| /** |
| * 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.hadoop.yarn.server.api.protocolrecords.impl.pb; |
| |
| import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse; |
| |
| import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.AllocateResponsePBImpl; |
| import org.apache.hadoop.yarn.proto.YarnServerCommonServiceProtos; |
| import org.apache.hadoop.yarn.proto.YarnServerCommonServiceProtos.RemoteNodeProto; |
| import org.apache.hadoop.yarn.server.api.protocolrecords.DistributedSchedulingAllocateResponse; |
| |
| |
| import org.apache.hadoop.yarn.server.api.protocolrecords.RemoteNode; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| /** |
| * Implementation of {@link DistributedSchedulingAllocateResponse}. |
| */ |
| public class DistributedSchedulingAllocateResponsePBImpl extends |
| DistributedSchedulingAllocateResponse { |
| |
| YarnServerCommonServiceProtos.DistributedSchedulingAllocateResponseProto |
| proto = YarnServerCommonServiceProtos. |
| DistributedSchedulingAllocateResponseProto.getDefaultInstance(); |
| YarnServerCommonServiceProtos.DistributedSchedulingAllocateResponseProto. |
| Builder builder = null; |
| boolean viaProto = false; |
| |
| private AllocateResponse allocateResponse; |
| private List<RemoteNode> nodesForScheduling; |
| |
| public DistributedSchedulingAllocateResponsePBImpl() { |
| builder = YarnServerCommonServiceProtos. |
| DistributedSchedulingAllocateResponseProto.newBuilder(); |
| } |
| |
| public DistributedSchedulingAllocateResponsePBImpl( |
| YarnServerCommonServiceProtos. |
| DistributedSchedulingAllocateResponseProto proto) { |
| this.proto = proto; |
| viaProto = true; |
| } |
| |
| public YarnServerCommonServiceProtos. |
| DistributedSchedulingAllocateResponseProto getProto() { |
| mergeLocalToProto(); |
| proto = viaProto ? proto : builder.build(); |
| viaProto = true; |
| return proto; |
| } |
| |
| private void maybeInitBuilder() { |
| if (viaProto || builder == null) { |
| builder = YarnServerCommonServiceProtos. |
| DistributedSchedulingAllocateResponseProto.newBuilder(proto); |
| } |
| viaProto = false; |
| } |
| |
| private synchronized void mergeLocalToProto() { |
| if (viaProto) |
| maybeInitBuilder(); |
| mergeLocalToBuilder(); |
| proto = builder.build(); |
| viaProto = true; |
| } |
| |
| private synchronized void mergeLocalToBuilder() { |
| if (this.nodesForScheduling != null) { |
| builder.clearNodesForScheduling(); |
| Iterable<YarnServerCommonServiceProtos.RemoteNodeProto> iterable = |
| getNodeIdProtoIterable(this.nodesForScheduling); |
| builder.addAllNodesForScheduling(iterable); |
| } |
| if (this.allocateResponse != null) { |
| builder.setAllocateResponse( |
| ((AllocateResponsePBImpl) this.allocateResponse).getProto()); |
| } |
| } |
| |
| @Override |
| public void setAllocateResponse(AllocateResponse response) { |
| maybeInitBuilder(); |
| if (allocateResponse == null) { |
| builder.clearAllocateResponse(); |
| } |
| this.allocateResponse = response; |
| } |
| |
| @Override |
| public AllocateResponse getAllocateResponse() { |
| if (this.allocateResponse != null) { |
| return this.allocateResponse; |
| } |
| |
| YarnServerCommonServiceProtos. |
| DistributedSchedulingAllocateResponseProtoOrBuilder p = |
| viaProto ? proto : builder; |
| if (!p.hasAllocateResponse()) { |
| return null; |
| } |
| |
| this.allocateResponse = new AllocateResponsePBImpl(p.getAllocateResponse()); |
| return this.allocateResponse; |
| } |
| |
| @Override |
| public void setNodesForScheduling(List<RemoteNode> nodesForScheduling) { |
| maybeInitBuilder(); |
| if (nodesForScheduling == null || nodesForScheduling.isEmpty()) { |
| if (this.nodesForScheduling != null) { |
| this.nodesForScheduling.clear(); |
| } |
| builder.clearNodesForScheduling(); |
| return; |
| } |
| this.nodesForScheduling = new ArrayList<>(); |
| this.nodesForScheduling.addAll(nodesForScheduling); |
| } |
| |
| @Override |
| public List<RemoteNode> getNodesForScheduling() { |
| if (nodesForScheduling != null) { |
| return nodesForScheduling; |
| } |
| initLocalNodesForSchedulingList(); |
| return nodesForScheduling; |
| } |
| |
| private synchronized void initLocalNodesForSchedulingList() { |
| YarnServerCommonServiceProtos. |
| DistributedSchedulingAllocateResponseProtoOrBuilder p = |
| viaProto ? proto : builder; |
| List<YarnServerCommonServiceProtos.RemoteNodeProto> list = |
| p.getNodesForSchedulingList(); |
| nodesForScheduling = new ArrayList<>(); |
| if (list != null) { |
| for (YarnServerCommonServiceProtos.RemoteNodeProto t : list) { |
| nodesForScheduling.add(new RemoteNodePBImpl(t)); |
| } |
| } |
| } |
| |
| private synchronized Iterable<RemoteNodeProto> getNodeIdProtoIterable( |
| final List<RemoteNode> nodeList) { |
| maybeInitBuilder(); |
| return new Iterable<RemoteNodeProto>() { |
| @Override |
| public synchronized Iterator<RemoteNodeProto> iterator() { |
| return new Iterator<RemoteNodeProto>() { |
| |
| Iterator<RemoteNode> iter = nodeList.iterator(); |
| |
| @Override |
| public boolean hasNext() { |
| return iter.hasNext(); |
| } |
| |
| @Override |
| public RemoteNodeProto next() { |
| return ((RemoteNodePBImpl)iter.next()).getProto(); |
| } |
| |
| @Override |
| public void remove() { |
| throw new UnsupportedOperationException(); |
| } |
| }; |
| } |
| }; |
| } |
| } |