| /** |
| * 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 java.util.ArrayList; |
| |
| import org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest; |
| import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.AllocateRequestPBImpl; |
| import org.apache.hadoop.yarn.api.records.Container; |
| import org.apache.hadoop.yarn.api.records.impl.pb.ContainerPBImpl; |
| import org.apache.hadoop.yarn.api.records.impl.pb.ProtoUtils; |
| import org.apache.hadoop.yarn.proto.YarnProtos.ContainerProto; |
| import org.apache.hadoop.yarn.proto.YarnServerCommonServiceProtos.DistributedSchedulingAllocateRequestProto; |
| import org.apache.hadoop.yarn.proto.YarnServerCommonServiceProtos.DistributedSchedulingAllocateRequestProtoOrBuilder; |
| import org.apache.hadoop.yarn.proto.YarnServiceProtos.AllocateRequestProto; |
| import org.apache.hadoop.yarn.server.api.protocolrecords.DistributedSchedulingAllocateRequest; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| /** |
| * Implementation of {@link DistributedSchedulingAllocateRequest}. |
| */ |
| public class DistributedSchedulingAllocateRequestPBImpl |
| extends DistributedSchedulingAllocateRequest { |
| private DistributedSchedulingAllocateRequestProto.Builder builder = null; |
| private boolean viaProto = false; |
| |
| private DistributedSchedulingAllocateRequestProto proto; |
| private AllocateRequest allocateRequest; |
| private List<Container> containers; |
| |
| public DistributedSchedulingAllocateRequestPBImpl() { |
| builder = DistributedSchedulingAllocateRequestProto.newBuilder(); |
| } |
| |
| public DistributedSchedulingAllocateRequestPBImpl( |
| DistributedSchedulingAllocateRequestProto proto) { |
| this.proto = proto; |
| this.viaProto = true; |
| } |
| |
| @Override |
| public AllocateRequest getAllocateRequest() { |
| DistributedSchedulingAllocateRequestProtoOrBuilder p = |
| viaProto ? proto : builder; |
| if (this.allocateRequest != null) { |
| return this.allocateRequest; |
| } |
| if (!p.hasAllocateRequest()) { |
| return null; |
| } |
| this.allocateRequest = convertFromProtoFormat(p.getAllocateRequest()); |
| return this.allocateRequest; |
| } |
| |
| @Override |
| public void setAllocateRequest(AllocateRequest pAllocateRequest) { |
| maybeInitBuilder(); |
| if (allocateRequest == null) { |
| builder.clearAllocateRequest(); |
| } |
| this.allocateRequest = pAllocateRequest; |
| } |
| |
| @Override |
| public List<Container> getAllocatedContainers() { |
| if (this.containers != null) { |
| return this.containers; |
| } |
| initAllocatedContainers(); |
| return containers; |
| } |
| |
| private void initAllocatedContainers() { |
| DistributedSchedulingAllocateRequestProtoOrBuilder p = |
| viaProto ? proto : builder; |
| List<ContainerProto> list = p.getAllocatedContainersList(); |
| this.containers = new ArrayList<Container>(); |
| for (ContainerProto c : list) { |
| this.containers.add(convertFromProtoFormat(c)); |
| } |
| } |
| |
| @Override |
| public void setAllocatedContainers(List<Container> pContainers) { |
| maybeInitBuilder(); |
| if (pContainers == null || pContainers.isEmpty()) { |
| if (this.containers != null) { |
| this.containers.clear(); |
| } |
| builder.clearAllocatedContainers(); |
| return; |
| } |
| this.containers = new ArrayList<>(); |
| this.containers.addAll(pContainers); |
| } |
| |
| public DistributedSchedulingAllocateRequestProto getProto() { |
| mergeLocalToProto(); |
| proto = viaProto ? proto : builder.build(); |
| viaProto = true; |
| return proto; |
| } |
| |
| private void maybeInitBuilder() { |
| if (viaProto || builder == null) { |
| builder = DistributedSchedulingAllocateRequestProto.newBuilder(proto); |
| } |
| viaProto = false; |
| } |
| |
| private void mergeLocalToProto() { |
| if (viaProto) { |
| maybeInitBuilder(); |
| } |
| mergeLocalToBuilder(); |
| proto = builder.build(); |
| viaProto = true; |
| } |
| |
| private void mergeLocalToBuilder() { |
| if (this.containers != null) { |
| builder.clearAllocatedContainers(); |
| Iterable<ContainerProto> iterable = |
| getContainerProtoIterable(this.containers); |
| builder.addAllAllocatedContainers(iterable); |
| } |
| if (this.allocateRequest != null) { |
| builder.setAllocateRequest( |
| ((AllocateRequestPBImpl)this.allocateRequest).getProto()); |
| } |
| } |
| |
| private Iterable<ContainerProto> getContainerProtoIterable( |
| final List<Container> newContainersList) { |
| maybeInitBuilder(); |
| return new Iterable<ContainerProto>() { |
| @Override |
| public synchronized Iterator<ContainerProto> iterator() { |
| return new Iterator<ContainerProto>() { |
| Iterator<Container> iter = newContainersList.iterator(); |
| |
| @Override |
| public synchronized boolean hasNext() { |
| return iter.hasNext(); |
| } |
| |
| @Override |
| public synchronized ContainerProto next() { |
| return ProtoUtils.convertToProtoFormat(iter.next()); |
| } |
| |
| @Override |
| public synchronized void remove() { |
| throw new UnsupportedOperationException(); |
| |
| } |
| }; |
| } |
| }; |
| } |
| |
| private ContainerPBImpl convertFromProtoFormat(ContainerProto p) { |
| return new ContainerPBImpl(p); |
| } |
| |
| private AllocateRequestPBImpl convertFromProtoFormat(AllocateRequestProto p) { |
| return new AllocateRequestPBImpl(p); |
| } |
| } |