Example usage for io.netty.buffer ByteBuf readByte

Introduction

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

Prototype

public abstract byte readByte();

Source Link

Document

Gets a byte at the current readerIndex and increases the readerIndex by 1 in this buffer.

Usage

From source file:com.eightkdata.mongowp.bson.netty.DefaultNettyBsonLowLevelReader.java

License:Open Source License

@Override
BsonBoolean readBoolean(@Loose @ModifiesIndexes ByteBuf byteBuf) throws NettyBsonReaderException {
    byte readByte = byteBuf.readByte();
    if (readByte == 0x00) {
        return FalseBsonBoolean.getInstance();
    }//from w  ww  . j  ava 2  s .co  m
    if (readByte == 0x01) {
        return TrueBsonBoolean.getInstance();
    }
    throw new NettyBsonReaderException("Unexpected boolean byte. 0x00 or " + "0x01 was expected, but 0x"
            + UnsignedBytes.toString(readByte, 16) + " was read");
}

From source file:com.eightkdata.mongowp.bson.netty.NettyBsonLowLevelReader.java

License:Open Source License

public BsonValue<?> readArrayEntry(@Loose @ModifiesIndexes ByteBuf byteBuf) throws NettyBsonReaderException {
    BsonType bsonType = ParsingTools.getBsonType(byteBuf.readByte());
    stringReader.skipCString(byteBuf);/*  w w  w .j  a va2  s.c o m*/
    switch (bsonType) {
    case ARRAY:
        return readArray(byteBuf);
    case BINARY:
        return readBinary(byteBuf);
    case DATETIME:
        return readDateTime(byteBuf);
    case DB_POINTER:
        return readDbPointer(byteBuf);
    case DEPRECATED:
        return readDeprecated(byteBuf);
    case DOCUMENT:
        return readDocument(byteBuf);
    case DOUBLE:
        return readDouble(byteBuf);
    case BOOLEAN:
        return readBoolean(byteBuf);
    case INT32:
        return readInt32(byteBuf);
    case INT64:
        return readInt64(byteBuf);
    case JAVA_SCRIPT:
        return readJavaScript(byteBuf);
    case JAVA_SCRIPT_WITH_SCOPE:
        return readJavaScriptWithScope(byteBuf);
    case MAX:
        return readMax(byteBuf);
    case MIN:
        return readMin(byteBuf);
    case NULL:
        return readNull(byteBuf);
    case OBJECT_ID:
        return readObjectId(byteBuf);
    case REGEX:
        return readRegex(byteBuf);
    case STRING:
        return readString(byteBuf);
    case TIMESTAMP:
        return readTimestamp(byteBuf);
    case UNDEFINED:
        return readUndefined(byteBuf);
    default:
        throw new NettyBsonReaderException("Unexpected bson type " + bsonType);
    }
}

From source file:com.eightkdata.mongowp.bson.netty.NettyBsonLowLevelReader.java

License:Open Source License

public Entry<?> readDocumentEntry(@Loose @ModifiesIndexes ByteBuf byteBuf) throws NettyBsonReaderException {
    BsonType bsonType = ParsingTools.getBsonType(byteBuf.readByte());
    String key = stringReader.readCString(byteBuf, true);
    switch (bsonType) {
    case ARRAY:// www.j av a2 s .c om
        return new SimpleEntry<>(key, readArray(byteBuf));
    case BINARY:
        return new SimpleEntry<>(key, readBinary(byteBuf));
    case DATETIME:
        return new SimpleEntry<>(key, readDateTime(byteBuf));
    case DB_POINTER:
        return new SimpleEntry<>(key, readDbPointer(byteBuf));
    case DEPRECATED:
        return new SimpleEntry<>(key, readDeprecated(byteBuf));
    case DOCUMENT:
        return new SimpleEntry<>(key, readDocument(byteBuf));
    case DOUBLE:
        return new SimpleEntry<>(key, readDouble(byteBuf));
    case BOOLEAN:
        return new SimpleEntry<>(key, readBoolean(byteBuf));
    case INT32:
        return new SimpleEntry<>(key, readInt32(byteBuf));
    case INT64:
        return new SimpleEntry<>(key, readInt64(byteBuf));
    case JAVA_SCRIPT:
        return new SimpleEntry<>(key, readJavaScript(byteBuf));
    case JAVA_SCRIPT_WITH_SCOPE:
        return new SimpleEntry<>(key, readJavaScriptWithScope(byteBuf));
    case MAX:
        return new SimpleEntry<>(key, readMax(byteBuf));
    case MIN:
        return new SimpleEntry<>(key, readMin(byteBuf));
    case NULL:
        return new SimpleEntry<>(key, readNull(byteBuf));
    case OBJECT_ID:
        return new SimpleEntry<>(key, readObjectId(byteBuf));
    case REGEX:
        return new SimpleEntry<>(key, readRegex(byteBuf));
    case STRING:
        return new SimpleEntry<>(key, readString(byteBuf));
    case TIMESTAMP:
        return new SimpleEntry<>(key, readTimestamp(byteBuf));
    case UNDEFINED:
        return new SimpleEntry<>(key, readUndefined(byteBuf));
    default:
        throw new NettyBsonReaderException("Unexpected bson type " + bsonType);
    }
}

From source file:com.eightkdata.mongowp.bson.netty.OffHeapValuesNettyBsonLowLevelReader.java

