Example usage for io.netty.buffer ByteBuf readByte

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

  1. HOME
  2. Java
  3. io.netty
  4. io.netty.buffer.*
  5. ByteBuf
  6. 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.tesora.dve.db.mysql.libmy.MyOKResponse.java

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    cb.readByte(); // field count - always 0
    affectedRows = MysqlAPIUtils.getLengthCodedLong(cb);
    insertId = MysqlAPIUtils.getLengthCodedLong(cb);
    serverStatus = cb.readUnsignedShort();
    warningCount = cb.readUnsignedShort();
    if (cb.isReadable())
        message = MysqlAPIUtils.readBytesAsString(cb, CharsetUtil.UTF_8);
}

From source file:com.tesora.dve.db.mysql.libmy.MyOKResponse.java

License:Open Source License

public static long getAffectedRows(ByteBuf cb) {
    cb.readByte();
    return MysqlAPIUtils.getLengthCodedLong(cb);
}

From source file:com.tesora.dve.db.mysql.portal.protocol.MSPAuthenticateV10MessageMessage.java

License:Open Source License

@Override
protected ParsedData unmarshall(ByteBuf source) {
    ParsedData parseValues = new ParsedData();
    parseValues.caps = new ClientCapabilities(source.readUnsignedInt());
    parseValues.maxPacketSize = source.readInt();
    parseValues.charsetID = source.readByte();

    source.skipBytes(23); // login request has a 23 byte filler
    parseValues.username = source.readSlice(source.bytesBefore((byte) 0)).toString(CharsetUtil.UTF_8);
    source.skipBytes(1); // skip the NULL terminator
    byte passwordLength = source.readByte();
    parseValues.password = source.readSlice(passwordLength).toString(CharsetUtil.ISO_8859_1);

    // if the clientCapabilities flag has the CLIENT_CONNECT_WITH_DB bit set,
    // then this message contains an initial database to connect to
    if (parseValues.caps.connectWithDB()) {
        parseValues.initialDatabase = source.readSlice(source.bytesBefore((byte) 0))
                .toString(CharsetUtil.UTF_8);
        source.skipBytes(1); // skip the NULL terminator
    } else {//  w w  w  .  java 2s  . com
        parseValues.initialDatabase = "";
    }
    return parseValues;
}

From source file:com.tesora.dve.db.mysql.portal.protocol.MSPComStmtExecuteRequestMessage.java

License:Open Source License

@Override
protected ParsedData unmarshall(ByteBuf source) {
    ParsedData parseValues = new ParsedData();
    source.skipBytes(1);//skip the type identifier.
    parseValues.statementID = source.readUnsignedInt();
    parseValues.flags = source.readByte();
    parseValues.iterationCount = source.readUnsignedInt();
    parseValues.metadataOffset = source.readerIndex();

    //we don't actually unmarshall the metadata and values here, since we don't know how many parameters there are.
    parseValues.metadata = null;/*from  ww  w  .ja  v  a 2  s. c  o m*/
    parseValues.values = null;
    return parseValues;
}

From source file:com.tesora.dve.db.mysql.portal.protocol.MSPComStmtExecuteRequestMessage.java

License:Open Source License

public void readParameterMetadata(MyPreparedStatement<String> pStmt) throws PEException {
    //TODO: this belongs in unmarshall, but requires knowledge about the expected number of parameters, provided by a previous prepare response.
    ParsedData cachedParse = readState();
    ByteBuf backingData = readBuffer();/*from   w w w  . j  a  v  a  2  s  . c  o m*/
    int lengthOfMetadata = backingData.readableBytes() - cachedParse.metadataOffset;
    ByteBuf in = backingData.slice(cachedParse.metadataOffset, lengthOfMetadata).order(ByteOrder.LITTLE_ENDIAN);
    if (pStmt.getNumParams() > 0) {
        int nullBitmapLength = (pStmt.getNumParams() + 7) / 8;
        MyNullBitmap nullBitmap = new MyNullBitmap(MysqlAPIUtils.readBytes(in, nullBitmapLength),
                pStmt.getNumParams(), MyNullBitmap.BitmapType.EXECUTE_REQUEST);
        if (in.readByte() == 1) { // this is new params bound flag; only
            // =1 on first stmt_execute
            pStmt.clearParameters();
            for (int i = 0; i < pStmt.getNumParams(); i++) {
                pStmt.addParameter(new MyParameter(MyFieldType.fromByte(in.readByte())));
                in.skipBytes(1);
            }
        }

        for (int paramNum = 1; paramNum <= pStmt.getNumParams(); paramNum++) {
            MyParameter parameter = pStmt.getParameter(paramNum);
            if (nullBitmap.getBit(paramNum)) {
                parameter.setValue(null);
            } else {
                //TODO - may need to figure out how to get the proper flags and length into this call
                parameter.setValue(DBTypeBasedUtils.getMysqlTypeFunc(parameter.getType()).readObject(in));
            }
        }
    }
}

