當前位置: 首頁>>代碼示例>>Java>>正文

Java ChannelBuffer.readerIndex方法代碼示例

本文整理匯總了Java中org.jboss.netty.buffer.ChannelBuffer.readerIndex方法的典型用法代碼示例。如果您正苦於以下問題：Java ChannelBuffer.readerIndex方法的具體用法？Java ChannelBuffer.readerIndex怎麽用？Java ChannelBuffer.readerIndex使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.jboss.netty.buffer.ChannelBuffer的用法示例。


在下文中一共展示了ChannelBuffer.readerIndex方法的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: decode

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
@Override
protected Object decode(
        ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {

    if (buf.readableBytes() < 10) {
        return null;
    }

    int index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) ',');
    if (index != -1) {
        int length = index - buf.readerIndex() + Integer.parseInt(
                buf.toString(buf.readerIndex() + 3, index - buf.readerIndex() - 3, StandardCharsets.US_ASCII));
        if (buf.readableBytes() >= length) {
            return buf.readBytes(length);
        }
    }

    return null;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:20，代碼來源:MeitrackFrameDecoder.java

示例2: decodeJ1708

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
private void decodeJ1708(Position position, ChannelBuffer buf, int length) {

        int end = buf.readerIndex() + length;

        while (buf.readerIndex() < end) {
            int mark = buf.readUnsignedByte();
            int len = BitUtil.between(mark, 0, 6);
            int type = BitUtil.between(mark, 6, 8);
            int id = buf.readUnsignedByte();
            if (type == 3) {
                id += 256;
            }
            String value = ChannelBuffers.hexDump(buf.readBytes(len - 1));
            if (type == 2 || type == 3) {
                position.set("pid" + id, value);
            }
        }
    }
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:19，代碼來源:UlbotechProtocolDecoder.java

示例3: decode

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
@Override
protected Object decode(
        ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {

    int endIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) ')') + 1;
    if (endIndex > 0) {

        ChannelBuffer frame = ChannelBuffers.dynamicBuffer();

        while (buf.readerIndex() < endIndex) {
            int b = buf.readByte();
            if (b == '=') {
                frame.writeByte(buf.readByte() ^ '=');
            } else {
                frame.writeByte(b);
            }
        }

        return frame;

    }

    return null;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:25，代碼來源:Vt200FrameDecoder.java

示例4: decode

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
@Override
protected Object decode(
        ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {

    if (buf.readableBytes() < 80) {
        return null;
    }

    int index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0x02);
    if (index == -1) {
        index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0x04);
        if (index == -1) {
            return null;
        }
    }

    index += 2; // checksum

    if (buf.readableBytes() >= index - buf.readerIndex()) {
        return buf.readBytes(index - buf.readerIndex());
    }

    return null;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:25，代碼來源:L100FrameDecoder.java

示例5: readString

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
private static String readString(ChannelBuffer buf) {
    String result = null;
    int index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0);
    if (index > buf.readerIndex()) {
        result = buf.readBytes(index - buf.readerIndex()).toString(StandardCharsets.US_ASCII);
    }
    buf.readByte();
    return result;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:10，代碼來源:AtrackProtocolDecoder.java

示例6: decode

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
@Override
protected Object decode(
        ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {

    if (buf.readableBytes() < 5) {
        return null;
    }

    int length = 2 + 2; // head and tail

    if (buf.getByte(buf.readerIndex()) == 0x78) {
        length += 1 + buf.getUnsignedByte(buf.readerIndex() + 2);
    } else {
        length += 2 + buf.getUnsignedShort(buf.readerIndex() + 2);
    }

    if (buf.readableBytes() >= length && buf.getUnsignedShort(buf.readerIndex() + length - 2) == 0x0d0a) {
        return buf.readBytes(length);
    }

    int endIndex = buf.readerIndex() - 1;
    do {
        endIndex = buf.indexOf(endIndex + 1, buf.writerIndex(), (byte) 0x0d);
        if (endIndex > 0 && buf.writerIndex() > endIndex + 1 && buf.getByte(endIndex + 1) == 0x0a) {
            return buf.readBytes(endIndex + 2 - buf.readerIndex());
        }
    } while (endIndex > 0);

    return null;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:31，代碼來源:Gt06FrameDecoder.java

