co.cask.cdap.internal.app.ResourceSpecificationCodec.java Source code

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Here is the source code for co.cask.cdap.internal.app.ResourceSpecificationCodec.java

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/*
 * Copyright  2014 Cask Data, Inc.
 *
 * Licensed 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 co.cask.cdap.internal.app;

import co.cask.cdap.api.ResourceSpecification;
import co.cask.cdap.api.Resources;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;

import java.lang.reflect.Type;

/**
 *
 */
final class ResourceSpecificationCodec extends AbstractSpecificationCodec<ResourceSpecification> {

    @Override
    public JsonElement serialize(ResourceSpecification src, Type typeOfSrc, JsonSerializationContext context) {
        JsonObject jsonObj = new JsonObject();

        jsonObj.add("virtualCores", new JsonPrimitive(src.getVirtualCores()));
        jsonObj.add("memoryMB", new JsonPrimitive(src.getMemoryMB()));

        return jsonObj;
    }

    @Override
    public ResourceSpecification deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
            throws JsonParseException {
        JsonObject jsonObj = json.getAsJsonObject();

        int cores = jsonObj.get("virtualCores").getAsInt();
        int memorySize = jsonObj.get("memoryMB").getAsInt();

        return new Resources(memorySize, cores);
    }
}