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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/44784/
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Review request for Ambari, Jonathan Hurley, Laszlo Puskas, Nate Cole, and 
Sandor Magyari.


Bugs: AMBARI-15373
    https://issues.apache.org/jira/browse/AMBARI-15373


Repository: ambari


Description
-------

Provide an entry point in the REST API to retrieve the _composite_ Kerberos 
descriptor. This includes the default Kerberos descriptor built from the stack 
definitions overlaid with the (potentially sparse) Kerberos descriptor stored 
as an artifact of the cluster. 

The entry point should be a read-only sub-resource of "clusters", and should 
only be made available if asked for explicitly due to the size of the data that 
will be returned.

#Example API call}
```
GET /api/v1/clusters/:cluster_name/kerberos_descriptors/COMPOSITE
```
Note: Kerberos Descriptors available via this interface are:
- STACK - the default Kerberos Descriptor from the relevant stack definition
- USER - the user-suppled updates to the stack default Kerberos Descriptor
- COMPOSITE - the stack default Kerberos Descriptor with the user-suppled 
updates applied (this is the Kerberos Descriptor used when performing 
Kerberos-related operations)


Diffs
-----

  
ambari-server/src/main/java/org/apache/ambari/server/api/resources/ClusterResourceDefinition.java
 e57364f 
  
ambari-server/src/main/java/org/apache/ambari/server/api/resources/ResourceInstanceFactoryImpl.java
 d10b7a8 
  
ambari-server/src/main/java/org/apache/ambari/server/api/services/ClusterKerberosDescriptorService.java
 PRE-CREATION 
  
ambari-server/src/main/java/org/apache/ambari/server/api/services/ClusterService.java
 8e9b771 
  
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/AbstractControllerResourceProvider.java
 586924b 
  
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/ClusterKerberosDescriptorResourceProvider.java
 PRE-CREATION 
  
ambari-server/src/main/java/org/apache/ambari/server/controller/spi/Resource.java
 85fd649 
  
ambari-server/src/test/java/org/apache/ambari/server/api/resources/ClusterResourceDefinitionTest.java
 cb68dfa 
  
ambari-server/src/test/java/org/apache/ambari/server/api/resources/ResourceInstanceFactoryImplTest.java
 e761a72 
  
ambari-server/src/test/java/org/apache/ambari/server/api/services/ClusterKerberosDescriptorServiceTest.java
 PRE-CREATION 
  
ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AbstractControllerResourceProviderTest.java
 796c509 
  
ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ClusterKerberosDescriptorResourceProviderTest.java
 PRE-CREATION 

Diff: https://reviews.apache.org/r/44784/diff/


Testing
-------

Manually tests

# Local test results:

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1:03:06.043s
[INFO] Finished at: Sun Mar 13 11:53:32 EDT 2016
[INFO] Final Memory: 71M/867M
[INFO] ------------------------------------------------------------------------

# Jenkins test results: PENDING


Thanks,

Robert Levas

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