示例7: decode

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
@Override
protected Object decode(
        ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {

    if (buf.readableBytes() < 10) {
        return null;
    }

    int beginIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new StringFinder("$$"));
    if (beginIndex == -1) {
        return null;
    } else if (beginIndex > buf.readerIndex()) {
        buf.readerIndex(beginIndex);
    }

    int length;

    int flagIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new StringFinder("AA"));
    if (flagIndex != -1 && flagIndex - beginIndex == 6) {
        length = Integer.parseInt(buf.toString(buf.readerIndex() + 2, 4, StandardCharsets.US_ASCII));
    } else {
        length = Integer.parseInt(buf.toString(buf.readerIndex() + 2, 2, StandardCharsets.US_ASCII), 16);
    }

    if (length <= buf.readableBytes()) {
        return buf.readBytes(length);
    }

    return null;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:31，代碼來源:TotemFrameDecoder.java

示例8: isCompressed

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
@Override
public boolean isCompressed(ChannelBuffer buffer) {
    int offset = buffer.readerIndex();
    return buffer.readableBytes() >= 3 &&
            buffer.getByte(offset) == LZFChunk.BYTE_Z &&
            buffer.getByte(offset + 1) == LZFChunk.BYTE_V &&
            (buffer.getByte(offset + 2) == LZFChunk.BLOCK_TYPE_COMPRESSED || buffer.getByte(offset + 2) == LZFChunk.BLOCK_TYPE_NON_COMPRESSED);
}
開發者ID:baidu，項目名稱:Elasticsearch，代碼行數:9，代碼來源:LZFCompressor.java

示例9: decode

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
@Override
protected Object decode(
        ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {

    buf.readerIndex(buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 'E'));

    int endIndex = buf.indexOf(buf.readerIndex() + 1, buf.writerIndex(), (byte) 'E');
    if (endIndex > 0) {
        return buf.readBytes(endIndex - buf.readerIndex());
    } else {
        return buf.readBytes(buf.readableBytes()); // assume full frame
    }
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:14，代碼來源:EskyFrameDecoder.java

示例10: decode

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
@Override
protected Object decode(
        ChannelHandlerContext ctx,
        Channel channel,
        ChannelBuffer buf) throws Exception {

    if (buf.readableBytes() < 2) {
        return null;
    }

    int index = buf.indexOf(buf.readerIndex() + 1, buf.writerIndex(), (byte) 0x04);
    if (index != -1) {
        ChannelBuffer result = ChannelBuffers.buffer(ByteOrder.LITTLE_ENDIAN, index + 1 - buf.readerIndex());

        while (buf.readerIndex() <= index) {
            int b = buf.readUnsignedByte();
            if (b == 0x10) {
                result.writeByte(buf.readUnsignedByte() - 0x20);
            } else {
                result.writeByte(b);
            }
        }

        return result;
    }

    return null;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:29，代碼來源:MxtFrameDecoder.java

示例11: decode

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
@Override
protected Object decode(
        ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {

    if (buf.readableBytes() < 2) {
        return null;
    }

    int index = buf.indexOf(buf.readerIndex() + 1, buf.writerIndex(), (byte) 0x7e);
    if (index != -1) {
        ChannelBuffer result = ChannelBuffers.buffer(index + 1 - buf.readerIndex());

        while (buf.readerIndex() <= index) {
            int b = buf.readUnsignedByte();
            if (b == 0x7d) {
                int ext = buf.readUnsignedByte();
                if (ext == 0x01) {
                    result.writeByte(0x7d);
                } else if (ext == 0x02) {
                    result.writeByte(0x7e);
                }
            } else {
                result.writeByte(b);
            }
        }

        return result;
    }

    return null;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:32，代碼來源:HuabaoFrameDecoder.java

