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Java ChannelBuffer.getUnsignedByte方法代碼示例

本文整理匯總了Java中org.jboss.netty.buffer.ChannelBuffer.getUnsignedByte方法的典型用法代碼示例。如果您正苦於以下問題：Java ChannelBuffer.getUnsignedByte方法的具體用法？Java ChannelBuffer.getUnsignedByte怎麽用？Java ChannelBuffer.getUnsignedByte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.getUnsignedByte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 {

    // Strip not '$' (0x24) bytes from the beginning
    while (buf.readable() && buf.getUnsignedByte(buf.readerIndex()) != 0x24) {
        buf.readByte();
    }

    // Check length and return buffer
    if (buf.readableBytes() >= MESSAGE_HEADER) {
        int length = buf.getUnsignedShort(buf.readerIndex() + 2);
        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:MeiligaoFrameDecoder.java

示例2: 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() < 4 + 2) {
        return null;
    }

    int length;
    if (buf.getUnsignedByte(buf.readerIndex()) == 0) {
        length = 2 + buf.getUnsignedShort(buf.readerIndex());
    } else {
        length = 4 + 2 + buf.getUnsignedShort(buf.readerIndex() + 4) + 2;
    }

    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:24，代碼來源:NvsFrameDecoder.java

示例3: readCoordinate

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
private static double readCoordinate(ChannelBuffer buf, boolean lon) {

        int degrees = BcdUtil.readInteger(buf, 2);
        if (lon) {
            degrees = degrees * 10 + (buf.getUnsignedByte(buf.readerIndex()) >> 4);
        }

        double result = 0;
        if (lon) {
            result = buf.readUnsignedByte() & 0x0f;
        }

        int length = 6;
        if (lon) {
            length = 5;
        }

        result = result * 10 + BcdUtil.readInteger(buf, length) * 0.0001;

        result /= 60;
        result += degrees;

        return result;
    }
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:25，代碼來源:H02ProtocolDecoder.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() < BINARY_HEADER) {
        return null;
    }

    if (buf.getUnsignedByte(buf.readerIndex()) == 0xbf) {
        buf.skipBytes(BINARY_HEADER);
    }

    int index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) '\r');
    if (index != -1 && index + 1 < buf.writerIndex()) {
        ChannelBuffer result = buf.readBytes(index - buf.readerIndex());
        buf.skipBytes(2);
        return result;
    }

    return null;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:22，代碼來源:Pt502FrameDecoder.java

示例5: 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) {
        int length = Integer.parseInt(buf.toString(2, 2, StandardCharsets.US_ASCII)) + 5;
        if (buf.readableBytes() >= length) {
            ChannelBuffer frame = buf.readBytes(length);
            while (buf.readable() && buf.getUnsignedByte(buf.readerIndex()) != '$') {
                buf.readByte();
            }
            return frame;
        }
    }

    return null;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:18，代碼來源:Gps056FrameDecoder.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() < 20) {
        return null;
    }

    // Swap byte order for legacy protocol
    if (buf.getUnsignedByte(buf.readerIndex()) == 0x80) {
        int length = buf.readableBytes();
        byte[] bytes = new byte[length];
        buf.getBytes(buf.readerIndex(), bytes);

        ChannelBuffer result = (ChannelBuffer) super.decode(
                ctx, channel, ChannelBuffers.wrappedBuffer(ByteOrder.LITTLE_ENDIAN, bytes));
        if (result != null) {
            buf.skipBytes(result.readableBytes());
        }
        return result;
    }

    return super.decode(ctx, channel, buf);
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:27，代碼來源:TramigoFrameDecoder.java

示例7: readFloat

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
public float readFloat(ChannelBuffer buf) {
    switch (buf.getUnsignedByte(buf.readerIndex()) >> 6) {
        case 0:
            previousFloat = buf.readInt() << 2;
            break;
        case 1:
            previousFloat = (previousFloat & 0xffffff00) + ((buf.readUnsignedByte() & 0x3f) << 2);
            break;
        case 2:
            previousFloat = (previousFloat & 0xffff0000) + ((buf.readUnsignedShort() & 0x3fff) << 2);
            break;
        case 3:
            previousFloat = (previousFloat & 0xff000000) + ((buf.readUnsignedMedium() & 0x3fffff) << 2);
            break;
        default:
            Log.warning(new IllegalArgumentException());
            break;
    }
    return Float.intBitsToFloat(previousFloat);
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:21，代碼來源:Mta6ProtocolDecoder.java

