com.acrutiapps.browser.tasks.SearchUrlTask.java Source code

Introduction

Here is the source code for com.acrutiapps.browser.tasks.SearchUrlTask.java

Source

/*
 * Tint Browser for Android
 * 
 * Copyright (C) 2012 - to infinity and beyond J. Devauchelle and contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 3 as published by the Free Software Foundation.
 *
 * This program 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 General Public License for more details.
 */

package com.acrutiapps.browser.tasks;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

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

import com.acrutiapps.browser.R;
import com.acrutiapps.browser.model.SearchUrlGroup;

import android.content.Context;
import android.os.AsyncTask;

public class SearchUrlTask extends AsyncTask<Void, Integer, String> {

    private Context mContext;
    private ISearchUrlTaskListener mListener;

    private Map<String, SearchUrlGroup> mResults;

    public SearchUrlTask(Context context, ISearchUrlTaskListener listener) {
        super();

        mContext = context;
        mListener = listener;

        mResults = new HashMap<String, SearchUrlGroup>();
    }

    public List<SearchUrlGroup> getResults() {
        List<SearchUrlGroup> result = new ArrayList<SearchUrlGroup>();
        for (SearchUrlGroup group : mResults.values()) {
            group.sort();
            result.add(group);
        }

        Collections.sort(result, new Comparator<SearchUrlGroup>() {
            @Override
            public int compare(SearchUrlGroup lhs, SearchUrlGroup rhs) {
                return lhs.getName().compareTo(rhs.getName());
            }
        });

        return result;
    }

    @Override
    protected String doInBackground(Void... params) {

        publishProgress(0);

        String message = null;
        HttpURLConnection c = null;

        try {
            URL url = new URL("http://anasthase.github.com/TintBrowser/search-engines.json");
            c = (HttpURLConnection) url.openConnection();

            c.connect();

            int responseCode = c.getResponseCode();

            if (responseCode == 200) {
                StringBuilder sb = new StringBuilder();

                InputStream is = c.getInputStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(is));

                String line;
                while ((line = reader.readLine()) != null) {
                    sb.append(line);
                }

                publishProgress(1);

                JSONArray jsonArray = new JSONArray(sb.toString());

                for (int i = 0; i < jsonArray.length(); i++) {
                    JSONObject jsonObject = jsonArray.getJSONObject(i);

                    String groupName = jsonObject.getString("group");

                    SearchUrlGroup group = mResults.get(groupName);
                    if (group == null) {
                        group = new SearchUrlGroup(groupName);
                        mResults.put(groupName, group);
                    }

                    JSONArray items = jsonObject.getJSONArray("items");
                    for (int j = 0; j < items.length(); j++) {
                        JSONObject item = items.getJSONObject(j);

                        group.addItem(item.getString("name"), item.getString("url"));
                    }
                }

            } else {
                message = String.format(mContext.getString(R.string.SearchUrlBadResponseCodeMessage),
                        Integer.toString(responseCode));
            }

        } catch (MalformedURLException e) {
            message = e.getMessage();
        } catch (IOException e) {
            message = e.getMessage();
        } catch (JSONException e) {
            message = e.getMessage();
        } finally {
            if (c != null) {
                c.disconnect();
            }
        }

        return message;
    }

    @Override
    protected void onProgressUpdate(Integer... values) {
        if (mListener != null) {
            mListener.onProgress(values[0]);
        }
    }

    @Override
    protected void onPostExecute(String result) {
        if (mListener != null) {
            mListener.onDone(result);
        }
    }

    public interface ISearchUrlTaskListener {

        void onProgress(int step);

        void onDone(String result);

    }

}