edu.mit.media.funf.config.DefaultScheduleSerializer.java Source code

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Here is the source code for edu.mit.media.funf.config.DefaultScheduleSerializer.java

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/**
 * 
 * Funf: Open Sensing Framework
 * Copyright (C) 2010-2011 Nadav Aharony, Wei Pan, Alex Pentland.
 * Acknowledgments: Alan Gardner
 * Contact: nadav@media.mit.edu
 * 
 * This file is part of Funf.
 * 
 * Funf is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 * 
 * Funf is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with Funf. If not, see <http://www.gnu.org/licenses/>.
 * 
 */
package edu.mit.media.funf.config;

import java.lang.reflect.Type;
import java.util.Arrays;

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

import edu.mit.media.funf.Schedule.DefaultSchedule;

public class DefaultScheduleSerializer implements JsonSerializer<DefaultSchedule> {

    private static final String VALUE = "value", INTERVAL = "interval", DURATION = "duration",
            OPPORTUNISTIC = "opportunistic", STRICT = "strict";

    static {
        // Ensure expected methods exist
        for (String methodName : Arrays.asList(VALUE, INTERVAL, DURATION, OPPORTUNISTIC, STRICT)) {
            try {
                DefaultSchedule.class.getMethod(methodName);
            } catch (SecurityException e) {
                throw new RuntimeException("Default schedule does not have expected accessible method.");
            } catch (NoSuchMethodException e) {
                throw new RuntimeException("Default schedule does not have expected accessible method.", e);
            }
        }
    }

    @Override
    public JsonElement serialize(DefaultSchedule src, Type typeOfSrc, JsonSerializationContext context) {
        JsonObject jsonObject = new JsonObject();
        // TODO: figure out what to do with value
        if (!"".equals(src.value())) {
            jsonObject.addProperty(VALUE, src.value());
        }
        jsonObject.addProperty(RuntimeTypeAdapterFactory.TYPE, src.type().getName());
        jsonObject.addProperty(INTERVAL, src.interval());
        jsonObject.addProperty(DURATION, src.duration());
        jsonObject.addProperty(OPPORTUNISTIC, src.opportunistic());
        jsonObject.addProperty(STRICT, src.strict());
        return jsonObject;
    }

}