From source file:com.tesora.dve.db.mysql.portal.protocol.MSPServerGreetingRequestMessage.java

License:Open Source License

@Override
public MSPServerGreetingRequestMessage newPrototype(ByteBuf source) {
    final byte messageType = source.readByte();
    source = source.slice();/* ww w. j  a  v  a 2s  .c om*/
    return new MSPServerGreetingRequestMessage(source);
}

From source file:com.tesora.dve.db.mysql.portal.protocol.MysqlClientAuthenticationHandler.java

License:Open Source License

protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out, boolean isLastBytes)
        throws Exception {
    ByteBuf leBuf = in.order(ByteOrder.LITTLE_ENDIAN);

    leBuf.markReaderIndex();//from  w  w  w.  ja  v  a 2 s  .  c  om
    boolean messageProcessed = false;

    try {
        if (leBuf.readableBytes() > MESSAGE_HEADER_LEN) {
            int payloadLen = leBuf.readMedium();
            leBuf.readByte(); // seq

            if (leBuf.readableBytes() >= payloadLen) {
                ByteBuf payload = leBuf.slice(leBuf.readerIndex(), payloadLen).order(ByteOrder.LITTLE_ENDIAN);
                Byte protocolVersion = leBuf.readByte();
                leBuf.skipBytes(payloadLen - 1);
                messageProcessed = true;

                if (state == AuthenticationState.AWAIT_GREETING)
                    processGreeting(ctx, payload, protocolVersion);
                else
                    processAcknowlegement(ctx, payload);
            }
        }

    } catch (Throwable t) {
        enterState(AuthenticationState.FAILURE);
        log.warn("Unexpected problem on outbound mysql connection.", t);
        throw t;
    } finally {
        if (!messageProcessed)
            leBuf.resetReaderIndex();

        if (isLastBytes && (state == AuthenticationState.AWAIT_ACKNOWLEGEMENT
                || state == AuthenticationState.AWAIT_GREETING)) {
            //we are waiting for handshake packets from mysql, but no more packets will ever arrive.  release blocked callers.
            Channel channel = ctx.channel();
            SocketAddress addr = (channel == null ? null : channel.remoteAddress());
            log.warn("Socket closed in middle of authentication handshake on socket " + addr);
            enterState(AuthenticationState.FAILURE);
        }
    }
}

From source file:com.tesora.dve.mysqlapi.repl.messages.MyExecuteLoadLogEvent.java

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) throws PEException {
    threadId = cb.readInt();// w ww  . j a v  a  2s.c o m
    time = cb.readInt();
    dbLen = cb.readByte();
    errorCode = cb.readShort();
    statusBlockLen = cb.readShort();
    fileId = cb.readInt();
    startPos = cb.readInt();
    endPos = cb.readInt();
    duplicateFlag = cb.readByte();
    // really we should check if replication version >=4 or else this is wrong
    statusVars.parseStatusVariables(cb, statusBlockLen);

    dbName = MysqlAPIUtils.readBytesAsString(cb, dbLen, CharsetUtil.UTF_8);
    cb.skipBytes(1); //for trailing 0
    query = Unpooled.buffer(cb.readableBytes());
    query.writeBytes(cb);
    origQuery = query.toString(CharsetUtil.UTF_8);
}

From source file:com.tesora.dve.mysqlapi.repl.messages.MyFormatDescriptionLogEvent.java

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    binaryLogVersion = cb.readShort();/* w  w w.  j  av  a2s . com*/
    serverVersion = MysqlAPIUtils.readBytesAsString(cb, ST_SERVER_VER_LEN, CharsetUtil.UTF_8);
    createTime = cb.readUnsignedInt();
    eventTypeLength = cb.readUnsignedByte();
    int numberOfEntries = cb.readableBytes() - 1;//string is null terminated.

    switch (MyBinLogVerType.fromByte((byte) binaryLogVersion)) {

    case MySQL_5_0:
        for (int i = 1; i <= numberOfEntries; i++) {
            eventTypeValues.put(MyLogEventType.fromByte((byte) i), cb.readByte());
        }
        cb.skipBytes(1);//throw out EOF
        break;

    default:
        // TODO throw????
        logger.error("Cannot process binary log messages that are not for MySQL 5.0");
    }
}

From source file:com.tesora.dve.mysqlapi.repl.messages.MyIntvarLogEvent.java

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    variableType = cb.readByte();
    variableValue = UnsignedLong.valueOf(cb.readLong());
}