Author: kkolinko
Date: Thu Nov 10 08:53:39 2011
New Revision: 1200224

URL: http://svn.apache.org/viewvc?rev=1200224&view=rev
Log:
Merged revision 1200089 from tomcat/trunk:
Refactor special attribute names handling,
to use hash table lookup + adapter class, instead of series of name.equals() 
tests.
Extracted add/change/remove notification delivery into separate methods.

Modified:
    tomcat/tc7.0.x/trunk/   (props changed)
    tomcat/tc7.0.x/trunk/java/org/apache/catalina/connector/Request.java
    tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml

Propchange: tomcat/tc7.0.x/trunk/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Thu Nov 10 08:53:39 2011
@@ -1 +1 @@
-/tomcat/trunk:1156115,1156171,1156276,1156304,1156519,1156530,1156602,1157015,1157018,1157151,1157198,1157204,1157810,1157832,1157834,1157847,1157908,1157939,1158155,1158160,1158176,1158195,1158198-1158199,1158227,1158331,1158334-1158335,1158426,1160347,1160592,1160611,1160619,1160626,1160639,1160652,1160720-1160721,1160772,1160774,1160776,1161303,1161310,1161322,1161339,1161486,1161540,1161549,1161584,1162082,1162149,1162169,1162721,1162769,1162836,1162932,1163630,1164419,1164438,1164469,1164480,1164567,1165234,1165247-1165248,1165253,1165273,1165282,1165309,1165331,1165338,1165347,1165360-1165361,1165367-1165368,1165602,1165608,1165677,1165693,1165721,1165723,1165728,1165730,1165738,1165746,1165765,1165777,1165918,1165921,1166077,1166150-1166151,1166290,1166366,1166620,1166686,1166693,1166752,1166757,1167368,1167394,1169447,1170647,1171692,1172233-1172234,1172236,1172269,1172278,1172282,1172556,1172610,1172664,1172689,1172711,1173020-1173021,1173082,1173088,1173090,1173096
 
,1173241,1173256,1173288,1173333,1173342,1173461,1173614,1173630,1173659,1173722,1174061,1174239,1174322,1174325,1174329-1174330,1174337-1174339,1174343,1174353,1174799,1174882,1174884,1174983,1175155,1175158,1175167,1175182,1175190,1175201,1175272,1175275,1175283,1175582,1175589-1175590,1175594,1175602,1175613,1175633,1175690,1175713,1175798,1175889,1175896,1175907,1176584,1176590,1176799,1177050,1177060,1177125,1177152,1177160,1177245,1177850,1177862,1177978,1178209,1178228,1178233,1178449,1178542,1178681,1178684,1178721,1179268,1179274,1180261,1180865,1180891,1180894,1180907,1181028,1181123,1181125,1181136,1181291,1181743,1182796,1183078,1183105,1183142,1183328,1183339-1183340,1183492-1183494,1183605,1184917,1184919,1185018,1185020,1185200,1185588,1185626,1185756,1185758,1186011,1186042-1186045,1186104,1186123,1186137,1186153,1186254,1186257,1186377-1186379,1186479-1186480,1186712,1186743,1186750,1186763,1186890-1186892,1186894,1186949,1187018,1187027-1187028,1187381,1187
 
753,1187755,1187775,1187801,1187806,1187809,1187827,1188301,1188303-1188305,1188399,1188822,1188930-1188931,1189116,1189129,1189183,1189240,1189256,1189386,1189413-1189414,1189477,1189685,1189805,1189857,1189864,1189882,1190034,1190185,1190279,1190339,1190371,1190388-1190389,1190474,1190481,1194915,1195222-1195223,1195531,1195899,1195905,1195943,1195949,1195953,1195955,1195965,1195968,1196175,1196212,1196223,1196304-1196305,1196735,1196825,1196827,1197158,1197261,1197263,1197299-1197300,1197305,1197339-1197340,1197343,1197382,1197386-1197387,1197480,1197578,1198497,1198528,1198552,1198602,1198604,1198607,1198622,1198640,1198696,1198707,1199418,1199432,1199436,1199513,1199529,1199980,1199996,1200056,1200106-1200107
+/tomcat/trunk:1156115,1156171,1156276,1156304,1156519,1156530,1156602,1157015,1157018,1157151,1157198,1157204,1157810,1157832,1157834,1157847,1157908,1157939,1158155,1158160,1158176,1158195,1158198-1158199,1158227,1158331,1158334-1158335,1158426,1160347,1160592,1160611,1160619,1160626,1160639,1160652,1160720-1160721,1160772,1160774,1160776,1161303,1161310,1161322,1161339,1161486,1161540,1161549,1161584,1162082,1162149,1162169,1162721,1162769,1162836,1162932,1163630,1164419,1164438,1164469,1164480,1164567,1165234,1165247-1165248,1165253,1165273,1165282,1165309,1165331,1165338,1165347,1165360-1165361,1165367-1165368,1165602,1165608,1165677,1165693,1165721,1165723,1165728,1165730,1165738,1165746,1165765,1165777,1165918,1165921,1166077,1166150-1166151,1166290,1166366,1166620,1166686,1166693,1166752,1166757,1167368,1167394,1169447,1170647,1171692,1172233-1172234,1172236,1172269,1172278,1172282,1172556,1172610,1172664,1172689,1172711,1173020-1173021,1173082,1173088,1173090,1173096
 
