/// <summary>
/// Gets the directory to use to store the given key.
/// </summary>
/// <param name="resourceId">
/// The id of the file we're going to store.
/// </param>
/// <returns>The directory to store the file in.</returns>
private string GetSubdirectoryPath(string resourceId)
{
int hashCode = HashCodeUtil.HashCode(resourceId);
string subdirectory = Math.Abs(hashCode % SHARDING_BUCKET_COUNT).ToString();
return(Path.Combine(_versionDirectory.FullName, subdirectory));
}
/// <summary>
/// Instantites the <see cref="BitmapMemoryCacheKey"/>.
/// </summary>
public BitmapMemoryCacheKey(
string sourceString,
ResizeOptions resizeOptions,
bool autoRotated,
ImageDecodeOptions imageDecodeOptions,
ICacheKey postprocessorCacheKey,
string postprocessorName,
object callerContext)
{
_sourceString = Preconditions.CheckNotNull(sourceString);
_resizeOptions = resizeOptions;
_autoRotated = autoRotated;
_imageDecodeOptions = imageDecodeOptions;
_postprocessorCacheKey = postprocessorCacheKey;
_postprocessorName = postprocessorName;
_hash = HashCodeUtil.HashCode(
sourceString.GetHashCode(),
(resizeOptions != null) ? resizeOptions.GetHashCode() : 0,
autoRotated ? true.GetHashCode() : false.GetHashCode(),
_imageDecodeOptions,
_postprocessorCacheKey,
postprocessorName);
_callerContext = callerContext;
_cacheTime = SystemClock.UptimeMillis;
}
/// <summary>
/// Custom GetHashCode method.
/// </summary>
public override int GetHashCode()
{
return(HashCodeUtil.HashCode(CacheChoice, SourceUri, SourceFile));
}
/// <summary>
/// Calculates the hash code basing on width and height.
/// </summary>
public override int GetHashCode()
{
return(HashCodeUtil.HashCode(Width, Height));
}