| /* |
| * Copyright 2009-2013 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.pregelix.runtime.touchpoint; |
| |
| import org.apache.hadoop.conf.Configuration; |
| |
| import edu.uci.ics.hyracks.api.context.IHyracksTaskContext; |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| import edu.uci.ics.pregelix.dataflow.base.IConfigurationFactory; |
| import edu.uci.ics.pregelix.dataflow.std.base.IRuntimeHook; |
| import edu.uci.ics.pregelix.dataflow.std.base.IRuntimeHookFactory; |
| import edu.uci.ics.pregelix.dataflow.util.IterationUtils; |
| |
| /** |
| * Recover the pregelix job state in a NC |
| * |
| * @author yingyib |
| */ |
| public class RecoveryRuntimeHookFactory implements IRuntimeHookFactory { |
| private static final long serialVersionUID = 1L; |
| private final long currentSuperStep; |
| private String jobId; |
| private IConfigurationFactory confFactory; |
| |
| public RecoveryRuntimeHookFactory(String jobId, long currentSuperStep, IConfigurationFactory confFactory) { |
| this.currentSuperStep = currentSuperStep; |
| this.jobId = jobId; |
| this.confFactory = confFactory; |
| } |
| |
| @Override |
| public IRuntimeHook createRuntimeHook() { |
| return new IRuntimeHook() { |
| |
| @Override |
| public void configure(IHyracksTaskContext ctx) throws HyracksDataException { |
| IterationUtils.endSuperStep(jobId, ctx); |
| Configuration conf = confFactory.createConfiguration(ctx); |
| IterationUtils.recoverProperties(jobId, ctx, conf, currentSuperStep); |
| } |
| |
| }; |
| } |
| |
| } |