示例8: 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 {

    // Skip Alive message
    while (buf.readable() && Character.isDigit(buf.getByte(buf.readerIndex()))) {
        buf.readByte();
    }

    // Check minimum length
    if (buf.readableBytes() < 11) {
        return null;
    }

    // Read flags
    int version = buf.getUnsignedByte(buf.readerIndex() + 1);
    int offset = 1 + 1 + 3;
    if ((version & 0x80) != 0) {
        offset += 4;
    }

    // Get data length
    int length = buf.getUnsignedShort(buf.readerIndex() + offset);
    offset += 2;
    if ((version & 0x40) != 0) {
        offset += 3;
    }
    length += offset; // add header

    // Return buffer
    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:37，代碼來源:AplicomFrameDecoder.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 {

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

    char type = (char) buf.getByte(buf.readerIndex());

    if (type == '$') {
        boolean longFormat = buf.getUnsignedByte(buf.readerIndex() + 1) == 0x75;
        int length = buf.getUnsignedShort(buf.readerIndex() + (longFormat ? 8 : 7)) + 10;
        if (length >= buf.readableBytes()) {
            return buf.readBytes(length);
        }
    } else if (type == '(') {
        int endIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) ')');
        if (endIndex != -1) {
            return buf.readBytes(endIndex + 1);
        }
    } else {
        throw new ParseException(null, 0); // unknown message
    }

    return null;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:28，代碼來源:Jt600FrameDecoder.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 {

    // Check minimum length
    if (buf.readableBytes() < 12) {
        return null;
    }

    int length;
    switch (buf.getUnsignedByte(buf.readerIndex())) {
        case AutoFonProtocolDecoder.MSG_LOGIN:
            length = 12;
            break;
        case AutoFonProtocolDecoder.MSG_LOCATION:
            length = 78;
            break;
        case AutoFonProtocolDecoder.MSG_HISTORY:
            length = 257;
            break;
        case AutoFonProtocolDecoder.MSG_45_LOGIN:
            length = 19;
            break;
        case AutoFonProtocolDecoder.MSG_45_LOCATION:
            length = 34;
            break;
        default:
            length = 0;
            break;
    }

    // Check length and return buffer
    if (length != 0 && buf.readableBytes() >= length) {
        return buf.readBytes(length);
    }

    return null;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:41，代碼來源:AutoFonFrameDecoder.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() < 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: decode

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

    ChannelBuffer buf = (ChannelBuffer) msg;

    if (buf.getUnsignedByte(buf.readerIndex()) == 0xF8) {

        if (channel != null) {
            ChannelBuffer response = ChannelBuffers.dynamicBuffer();
            response.writeByte(0xF8);
            response.writeByte(DATA_GPS);
            response.writeByte(0xFE);
            response.writeShort(buf.getShort(response.writerIndex() - 1 - 2));
            response.writeShort(Checksum.crc16(Checksum.CRC16_XMODEM, response.toByteBuffer(1, 4)));
            response.writeByte(0xF8);
            channel.write(response);
        }

        return decodeBinary(channel, remoteAddress, buf);
    } else {

        if (channel != null) {
            channel.write(ChannelBuffers.copiedBuffer(String.format("*TS01,ACK:%04X#",
                    Checksum.crc16(Checksum.CRC16_XMODEM, buf.toByteBuffer(1, buf.writerIndex() - 2))),
                    StandardCharsets.US_ASCII));
        }

        return decodeText(channel, remoteAddress, buf.toString(StandardCharsets.US_ASCII));
    }
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:32，代碼來源:UlbotechProtocolDecoder.java

示例14: decode

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

    ChannelBuffer buf = (ChannelBuffer) msg;

    if (buf.getUnsignedByte(buf.readerIndex()) == 0x7e) {
        return decodeArMessage(channel, remoteAddress, buf);
    } else {
        return decodeMgMessage(channel, remoteAddress, buf);
    }
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:13，代碼來源:OigoProtocolDecoder.java

示例15: checksum

import org.jboss.netty.buffer.ChannelBuffer; //導入方法依賴的package包/類
private static short checksum(ChannelBuffer buf) {
    short sum = 0;
    for (int i = 0; i < buf.readableBytes(); i++) {
        sum ^= buf.getUnsignedByte(i);
    }
    return sum;
}
開發者ID:bamartinezd，項目名稱:traccar-service，代碼行數:8，代碼來源:NavisProtocolDecoder.java


注：本文中的org.jboss.netty.buffer.ChannelBuffer.getUnsignedByte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。