| /* |
| * |
| * 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 org.apache.hadoop.yarn.api.records.Resource; |
| |
| 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; |
| |
| /** |
| * Serialize/deserialize Resource object to/from JSON. |
| */ |
| public class ResourceSerDe |
| implements JsonSerializer<Resource>, JsonDeserializer<Resource> { |
| private static final String KEY1 = "memory"; |
| private static final String KEY2 = "vcores"; |
| |
| @Override public final JsonElement serialize(final Resource resource, |
| final Type type, final JsonSerializationContext context) { |
| JsonObject jo = new JsonObject(); |
| jo.addProperty(KEY1, resource.getMemorySize()); |
| jo.addProperty(KEY2, resource.getVirtualCores()); |
| return jo; |
| } |
| |
| @Override public final Resource deserialize(final JsonElement json, |
| final Type type, final JsonDeserializationContext context) |
| throws JsonParseException { |
| JsonObject jo = json.getAsJsonObject(); |
| long mem = jo.getAsJsonPrimitive(KEY1).getAsLong(); |
| int vcore = jo.getAsJsonPrimitive(KEY2).getAsInt(); |
| Resource resource = Resource.newInstance(mem, vcore); |
| |
| return resource; |
| } |
| } |