| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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 |
| * |
| * 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. |
| * |
| *************************************************************/ |
| |
| |
| #ifndef __FILTER_CONFIG_CACHEUPDATELISTENER_HXX_ |
| #define __FILTER_CONFIG_CACHEUPDATELISTENER_HXX_ |
| |
| //_______________________________________________ |
| // includes |
| |
| #include "filtercache.hxx" |
| #include <com/sun/star/lang/XMultiServiceFactory.hpp> |
| #include <com/sun/star/lang/XEventListener.hpp> |
| #include <com/sun/star/util/XChangesListener.hpp> |
| #include <salhelper/singletonref.hxx> |
| #include <cppuhelper/implbase1.hxx> |
| |
| //_______________________________________________ |
| // namespace |
| |
| namespace filter{ |
| namespace config{ |
| |
| //_______________________________________________ |
| // definitions |
| |
| //_______________________________________________ |
| |
| /** @short implements a listener, which will update the |
| global filter cache, if the underlying configuration |
| wa changed by other processes. |
| */ |
| class CacheUpdateListener : public BaseLock // must be the first one to guarantee right initialized mutex member! |
| , public ::cppu::WeakImplHelper1< css::util::XChangesListener > |
| { |
| //------------------------------------------- |
| // member |
| |
| private: |
| |
| /** @short reference to an uno service manager, which can be used |
| to create own needed services. */ |
| css::uno::Reference< css::lang::XMultiServiceFactory > m_xSMGR; |
| |
| /** @short reference to the singleton(!) filter cache implementation, |
| which should be updated by this thread. */ |
| ::salhelper::SingletonRef< FilterCache > m_rCache; |
| |
| /** @short holds the configuration access, where we listen alive. */ |
| css::uno::Reference< css::uno::XInterface > m_xConfig; |
| |
| /** @short every instance of this update listener listen on |
| a special sub set of the filter configuration. |
| So it should know, which type of configuration entry |
| it must put into the filter cache, if the configuration notifys changes ... */ |
| FilterCache::EItemType m_eConfigType; |
| |
| //------------------------------------------- |
| // native interface |
| |
| public: |
| |
| //--------------------------------------- |
| // ctor/dtor |
| |
| /** @short initialize new instance of this class. |
| |
| @descr Listening wont be started here. It can be done |
| by calling startListening() on this instance. |
| |
| @see startListening() |
| |
| @param xSMGR |
| reference to a service manager, which can be used to create |
| own needed uno services. |
| |
| @param xConfigAccess |
| the configuration access, where this instance should listen for changes. |
| |
| @param eConfigType |
| specify the type of configuration. |
| */ |
| CacheUpdateListener(const css::uno::Reference< css::lang::XMultiServiceFactory >& xSMGR , |
| const css::uno::Reference< css::uno::XInterface >& xConfigAccess, |
| FilterCache::EItemType eConfigType ); |
| |
| //--------------------------------------- |
| |
| /** @short standard dtor. |
| */ |
| virtual ~CacheUpdateListener(); |
| |
| //--------------------------------------- |
| |
| /** @short starts listening. |
| */ |
| virtual void startListening(); |
| |
| //--------------------------------------- |
| |
| /** @short stop listening. |
| */ |
| virtual void stopListening(); |
| |
| //------------------------------------------- |
| // uno interface |
| |
| public: |
| |
| //--------------------------------------- |
| // XChangesListener |
| |
| virtual void SAL_CALL changesOccurred(const css::util::ChangesEvent& aEvent) |
| throw(css::uno::RuntimeException); |
| |
| //--------------------------------------- |
| // lang.XEventListener |
| virtual void SAL_CALL disposing(const css::lang::EventObject& aEvent) |
| throw(css::uno::RuntimeException); |
| }; |
| |
| } // namespace config |
| } // namespace filter |
| |
| #endif // __FILTER_CONFIG_CACHEUPDATELISTENER_HXX_ |