate.protocols.postgres.ClientMessages.java

License:Apache License

static void sendBindMessage(ByteBuf buffer, String portalName, String statementName, List<Object> params) {
    buffer.writeByte('B');
    byte[] portalBytes = portalName.getBytes(StandardCharsets.UTF_8);
    byte[] statementBytes = statementName.getBytes(StandardCharsets.UTF_8);

    int beforeLengthWriterIndex = buffer.writerIndex();
    buffer.writeInt(0);//  w ww.  j ava2 s. com
    writeCString(buffer, portalBytes);
    writeCString(buffer, statementBytes);
    buffer.writeShort(0); // formatCode use 0 to default to text for all
    buffer.writeShort(params.size());

    int paramsLength = 0;
    for (Object param : params) {
        BytesRef value = DataTypes.STRING.value(param);
        buffer.writeInt(value.length);
        // the strings here are _not_ zero-padded because we specify the length upfront
        buffer.writeBytes(value.bytes, value.offset, value.length);
        paramsLength += 4 + value.length;
    }
    buffer.writeShort(0); // numResultFormatCodes - 0 to default to text for all

    buffer.setInt(beforeLengthWriterIndex, 4 + portalBytes.length + 1 + statementBytes.length + 1 + 2 + // numFormatCodes
            2 + // numParams
            paramsLength + 2); // numResultColumnFormatCodes
}

---

From source file:io.crate.protocols.postgres.types.PGArray.java

License:Apache License

@Override
public int writeAsBinary(ByteBuf buffer, @Nonnull Object value) {
    int dimensions = getDimensions(value);

    List<Integer> dimensionsList = new ArrayList<>();
    buildDimensions((Object[]) value, dimensionsList, dimensions, 1);

    int bytesWritten = 4 + 4 + 4;
    final int lenIndex = buffer.writerIndex();
    buffer.writeInt(0);/*from   w ww  .  jav  a2s.c  om*/
    buffer.writeInt(dimensions);
    buffer.writeInt(1); // flags bit 0: 0=no-nulls, 1=has-nulls
    buffer.writeInt(typElem());

    for (Integer dim : dimensionsList) {
        buffer.writeInt(dim); // upper bound
        buffer.writeInt(dim); // lower bound
        bytesWritten += 8;
    }
    int len = bytesWritten + writeArrayAsBinary(buffer, (Object[]) value, dimensionsList, 1);
    buffer.setInt(lenIndex, len);
    return len;
}

---

From source file:io.datty.msgpack.core.ArrayMessageWriter.java

License:Apache License

@Override
public int skipHeader(int maxSize, ByteBuf sink) {
    int headerIndex = sink.writerIndex();
    int headerSize = getArrayHeaderSize(maxSize);
    for (int i = 0; i != headerSize; ++i) {
        sink.writeByte(0);//w ww  .  ja va 2  s . c  om
    }
    return headerIndex;
}

---

From source file:io.datty.msgpack.core.ArrayMessageWriter.java

License:Apache License

@Override
public void writeHeader(int arraySize, int maxSize, int headerIndex, ByteBuf sink) {
    int checkpoint = sink.writerIndex();
    sink.writerIndex(headerIndex);/*from   w  w  w  . j a va  2 s. c  o m*/
    writeArrayHeader(arraySize, maxSize, sink);
    sink.writerIndex(checkpoint);
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• »