,1173241,1173256,1173288,1173333,1173342,1173461,1173614,1173630,1173659,1173722,1174061,1174239,1174322,1174325,1174329-1174330,1174337-1174339,1174343,1174353,1174799,1174882,1174884,1174983,1175155,1175158,1175167,1175182,1175190,1175201,1175272,1175275,1175283,1175582,1175589-1175590,1175594,1175602,1175613,1175633,1175690,1175713,1175798,1175889,1175896,1175907,1176584,1176590,1176799,1177050,1177060,1177125,1177152,1177160,1177245,1177850,1177862,1177978,1178209,1178228,1178233,1178449,1178542,1178681,1178684,1178721,1179268,1179274,1180261,1180865,1180891,1180894,1180907,1181028,1181123,1181125,1181136,1181291,1181743,1182796,1183078,1183105,1183142,1183328,1183339-1183340,1183492-1183494,1183605,1184917,1184919,1185018,1185020,1185200,1185588,1185626,1185756,1185758,1186011,1186042-1186045,1186104,1186123,1186137,1186153,1186254,1186257,1186377-1186379,1186479-1186480,1186712,1186743,1186750,1186763,1186890-1186892,1186894,1186949,1187018,1187027-1187028,1187381,1187
 
753,1187755,1187775,1187801,1187806,1187809,1187827,1188301,1188303-1188305,1188399,1188822,1188930-1188931,1189116,1189129,1189183,1189240,1189256,1189386,1189413-1189414,1189477,1189685,1189805,1189857,1189864,1189882,1190034,1190185,1190279,1190339,1190371,1190388-1190389,1190474,1190481,1194915,1195222-1195223,1195531,1195899,1195905,1195943,1195949,1195953,1195955,1195965,1195968,1196175,1196212,1196223,1196304-1196305,1196735,1196825,1196827,1197158,1197261,1197263,1197299-1197300,1197305,1197339-1197340,1197343,1197382,1197386-1197387,1197480,1197578,1198497,1198528,1198552,1198602,1198604,1198607,1198622,1198640,1198696,1198707,1199418,1199432,1199436,1199513,1199529,1199980,1199996,1200056,1200089,1200106-1200107

Modified: tomcat/tc7.0.x/trunk/java/org/apache/catalina/connector/Request.java
URL: 
http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/java/org/apache/catalina/connector/Request.java?rev=1200224&r1=1200223&r2=1200224&view=diff
==============================================================================
--- tomcat/tc7.0.x/trunk/java/org/apache/catalina/connector/Request.java 
(original)
+++ tomcat/tc7.0.x/trunk/java/org/apache/catalina/connector/Request.java Thu 
Nov 10 08:53:39 2011
@@ -926,32 +926,10 @@ public class Request
     @Override
     public Object getAttribute(String name) {
 
-        if (name.equals(Globals.DISPATCHER_TYPE_ATTR)) {
-            return (internalDispatcherType == null)
-                ? DispatcherType.REQUEST
-                : internalDispatcherType;
-        } else if (name.equals(Globals.DISPATCHER_REQUEST_PATH_ATTR)) {
-            return (requestDispatcherPath == null)
-                ? getRequestPathMB().toString()
-                : requestDispatcherPath.toString();
-        }
-
-        if (name.equals(Globals.ASYNC_SUPPORTED_ATTR)) {
-            return asyncSupported;
-        }
-
-        if (name.equals(Globals.GSS_CREDENTIAL_ATTR)) {
-            if (userPrincipal instanceof GenericPrincipal) {
-                return ((GenericPrincipal) userPrincipal).getGssCredential();
-            }
-            return null;
-        }
-
-        if (name.equals(Globals.PARAMETER_PARSE_FAILED_ATTR)) {
-            if (coyoteRequest.getParameters().isParseFailed()) {
-                return Boolean.TRUE;
-            }
-            return null;
+        // Special attributes
+        SpecialAttributeAdapter adapter = specialAttributes.get(name);
+        if (adapter != null) {
+            return adapter.get(this, name);
         }
 
