Example usage for io.netty.buffer Unpooled buffer

List of usage examples for io.netty.buffer Unpooled buffer

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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.mysqlapi.repl.messages.MyLogDeleteRowsPayload.java

License:Open Source License

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

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

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) throws PEException {

    // read event header
    slaveProxyId = cb.readUnsignedInt();
    execTime = cb.readUnsignedInt();/*  w  ww.  ja v  a 2  s .  c o m*/
    dbNameLen = cb.readByte();
    errorCode = cb.readUnsignedShort();
    statusVarsLen = cb.readUnsignedShort();

    statusVars.parseStatusVariables(cb, statusVarsLen);

    dbName = MysqlAPIUtils.readBytesAsString(cb, dbNameLen, 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.MyTableMapLogEvent.java

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    tableId = cb.readInt();//ww  w.jav a 2s. com
    reserved = cb.readShort();
    // 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.MyUserVarLogEvent.java

License:Open Source License

String processVariableValue(ByteBuf cb) throws PEException {
    String value = StringUtils.EMPTY;

    valueType = MyItemResultCode.fromByte(cb.readByte());
    valueCharSet = cb.readInt();/*from   www  .j  a v  a2  s  .  c  om*/
    valueLen = cb.readInt();
    valueBytes = Unpooled.buffer(cb.readableBytes()).order(ByteOrder.LITTLE_ENDIAN);
    valueBytes.writeBytes(cb);

    switch (valueType) {
    case DECIMAL_RESULT:
        value = processDecimalValue(valueBytes, valueLen);
        break;
    case INT_RESULT:
        value = processIntValue(valueBytes, valueLen);
        break;
    case REAL_RESULT:
        value = Double.toString(valueBytes.readDouble());
        break;
    case STRING_RESULT:
        value = "'" + StringUtils.replace(
                MysqlAPIUtils.readBytesAsString(valueBytes, valueLen, CharsetUtil.UTF_8), "'", "''") + "'";
        break;
    case ROW_RESULT:
    default:
        throw new PEException(
                "Unsupported variable type '" + valueType + "' for variable '" + variableName + "'");
    }
    return value;
}

From source file:com.tesora.dve.server.connectionmanager.loaddata.LoadDataBlockExecutor.java

License:Open Source License

static void buildInsertStatement(MyLoadDataInfileContext loadDataInfileContext, List<byte[]> cols,
        List<Object> params) throws PEException {
    if (logger.isDebugEnabled()) {
        logger.debug("Processing datablock: col length = " + cols.size() + ", projection length = "
                + loadDataInfileContext.getProjection().size());
    }//www .  j av a 2  s .c  om

    if (cols.size() < loadDataInfileContext.getProjection().size()) {
        // pad out the remaining columns with empty values
        for (int i = 0; i < loadDataInfileContext.getProjection().size() - cols.size(); i++) {
            cols.add(Unpooled.buffer(0).array());
        }
    }

    if (cols.size() > loadDataInfileContext.getProjection().size()) {
        // mysql lops off the excess columns
        for (int i = cols.size(); i > loadDataInfileContext.getProjection().size(); i--) {
            cols.remove(i - 1);
        }
    }

    if (cols.size() != loadDataInfileContext.getProjection().size()) {
        // should never happen...
        List<String> colData = new ArrayList<String>();
        for (byte[] data : cols) {
            colData.add(new String(data));
        }
        throw new PEException(
                "Expected " + loadDataInfileContext.getProjection().size() + " columns but parsed "
                        + cols.size() + " columns for row data '" + StringUtils.join(colData, ",") + "'");
    }

    ValueConverter converter = ValueConverter.INSTANCE;
    for (int i = 0; i < loadDataInfileContext.getProjection().size(); i++) {
        Object value = null;
        if (cols.get(i).length > 0) {
            value = converter.convert(PECharsetUtils.getString(cols.get(i), loadDataInfileContext.getCharset()),
                    loadDataInfileContext.getProjection().get(i).getType());
            String v = DBTypeBasedUtils.getMysqlTypeFunc(MyFieldType.mapFromNativeType(
                    loadDataInfileContext.getProjection().get(i).getType().getMysqlType().getMysqlType()))
                    .getParamReplacement(value, false);
            if (loadDataInfileContext.getProjection().get(i).getType().isStringType()) {
                v = "'" + StringUtils.replace(PEStringUtils.dequote(v), "'", "\\'") + "'";
            }
            params.add(v);
        } else {
            if (loadDataInfileContext.getProjection().get(i).getType().isStringType()) {
                params.add("''");
            }
        }
    }
}

From source file:com.test.comm.handler.ClientHandler.java

License:Apache License

/**
 * Creates a client-side handler.//from w  w  w  .  j a v  a  2s.c  om
 */
public ClientHandler() {
    firstMessage = Unpooled.buffer(1024);
    for (int i = 0; i < firstMessage.capacity(); i++) {
        firstMessage.writeByte((byte) i);
    }
}

From source file:com.test.zp.netty.EchoClientHandler.java

License:Apache License

/**
 * Creates a client-side handler./*from  w w w.j  a v a  2s . c o m*/
 */
public EchoClientHandler() {
    firstMessage = Unpooled.buffer(EchoClient.SIZE);
    //        for (int i = 0; i < firstMessage.capacity(); i ++) {
    //            firstMessage.writeByte((byte) i);
    //        }
    firstMessage.writeBytes("hello world".getBytes());
}

From source file:com.thomas.netty4.SimpleEchoClientProducerHandler.java

License:Apache License

public ByteBuf genMessage() {
    firstMessage = Unpooled.buffer(SimpleEchoClient.SIZE);
    for (int i = 0; i < firstMessage.capacity(); i++) {
        firstMessage.writeByte((byte) i);
    }//from  ww w  .  j av a  2 s  .c o m
    return firstMessage;
}

From source file:com.topsec.bdc.platform.api.test.echo.EchoClientHandler.java

License:Apache License

/**
 * Creates a client-side handler./*from w w  w .  j a  v a2s.  c o  m*/
 */
public EchoClientHandler() {

    firstMessage = Unpooled.buffer(EchoClient.SIZE);
    for (int i = 0; i < firstMessage.capacity(); i++) {
        firstMessage.writeByte((byte) i);
    }
}

From source file:com.trinity.engine.protocol.MessageLookupService.java

License:Apache License

/**
 * Encodes a message into a stream//from  w w  w.  j a  va  2s . co m
 *
 * @param message the message to encode to the buffer
 * @return a wrapped buffer that contains the header and the body of the message
 * @throws IOException
 */
@SuppressWarnings("unchecked")
public <T extends Message> ByteBuf encode(T message) throws IOException {
    final MessageCodec<Message> codec = (MessageCodec<Message>) getCodec(message.getClass());
    if (codec == null) {
        throw new IOException("Unknown operation class: " + message.getClass());
    }
    final ByteBuf body = codec.encode(message);
    final ByteBuf header = Unpooled.buffer(3).writeByte(codec.getOpcode()).writeShort(body.capacity());
    return Unpooled.wrappedBuffer(header, body);
}