Android Open Source - PkRSS Utils

From Project

Back to project page PkRSS.

License

The source code is released under:

Apache License

If you think the Android project PkRSS listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package com.pkmmte.pkrss;
/*from  w  w  w  . j  a  v a  2  s  .  c  om*/
import android.content.Context;
import android.util.Log;
import com.pkmmte.pkrss.downloader.DefaultDownloader;
import com.pkmmte.pkrss.downloader.Downloader;
import com.pkmmte.pkrss.downloader.OkHttpDownloader;
import java.io.File;

public class Utils {
  private static final String TAG = "Utils";

  /**
   * Deletes the specified directory. Returns true if successful, false if not.
   *
   * @param dir Directory to delete.
   * @return {@code true} if successful, {@code false} if otherwise.
   */
  public static boolean deleteDir(File dir) {
    if (dir != null && dir.isDirectory()) {
      String[] children = dir.list();
      for (int i = 0; i < children.length; i++) {
        if (!deleteDir(new File(dir, children[i])))
          return false;
      }
    }
    return dir.delete();
  }

  /**
   * Creates a Downloader object depending on the dependencies present.
   *
   * @param context Application context.
   * @return {@link OkHttpDownloader} if the OkHttp library is present, {@link DefaultDownloader} if not.
   */
  public static Downloader createDefaultDownloader(Context context) {
    boolean okUrlFactory = false;
    try {
      Class.forName("com.squareup.okhttp.OkUrlFactory");
      okUrlFactory = true;
    } catch (ClassNotFoundException ignored) {}

    boolean okHttpClient = false;
    try {
      Class.forName("com.squareup.okhttp.OkHttpClient");
      okHttpClient = true;
    } catch (ClassNotFoundException ignored) {}

    if (okHttpClient != okUrlFactory) {
      throw new RuntimeException(""
                                   + "PkRSS detected an unsupported OkHttp on the classpath.\n"
                                   + "To use OkHttp with this version of PkRSS, you'll need:\n"
                                   + "1. com.squareup.okhttp:okhttp:1.6.0 (or newer)\n"
                                   + "2. com.squareup.okhttp:okhttp-urlconnection:1.6.0 (or newer)\n"
                                   + "Note that OkHttp 2.0.0+ is supported!");
    }

    Log.d(TAG, "Downloader is " + (okHttpClient ? "OkHttpDownloader" : "DefaultDownloader"));
    return okHttpClient ? new OkHttpDownloader(context) : new DefaultDownloader(context);
  }
}

Java Source Code List