         Object attr=attributes.get(name);
@@ -1475,9 +1453,6 @@ public class Request
      */
     @Override
     public void removeAttribute(String name) {
-        Object value = null;
-        boolean found = false;
-
         // Remove the specified attribute
         // Check for read only attribute
         // requests are per thread so synchronization unnecessary
@@ -1490,37 +1465,16 @@ public class Request
             coyoteRequest.getAttributes().remove(name);
         }
 
-        found = attributes.containsKey(name);
+        boolean found = attributes.containsKey(name);
         if (found) {
-            value = attributes.get(name);
+            Object value = attributes.get(name);
             attributes.remove(name);
-        } else {
-            return;
-        }
 
-        // Notify interested application event listeners
-        Object listeners[] = context.getApplicationEventListeners();
-        if ((listeners == null) || (listeners.length == 0)) {
+            // Notify interested application event listeners
+            notifyAttributeRemoved(name, value);
+        } else {
             return;
         }
-        ServletRequestAttributeEvent event =
-          new ServletRequestAttributeEvent(context.getServletContext(),
-                                           getRequest(), name, value);
-        for (int i = 0; i < listeners.length; i++) {
-            if (!(listeners[i] instanceof ServletRequestAttributeListener)) {
-                continue;
-            }
-            ServletRequestAttributeListener listener =
-                (ServletRequestAttributeListener) listeners[i];
-            try {
-                listener.attributeRemoved(event);
-            } catch (Throwable t) {
-                ExceptionUtils.handleThrowable(t);
-                
context.getLogger().error(sm.getString("coyoteRequest.attributeEvent"), t);
-                // Error valve will pick this exception up and display it to 
user
-                attributes.put(RequestDispatcher.ERROR_EXCEPTION, t);
-            }
-        }
     }
 
 
@@ -1545,21 +1499,13 @@ public class Request
             return;
         }
 
-        if (name.equals(Globals.DISPATCHER_TYPE_ATTR)) {
-            internalDispatcherType = (DispatcherType)value;
-            return;
-        } else if (name.equals(Globals.DISPATCHER_REQUEST_PATH_ATTR)) {
-            requestDispatcherPath = value;
+        // Special attributes
+        SpecialAttributeAdapter adapter = specialAttributes.get(name);
+        if (adapter != null) {
+            adapter.set(this, name, value);
             return;
         }
 
-        if (name.equals(Globals.ASYNC_SUPPORTED_ATTR)) {
-            this.asyncSupported = (Boolean)value;
-        }
-
-        Object oldValue = null;
-        boolean replaced = false;
-
         // Add or replace the specified attribute
         // Check for read only attribute
         // requests are per thread so synchronization unnecessary
@@ -1587,10 +1533,7 @@ public class Request
             value = canonicalPath;
         }
 
-        oldValue = attributes.put(name, value);
-        if (oldValue != null) {
-            replaced = true;
-        }
+        Object oldValue = attributes.put(name, value);
 
         // Pass special attributes to the native layer
         if (name.startsWith("org.apache.tomcat.")) {
@@ -1598,19 +1541,27 @@ public class Request
         }
 
         // Notify interested application event listeners
+        notifyAttributeAssigned(name, value, oldValue);
+    }
+
+
+    /**
+     * Notify interested listeners that attribute has been assigned a value.
+     */
+    private void notifyAttributeAssigned(String name, Object value,
+            Object oldValue) {
         Object listeners[] = context.getApplicationEventListeners();
         if ((listeners == null) || (listeners.length == 0)) {
             return;
         }
+        boolean replaced = (oldValue != null);
         ServletRequestAttributeEvent event = null;
         if (replaced) {
-            event =
-                new ServletRequestAttributeEvent(context.getServletContext(),
-                                                 getRequest(), name, oldValue);
+            event = new ServletRequestAttributeEvent(
+                    context.getServletContext(), getRequest(), name, oldValue);
         } else {
-            event =
-                new ServletRequestAttributeEvent(context.getServletContext(),
-                                                 getRequest(), name, value);
+            event = new ServletRequestAttributeEvent(
+                    context.getServletContext(), getRequest(), name, value);
         }
 
         for (int i = 0; i < listeners.length; i++) {
@@ -1629,7 +1580,36 @@ public class Request
                 ExceptionUtils.handleThrowable(t);
                 
