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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/57215/
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(Updated March 2, 2017, 10:48 a.m.)


Review request for Ambari, Nate Cole and Robert Levas.


Bugs: AMBARI-20262
    https://issues.apache.org/jira/browse/AMBARI-20262


Repository: ambari


Description
-------

Currently, Ambari uses Spring's {{ClassPathScanningCandidateComponentProvider}} 
along with an {{AnnotationTypeFilter}} to find classes annotated in our 
classpath:

```
      ClassPathScanningCandidateComponentProvider scanner =
          new ClassPathScanningCandidateComponentProvider(false);

      // match only singletons that are eager listeners
      for (Class<? extends Annotation> cls : classes) {
        scanner.addIncludeFilter(new AnnotationTypeFilter(cls));
      }

      beanDefinitions = scanner.findCandidateComponents(AMBARI_PACKAGE);
```

This takes roughly 19 seconds on normal deployments. We can reduce this time to 
roughly 8 seconds by switching over to Google's {{ClassPath}} via our internal 
{{ClasspathScannerUtils}}


Diffs (updated)
-----

  
ambari-server/src/main/java/org/apache/ambari/server/audit/AuditLoggerModule.java
 d8b8466 
  
ambari-server/src/main/java/org/apache/ambari/server/cleanup/ClasspathScannerUtils.java
 01487f0 
  
ambari-server/src/main/java/org/apache/ambari/server/cleanup/CleanupModule.java 
d2a7583 
  
ambari-server/src/main/java/org/apache/ambari/server/controller/ControllerModule.java
 8646e51 
  
ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UpgradeResourceProviderHDP22Test.java
 40c7e50 
  
ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UpgradeResourceProviderTest.java
 4d609b4 
  
ambari-server/src/test/java/org/apache/ambari/server/controller/internal/WidgetResourceProviderTest.java
 a4f6469 
  
ambari-server/src/test/java/org/apache/ambari/server/orm/InMemoryDefaultTestModule.java
 3090108 


Diff: https://reviews.apache.org/r/57215/diff/2/

Changes: https://reviews.apache.org/r/57215/diff/1-2/


Testing (updated)
-------

mvn clean test


Thanks,

Jonathan Hurley

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