made feedback button url configurable

Author: FreakyBytes

resources/CombineArchiveWeb-dummyContext.xml

@@ -12,7 +12,11 @@
 	<Parameter name="STORAGE" value="/tmp/CombineArchiveWeb" override="false" />
 	<!-- URL to the SedML WebTools to enable the simulate Link, leave blank to disable -->
 	<Parameter name="SEDML_WEBTOOLS" value="http://bqfbergmann.dyndns.org/SED-ML_Web_Tools/Home/SimulateUrl?url=" override="false" />
-	
+	<!-- max age for stats data in seconds-->
+	<Parameter name="MAX_STATS_AGE" value="10" override="false" />
+	<!-- Feedback Button URL, set to empty value to disable button -->
+<!-- 	<Parameter name="FEEDBACK_URL" value="https://sems.uni-rostock.de/trac/combinearchive-web/newticket?from=WEBCAT-INTERFACE" override="false" /> -->
+
 	<!-- Quotas -->
 
 	<!-- Maximum size in bytes of all workspaces together. 0 means unlimited -->

src/main/java/de/unirostock/sems/cbarchive/web/Fields.java

@@ -78,6 +78,9 @@ public class Fields {
 
 	/** max time for caching statistic data */
 	public static long MAX_STATS_AGE = 180;
+	
+	/** Link to a feedback form */
+	public static String FEEDBACK_URL = "https://sems.uni-rostock.de/trac/combinearchive-web/newticket?from=WEBCAT-INTERFACE";
 
 	// ------------------------------------------------------------------------
 	// Quotas
@@ -151,6 +154,15 @@ else if (desiredLogLevel.equals ("NONE"))
 		// max stats age
 		MAX_STATS_AGE = parseLong( context.getInitParameter("MAX_STATS_AGE"), MAX_STATS_AGE );
 
+		// feedback Url
+		String feedbackUrl = context.getInitParameter("FEEDBACK_URL");
+		if( feedbackUrl != null && feedbackUrl.isEmpty() == true )
+			// disable feedback button
+			Fields.FEEDBACK_URL = null;
+		else if( feedbackUrl != null && feedbackUrl.isEmpty() == false )
+			// set another URL
+			Fields.FEEDBACK_URL = feedbackUrl;
+		
 		// Quotas
 
 		QUOTA_TOTAL_SIZE		= parseQuotaFromString( context.getInitParameter("QUOTA_TOTAL_SIZE") );

src/main/webapp/WEB-INF/Index.jsp

@@ -62,9 +62,11 @@
 		Internet Explorer. Since we're fighting for open systems and
 		reproducibility we're unwilling to buy and install proprietary
 		software that is nothing but a big bug.</div>
-	<div id="feedback">
-		<a href="https://sems.uni-rostock.de/trac/combinearchive-web/newticket?from=WEBCAT-INTERFACE" alt="feedback"></a>
-	</div>
+	<% if( Fields.FEEDBACK_URL != null ) { %>
+		<div id="feedback">
+			<a href="<%= Fields.FEEDBACK_URL %>" title="feedback"></a>
+		</div>
+	<% } %>
 	<div id="templates" style="display: none;">
 		<div id="template-navigation">