context.getLogger().error(sm.getString("coyoteRequest.attributeEvent"), t);
                 // Error valve will pick this exception up and display it to 
user
-                attributes.put(RequestDispatcher.ERROR_EXCEPTION, t );
+                attributes.put(RequestDispatcher.ERROR_EXCEPTION, t);
+            }
+        }
+    }
+
+
+    /**
+     * Notify interested listeners that attribute has been removed.
+     */
+    private void notifyAttributeRemoved(String name, Object value) {
+        Object listeners[] = context.getApplicationEventListeners();
+        if ((listeners == null) || (listeners.length == 0)) {
+            return;
+        }
+        ServletRequestAttributeEvent event =
+          new ServletRequestAttributeEvent(context.getServletContext(),
+                                           getRequest(), name, value);
+        for (int i = 0; i < listeners.length; i++) {
+            if (!(listeners[i] instanceof ServletRequestAttributeListener)) {
+                continue;
+            }
+            ServletRequestAttributeListener listener =
+                (ServletRequestAttributeListener) listeners[i];
+            try {
+                listener.attributeRemoved(event);
+            } catch (Throwable t) {
+                ExceptionUtils.handleThrowable(t);
+                
context.getLogger().error(sm.getString("coyoteRequest.attributeEvent"), t);
+                // Error valve will pick this exception up and display it to 
user
+                attributes.put(RequestDispatcher.ERROR_EXCEPTION, t);
             }
         }
     }
@@ -3305,4 +3285,94 @@ public class Request
         return true;
     }
 
+
+    // ----------------------------------------------------- Special 
attributes handling
+
+    private static interface SpecialAttributeAdapter {
+        Object get(Request request, String name);
+
+        void set(Request request, String name, Object value);
+
+        // None of special attributes support removal
+        // void remove(Request request, String name);
+    }
+
+    private static final Map<String, SpecialAttributeAdapter> specialAttributes
+        = new HashMap<String, SpecialAttributeAdapter>();
+
+    static {
+        specialAttributes.put(Globals.DISPATCHER_TYPE_ATTR,
+                new SpecialAttributeAdapter() {
+                    @Override
+                    public Object get(Request request, String name) {
+                        return (request.internalDispatcherType == null) ? 
DispatcherType.REQUEST
+                                : request.internalDispatcherType;
+                    }
+
+                    @Override
+                    public void set(Request request, String name, Object 
value) {
+                        request.internalDispatcherType = (DispatcherType) 
value;
+                    }
+                });
+        specialAttributes.put(Globals.DISPATCHER_REQUEST_PATH_ATTR,
+                new SpecialAttributeAdapter() {
+                    @Override
+                    public Object get(Request request, String name) {
+                        return (request.requestDispatcherPath == null) ? 
request
+                                .getRequestPathMB().toString()
+                                : request.requestDispatcherPath.toString();
+                    }
+
+                    @Override
+                    public void set(Request request, String name, Object 
value) {
+                        request.requestDispatcherPath = value;
+                    }
+                });
+        specialAttributes.put(Globals.ASYNC_SUPPORTED_ATTR,
+                new SpecialAttributeAdapter() {
+                    @Override
+                    public Object get(Request request, String name) {
+                        return request.asyncSupported;
+                    }
+
+                    @Override
+                    public void set(Request request, String name, Object 
value) {
+                        Boolean oldValue = request.asyncSupported;
+                        request.asyncSupported = (Boolean)value;
+                        request.notifyAttributeAssigned(name, value, oldValue);
+                    }
+                });
+        specialAttributes.put(Globals.GSS_CREDENTIAL_ATTR,
+                new SpecialAttributeAdapter() {
+                    @Override
+                    public Object get(Request request, String name) {
+                        if (request.userPrincipal instanceof GenericPrincipal) 
{
+                            return ((GenericPrincipal) request.userPrincipal)
+                                    .getGssCredential();
+                        }
+                        return null;
+                    }
+
+                    @Override
+                    public void set(Request request, String name, Object 
value) {
+                        // NO-OP
+                    }
+                });
+        specialAttributes.put(Globals.PARAMETER_PARSE_FAILED_ATTR,
+                new SpecialAttributeAdapter() {
+                    @Override
+                    public Object get(Request request, String name) {
+                        if (request.getCoyoteRequest().getParameters()
+                                .isParseFailed()) {
+                            return Boolean.TRUE;
+                        }
+                        return null;
+                    }
+
+                    @Override
+                    public void set(Request request, String name, Object 
value) {
+                        // NO-OP
+                    }
+                });
+    }
 }

Modified: tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml
URL: 
http://svn.apache.org/viewvc/tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml?rev=1200224&r1=1200223&r2=1200224&view=diff
==============================================================================
--- tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/tc7.0.x/trunk/webapps/docs/changelog.xml Thu Nov 10 08:53:39 2011
@@ -200,6 +200,10 @@
         New filter <code>FailedRequestFilter</code> that will reject a request
         if there were errors during HTTP parameter parsing. (kkolinko)
       </add>
+      <update>
+        Improve special attributes handling in Request object by using hash
+        table lookup instead of series of string comparisons. (kkolinko)
+      </update>
     </changelog>
   </subsection>
   <subsection name="Coyote">



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