| /* |
| * Copyright 2009-2010 by The Regents of the University of California |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * you may obtain a copy of the License from |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package edu.uci.ics.hyracks.dataflow.std.misc; |
| |
| import edu.uci.ics.hyracks.api.context.IHyracksStageletContext; |
| import edu.uci.ics.hyracks.api.dataflow.IOpenableDataWriter; |
| import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable; |
| import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider; |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| import edu.uci.ics.hyracks.api.job.IOperatorEnvironment; |
| import edu.uci.ics.hyracks.api.job.JobSpecification; |
| import edu.uci.ics.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor; |
| import edu.uci.ics.hyracks.dataflow.std.base.IOpenableDataWriterOperator; |
| import edu.uci.ics.hyracks.dataflow.std.util.DeserializedOperatorNodePushable; |
| |
| public class PrinterOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor { |
| private static final long serialVersionUID = 1L; |
| |
| public PrinterOperatorDescriptor(JobSpecification spec) { |
| super(spec, 1, 0); |
| } |
| |
| private class PrinterOperator implements IOpenableDataWriterOperator { |
| @Override |
| public void open() throws HyracksDataException { |
| } |
| |
| @Override |
| public void close() throws HyracksDataException { |
| } |
| |
| @Override |
| public void writeData(Object[] data) throws HyracksDataException { |
| for (int i = 0; i < data.length; ++i) { |
| System.err.print(String.valueOf(data[i])); |
| System.err.print(", "); |
| } |
| System.err.println(); |
| } |
| |
| @Override |
| public void setDataWriter(int index, IOpenableDataWriter<Object[]> writer) { |
| throw new IllegalArgumentException(); |
| } |
| } |
| |
| @Override |
| public IOperatorNodePushable createPushRuntime(IHyracksStageletContext ctx, IOperatorEnvironment env, |
| IRecordDescriptorProvider recordDescProvider, int partition, int nPartitions) { |
| return new DeserializedOperatorNodePushable(ctx, new PrinterOperator(), |
| recordDescProvider.getInputRecordDescriptor(getOperatorId(), 0)); |
| } |
| } |