From 0835932f7090e3860b0df2007b9b5e8f44969423 Mon Sep 17 00:00:00 2001
From: Becky Reamy <rlreamy@umich.edu>
Date: Fri, 31 May 2019 14:47:08 -0400
Subject: [PATCH] This creates a new database monitor page that can be used to
 see what studies have been loaded, db status, rserve status and solr status. 
 Adding a new branch to transmart-data with updates to the
 Config-template.groovy to add monitor page to be visible outside of login.

---
 .../controllers/MonitorController.groovy      | 19 +++++++
 grails-app/services/MonitorService.groovy     | 51 +++++++++++++++++++
 .../status/RserveStatus.groovy                | 12 ++++-
 .../status/SolrStatus.groovy                  | 13 +++++
 4 files changed, 93 insertions(+), 2 deletions(-)
 create mode 100644 grails-app/controllers/MonitorController.groovy
 create mode 100644 grails-app/services/MonitorService.groovy

diff --git a/grails-app/controllers/MonitorController.groovy b/grails-app/controllers/MonitorController.groovy
new file mode 100644
index 000000000..62120c03e
--- /dev/null
+++ b/grails-app/controllers/MonitorController.groovy
@@ -0,0 +1,19 @@
+class MonitorController {
+
+     def monitorService
+
+     def index =  {
+        def dbStatusText = ""
+        def otherStatusText = monitorService.otherStatusText
+
+         try {
+            dbStatusText = monitorService.getDatabaseStatusText(false, "")
+        } catch (e) {
+            dbStatusText = monitorService.getDatabaseStatusText(true, e.getMessage())
+        }
+
+         render(text: dbStatusText + otherStatusText)
+
+     }
+
+ }
diff --git a/grails-app/services/MonitorService.groovy b/grails-app/services/MonitorService.groovy
new file mode 100644
index 000000000..c4965ef55
--- /dev/null
+++ b/grails-app/services/MonitorService.groovy
@@ -0,0 +1,51 @@
+import groovy.sql.Sql
+
+ class MonitorService {
+
+    def grailsApplication
+    def dataSource
+    def rserveStatusService
+    def solrStatusService
+
+     def getObservationCount() {
+        Sql sql = new Sql(dataSource)
+        String sqlText = "SELECT COUNT(*) FROM i2b2demodata.observation_fact"
+        def result = sql.firstRow(sqlText)
+        return result.values()[0]
+    }
+
+    def getLoadedStudies() {
+        Sql sql = new Sql(dataSource)
+        String sqlText = "SELECT c_name FROM i2b2metadata.i2b2 WHERE c_visualattributes = 'FAS'"
+        return sql.rows(sqlText).collect({ it.getAt(0)}).join(", ")
+    }
+
+     def getAppVersion() {
+        return grailsApplication.metadata['app.version']
+    }
+
+     def getDatabaseStatusText(isDBError, errorMessage) {
+        if (!isDBError) {
+            return "Database Connection Status: " + "OK<br/>" +
+                    "Observation Count: " + observationCount + "<br/>" +
+                    "Loaded Studies: " + loadedStudies + "<br/>" +
+        }
+        else {
+            return "Database Connection Status: " + "ERROR<br/>" +
+                    "Last Database Error Message: " + errorMessage + "<br/>"
+        }
+    }
+
+     def getOtherStatusText() {
+        return  "App Version: " + appVersion + "<br/><br/>" +
+                "RServe Status <br/>" +
+                "-------------------- </br>" +
+                rserveStatusService.status.toHTMLString() + "</br>" +
+                "Solr Status <br/>" +
+                "-------------------- </br>" +
+                solrStatusService.status.toHTMLString()
+    }
+
+
+
+ }
diff --git a/src/groovy/org/transmartfoundation/status/RserveStatus.groovy b/src/groovy/org/transmartfoundation/status/RserveStatus.groovy
index 29f93c562..f134c88e9 100644
--- a/src/groovy/org/transmartfoundation/status/RserveStatus.groovy
+++ b/src/groovy/org/transmartfoundation/status/RserveStatus.groovy
@@ -1,7 +1,5 @@
 package org.transmartfoundation.status
 
-import java.util.Date;
-
 class RserveStatus {
 
     String url
@@ -15,4 +13,14 @@ class RserveStatus {
         return "RserveStatus (" + url + ") - probe at: " + lastProbe
     }
 
+    String toHTMLString () {
+        return 'url: '            + url + "</br>" +
+        'connected: '             + connected + "</br>" +
+        'simpleExpressionOK: '    + simpleExpressionOK + "</br>" +
+        'librariesOk: '           + librariesOk + "</br>" +
+        'lastErrorMessage: '      + lastErrorMessage + "</br>" +
+        'lastProbe: '             + lastProbe + "</br>"
+    }
+
+
 }
diff --git a/src/groovy/org/transmartfoundation/status/SolrStatus.groovy b/src/groovy/org/transmartfoundation/status/SolrStatus.groovy
index 965413f87..2598d1bdf 100644
--- a/src/groovy/org/transmartfoundation/status/SolrStatus.groovy
+++ b/src/groovy/org/transmartfoundation/status/SolrStatus.groovy
@@ -15,4 +15,17 @@ class SolrStatus {
 	String toString () {
 		return "SolrStatus (URL: " + url + ") - probe at: " + lastProbe
 	}
+
+        String toHTMLString () {
+		return  'url: '                   + url + "<br/>" +
+			'connected: '             + connected + "<br/>" +
+			'rwgAvailable: '          + rwgAvailable + "<br/>" +
+			'rwgNumberOfRecords: '    + rwgNumberOfRecords + "<br/>" +
+			'browseAvailable: '       + browseAvailable + "<br/>" +
+			'browseNumberOfRecords: ' + browseNumberOfRecords + "<br/>" +
+			'sampleAvailable: '       + sampleAvailable + "<br/>" +
+			'sampleNumberOfRecords: ' + sampleNumberOfRecords + "<br/>" +
+			'lastProbe: '             + lastProbe  + "<br/>"
+	}
+
 }