| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| ReducerAndBroadcastWrapperHandle |
|
| 1.0;1 |
| 1 | /* | |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 3 | * or more contributor license agreements. See the NOTICE file | |
| 4 | * distributed with this work for additional information | |
| 5 | * regarding copyright ownership. The ASF licenses this file | |
| 6 | * to you under the Apache License, Version 2.0 (the | |
| 7 | * "License"); you may not use this file except in compliance | |
| 8 | * with the License. You may obtain a copy of the License at | |
| 9 | * | |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 11 | * | |
| 12 | * Unless required by applicable law or agreed to in writing, software | |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 15 | * See the License for the specific language governing permissions and | |
| 16 | * limitations under the License. | |
| 17 | */ | |
| 18 | package org.apache.giraph.block_app.framework.piece.global_comm; | |
| 19 | ||
| 20 | import org.apache.giraph.block_app.framework.api.BlockMasterApi; | |
| 21 | import org.apache.giraph.master.MasterGlobalCommUsage; | |
| 22 | import org.apache.giraph.worker.WorkerBroadcastUsage; | |
| 23 | ||
| 24 | /** | |
| 25 | * Handle that wraps both reducerHandle and broadcastHandle, so callers | |
| 26 | * don't need to have two fields. | |
| 27 | * | |
| 28 | * @param <S> Single value type | |
| 29 | * @param <R> Reduced value type | |
| 30 | */ | |
| 31 | 0 | public class ReducerAndBroadcastWrapperHandle<S, R> { |
| 32 | private ReducerHandle<S, R> reducerHandle; | |
| 33 | private BroadcastHandle<R> broadcastHandle; | |
| 34 | ||
| 35 | /** Set reducer handle to just registered handle */ | |
| 36 | public void registeredReducer(ReducerHandle<S, R> reducerHandle) { | |
| 37 | 0 | this.reducerHandle = reducerHandle; |
| 38 | 0 | } |
| 39 | ||
| 40 | /** Reduce single value */ | |
| 41 | public void reduce(S valueToReduce) { | |
| 42 | 0 | reducerHandle.reduce(valueToReduce); |
| 43 | 0 | } |
| 44 | ||
| 45 | /** Get reduced value */ | |
| 46 | public R getReducedValue(MasterGlobalCommUsage master) { | |
| 47 | 0 | return reducerHandle.getReducedValue(master); |
| 48 | } | |
| 49 | ||
| 50 | /** | |
| 51 | * Broadcast reduced value from master | |
| 52 | */ | |
| 53 | public void broadcastValue(BlockMasterApi master) { | |
| 54 | 0 | broadcastHandle = reducerHandle.broadcastValue(master); |
| 55 | 0 | } |
| 56 | ||
| 57 | /** Get broadcasted value */ | |
| 58 | public R getBroadcast(WorkerBroadcastUsage worker) { | |
| 59 | 0 | return broadcastHandle.getBroadcast(worker); |
| 60 | } | |
| 61 | } |