co.cask.cdap.internal.app.runtime.codec.ProgramOptionsCodec.java Source code

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Here is the source code for co.cask.cdap.internal.app.runtime.codec.ProgramOptionsCodec.java

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/*
 * Copyright  2015 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.runtime.codec;

import co.cask.cdap.app.runtime.Arguments;
import co.cask.cdap.app.runtime.ProgramOptions;
import co.cask.cdap.internal.app.runtime.SimpleProgramOptions;
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 java.lang.reflect.Type;

/**
 * A Gson codec for {@link ProgramOptions}.
 */
public class ProgramOptionsCodec implements JsonSerializer<ProgramOptions>, JsonDeserializer<ProgramOptions> {

    @Override
    public ProgramOptions deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
            throws JsonParseException {
        JsonObject jsonObj = json.getAsJsonObject();
        String name = jsonObj.get("name").getAsString();
        Arguments arguments = context.deserialize(jsonObj.get("arguments"), Arguments.class);
        Arguments userArguments = context.deserialize(jsonObj.get("userArguments"), Arguments.class);
        boolean debug = jsonObj.get("debug").getAsBoolean();

        return new SimpleProgramOptions(name, arguments, userArguments, debug);
    }

    @Override
    public JsonElement serialize(ProgramOptions src, Type typeOfSrc, JsonSerializationContext context) {
        JsonObject json = new JsonObject();
        json.addProperty("name", src.getName());
        json.add("arguments", context.serialize(src.getArguments(), Arguments.class));
        json.add("userArguments", context.serialize(src.getUserArguments(), Arguments.class));
        json.addProperty("debug", src.isDebug());

        return json;
    }
}