Module java.desktop

Class FileCacheImageInputStream

All Implemented Interfaces:
Closeable, DataInput, AutoCloseable, ImageInputStream

public class FileCacheImageInputStream
extends ImageInputStreamImpl
An implementation of ImageInputStream that gets its input from a regular InputStream. A file is used to cache previously read data.
  • Constructor Details

    • FileCacheImageInputStream

      public FileCacheImageInputStream​(InputStream stream, File cacheDir) throws IOException
      Constructs a FileCacheImageInputStream that will read from a given InputStream.

      A temporary file is used as a cache. If cacheDir is non-null and is a directory, the file will be created there. If it is null, the system-dependent default temporary-file directory will be used (see the documentation for File.createTempFile for details).

      stream - an InputStream to read from.
      cacheDir - a File indicating where the cache file should be created, or null to use the system directory.
      IllegalArgumentException - if stream is null.
      IllegalArgumentException - if cacheDir is non-null but is not a directory.
      IOException - if a cache file cannot be created.
  • Method Details