Examples with AbstractUnaryOutputSourceOperatorNodePushable org.apache.hyracks.dataflow.std.base.AbstractUnaryOutputSourceOperatorNodePushable used on opensource projects

Example 6 with AbstractUnaryOutputSourceOperatorNodePushable

use of org.apache.hyracks.dataflow.std.base.AbstractUnaryOutputSourceOperatorNodePushable in project asterixdb by apache.

the class ExternalScanOperatorDescriptor method createPushRuntime.

@Override
public IOperatorNodePushable createPushRuntime(final IHyracksTaskContext ctx, IRecordDescriptorProvider recordDescProvider, final int partition, final int nPartitions) throws HyracksDataException {
    return new AbstractUnaryOutputSourceOperatorNodePushable() {

        @Override
        public void initialize() throws HyracksDataException {
            IDataSourceAdapter adapter = null;
            try {
                writer.open();
                adapter = adapterFactory.createAdapter(ctx, partition);
                adapter.start(partition, writer);
            } catch (Exception e) {
                writer.fail();
                throw new HyracksDataException(e);
            } finally {
                writer.close();
            }
        }
    };
}

Example 7 with AbstractUnaryOutputSourceOperatorNodePushable

use of org.apache.hyracks.dataflow.std.base.AbstractUnaryOutputSourceOperatorNodePushable in project asterixdb by apache.

the class AlgebricksMetaOperatorDescriptor method createSourceInputPushRuntime.

private IOperatorNodePushable createSourceInputPushRuntime(final IHyracksTaskContext ctx) {
    return new AbstractUnaryOutputSourceOperatorNodePushable() {

        @Override
        public void initialize() throws HyracksDataException {
            IFrameWriter startOfPipeline;
            RecordDescriptor pipelineOutputRecordDescriptor = outputArity > 0 ? AlgebricksMetaOperatorDescriptor.this.outRecDescs[0] : null;
            PipelineAssembler pa = new PipelineAssembler(pipeline, inputArity, outputArity, null, pipelineOutputRecordDescriptor);
            startOfPipeline = pa.assemblePipeline(writer, ctx);
            try {
                startOfPipeline.open();
            } catch (Exception e) {
                startOfPipeline.fail();
                throw e;
            } finally {
                startOfPipeline.close();
            }
        }
    };
}