| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.sysds.runtime.instructions.spark.functions; |
| |
| import org.apache.spark.api.java.function.Function; |
| import org.apache.sysds.runtime.matrix.data.MatrixBlock; |
| |
| /** |
| * General purpose copy function for binary block rdds. This function can be used in |
| * mapValues (copy matrix blocks). It supports both deep and shallow copies of values. |
| * |
| */ |
| public class CopyMatrixBlockFunction implements Function<MatrixBlock,MatrixBlock> |
| { |
| private static final long serialVersionUID = 966409324406154236L; |
| |
| private boolean _deepCopy = true; |
| |
| public CopyMatrixBlockFunction() { |
| this(true); |
| } |
| |
| public CopyMatrixBlockFunction(boolean deepCopy) { |
| _deepCopy = deepCopy; |
| } |
| |
| @Override |
| public MatrixBlock call(MatrixBlock arg0) |
| throws Exception |
| { |
| if( _deepCopy ) |
| return new MatrixBlock(arg0); |
| else |
| return arg0; |
| } |
| } |