| /* |
| * 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.hivesterix.runtime.jobgen; |
| |
| import edu.uci.ics.hyracks.api.dataflow.IConnectorDescriptor; |
| import edu.uci.ics.hyracks.api.dataflow.connectors.IConnectorPolicy; |
| import edu.uci.ics.hyracks.api.dataflow.connectors.IConnectorPolicyAssignmentPolicy; |
| import edu.uci.ics.hyracks.api.dataflow.connectors.PipeliningConnectorPolicy; |
| import edu.uci.ics.hyracks.api.dataflow.connectors.SendSideMaterializedBlockingConnectorPolicy; |
| import edu.uci.ics.hyracks.api.dataflow.connectors.SendSideMaterializedPipeliningConnectorPolicy; |
| import edu.uci.ics.hyracks.api.dataflow.connectors.SendSideMaterializedReceiveSideMaterializedBlockingConnectorPolicy; |
| import edu.uci.ics.hyracks.dataflow.std.connectors.MToNPartitioningConnectorDescriptor; |
| import edu.uci.ics.hyracks.dataflow.std.connectors.MToNPartitioningMergingConnectorDescriptor; |
| |
| public class HiveConnectorPolicyAssignmentPolicy implements IConnectorPolicyAssignmentPolicy { |
| public enum Policy { |
| PIPELINING, |
| SEND_SIDE_MAT_PIPELINING, |
| SEND_SIDE_MAT_BLOCKING, |
| SEND_SIDE_MAT_RECEIVE_SIDE_MAT_BLOCKING; |
| }; |
| |
| private static final long serialVersionUID = 1L; |
| |
| private final IConnectorPolicy pipeliningPolicy = new PipeliningConnectorPolicy(); |
| private final IConnectorPolicy sendSideMatPipeliningPolicy = new SendSideMaterializedPipeliningConnectorPolicy(); |
| private final IConnectorPolicy sendSideMatBlockingPolicy = new SendSideMaterializedBlockingConnectorPolicy(); |
| private final IConnectorPolicy sendSideMatReceiveSideMatBlockingPolicy = new SendSideMaterializedReceiveSideMaterializedBlockingConnectorPolicy(); |
| private final Policy policy; |
| |
| public HiveConnectorPolicyAssignmentPolicy(Policy policy) { |
| this.policy = policy; |
| } |
| |
| @Override |
| public IConnectorPolicy getConnectorPolicyAssignment(IConnectorDescriptor c, int nProducers, int nConsumers, |
| int[] fanouts) { |
| if (c instanceof MToNPartitioningMergingConnectorDescriptor) { |
| // avoid deadlocks |
| switch (policy) { |
| case PIPELINING: |
| case SEND_SIDE_MAT_PIPELINING: |
| return sendSideMatPipeliningPolicy; |
| case SEND_SIDE_MAT_BLOCKING: |
| return sendSideMatBlockingPolicy; |
| case SEND_SIDE_MAT_RECEIVE_SIDE_MAT_BLOCKING: |
| return sendSideMatReceiveSideMatBlockingPolicy; |
| default: |
| return sendSideMatPipeliningPolicy; |
| } |
| } else if (c instanceof MToNPartitioningConnectorDescriptor) { |
| // support different repartitioning policies |
| switch (policy) { |
| case PIPELINING: |
| return pipeliningPolicy; |
| case SEND_SIDE_MAT_PIPELINING: |
| return sendSideMatPipeliningPolicy; |
| case SEND_SIDE_MAT_BLOCKING: |
| return sendSideMatBlockingPolicy; |
| case SEND_SIDE_MAT_RECEIVE_SIDE_MAT_BLOCKING: |
| return sendSideMatReceiveSideMatBlockingPolicy; |
| default: |
| return pipeliningPolicy; |
| } |
| } else { |
| // pipelining for other connectors |
| return pipeliningPolicy; |
| } |
| } |
| } |