us.zuercher.gpx2map.image.netpbm
Interface NetpbmImageFactory.GzipRetryLogicTarget

All Known Implementing Classes:

NetpbmImageFactory.CanLoadLogicTarget, NetpbmImageFactory.LoadImageLogicTarget

Enclosing class:

NetpbmImageFactory

private static interface NetpbmImageFactory.GzipRetryLogicTarget

Method Summary

Object

performAction(BufferedInputStream input, NetpbmImageFactory.ExceptionHolder exceptionHolder) Perform the desired action as a result of opening a Netpbm image stream.

Method Detail

performAction

Object performAction(BufferedInputStream input,
                     NetpbmImageFactory.ExceptionHolder exceptionHolder)
                     throws IOException

Perform the desired action as a result of opening a Netpbm image stream.

Parameters:

input - a BufferedInputStream on the image file or URL

exceptionHolder - a holder for exceptions related to loading the image -- exceptions stored here are indicative of a problem with the image data. If the data cannot be read at all, an IOException should be thrown directly.

Returns:

an Image or null if the file was wrong format or an exception was stored in the holder

Throws:

IOException - if the file cannot be read at all or if the input doesn't support mark/reset