Example usage for io.netty.buffer Unpooled buffer

Introduction

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

Prototype

public static ByteBuf buffer(int initialCapacity)

Source Link

Document

Creates a new big-endian Java heap buffer with the specified capacity , which expands its capacity boundlessly on demand.

Usage

From source file:com.tesora.dve.db.mysql.DBTypeBasedUtilsTest.java

License:Open Source License

@Test
public void sqlReadWriteTest() throws Exception {
    ByteBuf cb = Unpooled.buffer(100).order(ByteOrder.LITTLE_ENDIAN);

    for (Pair<Integer, Object> expValue : expValuesSQL) {
        cb.clear();/*from   ww  w.  j  a v a2s.  c om*/
        DataTypeValueFunc dtvf = DBTypeBasedUtils.getSQLTypeFunc(expValue.getFirst());
        dtvf.writeObject(cb, expValue.getSecond());
        assertEqualData(expValue.getSecond(), dtvf.readObject(cb));
    }
}

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

License:Open Source License

public MyBinaryResultRow projection(int[] desiredFields) {
    int expectedFieldCount = desiredFields.length;

    ArrayList<ByteBuf> newSlices = new ArrayList<>(expectedFieldCount);
    ArrayList<DecodedMeta> newConverters = new ArrayList<>(expectedFieldCount);

    for (int targetIndex = 0; targetIndex < expectedFieldCount; targetIndex++) {
        int sourceIndex = desiredFields[targetIndex];
        newConverters.add(fieldConverters.get(sourceIndex));//use the source index, not the target index..
        if (fieldSlices.get(sourceIndex) == null) {
            newSlices.add(null);//  ww w.j  ava  2 s.  c  o m
        } else {
            ByteBuf fieldSlice = fieldSlices.get(sourceIndex);
            ByteBuf copySlice = Unpooled.buffer(fieldSlice.readableBytes()).order(ByteOrder.LITTLE_ENDIAN);
            copySlice.writeBytes(fieldSlice.slice());
            newSlices.add(copySlice);
        }
    }

    return new MyBinaryResultRow(newConverters, newSlices);
}

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

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    ByteBuf newCache = Unpooled.buffer(cb.readableBytes()).order(ByteOrder.LITTLE_ENDIAN);
    newCache.writeBytes(cb);/*from w w w.  j  a  v a2s . c  o  m*/

    updateCache(newCache);

    //parsing variable length name info is expensive, only unpack fixed length type info by default.
    unpackTypeInfo(cachedBuffer.slice());

    state = CacheState.PACKED;
}

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

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    heapBuffer = Unpooled.buffer(cb.readableBytes());
    heapBuffer.writeBytes(cb);
}

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

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    backingBuffer = Unpooled.buffer(cb.readableBytes()).writeBytes(cb).order(ByteOrder.LITTLE_ENDIAN);
    ArrayList<Integer> offsets = MysqlAPIUtils.locateLengthCodedStrings(backingBuffer);
    stringOffsets = new int[offsets.size() + 1];
    for (int i = 0; i < offsets.size(); i++)
        stringOffsets[i] = offsets.get(i);
    stringOffsets[offsets.size()] = backingBuffer.readableBytes();//last entry is (endpoint+1) of the last string.
}

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

License:Open Source License

protected ByteBuf readBuffer() {
    if (isBufferSet())
        return this.buffer;

    if (isStateSet()) {
        ByteBuf container = Unpooled.buffer(INITIAL_CAPACITY).order(ByteOrder.LITTLE_ENDIAN);
        marshall(this.state, container);
        this.set(state, container);
        return this.buffer;
    }//from  w w  w .  j a  v a  2  s.c  o  m

    throw new IllegalStateException(String.format("Cannot access buffer of %s, no fields or buffer provided.",
            this.getClass().getSimpleName()));
}

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

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    fileId = cb.readInt();
    dataBlock = Unpooled.buffer(cb.readableBytes());
    dataBlock.writeBytes(cb);
}

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

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    threadId = cb.readInt();//from www  .  ja  v a 2 s  . com
    // TODO: need to parse out the variable part of the data
    variableData = Unpooled.buffer(cb.readableBytes());
    variableData.writeBytes(cb);
}

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();//from ww w.  ja  v a 2  s . c  om
    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.MyLoadLogEvent.java

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    threadId = cb.readInt();//w  w w. j  a  v  a 2  s  . c  o m
    time = cb.readInt();
    ignoreLines = cb.readInt();
    tableLen = cb.readByte();
    dbLen = cb.readByte();
    columns = cb.readInt();
    // TODO: need to parse out the variable part of the data
    variableData = Unpooled.buffer(cb.readableBytes());
    variableData.writeBytes(cb);
}