Example usage for io.netty.buffer ByteBuf forEachByte

Introduction

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

Prototype

public abstract int forEachByte(ByteProcessor processor);

Source Link

Document

Iterates over the readable bytes of this buffer with the specified processor in ascending order.

Usage

From source file:com.couchbase.client.core.endpoint.view.ViewHandler.java

License:Apache License

/**
 * Finds the position of the correct closing character, taking into account the fact that before the correct one,
 * other sub section with same opening and closing characters can be encountered.
 *
 * @param buf the {@link ByteBuf} where to search for the end of a section enclosed in openingChar and closingChar.
 * @param openingChar the section opening char, used to detect a sub-section.
 * @param closingChar the section closing char, used to detect the end of a sub-section / this section.
 * @return//from w w  w  .  j  a va2s  .com
 */
private static int findSectionClosingPosition(ByteBuf buf, char openingChar, char closingChar) {
    return buf.forEachByte(new ClosingPositionBufProcessor(openingChar, closingChar, true));
}

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From source file:com.heliosapm.streams.collector.groovy.ByteBufReaderSource.java

License:Apache License

/**
  * Returns the index in the buffer of the end of line found.
  * Returns -1 if no end of line was found in the buffer.
  *//*  www .jav  a 2  s .  c om*/
private static int findEndOfLine(final ByteBuf buffer) {
    int i = buffer.forEachByte(ByteProcessor.FIND_LF);
    if (i > 0 && buffer.getByte(i - 1) == '\r') {
        i--;
    }
    return i;
}

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From source file:com.xx_dev.apn.socks.local.FakeHttpClientDecoder.java

License:Apache License

protected void _decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    switch (this.state()) {
    case READ_FAKE_HTTP: {
        int fakeHttpHeadStartIndex = in.readerIndex();

        int fakeHttpHeadEndIndex = in.forEachByte(new ByteBufProcessor() {
            int c = 0;

            @Override//from   w ww  . java  2s.  c o  m
            public boolean process(byte value) throws Exception {

                if (value == '\r' || value == '\n') {
                    c++;
                } else {
                    c = 0;
                }

                //logger.info("value=" + value + ", c=" + c);

                if (c >= 4) {
                    return false;
                } else {
                    return true;
                }
            }
        });

        logger.debug("s: " + fakeHttpHeadStartIndex);
        logger.debug("e: " + fakeHttpHeadEndIndex);

        if (fakeHttpHeadEndIndex == -1) {
            logger.warn("w: " + fakeHttpHeadStartIndex);
            break;
        }

        byte[] buf = new byte[fakeHttpHeadEndIndex - fakeHttpHeadStartIndex + 1];
        in.readBytes(buf, 0, fakeHttpHeadEndIndex - fakeHttpHeadStartIndex + 1);
        String s = TextUtil.fromUTF8Bytes(buf);

        //logger.info(s);

        String[] ss = StringUtils.split(s, "\r\n");

        //System.out.println(s + "" + this + " " + Thread.currentThread().getName());

        for (String line : ss) {
            if (StringUtils.startsWith(line, "X-C:")) {
                String lenStr = StringUtils.trim(StringUtils.split(line, ":")[1]);
                //System.out.println(lenStr + "" + this + " " + Thread.currentThread().getName());
                //System.out.println("*****************************************");
                try {
                    length = Integer.parseInt(lenStr, 16);
                    trafficLogger.info("D," + LocalConfig.ins().getUser() + "," + length);
                } catch (Throwable t) {
                    logger.error("--------------------------------------");
                    logger.error(s + "" + this + " " + Thread.currentThread().getName());
                    logger.error("--------------------------------------");
                }

            }
        }

        this.checkpoint(STATE.READ_CONTENT);
    }
    case READ_CONTENT: {
        if (length > 0) {
            byte[] buf = new byte[length];
            in.readBytes(buf, 0, length);

            byte[] res = new byte[length];

            for (int i = 0; i < length; i++) {
                res[i] = (byte) (buf[i] ^ (LocalConfig.ins().getEncryptKey() & 0xFF));
            }

            ByteBuf outBuf = ctx.alloc().buffer();

            outBuf.writeBytes(res);

            out.add(outBuf);
        }

        this.checkpoint(STATE.READ_FAKE_HTTP);
        break;
    }
    default:
        throw new Error("Shouldn't reach here.");
    }

}

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From source file:com.xx_dev.apn.socks.remote.FakeHttpServerDecoder.java

License:Apache License

protected void _decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    switch (this.state()) {
    case READ_FAKE_HTTP: {
        int fakeHttpHeadStartIndex = in.readerIndex();

        int fakeHttpHeadEndIndex = in.forEachByte(new ByteBufProcessor() {
            int c = 0;

            @Override//from   w w w  .j a  v  a 2 s . c o m
            public boolean process(byte value) throws Exception {

                if (value == '\r' || value == '\n') {
                    c++;
                } else {
                    c = 0;
                }

                //logger.info("value=" + value + ", c=" + c);

                if (c >= 4) {
                    return false;
                } else {
                    return true;
                }
            }
        });

        logger.debug("s: " + fakeHttpHeadStartIndex);
        logger.debug("e: " + fakeHttpHeadEndIndex);

        if (fakeHttpHeadEndIndex == -1) {
            logger.warn("w: " + fakeHttpHeadStartIndex);
            break;
        }

        byte[] buf = new byte[fakeHttpHeadEndIndex - fakeHttpHeadStartIndex + 1];
        in.readBytes(buf, 0, fakeHttpHeadEndIndex - fakeHttpHeadStartIndex + 1);
        String s = TextUtil.fromUTF8Bytes(buf);

