lh.api.showcase.client.JsonParserUtils.java Source code

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Here is the source code for lh.api.showcase.client.JsonParserUtils.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;

import java.util.HashMap;
import java.util.Map;

import lh.api.showcase.client.referencedata.airports.Airport;
import lh.api.showcase.shared.LanguageCode;

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

public class JsonParserUtils {

    private JsonParserUtils() {
        super();
        throw new IllegalStateException();
    }

    public static void getNameInfo(JSONObject jsNameObj, Map<LanguageCode, String> res) {
        JSONValue jsLang = jsNameObj.get("@LanguageCode");
        JSONString jsLangStr = jsLang.isString();

        JSONValue jsNameVal = jsNameObj.get("$");
        JSONString jsNameStr = jsNameVal.isString();

        res.put(LanguageCode.valueOf(jsLangStr.toString().replace("\"", "").toUpperCase()),
                jsNameStr.toString().replace("\"", ""));
    }

    public static Map<LanguageCode, String> getNamesMap(JSONObject jsNamesObj) {

        Map<LanguageCode, String> res = new HashMap<LanguageCode, String>();

        JSONValue jsNameVal = jsNamesObj.get("Name");
        JSONObject jsNameObj = jsNameVal.isObject();

        if (jsNameObj == null) {

            JSONArray jsNameArray = jsNameVal.isArray();
            if (jsNameArray != null) {
                for (int i = 0; i < jsNameArray.size(); ++i) {

                    JSONObject jsTmpNamesObj = jsNameArray.get(i).isObject();
                    if (jsTmpNamesObj == null) {
                        continue;
                    }
                    JsonParserUtils.getNameInfo(jsTmpNamesObj, res);
                }
            }
        } else {
            JsonParserUtils.getNameInfo(jsNameObj, res);
        }
        return res;
    }

    public static Airport getAirportInfo(JSONObject jsAirportObj) {

        JSONValue jsAirportCodeVal = jsAirportObj.get("AirportCode");
        JSONValue jsCityCodeVal = jsAirportObj.get("CityCode");
        JSONValue jsCountryCodeVal = jsAirportObj.get("CountryCode");
        JSONValue jsLocationTypeVal = jsAirportObj.get("LocationType");

        if (jsAirportCodeVal == null || jsCityCodeVal == null || jsCountryCodeVal == null
                || jsLocationTypeVal == null) {
            return null;
        }
        JSONString jsAirportCodeStr = jsAirportCodeVal.isString();
        JSONString jsCityCodeStr = jsCityCodeVal.isString();
        JSONString jsCountryCodeStr = jsCountryCodeVal.isString();
        JSONString jsLocationTypeStr = jsLocationTypeVal.isString();

        JSONObject jsCoordinateObj = jsAirportObj.get("Position").isObject().get("Coordinate").isObject();
        JSONNumber jsLatitudeNum = jsCoordinateObj.get("Latitude").isNumber();
        JSONNumber jsLongitudeNum = jsCoordinateObj.get("Longitude").isNumber();

        JSONObject jsNamesObj = jsAirportObj.get("Names").isObject();

        return new Airport((jsAirportCodeStr == null) ? ("") : (jsAirportCodeStr.toString().replace("\"", "")),
                (jsCityCodeStr == null) ? ("") : (jsCityCodeStr.toString().replace("\"", "")),
                (jsCountryCodeStr == null) ? ("") : (jsCountryCodeStr.toString().replace("\"", "")),
                (jsLocationTypeStr == null) ? ("") : (jsLocationTypeStr.toString().replace("\"", "")),
                jsLatitudeNum.doubleValue(), jsLongitudeNum.doubleValue(), JsonParserUtils.getNamesMap(jsNamesObj));

    }

    public static String getAircraftCode(JSONValue jsAircraftCodeVal) {
        if (jsAircraftCodeVal == null) {
            return null;
        }
        JSONString jsAircraftCodeStr = jsAircraftCodeVal.isString();
        JSONNumber jsAircraftCodeNum = null;
        if (jsAircraftCodeStr == null) {
            jsAircraftCodeNum = jsAircraftCodeVal.isNumber();
        }
        return (jsAircraftCodeStr != null) ? (jsAircraftCodeStr.toString().replace("\"", ""))
                : ((jsAircraftCodeNum != null) ? (String.valueOf(jsAircraftCodeNum.doubleValue())) : (""));
    }
}