Examples with EventContext org.ballerinalang.nativeimpl.io.events.EventContext used on opensource projects

Example 26 with EventContext

use of org.ballerinalang.nativeimpl.io.events.EventContext in project ballerina by ballerina-lang.

the class Read method execute.

/**
 * <p>
 * Reads bytes from a given channel.
 * </p>
 * <p>
 * {@inheritDoc}
 */
@Override
public void execute(Context context, CallableUnitCallback callback) {
    BStruct channel = (BStruct) context.getRefArgument(BYTE_CHANNEL_INDEX);
    int nBytes = (int) context.getIntArgument(NUMBER_OF_BYTES_INDEX);
    int arraySize = nBytes <= 0 ? IOConstants.CHANNEL_BUFFER_SIZE : nBytes;
    Channel byteChannel = (Channel) channel.getNativeData(IOConstants.BYTE_CHANNEL_NAME);
    byte[] content = new byte[arraySize];
    EventContext eventContext = new EventContext(context, callback);
    IOUtils.read(byteChannel, content, eventContext, Read::readResponse);
}

Example 27 with EventContext

use of org.ballerinalang.nativeimpl.io.events.EventContext in project ballerina by ballerina-lang.

the class ReadCharacters method readCharactersResponse.

/*
     * Callback method of the read characters response.
     *
     * @param result the result returned as the response.
     * @return the processed event result.
     */
private static EventResult readCharactersResponse(EventResult<String, EventContext> result) {
    BStruct errorStruct = null;
    EventContext eventContext = result.getContext();
    Context context = eventContext.getContext();
    CallableUnitCallback callback = eventContext.getCallback();
    String readChars = result.getResponse();
    Throwable error = eventContext.getError();
    if (null != error) {
        errorStruct = IOUtils.createError(context, error.getMessage());
        context.setReturnValues(errorStruct);
    } else {
        context.setReturnValues(new BString(readChars));
    }
    callback.notifySuccess();
    return result;
}