Android Open Source - sthlmtraveling Sites Store

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From Project

Back to project page sthlmtraveling.

License

The source code is released under:

Apache License

Java Source Code

package com.markupartist.sthlmtraveling.provider.site;
/*from  w w w  . ja v a  2 s. c o m*/
import android.content.Context;
import android.location.Location;
import android.util.Log;

import com.markupartist.sthlmtraveling.utils.HttpHelper;
import com.markupartist.sthlmtraveling.utils.LocationUtils;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URLEncoder;
import java.util.ArrayList;

import static com.markupartist.sthlmtraveling.provider.ApiConf.apiEndpoint2;

public class SitesStore {
    private static SitesStore sInstance;

    private SitesStore() {
    }

    public static SitesStore getInstance() {
        if (sInstance == null) {
            sInstance = new SitesStore();
        }
        return sInstance;
    }

    public ArrayList<Site> getSite(final Context context, final String name) throws IOException {
        return getSiteV2(context, name);
    }

    public ArrayList<Site> getSiteV2(final Context context, final String name) throws IOException {
        return getSiteV2(context, name, true);
    }

    public ArrayList<Site> getSiteV2(final Context context, final String name, final boolean onlyStations) throws IOException {
        HttpHelper httpHelper = HttpHelper.getInstance(context);
        String onlyStationsParam = onlyStations ? "true" : "false";
        HttpURLConnection connection = httpHelper.getConnection(apiEndpoint2() + "v1/site/"
                + "?q=" + URLEncoder.encode(name, "UTF-8")
                + "&onlyStations=" + onlyStationsParam);

        if (connection.getResponseCode() != 200) {
            throw new IOException("Server error while fetching sites");
        }

        ArrayList<Site> sites = new ArrayList<Site>();
        try {
            JSONObject jsonResponse = new JSONObject(httpHelper.getBody(connection));
            if (!jsonResponse.has("sites")) {
                throw new IOException("Invalid input.");
            }
            JSONArray jsonSites = jsonResponse.getJSONArray("sites");
            for (int i = 0; i < jsonSites.length(); i++) {
                try {
                    sites.add(Site.fromJson(jsonSites.getJSONObject(i)));
                } catch (JSONException e) {
                    // Ignore errors here.
                }
            }
        } catch (JSONException e) {
            throw new IOException("Invalid input.");
        }

        return sites;
    }

    /**
     * Find nearby {@link Site}s.
     * 
     * @param location The location.
     * @return A list of {@link Site}s.
     * @throws IOException If failed to communicate with headend or if we can
     * not parse the response.
     */
    public ArrayList<Site> nearby(Context context, Location location) throws IOException {
        String endpoint = apiEndpoint2() + "semistatic/site/near/"
                + "?latitude=" + location.getLatitude()
                + "&longitude=" + location.getLongitude()
                + "&max_distance=0.8"
                + "&max_results=20";

        HttpHelper httpHelper = HttpHelper.getInstance(context);
        HttpURLConnection connection = httpHelper.getConnection(endpoint);

        if (connection.getResponseCode() != 200) {
            Log.w("SiteStore", "Expected 200, got " + connection.getResponseCode());
            throw new IOException("A remote server error occurred when getting sites.");
        }

        String rawContent = httpHelper.getBody(connection);
        ArrayList<Site> stopPoints = new ArrayList<Site>();
        try {
            JSONObject jsonSites = new JSONObject(rawContent);
            if (jsonSites.has("sites")) {
                JSONArray jsonSitesArray = jsonSites.getJSONArray("sites");
                for (int i = 0; i < jsonSitesArray.length(); i++) {
                    try {
                        JSONObject jsonStop = jsonSitesArray.getJSONObject(i);

                        Site site = new Site();
                        site.setName(jsonStop.getString("name"));
                        site.setId(jsonStop.getInt("site_id"));
                        String locationData = jsonStop.optString("location");
                        if(locationData != null) {
                            site.setLocation(LocationUtils.parseLocation(locationData));
                        }

                        stopPoints.add(site);
                    } catch (JSONException e) {
                        // Ignore errors here.
                    }
                }
            } else {
                throw new IOException("Sites is not present in response.");
            }
        } catch (JSONException e) {
            throw new IOException("Invalid response.");
        }

        return stopPoints;
    }

}

Java Source Code List

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