Examples with StreamSingleTupleExtractor org.apache.ignite.stream.StreamSingleTupleExtractor used on opensource projects

Example 1 with StreamSingleTupleExtractor

use of org.apache.ignite.stream.StreamSingleTupleExtractor in project ignite by apache.

the class IgniteSinkTask method start.

/**
 * Initializes grid client from configPath.
 *
 * @param props Task properties.
 */
@Override
public void start(Map<String, String> props) {
    // Each task has the same parameters -- avoid setting more than once.
    if (cacheName != null)
        return;
    cacheName = props.get(IgniteSinkConstants.CACHE_NAME);
    igniteConfigFile = props.get(IgniteSinkConstants.CACHE_CFG_PATH);
    if (props.containsKey(IgniteSinkConstants.CACHE_ALLOW_OVERWRITE))
        StreamerContext.getStreamer().allowOverwrite(Boolean.parseBoolean(props.get(IgniteSinkConstants.CACHE_ALLOW_OVERWRITE)));
    if (props.containsKey(IgniteSinkConstants.CACHE_PER_NODE_DATA_SIZE))
        StreamerContext.getStreamer().perNodeBufferSize(Integer.parseInt(props.get(IgniteSinkConstants.CACHE_PER_NODE_DATA_SIZE)));
    if (props.containsKey(IgniteSinkConstants.CACHE_PER_NODE_PAR_OPS))
        StreamerContext.getStreamer().perNodeParallelOperations(Integer.parseInt(props.get(IgniteSinkConstants.CACHE_PER_NODE_PAR_OPS)));
    if (props.containsKey(IgniteSinkConstants.SINGLE_TUPLE_EXTRACTOR_CLASS)) {
        String transformerCls = props.get(IgniteSinkConstants.SINGLE_TUPLE_EXTRACTOR_CLASS);
        if (transformerCls != null && !transformerCls.isEmpty()) {
            try {
                Class<? extends StreamSingleTupleExtractor> clazz = (Class<? extends StreamSingleTupleExtractor<SinkRecord, Object, Object>>) Class.forName(transformerCls);
                extractor = clazz.newInstance();
            } catch (Exception e) {
                throw new ConnectException("Failed to instantiate the provided transformer!", e);
            }
        }
    }
    stopped = false;
}