Store the default order values of security filters.

core/src/main/java/org/springframework/security/ui/FilterChainOrderUtils.java

@@ -0,0 +1,34 @@
+package org.springframework.security.ui;
+
+import org.springframework.core.Ordered;
+
+/**
+ * Stores the default order numbers of all Spring Security filters for use in configuration.
+ *
+ * @author luke
+ * @version $Id$
+ */
+public class FilterChainOrderUtils {
+    /**
+     * The first position at which a Spring Security filter will be found. Any filter with an order less than this will
+     * be guaranteed to be placed before the Spring Security filters in the stack.
+     */
+    public static final int FILTER_CHAIN_FIRST = Ordered.HIGHEST_PRECEDENCE + 1000;
+    private static final int INTERVAL = 100;
+
+    public static final int CHANNEL_PROCESSING_FILTER_ORDER            = FILTER_CHAIN_FIRST + INTERVAL;
+    public static final int CONCURRENT_SESSION_FILTER_ORDER            = FILTER_CHAIN_FIRST + INTERVAL * 2;
+    public static final int HTTP_SESSION_CONTEXT_FILTER_ORDER          = FILTER_CHAIN_FIRST + INTERVAL * 3;
+    public static final int LOGOUT_FILTER_ORDER                        = FILTER_CHAIN_FIRST + INTERVAL * 4;
+    public static final int AUTH_PROCESSING_FILTER_ORDER               = FILTER_CHAIN_FIRST + INTERVAL * 5;
+    public static final int CAS_PROCESSING_FILTER_ORDER                = FILTER_CHAIN_FIRST + INTERVAL * 5;
+    public static final int LOGIN_PAGE_FILTER_ORDER                    = FILTER_CHAIN_FIRST + INTERVAL * 6;
+    public static final int BASIC_PROCESSING_FILTER_ORDER              = FILTER_CHAIN_FIRST + INTERVAL * 7;
+    public static final int SECURITY_CONTEXT_HOLDER_AWARE_FILTER_ORDER = FILTER_CHAIN_FIRST + INTERVAL * 8;
+    public static final int REMEMBER_ME_FILTER_ORDER                   = FILTER_CHAIN_FIRST + INTERVAL * 9;
+    public static final int ANON_PROCESSING_FILTER_ORDER               = FILTER_CHAIN_FIRST + INTERVAL * 10;
+    public static final int SWITCH_USER_FILTER_ORDER                   = FILTER_CHAIN_FIRST + INTERVAL * 11;
+    public static final int EXCEPTION_TRANSLATION_FILTER_ORDER         = FILTER_CHAIN_FIRST + INTERVAL * 12;
+    public static final int FILTER_SECURITY_INTERCEPTOR_ORDER          = FILTER_CHAIN_FIRST + INTERVAL * 13;
+
+}