| /** |
| * 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.protocolrecords.impl.pb; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.apache.hadoop.classification.InterfaceAudience.Private; |
| import org.apache.hadoop.classification.InterfaceStability.Unstable; |
| import org.apache.hadoop.yarn.api.protocolrecords.GetContainersResponse; |
| import org.apache.hadoop.yarn.api.records.ContainerReport; |
| import org.apache.hadoop.yarn.api.records.impl.pb.ContainerReportPBImpl; |
| import org.apache.hadoop.yarn.proto.YarnProtos.ContainerReportProto; |
| import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetContainersResponseProto; |
| import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetContainersResponseProtoOrBuilder; |
| |
| import com.google.protobuf.TextFormat; |
| |
| @Private |
| @Unstable |
| public class GetContainersResponsePBImpl extends GetContainersResponse { |
| |
| GetContainersResponseProto proto = GetContainersResponseProto |
| .getDefaultInstance(); |
| GetContainersResponseProto.Builder builder = null; |
| boolean viaProto = false; |
| |
| List<ContainerReport> containerList; |
| |
| public GetContainersResponsePBImpl() { |
| builder = GetContainersResponseProto.newBuilder(); |
| } |
| |
| public GetContainersResponsePBImpl(GetContainersResponseProto proto) { |
| this.proto = proto; |
| viaProto = true; |
| } |
| |
| @Override |
| public List<ContainerReport> getContainerList() { |
| initLocalContainerList(); |
| return this.containerList; |
| } |
| |
| @Override |
| public void setContainerList(List<ContainerReport> containers) { |
| maybeInitBuilder(); |
| if (containers == null) { |
| builder.clearContainers(); |
| } |
| this.containerList = containers; |
| } |
| |
| public GetContainersResponseProto 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 mergeLocalToBuilder() { |
| if (this.containerList != null) { |
| addLocalContainersToProto(); |
| } |
| } |
| |
| private void mergeLocalToProto() { |
| if (viaProto) { |
| maybeInitBuilder(); |
| } |
| mergeLocalToBuilder(); |
| proto = builder.build(); |
| viaProto = true; |
| } |
| |
| private void maybeInitBuilder() { |
| if (viaProto || builder == null) { |
| builder = GetContainersResponseProto.newBuilder(proto); |
| } |
| viaProto = false; |
| } |
| |
| // Once this is called. containerList will never be null - until a getProto |
| // is called. |
| private void initLocalContainerList() { |
| if (this.containerList != null) { |
| return; |
| } |
| GetContainersResponseProtoOrBuilder p = viaProto ? proto : builder; |
| List<ContainerReportProto> list = p.getContainersList(); |
| containerList = new ArrayList<ContainerReport>(); |
| |
| for (ContainerReportProto c : list) { |
| containerList.add(convertFromProtoFormat(c)); |
| } |
| } |
| |
| private void addLocalContainersToProto() { |
| maybeInitBuilder(); |
| builder.clearContainers(); |
| if (containerList == null) { |
| return; |
| } |
| Iterable<ContainerReportProto> iterable = |
| new Iterable<ContainerReportProto>() { |
| @Override |
| public Iterator<ContainerReportProto> iterator() { |
| return new Iterator<ContainerReportProto>() { |
| |
| Iterator<ContainerReport> iter = containerList.iterator(); |
| |
| @Override |
| public boolean hasNext() { |
| return iter.hasNext(); |
| } |
| |
| @Override |
| public ContainerReportProto next() { |
| return convertToProtoFormat(iter.next()); |
| } |
| |
| @Override |
| public void remove() { |
| throw new UnsupportedOperationException(); |
| |
| } |
| }; |
| |
| } |
| }; |
| builder.addAllContainers(iterable); |
| } |
| |
| private ContainerReportPBImpl convertFromProtoFormat(ContainerReportProto p) { |
| return new ContainerReportPBImpl(p); |
| } |
| |
| private ContainerReportProto convertToProtoFormat(ContainerReport t) { |
| return ((ContainerReportPBImpl) t).getProto(); |
| } |
| |
| } |