[SOLR-938] DataImportHandler: Add close hooks to the completion of a full-import process

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4
• Fix Version/s: 1.4
• Component/s: contrib - DataImportHandler

Environment

JRE 6, Tomcat 6

• Assignee: Shalin Shekhar Mangar
• Reporter: Karthik K
• Created: 24/Dec/08 17:15
• Updated: 19/Jan/09 22:19
• Resolved: 08/Jan/09 12:52

Description

Adding a new feature that we need for continuation of a workflow based on a full-import procedure. When a full-import completes , the pre-defined hook method is called at the end of the same.

Implementations that need to notified , need to implement the new interface - DataImportCloseHook and register themselves in the data config file as follows.

<dataConfig>

.
.
.
.
<closeHook type="com.myorg.fullimporter.closeHookImpl1" />
<closeHook type="com.myorg.fullimporter.closeHookImpl2" />
</dataConfig>

A single instance of them is created (as part of DataImporter) during instantiation and the same insance is reused across multiple invocations.

Since the dataImporter is protected by a thread-lock - there is no thred-safe guarantee for the implementations of the full-import close hook.

Issue Links

• relates to: SOLR-972 EventListener-s creation changed from a per request ( full / delta-imports) scenario to once through the lifetime of the DIH plugin.