| /** |
| * 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.GetAllApplicationsResponse; |
| import org.apache.hadoop.yarn.api.records.ApplicationReport; |
| import org.apache.hadoop.yarn.api.records.ProtoBase; |
| import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationReportPBImpl; |
| import org.apache.hadoop.yarn.proto.YarnProtos.ApplicationReportProto; |
| import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetAllApplicationsResponseProto; |
| import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetAllApplicationsResponseProtoOrBuilder; |
| |
| public class GetAllApplicationsResponsePBImpl |
| extends ProtoBase<GetAllApplicationsResponseProto> implements |
| GetAllApplicationsResponse { |
| |
| GetAllApplicationsResponseProto proto = |
| GetAllApplicationsResponseProto.getDefaultInstance(); |
| GetAllApplicationsResponseProto.Builder builder = null; |
| boolean viaProto = false; |
| |
| List<ApplicationReport> applicationList; |
| |
| public GetAllApplicationsResponsePBImpl() { |
| builder = GetAllApplicationsResponseProto.newBuilder(); |
| } |
| |
| public GetAllApplicationsResponsePBImpl(GetAllApplicationsResponseProto proto) { |
| this.proto = proto; |
| viaProto = true; |
| } |
| |
| @Override |
| public List<ApplicationReport> getApplicationList() { |
| initLocalApplicationsList(); |
| return this.applicationList; |
| } |
| |
| @Override |
| public void setApplicationList(List<ApplicationReport> applications) { |
| maybeInitBuilder(); |
| if (applications == null) |
| builder.clearApplications(); |
| this.applicationList = applications; |
| } |
| |
| @Override |
| public GetAllApplicationsResponseProto getProto() { |
| mergeLocalToProto(); |
| proto = viaProto ? proto : builder.build(); |
| viaProto = true; |
| return proto; |
| } |
| |
| private void mergeLocalToBuilder() { |
| if (this.applicationList != null) { |
| addLocalApplicationsToProto(); |
| } |
| } |
| |
| private void mergeLocalToProto() { |
| if (viaProto) |
| maybeInitBuilder(); |
| mergeLocalToBuilder(); |
| proto = builder.build(); |
| viaProto = true; |
| } |
| |
| private void maybeInitBuilder() { |
| if (viaProto || builder == null) { |
| builder = GetAllApplicationsResponseProto.newBuilder(proto); |
| } |
| viaProto = false; |
| } |
| |
| //Once this is called. containerList will never be null - untill a getProto is called. |
| private void initLocalApplicationsList() { |
| if (this.applicationList != null) { |
| return; |
| } |
| GetAllApplicationsResponseProtoOrBuilder p = viaProto ? proto : builder; |
| List<ApplicationReportProto> list = p.getApplicationsList(); |
| applicationList = new ArrayList<ApplicationReport>(); |
| |
| for (ApplicationReportProto a : list) { |
| applicationList.add(convertFromProtoFormat(a)); |
| } |
| } |
| |
| private void addLocalApplicationsToProto() { |
| maybeInitBuilder(); |
| builder.clearApplications(); |
| if (applicationList == null) |
| return; |
| Iterable<ApplicationReportProto> iterable = new Iterable<ApplicationReportProto>() { |
| @Override |
| public Iterator<ApplicationReportProto> iterator() { |
| return new Iterator<ApplicationReportProto>() { |
| |
| Iterator<ApplicationReport> iter = applicationList.iterator(); |
| |
| @Override |
| public boolean hasNext() { |
| return iter.hasNext(); |
| } |
| |
| @Override |
| public ApplicationReportProto next() { |
| return convertToProtoFormat(iter.next()); |
| } |
| |
| @Override |
| public void remove() { |
| throw new UnsupportedOperationException(); |
| |
| } |
| }; |
| |
| } |
| }; |
| builder.addAllApplications(iterable); |
| } |
| |
| private ApplicationReportPBImpl convertFromProtoFormat(ApplicationReportProto p) { |
| return new ApplicationReportPBImpl(p); |
| } |
| |
| private ApplicationReportProto convertToProtoFormat(ApplicationReport t) { |
| return ((ApplicationReportPBImpl)t).getProto(); |
| } |
| |
| } |