gistfile1.diff

commit 1f44e0b6df61729b4fdc7be6fc4ec145bb89a8b9
Author: Logan Johnson <ljohnson@mobilizationlabs.com>
Date:   Thu Aug 19 16:11:30 2010 -0400

    choose root based on host for each request

diff --git a/tim-session-common/src/main/java/com/terracotta/session/SessionFilter.java b/tim-session-common/src/main/java/com/terracotta/session/SessionFilter.java
index 6d4f3b4..523945a 100644
--- a/tim-session-common/src/main/java/com/terracotta/session/SessionFilter.java
+++ b/tim-session-common/src/main/java/com/terracotta/session/SessionFilter.java
@@ -17,6 +17,8 @@ import com.terracotta.session.util.SessionCookieWriter;
 import com.terracotta.session.util.SessionIdGenerator;
 
 import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
 
 import javax.servlet.Filter;
 import javax.servlet.FilterChain;
@@ -32,7 +34,7 @@ public class SessionFilter implements Filter {
   public final static String REQUEST_RESPONSE_FACTORY_KEY = SessionFilter.class.getName()
                                                             + ".REQUEST_RESPONSE_FACTORY_KEY";
 
-  private SessionManager     mgr                          = null;
+  private Map<String,SessionManager> sessionManagers = new HashMap<String,SessionManager>();
   private ServletContext     servletContext               = null;
   private String             requestResponseFactory       = null;
 
@@ -78,12 +80,15 @@ public class SessionFilter implements Filter {
   }
 
   protected synchronized SessionManager getManager(HttpServletRequest req) {
+    String host = getHost(req);
+    SessionManager mgr = sessionManagers.get(host);
     if (mgr == null) {
       if (servletContext instanceof WebAppConfig) {
         mgr = createWebAppConfigManager(req, (WebAppConfig) servletContext, servletContext);
       } else {
         mgr = createDefaultManager(req, servletContext);
       }
+      sessionManagers.put(host, mgr);
     }
     Assert.post(mgr != null);
     return mgr;
@@ -111,17 +116,7 @@ public class SessionFilter implements Filter {
     final SessionCookieWriter scw = DefaultCookieWriter.makeInstance(cp);
     final LifecycleEventMgr eventMgr = DefaultLifecycleEventMgr.makeInstance(cp);
 
-    String host = req.getHeader("Host");
-    if (host != null) {
-      host = host.trim();
-
-      int colon = host.lastIndexOf(':');
-      if (colon >= 0) {
-        host = host.substring(0, colon);
-      }
-    }
-    if (host == null || host.length() == 0) { throw new RuntimeException("Request is missing \"Host\" header"); }
-
+    String host = getHost(req);
     final ContextMgr contextMgr = DefaultContextMgr.makeInstance(req, sc, host);
     final SessionManager rv = new TerracottaSessionManager(sig, scw, eventMgr, contextMgr, factory, cp);
     return rv;
@@ -138,4 +133,19 @@ public class SessionFilter implements Filter {
       throw new AssertionError(e);
     }
   }
+
+    private String getHost(HttpServletRequest req) {
+        String host = req.getHeader("Host");
+        if (host != null) {
+        host = host.trim();
+
+        int colon = host.lastIndexOf(':');
+        if (colon >= 0) {
+          host = host.substring(0, colon);
+        }
+        }
+        if (host == null || host.length() == 0) { throw new RuntimeException("Request is missing \"Host\" header"); }
+        return host;
+    }
+
 }