[jira] [Created] (TAP5-2364) beta15 breaks Google App Engine & other Production environments

["Jonathan Williams (JIRA)" <ji...@apache.org>]

Jonathan Williams created TAP5-2364:
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             Summary: beta15 breaks Google App Engine & other Production environments
                 Key: TAP5-2364
                 URL: https://issues.apache.org/jira/browse/TAP5-2364
             Project: Tapestry 5
          Issue Type: Bug
          Components: tapestry-webresources
    Affects Versions: 5.4
            Reporter: Jonathan Williams


beta15 breaks GAE & some other prod environments
I have a couple of app engine apps that are broken w/ beta15
This is due to use of java.io.File to mkdir, which is prohibited on app engine and is more generally considered a JEE no-no.

...
ResourceTransformerFactoryImpl creates a File for the asset cache directory.
This breaks my app in GAE, since creating a new File is prohibited.

...
it looks like the cache is only used in development
mode but still references File in production (thus breaking GAE). Perhaps a
proper fix will involve a pluggable cache which does nothing in production
mode.

As a workaround you can override the ResourceTransformerFactory via ioc
with an implementation that doesn't reference java.io.File. Most likely a
copy/paste/tweak of the current version.

...
Note, this could also break non GAE environments since it calls mkdirs() on
@Symbol(WebResourcesSymbols.CACHE_DIR). For example a unix server without
write permission.



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