Changeset 25892

Timestamp:

2012-07-03T19:53:05+12:00 (12 years ago)

Author:

ak19

Message:

First commit for allowing a SOLR collection to be activated without having to run ant restart to get Greenstone to allow searching the updated solr index.

Files:

• gs3-extensions/solr/trunk/src/src/java/org/greenstone/gsdl3/service/GS2SolrSearch.java (modified) (2 diffs)
• main/trunk/greenstone2/bin/script/activate.pl (modified) (5 diffs)

gs3-extensions/solr/trunk/src/src/java/org/greenstone/gsdl3/service/GS2SolrSearch.java

@@ -74 +74 @@
 
                 String solr_home_str = GSFile.extHome(gsdl3_home, solr_ext_name);
-                File solr_home = new File(solr_home_str);
-                File solr_xml = new File(solr_home, "solr.xml");
-
-                all_solr_cores = new CoreContainer(solr_home_str, solr_xml);
+
+                all_solr_cores = new CoreContainer(solr_home_str);
             }
             catch (Exception e)
@@ -91 +89 @@
     public boolean configure(Element info, Element extra_info)
     {
-        if (!super.configure(info, extra_info))
-        {
-            return false;
-        }
-
+        boolean success = super.configure(info, extra_info);
+
+        // 1. Make the CoreContainer reload solr.xml
+        // This is particularly needed for when activate.pl is executed during
+        // a running GS3 server. At that point, the solr collection is reactivated and 
+        // we need to tell Greenstone that the solr index has changed. This requires
+        // the CoreContainer to reload the solr.xml file, and it all works again.
+
+        solr_core_cache.clear(); // clear the map of existing solr cores
+        
+        // Reload the updated solr.xml into the CoreContainer
+        // (Doing an all_solr_cores.shutdown() first doesn't seem to be required)
+        try {   
+            String solr_home_str = all_solr_cores.getSolrHome();
+            File solr_home = new File(solr_home_str);
+            File solr_xml = new File( solr_home,"solr.xml" );
+            
+            all_solr_cores.load(solr_home_str,solr_xml);
+        } catch (Exception e) {
+            logger.error("Exception in GS2SolrSearch.configure(): " + e.getMessage());
+            e.printStackTrace();
+            return false;
+        }
+        
+        if(!success) {
+            return false;
+        }
+        
+        // 2. Setting up facets
         Element searchElem = (Element) GSXML.getChildByTagName(extra_info, GSXML.SEARCH_ELEM);
         NodeList configIndexElems = searchElem.getElementsByTagName(GSXML.INDEX_ELEM);

main/trunk/greenstone2/bin/script/activate.pl

@@ -430 +430 @@
     my $build_dir = undef;
     my $index_dir = undef;
-    my $site = undef;
+    my $site = undef;
     
     my $removeold = 0;
     my $keepold = 0;
-    
+    my $incremental = 0; # used by solr
+
     my $library_url = undef; # to be specified on the cmdline if not using a GS-included web server
     
@@ -455 +456 @@
         elsif ($arg eq "-keepold") {
             $keepold = 1;
+        }
+        elsif ($arg eq "-incremental") {
+            $incremental = 1;
         }
         elsif ($arg eq "-library_url") {
@@ -595 +599 @@
     # If keepold: move building's contents into index, where only duplicates will get deleted.
     # removeold and keepold can't both be on at the same time
-    ($removeold, $keepold) = &scriptutil::check_removeold_and_keepold($removeold, $keepold, 
-                           0, # incremental is irrelevant to what activate.pl does, setting this = 0
+        # incremental becomes relevant for solr, though it was irrelevant to what activate.pl does (moving building to index)
+    my $incremental_mode;
+    ($removeold, $keepold, $incremental, $incremental_mode) = &scriptutil::check_removeold_and_keepold($removeold, $keepold, 
+                           $incremental,
                            $build_dir, # checkdir. Usually archives or export to be deleted. activate.pl deletes building 
                            $collectcfg);
@@ -639 +645 @@
         }
     }
-    elsif ($keepold) {
-            if ($buildtype eq "solr") { ### no building- prefix for keepold incremental case?
+    elsif ($keepold || $incremental) {
+            if ($buildtype eq "solr") {
             # if solr, remove any cores that may be using the building_dir before moving this dir onto index
             foreach my $corename (@corenames) {         
@@ -652 +658 @@
         &util::mv_dir_contents($build_dir, $index_dir);
     }
-    
+
     if ($buildtype eq "solr") {
-    # Call CREATE action to get all cores pointing to the index folder, since building is now index
-    ### Should already be using the index_dir directory for $keepold (incremental) case? Then call RELOAD CORE
+    # Call CREATE action to get the old cores pointing to the index folder
     foreach my $corename (@corenames) {
         if($removeold) {
+        # Call CREATE action to get all cores pointing to the index folder, since building is now index
         $solr_server->admin_create_core($corename, $index_dir);
-        } elsif ($keepold) {
-        $solr_server->admin_reload_core($corename); 
+        
+        } elsif ($keepold || $incremental) { 
+        # Call RELOAD core. Should already be using the index_dir directory for $keepold and $incremental case
+        
+        # Ping to see if corename exists, if it does, reload, else create
+        if ($solr_server->admin_ping_core($corename)) {
+            $solr_server->admin_reload_core($corename); 
+        } else {
+            $solr_server->admin_create_core($corename, $index_dir);
+        }
         }
     }