示例12: decodeObd

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
private void decodeObd(Position position, ChannelBuffer buf, int length) {

        int end = buf.readerIndex() + length;

        while (buf.readerIndex() < end) {
            int parameterLength = buf.getUnsignedByte(buf.readerIndex()) >> 4;
            int mode = buf.readUnsignedByte() & 0x0F;
            position.add(ObdDecoder.decode(mode, ChannelBuffers.hexDump(buf.readBytes(parameterLength - 1))));
        }
    }
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:11，代碼來源:UlbotechProtocolDecoder.java

示例13: isCompressed

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
@Override
public boolean isCompressed(ChannelBuffer buffer) {
    if (buffer.readableBytes() < HEADER.length) {
        return false;
    }
    final int offset = buffer.readerIndex();
    for (int i = 0; i < HEADER.length; ++i) {
        if (buffer.getByte(offset + i) != HEADER[i]) {
            return false;
        }
    }
    return true;
}
開發者ID:baidu，項目名稱:Elasticsearch，代碼行數:14，代碼來源:DeflateCompressor.java

示例14: parsePackedIp4Prefixes

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
/**
 * Parses a message that contains encoded IPv4 network prefixes.
 * <p>
 * The IPv4 prefixes are encoded in the form:
 * <Length, Prefix> where Length is the length in bits of the IPv4 prefix,
 * and Prefix is the IPv4 prefix (padded with trailing bits to the end
 * of an octet).
 *
 * @param totalLength the total length of the data to parse
 * @param message the message with data to parse
 * @return a collection of parsed IPv4 network prefixes
 * @throws BgpMessage.BgpParseException
 */
private static Collection<Ip4Prefix> parsePackedIp4Prefixes(
                                            int totalLength,
                                            ChannelBuffer message)
    throws BgpMessage.BgpParseException {
    Collection<Ip4Prefix> result = new ArrayList<>();

    if (totalLength == 0) {
        return result;
    }

    // Parse the data
    byte[] buffer = new byte[Ip4Address.BYTE_LENGTH];
    int dataEnd = message.readerIndex() + totalLength;
    while (message.readerIndex() < dataEnd) {
        int prefixBitlen = message.readUnsignedByte();
        int prefixBytelen = (prefixBitlen + 7) / 8;     // Round-up
        if (message.readerIndex() + prefixBytelen > dataEnd) {
            String errorMsg = "Malformed Network Prefixes";
            throw new BgpMessage.BgpParseException(errorMsg);
        }

        message.readBytes(buffer, 0, prefixBytelen);
        Ip4Prefix prefix = Ip4Prefix.valueOf(Ip4Address.valueOf(buffer),
                                             prefixBitlen);
        result.add(prefix);
    }

    return result;
}
開發者ID:shlee89，項目名稱:athena，代碼行數:43，代碼來源:BgpUpdate.java

示例15: decode

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
@Override
protected Object decode(
        ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {

    if (buf.readableBytes() >= MESSAGE_HEADER) {
        ChannelBuffer lengthBuffer = ChannelBuffers.dynamicBuffer();
        buf.getBytes(buf.readerIndex() + MESSAGE_HEADER - 4 - 1, lengthBuffer, 4);
        int length = Integer.parseInt(lengthBuffer.toString(StandardCharsets.US_ASCII), 16) + MESSAGE_HEADER + 1;
        if (buf.readableBytes() >= length) {
            ChannelBuffer frame = ChannelBuffers.dynamicBuffer();
            int endIndex = buf.readerIndex() + length;
            while (buf.readerIndex() < endIndex) {
                byte b = buf.readByte();
                if (b == 0x7D) {
                    switch (buf.readByte()) {
                        case 0x01:
                            frame.writeByte(0x7D);
                            break;
                        case 0x02:
                            frame.writeByte(0x5B);
                            break;
                        case 0x03:
                            frame.writeByte(0x5D);
                            break;
                        case 0x04:
                            frame.writeByte(0x2C);
                            break;
                        case 0x05:
                            frame.writeByte(0x2A);
                            break;
                        default:
                            throw new IllegalArgumentException();
                    }
                } else {
                    frame.writeByte(b);
                }
            }
            return frame;
        }
    }

    return null;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:44，代碼來源:WatchFrameDecoder.java


注：本文中的org.jboss.netty.buffer.ChannelBuffer.readerIndex方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。