License:Open Source License

@Override
BsonDocument readDocument(@Loose @ModifiesIndexes ByteBuf byteBuf) throws NettyBsonReaderException {
    int length = byteBuf.readInt();
    int significantLenght = length - 4 - 1;

    ByteBuf significantSlice = byteBuf.readSlice(significantLenght);

    byte b = byteBuf.readByte();
    assert b == 0x00;

    ArrayList<BsonDocument.Entry<?>> list = new ArrayList<>();
    while (significantSlice.readableBytes() > 0) {
        Entry<?> entry = readDocumentEntry(significantSlice);
        list.add(entry);//w  w w. j ava2s.c o  m
    }
    return new ListBasedBsonDocument(list);
}

From source file:com.eightkdata.mongowp.bson.netty.OffHeapValuesNettyBsonLowLevelReader.java

License:Open Source License

@Override
BsonBinary readBinary(@Loose @ModifiesIndexes ByteBuf byteBuf) {
    int length = byteBuf.readInt();
    byte subtype = byteBuf.readByte();

    ByteBuf content = byteBuf.readSlice(length);

    return new NettyBsonBsonBinary(subtype, ParsingTools.getBinarySubtype(subtype), content);
}

From source file:com.eightkdata.mongowp.bson.netty.PooledNettyStringReader.java

License:Open Source License

/**
 * A method that reads a C-string from a ByteBuf. This method modified the internal state of the
 * ByteBuf, advancing the read pointer to the position after the cstring.
 *
 * @param buffer//from   ww  w.j a v  a  2  s .c o m
 * @param likelyCacheable
 * @return The C-String as a String object or null if there was no C-String in the ByteBuf
 * @throws com.eightkdata.mongowp.bson.netty.NettyBsonReaderException
 */
@Override
public String readCString(ByteBuf buffer, boolean likelyCacheable) throws NettyBsonReaderException {
    int pos = buffer.bytesBefore(CSTRING_BYTE_TERMINATION);
    if (pos == -1) {
        throw new NettyBsonReaderException("A cstring was expected but no 0x00 byte was found");
    }

    String result = stringPool.fromPool(likelyCacheable, buffer.readSlice(pos));

    buffer.readByte(); // Discard the termination byte

    return result;
}

From source file:com.eightkdata.mongowp.bson.netty.PooledNettyStringReader.java

License:Open Source License

@Override
public ByteBuf readStringAsSlice(@Loose @ModifiesIndexes ByteBuf byteBuf) {
    int stringLength = byteBuf.readInt();
    ByteBuf result = byteBuf.readSlice(stringLength - 1);
    byte b = byteBuf.readByte(); // discard the last 0x00
    assert b == 0x00;

    return result;
}

From source file:com.eightkdata.mongowp.mongoserver.util.ByteBufUtil.java

License:Open Source License

/**
 * A method that reads a C-string from a ByteBuf.
 * This method modified the internal state of the ByteBuf, advancing the read pointer to the position after the
 * cstring./*from  w  w w  .  j  a v a 2s. c  om*/
 *
 * @param buffer
 * @return The C-String as a String object or null if there was no C-String in the ByteBuf
 */
public static String readCString(ByteBuf buffer) {
    int pos = buffer.bytesBefore(CSTRING_BYTE_TERMINATION);
    if (pos == -1) {
        return null;
    }
    byte[] bytes = new byte[pos];
    buffer.readBytes(bytes);
    buffer.readByte(); // Discard the termination byte

    return new String(bytes, Charsets.UTF_8);
}

From source file:com.example.discard.DiscardServerHandler.java

License:Apache License

@Override
public void channelRead(final ChannelHandlerContext ctx, final Object msg) {
    log.info("message coming.");
    final ByteBuf byteBuf = (ByteBuf) msg;
    final EmitterProcessor<Byte> emitter = EmitterProcessor.create();

    // ??? ByteBuf.toString(StandardCharset.UTF_8) ????
    final Mono<String> messageMono = emitter.collectList().map(DiscardServerHandler::unBoxing)
            .map(bs -> new String(bs, StandardCharsets.UTF_8));
    messageMono.subscribe(message -> log.info("received message: {}", message));
    messageMono.doOnTerminate(() -> ReferenceCountUtil.release(byteBuf));

    while (byteBuf.isReadable()) {
        emitter.onNext(byteBuf.readByte());
    }//www  .  ja  va2  s . co  m
    emitter.onComplete();
}

From source file:com.farsunset.cim.sdk.android.filter.ClientMessageDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext arg0, ByteBuf buffer, List<Object> queue) throws Exception {

    /**//ww  w . jav a2  s  .  c  o  m
     * ?3?
     */
    if (buffer.readableBytes() < CIMConstant.DATA_HEADER_LENGTH) {
        return;
    }

    buffer.markReaderIndex();

    buffer.markReaderIndex();

    byte conetnType = buffer.readByte();

    byte lv = buffer.readByte();// int ?
    byte hv = buffer.readByte();// int ?

    int conetnLength = getContentLength(lv, hv);

    // ?????
    if (conetnLength > buffer.readableBytes()) {
        buffer.resetReaderIndex();
        return;
    }

    byte[] dataBytes = new byte[conetnLength];
    buffer.readBytes(dataBytes);

    Object message = mappingMessageObject(dataBytes, conetnType);

    if (message != null) {
        queue.add(message);
    }

}