Changeset 31912 for main/trunk/greenstone3/src/java/org/greenstone/gsdl3/collection/OAICollection.java

Timestamp:

2017-08-21T18:03:37+12:00 (7 years ago)

Author:

ak19

Message:

Now GS3 tries to obtain the _earliesttimestamp entry of the oai-inf.db for each collection to, work out the earliest among them to be the earliest timestamp of the repository. For each collection, if there is no such entry or the oai-inf db doesn't exist or can't be accessed, the collection falls back to using the value in the build config file as before. Also as before, if that doesn't exist either, it uses the lastmod date of the collection (I think also taken from build config) as the next fallback value.

File:

• main/trunk/greenstone3/src/java/org/greenstone/gsdl3/collection/OAICollection.java (modified) (1 diff)

main/trunk/greenstone3/src/java/org/greenstone/gsdl3/collection/OAICollection.java

@@ -150 +150 @@
       // pass the xml node to the service for configuration
       if (this.oai_service_rack.configure(oai_service_xml, extra_info)) {
+
+          // once we've configured the OAIPMH service, we can use the OAIPMH service to
+          // retrieve the earliest timestamp of the collection from the oai-inf db and
+          // overwrite Collection.earliestDatestamp with it.
+          long earliestTimestamp = this.oai_service_rack.getEarliestTimestamp();
+          if(earliestTimestamp == -1) {
+          //this.earliestDatestamp = -1;
+          logger.warn("No OAI timestamp for collection " + this.cluster_name
+                  + ". Falling back to using its earliestDatestamp from build config: " + this.earliestDatestamp);
+          } else {
+          this.earliestDatestamp = earliestTimestamp; // milliseconds
+          }
+          
         
         // find out the supported service types for this service module