Example usage for io.netty.buffer ByteBuf getMediumLE

Introduction

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

Prototype

public abstract int getMediumLE(int index);

Source Link

Document

Gets a 24-bit medium integer at the specified absolute index in this buffer in the Little Endian Byte Order.

Usage

From source file:org.eclipse.milo.opcua.stack.client.transport.uasc.UascClientAcknowledgeHandler.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception {
    int maxChunkSize = config.getMessageLimits().getMaxChunkSize();

    while (buffer.readableBytes() >= HEADER_LENGTH) {
        int messageLength = getMessageLength(buffer, maxChunkSize);

        if (buffer.readableBytes() < messageLength) {
            break;
        }/*from  w  w  w .ja  v  a2 s. c o  m*/

        MessageType messageType = MessageType.fromMediumInt(buffer.getMediumLE(buffer.readerIndex()));

        switch (messageType) {
        case Acknowledge:
            onAcknowledge(ctx, buffer.readSlice(messageLength));
            break;

        case Error:
            onError(ctx, buffer.readSlice(messageLength));
            break;

        default:
            out.add(buffer.readSlice(messageLength).retain());
        }
    }
}

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From source file:org.eclipse.milo.opcua.stack.client.transport.uasc.UascClientMessageHandler.java

License:Open Source License

private void decodeMessage(ChannelHandlerContext ctx, ByteBuf buffer) throws UaException {
    int messageLength = getMessageLength(buffer, maxChunkSize);
    MessageType messageType = MessageType.fromMediumInt(buffer.getMediumLE(buffer.readerIndex()));

    switch (messageType) {
    case OpenSecureChannel:
        onOpenSecureChannel(ctx, buffer.readSlice(messageLength));
        break;//  w ww  .  j av a 2 s  .c o  m

    case SecureMessage:
        onSecureMessage(ctx, buffer.readSlice(messageLength));
        break;

    case Error:
        onError(ctx, buffer.readSlice(messageLength));
        break;

    default:
        throw new UaException(StatusCodes.Bad_TcpMessageTypeInvalid, "unexpected MessageType: " + messageType);
    }
}

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From source file:org.eclipse.milo.opcua.stack.server.transport.uasc.UascServerAsymmetricHandler.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception {
    while (buffer.readableBytes() >= HEADER_LENGTH) {
        int messageLength = getMessageLength(buffer, maxChunkSize);

        if (buffer.readableBytes() < messageLength) {
            break;
        }/* ww w  .  ja  v  a2  s  . c  o  m*/

        MessageType messageType = MessageType.fromMediumInt(buffer.getMediumLE(buffer.readerIndex()));

        switch (messageType) {
        case OpenSecureChannel:
            onOpenSecureChannel(ctx, buffer.readSlice(messageLength));
            break;

        case CloseSecureChannel:
            logger.debug("Received CloseSecureChannelRequest");

            buffer.skipBytes(messageLength);

            if (secureChannelTimeout != null) {
                secureChannelTimeout.cancel();
                secureChannelTimeout = null;
            }

            ctx.close();
            break;

        default:
            throw new UaException(StatusCodes.Bad_TcpMessageTypeInvalid,
                    "unexpected MessageType: " + messageType);
        }
    }
}

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From source file:org.eclipse.milo.opcua.stack.server.transport.uasc.UascServerHelloHandler.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception {
    while (buffer.readableBytes() >= HEADER_LENGTH) {
        int messageLength = getMessageLength(buffer, MAX_HELLO_MESSAGE_SIZE);

        if (buffer.readableBytes() < messageLength) {
            break;
        }/*from  w  ww . j  av a 2s .  c  om*/

        MessageType messageType = MessageType.fromMediumInt(buffer.getMediumLE(buffer.readerIndex()));

        switch (messageType) {
        case Hello:
            onHello(ctx, buffer.readSlice(messageLength));
            break;

        default:
            throw new UaException(StatusCodes.Bad_TcpMessageTypeInvalid,
                    "unexpected MessageType: " + messageType);
        }
    }
}

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From source file:org.eclipse.milo.opcua.stack.server.transport.uasc.UascServerSymmetricHandler.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception {
    while (buffer.readableBytes() >= HEADER_LENGTH) {
        int messageLength = getMessageLength(buffer, maxChunkSize);

        if (buffer.readableBytes() < messageLength) {
            break;
        }//from  w  ww  .  j  av a2  s  . c o  m

        MessageType messageType = MessageType.fromMediumInt(buffer.getMediumLE(buffer.readerIndex()));

        switch (messageType) {
        case SecureMessage:
            onSecureMessage(ctx, buffer.readSlice(messageLength));
            break;

        default:
            out.add(buffer.readSlice(messageLength).retain());
        }
    }
}

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