| /* |
| * |
| * 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.resourceestimator.common.serialization; |
| |
| import java.lang.reflect.Type; |
| import java.util.NavigableMap; |
| |
| import org.apache.hadoop.yarn.api.records.Resource; |
| import org.apache.hadoop.yarn.server.resourcemanager.reservation.RLESparseResourceAllocation; |
| import org.apache.hadoop.yarn.util.resource.DefaultResourceCalculator; |
| import org.apache.hadoop.yarn.util.resource.ResourceCalculator; |
| |
| import com.google.gson.Gson; |
| import com.google.gson.GsonBuilder; |
| import com.google.gson.JsonDeserializationContext; |
| import com.google.gson.JsonDeserializer; |
| import com.google.gson.JsonElement; |
| import com.google.gson.JsonObject; |
| import com.google.gson.JsonParseException; |
| import com.google.gson.JsonSerializationContext; |
| import com.google.gson.JsonSerializer; |
| import com.google.gson.reflect.TypeToken; |
| |
| /** |
| * Serialize/deserialize RLESparseResourceAllocation object to/from JSON. |
| */ |
| public class RLESparseResourceAllocationSerDe |
| implements JsonSerializer<RLESparseResourceAllocation>, |
| JsonDeserializer<RLESparseResourceAllocation> { |
| private static final String KEY = "resourceAllocation"; |
| private final Gson gson = |
| new GsonBuilder().registerTypeAdapter(Resource.class, new ResourceSerDe()) |
| .create(); |
| private final Type type = new TypeToken<NavigableMap<Long, Resource>>() { |
| }.getType(); |
| private final ResourceCalculator resourceCalculator = |
| new DefaultResourceCalculator(); |
| |
| @Override public final JsonElement serialize( |
| final RLESparseResourceAllocation resourceAllocation, |
| final Type typeOfSrc, final JsonSerializationContext context) { |
| NavigableMap<Long, Resource> myMap = resourceAllocation.getCumulative(); |
| JsonObject jo = new JsonObject(); |
| JsonElement element = gson.toJsonTree(myMap, type); |
| jo.add(KEY, element); |
| |
| return jo; |
| } |
| |
| @Override public final RLESparseResourceAllocation deserialize( |
| final JsonElement json, final Type typeOfT, |
| final JsonDeserializationContext context) throws JsonParseException { |
| NavigableMap<Long, Resource> resAllocation = |
| gson.fromJson(json.getAsJsonObject().get(KEY), type); |
| RLESparseResourceAllocation rleSparseResourceAllocation = |
| new RLESparseResourceAllocation(resAllocation, resourceCalculator); |
| return rleSparseResourceAllocation; |
| } |
| } |