TUSCANY-3742: Fix time comparison for If-Modified-Since and If-Unmodified-Since (merged 1.x commit r1027658)

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1027684 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 11 insertions, 3 deletions

diff --git a/sca-java-2.x/trunk/modules/binding-atom-runtime/src/main/java/org/apache/tuscany/sca/binding/atom/provider/AtomBindingListenerServlet.java b/sca-java-2.x/trunk/modules/binding-atom-runtime/src/main/java/org/apache/tuscany/sca/binding/atom/provider/AtomBindingListenerServlet.java
index 20fb9309d5..f2ad84bfd5 100644
--- a/sca-java-2.x/trunk/modules/binding-atom-runtime/src/main/java/org/apache/tuscany/sca/binding/atom/provider/AtomBindingListenerServlet.java
+++ b/sca-java-2.x/trunk/modules/binding-atom-runtime/src/main/java/org/apache/tuscany/sca/binding/atom/provider/AtomBindingListenerServlet.java
@@ -279,7 +279,7 @@ class AtomBindingListenerServlet extends HttpServlet {
                     if ( predicate != null ) {
                         try {
                             Date predicateDate = dateFormat.parse( predicate ); 
-                            if ( predicateDate.compareTo( feedUpdated ) < 0 ) {
+                            if ( predicateDate.compareTo( exactSeconds(feedUpdated) ) < 0 ) {
                                 // Match, should short circuit
                                 response.sendError(HttpServletResponse.SC_NOT_MODIFIED);
                                 return;
@@ -292,7 +292,7 @@ class AtomBindingListenerServlet extends HttpServlet {
                     if ( predicate != null ) {
                         try {
                             Date predicateDate = dateFormat.parse( predicate ); 
-                            if ( predicateDate.compareTo( feedUpdated ) > 0 ) {
+                            if ( predicateDate.compareTo( exactSeconds(feedUpdated) ) >= 0 ) {
                                 // Match, should short circuit
                                 response.sendError(HttpServletResponse.SC_NOT_MODIFIED);
                                 return;
@@ -891,5 +891,13 @@ class AtomBindingListenerServlet extends HttpServlet {
         }
     }
 
-    
+    /**
+     * Round a date down to an exact number of seconds
+     * @param date with millisecond precision
+     * @return date rounded down to nearest second
+     */
+    private Date exactSeconds(Date date) {
+        return new Date(date.getTime() / 1000 * 1000);
+    }
+
 }