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 Understanding Consumers in Apache Archiva
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 Maria Odea Ching
 Olivier Lamy
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 2011-12-18
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Understanding Consumers in Apache Archiva

 Archiva makes use of the concept of consumers. Consumers are components which consumes or processes an artifact. There is on type
 of consumers in Archiva: repository content consumers.

* Repository Content Consumers
  
  The repository content consumers consume or process artifacts during repository scanning. For every artifact found in the repository,
  each consumer processes them. There are 8 available repository content consumers which can be configured in the Repository Scanning
  page. These are:
  
  * <<auto-remove>> - Removes files in the repository being scanned if the file type matches any of the configured file types to be removed.  
  
  * <<auto-rename>> - Automatically renames common artifact mistakes. 
  
  * <<create-missing-checksums>> - Creates the md5 and sha1 checksum files of the artifact if there are none available in the repository.  
  
  * <<index-content>> - Adds the content of the artifact (specifically the pom) to the index, allowing the artifact to be searched in Archiva.
  
  * <<metadata-updater>> - Updates artifact metadata files depending on the content of the repository.  
  
  * <<repository-purge>> - Removes old snapshots from the repository either by the number of days old or by the retention count.

  * <<validate-checksums>> - Validates the checksum files of the artifact.

  * <<create-archiva-metadata>> - Take an artifact off of disk and put it into the metadata repository.

  * <<duplicate-artifacts>> - Search the artifact repository of known SHA1 Checksums for potential duplicate artifacts.

  []

  
[../images/consumers.png]