/*

  * 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.giraph.block_app.framework.api.giraph;

 import java.io.IOException;

 import org.apache.giraph.block_app.framework.internal.BlockWorkerLogic;

 import org.apache.giraph.block_app.framework.internal.BlockWorkerPieces;

 import org.apache.giraph.graph.AbstractComputation;

 import org.apache.giraph.graph.Vertex;

 /**

  * Computation that executes receiver and sender blocks passed

  * into BlockWorkerPieces.

  */

 @SuppressWarnings({ "rawtypes", "unchecked" })

 public final class BlockComputation extends AbstractComputation {

   private BlockWorkerLogic workerLogic;

   @Override

   public void preSuperstep() {

     BlockWorkerPieces workerPieces =

         BlockWorkerPieces.getNextWorkerPieces(this);

     workerLogic = new BlockWorkerLogic(workerPieces);

     BlockWorkerApiWrapper workerApi = new BlockWorkerApiWrapper<>(this);

     workerLogic.preSuperstep(workerApi, workerApi);

   }

   @Override

   public void compute(Vertex vertex, Iterable messages) throws IOException {

     workerLogic.compute(vertex, messages);

   }

   @Override

   public void postSuperstep() {

     workerLogic.postSuperstep();

   }

 }