        //logger.info(s);

        String[] ss = StringUtils.split(s, "\r\n");

        //System.out.println(s + "" + this + " " + Thread.currentThread().getName());

        for (String line : ss) {
            if (StringUtils.startsWith(line, "X-C:")) {
                String lenStr = StringUtils.trim(StringUtils.split(line, ":")[1]);
                //System.out.println(lenStr + "" + this + " " + Thread.currentThread().getName());
                //System.out.println("*****************************************");
                try {
                    length = Integer.parseInt(lenStr, 16);
                } catch (Throwable t) {
                    logger.error("--------------------------------------");
                    logger.error(s + "" + this + " " + Thread.currentThread().getName());
                    logger.error("--------------------------------------");
                }

            }

            if (StringUtils.startsWith(line, "X-U:")) {
                String user = StringUtils.trim(StringUtils.split(line, ":")[1]);
                ctx.channel().attr(NettyAttributeKey.LINK_USER).set(user);
                logger.info(user);
            }
        }

        this.checkpoint(STATE.READ_CONTENT);
    }
    case READ_CONTENT: {

        trafficLogger.info("U," + ctx.channel().attr(NettyAttributeKey.LINK_USER).get() + "," + length);

        if (length > 0) {

            byte[] buf = new byte[length];
            in.readBytes(buf, 0, length);

            byte[] res = new byte[length];

            for (int i = 0; i < length; i++) {
                res[i] = (byte) (buf[i] ^ (RemoteConfig.ins().getEncryptKey() & 0xFF));
            }

            ByteBuf outBuf = ctx.alloc().buffer();

            outBuf.writeBytes(res);

            out.add(outBuf);
        }

        this.checkpoint(STATE.READ_FAKE_HTTP);
        break;
    }
    default:
        throw new Error("Shouldn't reach here.");
    }

}

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

License:Apache License

private String decodeString(ByteBuf in) throws ProtocolException {
    final StringBuilder buffer = new StringBuilder();
    final MutableBoolean reachCRLF = new MutableBoolean(false);
    setReaderIndex(in, in.forEachByte(new ByteBufProcessor() {

        @Override/* w w w .  j av a  2s.com*/
        public boolean process(byte value) throws Exception {
            if (value == '\n') {
                if ((byte) buffer.charAt(buffer.length() - 1) != '\r') {
                    throw new ProtocolException("Response is not ended by CRLF");
                } else {
                    buffer.setLength(buffer.length() - 1);
                    reachCRLF.setTrue();
                    return false;
                }
            } else {
                buffer.append((char) value);
                return true;
            }
        }
    }));
    return reachCRLF.booleanValue() ? buffer.toString() : null;
}

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

License:Apache License

private Long decodeLong(ByteBuf in) throws ProtocolException {
    byte sign = in.readByte();
    final MutableLong l;
    boolean negative;
    if (sign == '-') {
        negative = true;//from  w  ww.j a v  a  2s  .  c  o  m
        l = new MutableLong(0);
    } else {
        negative = false;
        l = new MutableLong(toDigit(sign));
    }
    final MutableBoolean reachCR = new MutableBoolean(false);
    setReaderIndex(in, in.forEachByte(new ByteBufProcessor() {

        @Override
        public boolean process(byte value) throws Exception {
            if (value == '\r') {
                reachCR.setTrue();
                return false;
            } else {
                if (value >= '0' && value <= '9') {
                    l.setValue(l.longValue() * 10 + toDigit(value));
                } else {
                    throw new ProtocolException("Response is not ended by CRLF");
                }
                return true;
            }
        }
    }));
    if (!reachCR.booleanValue()) {
        return null;
    }
    if (!in.isReadable()) {
        return null;
    }
    if (in.readByte() != '\n') {
        throw new ProtocolException("Response is not ended by CRLF");
    }
    return negative ? -l.longValue() : l.longValue();
}

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From source file:io.lettuce.core.protocol.RedisStateMachine.java

License:Apache License

private int findLineEnd(ByteBuf buffer) {

    int index = buffer.forEachByte(ByteProcessor.FIND_LF);
    return (index > 0 && buffer.getByte(index - 1) == '\r') ? index : -1;
}

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From source file:io.reactiverse.pgclient.UtilTest.java

License:Apache License

private void assertSeparator(String s, int expected) throws Exception {
    ByteBuf buf = Unpooled.buffer();
    buf.writeCharSequence(s, StandardCharsets.UTF_8);
    UTF8StringEndDetector processor = new UTF8StringEndDetector();
    int actual = buf.forEachByte(processor);
    assertEquals(expected, actual);/* w  w  w .  ja v a  2  s . c om*/
}

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From source file:io.reactivex.netty.protocol.http.sse.ServerSentEventDecoder.java

License:Apache License

protected static int scanAndFindColon(ByteBuf byteBuf) {
    return byteBuf.forEachByte(SCAN_COLON_PROCESSOR);
}

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From source file:io.reactivex.netty.protocol.http.sse.ServerSentEventDecoder.java

License:Apache License

protected static int scanAndFindEndOfLine(ByteBuf byteBuf) {
    return byteBuf.forEachByte(SCAN_EOL_PROCESSOR);
}

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