Example usage for io.netty.buffer ByteBuf forEachByte

List of usage examples for io.netty.buffer ByteBuf forEachByte

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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:at.yawk.dbus.protocol.auth.CommandCodec.java

protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    int crlfPos = in.forEachByte(new CRLFFinder());
    if (crlfPos == -1) {
        return;//from   w w w . ja  v a2 s .c o m
    }

    int start = in.readerIndex();
    int end = crlfPos - 1; // remove trailing crlf
    String commandString = in.toString(start, end - start, CHARSET);
    log.trace("Received message {}", commandString);
    in.readerIndex(crlfPos + 1);

    int sep = commandString.indexOf(' ');
    String commandName = sep == -1 ? commandString : commandString.substring(0, sep);
    Function<List<String>, Command> factory = FACTORIES.get(commandName);
    if (factory != null) {
        List<String> args;
        if (sep == -1) {
            args = Collections.emptyList();
        } else {
            args = Arrays.asList(commandString.substring(sep + 1).split(" "));
        }
        out.add(factory.apply(args));
    }
}

From source file:at.yawk.dbus.protocol.LoggingInboundAdapter.java

private void accept(ByteBuf msg) {
    msg.forEachByte(value -> {
        append(value);
        return true;
    });
    flush();
}

From source file:com.codnos.dbgp.internal.handlers.DBGpCommandDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> objects) throws Exception {
    int nullPosition = in.forEachByte(ByteProcessor.FIND_NUL);
    if (nullPosition < 0)
        return;/*from w w w .ja v  a2s .c  om*/
    int length = nullPosition - in.readerIndex();
    ByteBuf msgBuffer = in.readBytes(length);
    in.readByte();
    objects.add(msgBuffer.toString(UTF_8));
    msgBuffer.release();
}

From source file:com.codnos.dbgp.internal.handlers.DBGpResponseDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> objects) throws Exception {
    final int length = in.readableBytes();
    LOGGER.fine("got something from engine (" + length + " bytes)");
    int nullPosition = in.forEachByte(ByteProcessor.FIND_NUL);
    int readerIndex = in.readerIndex();
    int numberOfBytes = nullPosition - readerIndex;
    LOGGER.fine("found nullposition on " + nullPosition + " and readerIndex is " + readerIndex
            + " calculated number of bytes " + numberOfBytes);
    if (numberOfBytes <= 0) {
        LOGGER.fine("not enough to read, finishing");
        in.resetReaderIndex();//  w ww .j av a2 s .  com
        return;
    }
    if (nullPosition > length) {
        LOGGER.fine("have null position further than length, finishing");
        in.resetReaderIndex();
        return;
    }
    ByteBuf sizeBuf = in.readBytes(numberOfBytes);
    in.readByte();
    String sizeBufAsString = sizeBuf.toString(UTF_8);
    int size = Integer.parseInt(sizeBufAsString);
    int expectedSize = sizeBuf.readableBytes() + NULL_BYTE_SIZE + size + NULL_BYTE_SIZE;
    if (length < expectedSize) {
        LOGGER.fine("don't have the whole message yet (expected " + expectedSize + "), finishing");
        in.resetReaderIndex();
        sizeBuf.release();
        return;
    }
    ByteBuf messageBuf = in.readBytes(size);
    in.readByte();
    objects.add(messageBuf.toString(UTF_8));
    sizeBuf.release();
    messageBuf.release();
}

From source file:com.couchbase.client.core.endpoint.util.ByteBufJsonHelper.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.
 *
 * This implementation starts for the current {@link ByteBuf#readerIndex() readerIndex}.
 *
 * @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 the section closing position or -1 if not found.
 *//*www  .  j a  v  a  2s  .  co  m*/
public static int findSectionClosingPosition(ByteBuf buf, char openingChar, char closingChar) {
    return buf.forEachByte(new ClosingPositionBufProcessor(openingChar, closingChar, true));
}

From source file:com.couchbase.client.core.endpoint.util.ByteBufJsonHelper.java

License:Apache License

/**
 * Finds the position of the split character, taking into account the fact that the character
 * could be found escaped in strings (such occurrences are ignored).
 *
 * This implementation starts for the current {@link ByteBuf#readerIndex() readerIndex}.
 *
 * @param buf the {@link ByteBuf} where to search for the split character.
 * @param splitChar the split character to detect.
 * @return the split character position or -1 if not found.
 *//* w  w w . j  a  va  2s  .c o  m*/
public static final int findSplitPosition(ByteBuf buf, char splitChar) {
    return buf.forEachByte(new SplitPositionBufProcessor(splitChar, true));
}

From source file:com.couchbase.client.core.endpoint.util.ClosingPositionBufProcessorTest.java

License:Apache License

@Test
public void shouldFindClosingInSimpleSection() {
    ByteBuf source = Unpooled.copiedBuffer("{ this is simple }", CharsetUtil.UTF_8);
    int closingPos = source.forEachByte(new ClosingPositionBufProcessor('{', '}'));
    assertEquals(17, closingPos);/* w  w w  . j a v  a 2 s.  c o m*/
    assertEquals(0, source.readerIndex());
}

From source file:com.couchbase.client.core.endpoint.util.ClosingPositionBufProcessorTest.java

License:Apache License

@Test
public void shouldNotFindClosingInBrokenSection() {
    ByteBuf source = Unpooled.copiedBuffer("{ this is simple", CharsetUtil.UTF_8);
    int closingPos = source.forEachByte(new ClosingPositionBufProcessor('{', '}'));
    assertEquals(-1, closingPos);/*from   www .  j  a va 2  s  .co  m*/
    assertEquals(0, source.readerIndex());
}

From source file:com.couchbase.client.core.endpoint.util.ClosingPositionBufProcessorTest.java

License:Apache License

@Test
public void shouldFindClosingInSectionWithSubsection() {
    ByteBuf source = Unpooled.copiedBuffer("{ this is { simple } }", CharsetUtil.UTF_8);
    int closingPos = source.forEachByte(new ClosingPositionBufProcessor('{', '}'));
    assertEquals(21, closingPos);/*from w  ww . ja v a 2  s  . c  o  m*/
    assertEquals(0, source.readerIndex());
}

From source file:com.couchbase.client.core.endpoint.util.ClosingPositionBufProcessorTest.java

License:Apache License

@Test
public void shouldNotFindClosingInBrokenSectionWithCompleteSubSection() {
    ByteBuf source = Unpooled.copiedBuffer("{ this is { complex } oups", CharsetUtil.UTF_8);
    int closingPos = source.forEachByte(new ClosingPositionBufProcessor('{', '}'));
    assertEquals(-1, closingPos);/*from   w  w w.  j av a  2  s .  c  om*/
    assertEquals(0, source.readerIndex());
}