com.musevisions.android.SudokuSolver.SudokuRetriever.java Source code

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Here is the source code for com.musevisions.android.SudokuSolver.SudokuRetriever.java

Source

/**
 * JSON Sudoku solver is covered under the Creative Commons Attribution 3.0 Unported License
 * http://creativecommons.org/licenses/by/3.0/
 * 
 * @author: Andrea Bizzotto {@link www.musevisions.com}, {@link www.bizzotto.biz}
 * @email: bizz84dev@gmail.com
 */
package com.musevisions.android.SudokuSolver;

import android.util.Log;

import java.io.IOException;

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

/**
 * Retrieves and organizes array of contents from remote URL
 */
public class SudokuRetriever {
    static private final String TAG = "SudokuRetriever";

    static private final String SERVER_URL = "http://www.musevisions.com/sudoku/generate.php";

    private JSONArray mContents;

    /**
     * Loads pictures data. This method may take long, so be sure to call it asynchronously without
     * blocking the main thread.
     */
    public synchronized void prepare() {
        // Clear in case images need to be updated
        long startTime = System.nanoTime();

        mContents = loadFromURL();

        long deltaTime = System.nanoTime() - startTime;
        double timeMs = (double) deltaTime / 1E6;

        Log.i(TAG, "Done querying URL in, " + timeMs + " ms. " + mContents.length() + " elements found.");
    }

    public JSONArray getContents() {
        return mContents;
    }

    private JSONArray loadFromURL() {

        try {
            return JSONHelper.readJsonFromUrl(SERVER_URL);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (JSONException e) {
            e.printStackTrace();
        }
        return null;
    }

}