| /** |
| * 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.api.records.impl.pb; |
| |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.hadoop.classification.InterfaceAudience.Private; |
| import org.apache.hadoop.classification.InterfaceStability.Unstable; |
| import org.apache.hadoop.yarn.api.records.PreemptionContainer; |
| import org.apache.hadoop.yarn.api.records.StrictPreemptionContract; |
| import org.apache.hadoop.yarn.proto.YarnProtos.PreemptionContainerProto; |
| import org.apache.hadoop.yarn.proto.YarnProtos.StrictPreemptionContractProto; |
| import org.apache.hadoop.yarn.proto.YarnProtos.StrictPreemptionContractProtoOrBuilder; |
| |
| import com.google.protobuf.TextFormat; |
| |
| @Private |
| @Unstable |
| public class StrictPreemptionContractPBImpl extends StrictPreemptionContract { |
| |
| StrictPreemptionContractProto proto = |
| StrictPreemptionContractProto.getDefaultInstance(); |
| StrictPreemptionContractProto.Builder builder = null; |
| |
| boolean viaProto = false; |
| private Set<PreemptionContainer> containers; |
| |
| public StrictPreemptionContractPBImpl() { |
| builder = StrictPreemptionContractProto.newBuilder(); |
| } |
| |
| public StrictPreemptionContractPBImpl(StrictPreemptionContractProto proto) { |
| this.proto = proto; |
| viaProto = true; |
| } |
| |
| public synchronized StrictPreemptionContractProto getProto() { |
| mergeLocalToProto(); |
| proto = viaProto ? proto : builder.build(); |
| viaProto = true; |
| return proto; |
| } |
| |
| @Override |
| public int hashCode() { |
| return getProto().hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (other == null) |
| return false; |
| if (other.getClass().isAssignableFrom(this.getClass())) { |
| return this.getProto().equals(this.getClass().cast(other).getProto()); |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return TextFormat.shortDebugString(getProto()); |
| } |
| |
| private void mergeLocalToProto() { |
| if (viaProto) |
| maybeInitBuilder(); |
| mergeLocalToBuilder(); |
| proto = builder.build(); |
| viaProto = true; |
| } |
| |
| private void mergeLocalToBuilder() { |
| if (this.containers != null) { |
| addContainersToProto(); |
| } |
| } |
| |
| private void maybeInitBuilder() { |
| if (viaProto || builder == null) { |
| builder = StrictPreemptionContractProto.newBuilder(proto); |
| } |
| viaProto = false; |
| } |
| |
| @Override |
| public synchronized Set<PreemptionContainer> getContainers() { |
| initIds(); |
| return containers; |
| } |
| |
| @Override |
| public synchronized void setContainers( |
| final Set<PreemptionContainer> containers) { |
| if (null == containers) { |
| builder.clearContainer(); |
| } |
| this.containers = containers; |
| } |
| |
| private void initIds() { |
| if (containers != null) { |
| return; |
| } |
| StrictPreemptionContractProtoOrBuilder p = viaProto ? proto : builder; |
| List<PreemptionContainerProto> list = p.getContainerList(); |
| containers = new HashSet<PreemptionContainer>(); |
| |
| for (PreemptionContainerProto c : list) { |
| containers.add(convertFromProtoFormat(c)); |
| } |
| } |
| |
| private void addContainersToProto() { |
| maybeInitBuilder(); |
| builder.clearContainer(); |
| if (containers == null) { |
| return; |
| } |
| Iterable<PreemptionContainerProto> iterable = new Iterable<PreemptionContainerProto>() { |
| @Override |
| public Iterator<PreemptionContainerProto> iterator() { |
| return new Iterator<PreemptionContainerProto>() { |
| |
| Iterator<PreemptionContainer> iter = containers.iterator(); |
| |
| @Override |
| public boolean hasNext() { |
| return iter.hasNext(); |
| } |
| |
| @Override |
| public PreemptionContainerProto next() { |
| return convertToProtoFormat(iter.next()); |
| } |
| |
| @Override |
| public void remove() { |
| throw new UnsupportedOperationException(); |
| |
| } |
| }; |
| |
| } |
| }; |
| builder.addAllContainer(iterable); |
| } |
| |
| private PreemptionContainerPBImpl convertFromProtoFormat(PreemptionContainerProto p) { |
| return new PreemptionContainerPBImpl(p); |
| } |
| |
| private PreemptionContainerProto convertToProtoFormat(PreemptionContainer t) { |
| return ((PreemptionContainerPBImpl)t).getProto(); |
| } |
| |
| } |