| /** |
| * 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.yarn.api.protocolrecords.GetClusterNodesResponse; |
| import org.apache.hadoop.yarn.api.records.NodeReport; |
| import org.apache.hadoop.yarn.api.records.ProtoBase; |
| import org.apache.hadoop.yarn.api.records.impl.pb.NodeReportPBImpl; |
| import org.apache.hadoop.yarn.proto.YarnProtos.NodeReportProto; |
| import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetClusterNodesResponseProto; |
| import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetClusterNodesResponseProtoOrBuilder; |
| |
| public class GetClusterNodesResponsePBImpl extends |
| ProtoBase<GetClusterNodesResponseProto> implements GetClusterNodesResponse { |
| |
| GetClusterNodesResponseProto proto = |
| GetClusterNodesResponseProto.getDefaultInstance(); |
| GetClusterNodesResponseProto.Builder builder = null; |
| boolean viaProto = false; |
| |
| List<NodeReport> nodeManagerInfoList; |
| |
| public GetClusterNodesResponsePBImpl() { |
| builder = GetClusterNodesResponseProto.newBuilder(); |
| } |
| |
| public GetClusterNodesResponsePBImpl(GetClusterNodesResponseProto proto) { |
| this.proto = proto; |
| viaProto = true; |
| } |
| |
| @Override |
| public List<NodeReport> getNodeReports() { |
| initLocalNodeManagerInfosList(); |
| return this.nodeManagerInfoList; |
| } |
| |
| @Override |
| public void setNodeReports(List<NodeReport> nodeManagers) { |
| if (nodeManagers == null) { |
| builder.clearNodeReports(); |
| } |
| this.nodeManagerInfoList = nodeManagers; |
| } |
| |
| @Override |
| public GetClusterNodesResponseProto getProto() { |
| mergeLocalToProto(); |
| proto = viaProto ? proto : builder.build(); |
| viaProto = true; |
| return proto; |
| } |
| |
| private void mergeLocalToBuilder() { |
| if (this.nodeManagerInfoList != null) { |
| addLocalNodeManagerInfosToProto(); |
| } |
| } |
| |
| private void mergeLocalToProto() { |
| if (viaProto) |
| maybeInitBuilder(); |
| mergeLocalToBuilder(); |
| proto = builder.build(); |
| viaProto = true; |
| } |
| |
| private void maybeInitBuilder() { |
| if (viaProto || builder == null) { |
| builder = GetClusterNodesResponseProto.newBuilder(proto); |
| } |
| viaProto = false; |
| } |
| |
| //Once this is called. containerList will never be null - untill a getProto is called. |
| private void initLocalNodeManagerInfosList() { |
| if (this.nodeManagerInfoList != null) { |
| return; |
| } |
| GetClusterNodesResponseProtoOrBuilder p = viaProto ? proto : builder; |
| List<NodeReportProto> list = p.getNodeReportsList(); |
| nodeManagerInfoList = new ArrayList<NodeReport>(); |
| |
| for (NodeReportProto a : list) { |
| nodeManagerInfoList.add(convertFromProtoFormat(a)); |
| } |
| } |
| |
| private void addLocalNodeManagerInfosToProto() { |
| maybeInitBuilder(); |
| builder.clearNodeReports(); |
| if (nodeManagerInfoList == null) |
| return; |
| Iterable<NodeReportProto> iterable = new Iterable<NodeReportProto>() { |
| @Override |
| public Iterator<NodeReportProto> iterator() { |
| return new Iterator<NodeReportProto>() { |
| |
| Iterator<NodeReport> iter = nodeManagerInfoList.iterator(); |
| |
| @Override |
| public boolean hasNext() { |
| return iter.hasNext(); |
| } |
| |
| @Override |
| public NodeReportProto next() { |
| return convertToProtoFormat(iter.next()); |
| } |
| |
| @Override |
| public void remove() { |
| throw new UnsupportedOperationException(); |
| |
| } |
| }; |
| |
| } |
| }; |
| builder.addAllNodeReports(iterable); |
| } |
| |
| private NodeReportPBImpl convertFromProtoFormat(NodeReportProto p) { |
| return new NodeReportPBImpl(p); |
| } |
| |
| private NodeReportProto convertToProtoFormat(NodeReport t) { |
| return ((NodeReportPBImpl)t).getProto(); |
| } |
| |
| } |