Nsryjdtyk

I have imeplemented file caching on android using Jake Wharton's DiskLruCache. This is my implementation of the caching:

@Override

protected FileInputStream doInBackground(String... params) {

    String data = params[0];

    // Application class where i did open DiskLruCache

    DiskLruCache cache = MyApplication.getDiskCache(context);

    if (cache == null)

        return null;

    String key = hashKeyForDisk(data);

    final int DISK_CACHE_INDEX = 0;

    long currentMaxSize = cache.getMaxSize();

    float percentageSize = Math.round((cache.size() * 100.0f) / currentMaxSize);

    if (percentageSize >= 90) // cache size reaches 90%

        cache.setMaxSize(currentMaxSize + (10 * 1024 * 1024)); // increase size to 10MB

    try {

        DiskLruCache.Snapshot snapshot = cache.get(key);

        if (snapshot == null) {

            Log.i(getTag(), "Snapshot is not available downloading...");

            DiskLruCache.Editor editor = cache.edit(key);

            if (editor != null) {

                if (downloadUrlToStream(data, editor.newOutputStream(DISK_CACHE_INDEX)))

                    editor.commit();

                else

                    editor.abort();

            }

            snapshot = cache.get(key);

        } else

            Log.i(getTag(), "Snapshot found sending");

        if (snapshot != null)

            return (FileInputStream) snapshot.getInputStream(DISK_CACHE_INDEX);

    } catch (IOException e) {

        e.printStackTrace();

    }

    Log.i(getTag(), "File stream is null");

    return null;

}



public boolean downloadUrlToStream(String urlString, OutputStream outputStream) {

    HttpURLConnection urlConnection = null;

    try {

        final URL url = new URL(urlString);

        urlConnection = (HttpURLConnection) url.openConnection();

        InputStream stream = urlConnection.getInputStream();

        // you can use BufferedInputStream and BufferOuInputStream

        IOUtils.copy(stream, outputStream);

        IOUtils.closeQuietly(outputStream);

        IOUtils.closeQuietly(stream);

        Log.i(getTag(), "Stream closed all done");

        return true;

    } catch (final IOException e) {

        e.printStackTrace();

    } finally {

        if (urlConnection != null)

            IOUtils.close(urlConnection);

    }

    return false;

}

Now my problem would be on how to remove specific file from the cache? Is there some methods I am missing on the snapshot, or editor side of the lruCache? Thanks in advance.