[SOLR-465] Add configurable DirectoryProvider so that alternate Directory implementations can be specified via solrconfig.xml

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3
• Fix Version/s: 1.4
• Assignee: Yonik Seeley
• Reporter: TJ Laurenzo
• Created: 23/Jan/08 15:08
• Updated: 13/Aug/09 14:13
• Resolved: 28/Apr/09 19:15

Description

Solr is presently hard-coded to use the FSDirectory implementation in Lucene. Other Directory implementations are possible. This patch creates a new DirectoryProvider interface and extends SolrCore to load an implementation of it from solrconfig.xml (if specified). If not specified, then it will fallback to the FSDirectory.

A DirectoryProvider plugin can be configured in solrconfig.xml with the following XML:
<directoryProvider class="class.name">
<!-- Parameters as required by the implementation -->
</directoryProvider>

This patch was created against solr trunk checked out on 11/20/2007. Most of it is new code and should apply cleanly or with minor relocation. If it does not, let me know and I will update.

Issue Links

• is duplicated by: SOLR-480 Use RAMDirectory instead of FSDirectory when searching
• relates to: SOLR-243 Create a hook to allow custom code to create custom IndexReaders