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https://issues.apache.org/jira/browse/FOP-2912?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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CARL BUXBAUM updated FOP-2912:
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Attachment: BRResourceResolver.java
> Short circuit with FileNotFoundException when a URL is empty
> ------------------------------------------------------------
>
> Key: FOP-2912
> URL: https://issues.apache.org/jira/browse/FOP-2912
> Project: FOP
> Issue Type: Wish
> Components: image/unqualified
> Affects Versions: 2.4
> Reporter: CARL BUXBAUM
> Priority: Major
> Attachments: BRResourceResolver.java, patch.diff
>
> Original Estimate: 0.5h
> Remaining Estimate: 0.5h
>
> Hi, We use FOP to generate pdf reports through xsl-fo. Sometimes the dynamic
> data from the xml results in an empty URL being passed to external-graphic
> src. This makes its way through ExternalGraphic.java, and ends up in a
> needless and wasteful OS call to list the directory where our images are
> stored ([file://|file:///]<our_imagestore>/). Some of our customers also
> have hundreds of thousands of images in that top level directory, and the OS
> dir call takes an immense amount of time to return (with a
> FileNotFoundException).
> We are trying out this code in ExternalGraphic.java, line 80-81 (change in
> blue) in the trunk:
>
> public void bind(PropertyList pList) throws FOPException {
> super.bind(pList);
> src = pList.get(PR_SRC).getString();
> //Additional processing: obtain the image's intrinsic size and baseline
> information
> url = URISpecification.getURL(src);
> FOUserAgent userAgent = getUserAgent();
> ImageManager manager = userAgent.getImageManager();
> ImageInfo info = null;
> {color:#0747a6}try {{color}
> {color:#0747a6} if (url == null || url.trim().isEmpty() ||
> url.trim().equals("") || url.endsWith("/" ) || url.endsWith("{color}
> {color:#0747a6} ")){color}
> {color:#0747a6} { {color}{color:#0747a6} throw new
> FileNotFoundException("URL is not complete");
> }{color}
> info = manager.getImageInfo(url, userAgent.getImageSessionContext());
> -------
> It would be great if something like this could be adopted into the code so we
> do not need to maintain our own version. I cannot think of a use case where
> an empty URL or a URL that specifies a directory would be valid (except maybe
> where a default file is served from a directory using http)?
> Please let me know what you think.
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