boost changes and header fixes

[shibboleth/cpp-opensaml.git] / saml / saml2 / metadata / ObservableMetadataProvider.h

diff --git a/saml/saml2/metadata/ObservableMetadataProvider.h b/saml/saml2/metadata/ObservableMetadataProvider.h
index 7409eb3..2cb0bee 100644 (file)
--- a/saml/saml2/metadata/ObservableMetadataProvider.h
+++ b/saml/saml2/metadata/ObservableMetadataProvider.h
@@ -1,17 +1,21 @@
-/*
- *  Copyright 2001-2007 Internet2
- * 
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+/**
+ * Licensed to the University Corporation for Advanced Internet
+ * Development, Inc. (UCAID) under one or more contributor license
+ * agreements. See the NOTICE file distributed with this work for
+ * additional information regarding copyright ownership.
+ *
+ * UCAID licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the
+ * License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the License.
  */
 
 /**
@@ -25,14 +29,22 @@
 
 #include <saml/saml2/metadata/MetadataProvider.h>
 
+namespace xmltooling {
+    class XMLTOOL_API Mutex;
+};
+
 namespace opensaml {
     
     namespace saml2md {
         
+#if defined (_MSC_VER)
+        #pragma warning( push )
+        #pragma warning( disable : 4251 )
+#endif
         /**
          * A metadata provider that notifies interested parties of changes.
          */
-        class SAML_API ObservableMetadataProvider : public MetadataProvider
+        class SAML_API ObservableMetadataProvider : public virtual MetadataProvider
         {
         protected:
             /**
@@ -40,17 +52,14 @@ namespace opensaml {
              * 
              * @param e DOM to supply configuration for provider
              */
-            ObservableMetadataProvider(const DOMElement* e=NULL) : MetadataProvider(e) {}
+            ObservableMetadataProvider(const xercesc::DOMElement* e=nullptr);
             
             /**
              * Convenience method for notifying every registered Observer of an event.
              */
-            virtual void emitChangeEvent();
+            virtual void emitChangeEvent() const;
 
         public:
-            /**
-             * Destructor will delete any installed filters.
-             */
             virtual ~ObservableMetadataProvider();
             
             /**
@@ -59,9 +68,9 @@ namespace opensaml {
             class SAML_API Observer {
                 MAKE_NONCOPYABLE(Observer);
             protected:
-                Observer() {}
+                Observer();
             public:
-                virtual ~Observer() {}
+                virtual ~Observer();
         
                 /**
                  * Called when a provider signals an event has occured.
@@ -69,7 +78,7 @@ namespace opensaml {
                  * 
                  * @param provider the provider being observed
                  */
-                virtual void onEvent(MetadataProvider& provider)=0;
+                virtual void onEvent(const ObservableMetadataProvider& provider) const=0;
             };
             
             /**
@@ -77,29 +86,25 @@ namespace opensaml {
              * 
              * @param newObserver metadata observer to add
              */
-            virtual void addObserver(Observer* newObserver) {
-                m_observers.push_back(newObserver);
-            }
+            virtual void addObserver(const Observer* newObserver) const;
 
             /**
-             * Removes a metadata observer. The caller must delete the observer if necessary.
+             * Removes a metadata observer.
              * 
              * @param oldObserver metadata observer to remove
              * @return  the old observer
              */
-            virtual Observer* removeObserver(Observer* oldObserver) {
-                for (std::vector<Observer*>::iterator i=m_observers.begin(); i!=m_observers.end(); i++) {
-                    if (oldObserver==(*i)) {
-                        m_observers.erase(i);
-                        return oldObserver;
-                    }
-                }
-                return NULL;
-            }
+            virtual const Observer* removeObserver(const Observer* oldObserver) const;
 
         private:
-            std::vector<Observer*> m_observers;
+            std::auto_ptr<xmltooling::Mutex> m_observerLock;
+            mutable std::vector<const Observer*> m_observers;
         };
+
+#if defined (_MSC_VER)
+        #pragma warning( pop )
+#endif
+
     };
 };