lh.api.showcase.client.operations.schedules.SchedulesResponseJsonParser.java Source code

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Here is the source code for lh.api.showcase.client.operations.schedules.SchedulesResponseJsonParser.java

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/*
 * Copyright 2015 Loic Merckel
 * 
 * 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 lh.api.showcase.client.operations.schedules;

import java.util.ArrayList;
import java.util.List;

import com.google.gwt.json.client.JSONArray;
import com.google.gwt.json.client.JSONObject;
import com.google.gwt.json.client.JSONParser;
import com.google.gwt.json.client.JSONString;
import com.google.gwt.json.client.JSONValue;

import lh.api.showcase.client.JsonParser;
import lh.api.showcase.client.operations.Flight;
import lh.api.showcase.client.operations.JsonParserFlightUtils;

public class SchedulesResponseJsonParser implements JsonParser<List<Schedule>> {

    @Override
    public List<Schedule> parse(String json) {

        List<Schedule> ret = new ArrayList<Schedule>();

        JSONValue jsv = JSONParser.parseStrict(json);
        JSONObject jobj = jsv.isObject();

        JSONValue jsScheduleResourceVal = jobj.get("ScheduleResource");
        JSONObject jsScheduleResourceObj = jsScheduleResourceVal.isObject();

        JSONValue jsScheduleVal = jsScheduleResourceObj.get("Schedule");
        JSONObject jsScheduleObj = jsScheduleVal.isObject();

        if (jsScheduleObj == null) {
            JSONArray jarraySchedule = jsScheduleVal.isArray();
            if (jarraySchedule != null) {
                for (int i = 0; i < jarraySchedule.size(); ++i) {
                    JSONObject jsScheduleObject = jarraySchedule.get(i).isObject();
                    Schedule schedule = getScheduleInfo(jsScheduleObject);
                    if (schedule != null) {
                        ret.add(schedule);
                    }
                }
            }
        } else {
            Schedule schedule = getScheduleInfo(jsScheduleObj);
            if (schedule != null) {
                ret.add(schedule);
            }
        }
        return ret;
    }

    private Schedule getScheduleInfo(JSONObject jsScheduleObj) {

        if (jsScheduleObj == null) {
            return null;
        }
        JSONValue jsTotalJourneyVal = jsScheduleObj.get("TotalJourney");
        JSONObject jsTotalJourneyObj = jsTotalJourneyVal.isObject();

        JSONString jsDurationStr = jsTotalJourneyObj.get("Duration").isString();

        List<Flight> flightList = new ArrayList<Flight>();
        JSONValue jsFlightVal = jsScheduleObj.get("Flight");
        JSONObject jsFlightObj = jsFlightVal.isObject();
        if (jsFlightObj == null) {
            JSONArray jarrayFlight = jsFlightVal.isArray();
            if (jarrayFlight != null) {
                for (int i = 0; i < jarrayFlight.size(); ++i) {
                    JSONObject jsFlightObject = jarrayFlight.get(i).isObject();
                    Flight flight = JsonParserFlightUtils.getFlightInfo(jsFlightObject);
                    if (flight != null) {
                        flightList.add(flight);
                    }
                }
            }
        } else {
            Flight flight = JsonParserFlightUtils.getFlightInfo(jsFlightObj);
            if (flight != null) {
                flightList.add(flight);
            }
        }

        return new Schedule((jsDurationStr == null) ? ("") : (jsDurationStr.toString().replace("\"", "")),
                flightList);
    }

}