exclude template URIs

pom.xml

@@ -4,7 +4,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.appng</groupId>
 	<artifactId>appng-tomcat-session</artifactId>
-	<version>0.2.4-SNAPSHOT</version>
+	<version>0.3.0-SNAPSHOT</version>
 	<description>appNG Tomcat Session</description>
 	<build>
 		<plugins>

src/main/java/org/appng/tomcat/session/hazelcast/v2/HazelcastSessionTrackerValve.java

@@ -16,45 +16,68 @@
 package org.appng.tomcat.session.hazelcast.v2;
 
 import java.io.IOException;
+import java.util.regex.Pattern;
+import java.util.regex.PatternSyntaxException;
 
 import javax.servlet.ServletException;
 
 import org.apache.catalina.Session;
 import org.apache.catalina.Valve;
 import org.apache.catalina.connector.Request;
 import org.apache.catalina.connector.Response;
-import org.apache.catalina.valves.PersistentValve;
+import org.apache.catalina.valves.ValveBase;
 import org.apache.juli.logging.Log;
 import org.appng.tomcat.session.Utils;
 
 /**
  * A {@link Valve} that uses {@link HazelcastManager} to store a {@link Session}
  */
-public class HazelcastSessionTrackerValve extends PersistentValve {
+public class HazelcastSessionTrackerValve extends ValveBase {
 
 	private final Log log = Utils.getLog(HazelcastSessionTrackerValve.class);
 
+	protected Pattern filter = Pattern.compile("^/template/.*$");
+
 	@Override
 	public void invoke(Request request, Response response) throws IOException, ServletException {
+		if (isRequestWithoutSession(request.getDecodedRequestURI())) {
+			getNext().invoke(request, response);
+			return;
+		}
+
+		long start = System.currentTimeMillis();
 		try {
 			getNext().invoke(request, response);
 		} finally {
-			long start = System.currentTimeMillis();
 			HazelcastManager manager = (HazelcastManager) request.getContext().getManager();
 			Session session = request.getSessionInternal(false);
 			if (session != null) {
-				if (session.isValid()) {
-					log.trace(String.format("Request with session completed, saving session %s", session.getId()));
-					manager.commit(session);
-				} else {
-					log.trace(String.format("HTTP Session has been invalidated, removing %s", session.getId()));
-					manager.remove(session);
-				}
+				manager.commit(session);
 			}
-
 			long duration = System.currentTimeMillis() - start;
 			if (log.isDebugEnabled() && duration > 0) {
-				log.debug(String.format("handling session for %s took %sms", request.getServletPath(), duration));
+				log.debug(String.format("handling session %s for %s took %dms", session.getId(),
+						request.getServletPath(), duration));
+			}
+		}
+	}
+
+	protected boolean isRequestWithoutSession(String uri) {
+		return filter != null && filter.matcher(uri).matches();
+	}
+
+	public String getFilter() {
+		return null == filter ? null : filter.toString();
+	}
+
+	public void setFilter(String filter) {
+		if (filter == null || filter.length() == 0) {
+			this.filter = null;
+		} else {
+			try {
+				this.filter = Pattern.compile(filter);
+			} catch (PatternSyntaxException pse) {
+				log.error("ivalid pattern", pse);
 			}
 		}
 	}