VIVO-873 Adapt the client code to the new interface.

Create a bridge implementation of SearchIndexerImpl that just wraps around an old IndexBuilder.

Modify client code:
Application, BasicAuthenticator, SearchServiceController, SparqlUpdateApiController,
UpdateUrisInIndex and VClassGroupCache

Rewrite IndexController to use AJAX and to show the current status and history of the indexer events.

webapp/web/templates/freemarker/body/admin/searchIndex.ftl

@@ -1,43 +1,21 @@
 <#-- $This file is distributed under the terms of the license in /doc/license.txt$ -->
 
 <#-- 
-    Template for the page that controls the updating or rebuilding of the Search Index. 
+    Template for the page that displays the status of the Search Indexer.
+    Most of it is provided by the AJAX call. 
 -->
 
 <h2>${i18n().search_index_status}</h2>
 
-<#if !indexIsConnected>
-    <!-- Can't contact the search engine. Indexing would be impossible. Show an error message. -->
-    <section id="error-alert" role="alert">
-        <img src="${urls.images}/iconAlert.png" width="24" height="24" alt="Error alert icon" />
-        <p>${i18n().search_index_not_connected}</p>
-        <p><tt>SearchEngine.ping()</tt> ${i18n().failed}.
-        <p>${i18n().check_startup_status}</p>
-    </section>
-    
-<#elseif worklevel == "IDLE">
-    <!-- Search indexer is idle. Show the button that rebuilds the index. -->
-    <h3>${i18n().search_indexer_idle}</h3>
-    <#if hasPreviousBuild??>
-        <p>${i18n().most_recent_update} ${since?string("hh:mm:ss a, MMMM dd, yyyy")}</p>
-    </#if>
-    
-    <form action="${actionUrl}" method="POST">
-        <p>
-            <input class="submit" type="submit" name="rebuild" value="${i18n().rebuild_button}" role="button" />
-            ${i18n().reset_search_index}
-        </p>
-    </form>
-    
-<#elseif totalToDo == 0>
-    <!-- Search indexer is preparing the list of records. Show elapsed time since request. -->
-    <h3>${i18n().preparing_to_rebuild_index}</h3>
-    <p>${i18n().since_elapsed_time(since?string("hh:mm:ss a, MMMM dd, yyyy"),elapsed)}</p>
-    
-<#else>
-    <!-- Search indexer is re-building the index. Show the progress. -->
-    <h3>${i18n().current_task(currentTask)}</h3>
-    <p>${i18n().since_elapsed_time_est_total(since?string("hh:mm:ss a, MMMM dd, yyyy"),elapsed,expected)}</p>
-    <p>${i18n().index_recs_completed(completedCount,totalToDo)}</p>
-    
-</#if>
+<div id="searchIndexerStatus">
+	Search Indexer Status
+</div>
+
+<script>
+    searchIndexerStatusUrl = '${statusUrl}'
+</script>
+
+${stylesheets.add('<link rel="stylesheet" href="${urls.base}/css/search/searchIndex.css" />')}
+
+${scripts.add('<script type="text/javascript" src="${urls.base}/js/search/searchIndex.js"></script>')}   
+${scripts.add('<script type="text/javascript" src="${urls.base}/js/jquery-ui/js/jquery-ui-1.8.9.custom.min.js"></script>')}   

webapp/web/templates/freemarker/body/admin/searchIndexStatus.ftl

@@ -0,0 +1,72 @@
+<#-- $This file is distributed under the terms of the license in /doc/license.txt$ -->
+
+<#-- 
+    Template for the page that controls the updating or rebuilding of the Search Index. 
+-->
+
+<section id="indexer" role="region">
+    <#if status.statusType == "IDLE">
+        <h3>The search indexer has been idle since ${status.since?datetime}</h3>
+
+    <#elseif status.statusType = "PROCESSING_URIS">
+        <h3>The search indexer has been processing URIs since ${status.since?datetime}</h3>
+        <p><@showIndexerCounts "URI_COUNTS", status /></p>
+        <p><@showElapsedTime status.elapsed /> Expected completion ${status.expectedCompletion?datetime}.</p>
+
+    <#elseif status.statusType = "PROCESSING_STMTS">
+        <h3>The search indexer has been processing changed statements since ${status.since?datetime}</h3>
+        <p><@showIndexerCounts "STATEMENT_COUNTS", status /></p>
+        <p><@showElapsedTime status.elapsed /> Expected completion ${status.expectedCompletion?datetime}.</p>
+
+    <#elseif status.statusType = "PREPARING_REBUILD">
+        <h3>The search indexer has been preparing to rebuild the index since ${status.since?datetime}</h3>
+
+    <#else>
+        <h3>The search indexer status is: ${status.statusType}
+    </#if>
+    
+    
+    <form action="${rebuildUrl}" method="POST">
+        <p>
+            <#if status.statusType == "IDLE">
+                <input class="submit" type="submit" name="rebuild" value="${i18n().rebuild_button}" role="button" />
+                ${i18n().reset_search_index}
+            </#if>
+        </p>
+    </form>
+
+
+    <h3>History</h3>
+    <table class="history">
+        <tr> <th>Event</th> <th>Status</th> <th>Since</th> <th>Counts</th> </tr>
+        <#list history as ie>
+           <@showIndexerEvent ie />
+        </#list>
+    </table>
+</section>
+
+
+<#macro showElapsedTime elapsed>
+    Elapsed time ${elapsed[0]}:${elapsed[1]}:${elapsed[2]}.
+</#macro>
+
+
+<#macro showIndexerEvent event>
+    <tr>
+        <td>${event.event}</td>
+        <td>${event.statusType}</td>
+        <td>${event.since?datetime}</td>
+        <td><@showIndexerCounts event.countsType, event /></td>
+    </tr>
+</#macro>
+
+
+<#macro showIndexerCounts countsType, counts>
+   <#if countsType == "URI_COUNTS">
+       Updated: ${counts.updated}, deleted: ${counts.deleted}, remaining: ${counts.remaining}, total: ${counts.total}
+   <#elseif countsType == "STATEMENT_COUNTS">
+       Processed: ${counts.processed}, remaining: ${counts.remaining}, total: ${counts.total}
+   <#elseif countsType == "REBUILD_COUNTS">
+       Number of individuals before rebuild: ${counts.numberOfIndividuals}
+   </#if>
+</#macro>