/*******************************************************************************
* Copyright 2017 Capital One Services, LLC and Bitwise, Inc.
* 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 at
* 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 hydrograph.engine.cascading.utilities;
import cascading.tuple.Fields;
import cascading.tuple.Tuple;
import cascading.tuple.TupleEntry;
public class TupleHelper {
public static Tuple setTuplePart(int[] fieldsPosition, Tuple source,
Tuple target) {
int i = 0;
for (int position : fieldsPosition) {
target.set(i, source.getObject(position));
i++;
}
return target;
}
public static TupleEntry initializeTupleEntry(Fields fields) {
Tuple t = new Tuple(new Object[fields.size()]);
return new TupleEntry(fields, t);
}
public static Tuple setTupleOnPositions(int[] sourcePositions,
Tuple source, int[] targetPositions, Tuple target) {
int i = -1;
for (int sourcePosition : sourcePositions) {
i = i + 1;
target.set(targetPositions[i], source.getObject(sourcePosition));
}
return target;
}
}