Jeremy Whitlock 197284471e Adds plumbing to the jclouds core to allow for refactoring the provider plugin
system, which initially will only be used for object metadata related to
cloud providers.

* .gitignore: Added an ignore pattern for Emacs etags file (TAGS).

[in core/src/main/java]

* org/jclouds/providers/ProviderMetadata.java: Added.
  (This file is a simple interface cloud providers will implement to be
   pluggable into this new plugin system.)

* org/jclouds/providers/ProviderPredicates.java: Added.
  (This file contains predicates that will filter Iterable<ProviderMetadata>
   objects.)

* org/jclouds/providers/Providers.java: Added.
  (This file contains "simplicity methods" for getting available cloud
   providers based on certain criteria, like by type or by id.)

[in core/src/test/java]

* org/jclouds/providers/JcloudsTestBlobStoreProviderMetadata.java,
  org/jclouds/providers/JcloudsTestComputeProviderMetadata.java: Added.
  (These files are implementations of org.jclouds.providers.ProviderMetadata
   used for testing purposes.)

* org/jclouds/providers/ProvidersTest.java: Added.
  (This file tests org.jclouds.providers.Providers.)

[in src/test/resources]

* META-INF/services/org.jclouds.providers.ProviderMetadata: Added.
  (This file is used by java.util.ServiceLoader to locate the available
   cloud provider implementations on the classpath.)
2011-05-06 17:05:00 -06:00
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