Question about using ResourceBackedMetadataProvider

[Yaowen Tu]

Hi,
I am using the following code to retrieve the metadata file.
FileBackedHttpResource resource = new FileBackedHttpResource( metadataUrl,
metadataFile );
ResourceBackedMetadataProvider metadataProvider = new
ResourceBackedMetadataProvider( new Timer(), resource );
metadataProvider.setParserPool( new BasicParserPool() );
metadataProvider.setRequireValidMetadata( true );
metadataProvider.initialize();

Question 1:
I am not sure how to appropriately set the first parameter when initiate a
ResourceBackedMetadataProvider(Timer timer, Resource resource) object. What
should I do to the Timer? I think my current way is not ideal. Can you give
me some concrete example to show when the Timer is useful?

Quetion 2:
If I do not set anything else, I think the metadataProvider contains some
default time for refresh delay, cache duration, and interval. I assume the
metadataProvider will automatically refresh the local cached metadata file,
is it?

Best,
Yaowen
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