/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * 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 . */ #ifndef INCLUDED_UNOTOOLS_CONFIGNODE_HXX #define INCLUDED_UNOTOOLS_CONFIGNODE_HXX #include #include #include #include #include #include #include #include namespace comphelper { class ComponentContext; } namespace utl { //= OConfigurationNode class OConfigurationTreeRoot; /** a small wrapper around a configuration node.

Nodes in the terminology used herein are inner nodes of a configuration tree, which means no leafs. */ class UNOTOOLS_DLLPUBLIC OConfigurationNode : public ::utl::OEventListenerAdapter { private: ::com::sun::star::uno::Reference< ::com::sun::star::container::XHierarchicalNameAccess > m_xHierarchyAccess; /// accessing children grandchildren (mandatory interface of our UNO object) ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameAccess > m_xDirectAccess; /// accessing children (mandatory interface of our UNO object) ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameReplace > m_xReplaceAccess; /// replacing child values ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameContainer > m_xContainerAccess; /// modifying set nodes (optional interface of our UNO object) ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > m_xDummy; bool m_bEscapeNames; /// escape names before accessing children ? OUString m_sCompletePath; OConfigurationNode insertNode(const OUString& _rName,const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _xNode) const throw(); protected: /// constructs a node object with an interface representing a node OConfigurationNode( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _rxNode ); const ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameAccess >& getUNONode() const { return m_xDirectAccess; } public: /// constructs an empty and invalid node object OConfigurationNode() :m_bEscapeNames(false) { } /// copy ctor OConfigurationNode(const OConfigurationNode& _rSource); /// assigment const OConfigurationNode& operator=(const OConfigurationNode& _rSource); /// dtor ~OConfigurationNode() {} /// returns the local name of the node OUString getLocalName() const; /// returns the fully qualified path of the node OUString getNodePath() const; /** open a sub node @param _rPath access path of the to-be-opened sub node. May be a hierarchical path. */ OConfigurationNode openNode(const OUString& _rPath) const throw(); OConfigurationNode openNode( const sal_Char* _pAsciiPath ) const { return openNode( OUString::createFromAscii( _pAsciiPath ) ); } /** create a new child node If the object represents a set node, this method may be used to create a new child. For non-set-nodes, the method will fail.
Unless the respective operations on the pure configuration API, the to-be-created node immediately becomes a part of it's hierarchy, no explicit insertion is necessary. @param _rName name for the new child. Must be level-1-depth. */ OConfigurationNode createNode(const OUString& _rName) const throw(); OConfigurationNode createNode( const sal_Char* _pAsciiName ) const { return createNode( OUString::createFromAscii( _pAsciiName ) ); } /** remove an existent child nod If the object represents a set node, this method may be used to delete an existent child. For non-set-nodes, the method will fail. */ bool removeNode(const OUString& _rName) const throw(); bool removeNode( const sal_Char* _pAsciiName ) const { return removeNode( OUString::createFromAscii( _pAsciiName ) ); } /** retrieves the content of a descendant the returned value may contain anything from an interface (if _rPath refers to inner node of the configuration tree) to any explicit value (e.g. string, integer) or even void.
Unfortunately, this implies that if a void value is returned, you won't have a clue if this means "the path does not exist" (besides the assertion made :), or if the value is really void. */ ::com::sun::star::uno::Any getNodeValue(const OUString& _rPath) const throw(); ::com::sun::star::uno::Any getNodeValue( const sal_Char* _pAsciiPath ) const { return getNodeValue( OUString::createFromAscii( _pAsciiPath ) ); } /** write a node value

The value given is written into the node specified by the given relative path.
In opposite to getNodeValue, _rName must refer to a leaf in the configuration tree, not an inner node. @return sal_True if and only if the write was successful. */ bool setNodeValue(const OUString& _rPath, const ::com::sun::star::uno::Any& _rValue) const throw(); bool setNodeValue( const sal_Char* _pAsciiPath, const ::com::sun::star::uno::Any& _rValue ) const { return setNodeValue( OUString::createFromAscii( _pAsciiPath ), _rValue ); } /// return the names of the existing children ::com::sun::star::uno::Sequence< OUString > getNodeNames() const throw(); /** enables or disables name escaping when accessing direct children

Escaping is disabled by default, usually you enable it for set nodes (e.g. with calling setEscape(isSetNode)). Once escaping is enabled, you should not access indirect children (e.g. openNode("child/grandchild"), 'cause escaping for such names may not be supported by the underlying API objects. @see getEscape */ void setEscape(bool _bEnable = true); /** get the flag specifying the current escape behaviour @see setEscape */ bool getEscape() const { return m_bEscapeNames; } /// invalidate the object virtual void clear() throw(); // meta information about the node /// checks whether or not the object represents a set node. bool isSetNode() const; /// checks whether or not a direct child with a given name exists bool hasByName(const OUString& _rName) const throw(); bool hasByName( const sal_Char* _pAsciiName ) const { return hasByName( OUString::createFromAscii( _pAsciiName ) ); } /// checks whether or not a descendent (no matter if direct or indirect) with the given name exists bool hasByHierarchicalName( const OUString& _rName ) const throw(); bool hasByHierarchicalName( const sal_Char* _pAsciiName ) const { return hasByHierarchicalName( OUString::createFromAscii( _pAsciiName ) ); } /// check if the objects represents a valid configuration node bool isValid() const { return m_xHierarchyAccess.is(); } /// check whether the object is read-only of updatable bool isReadonly() const { return !m_xReplaceAccess.is(); } protected: // OEventListenerAdapter virtual void _disposing( const ::com::sun::star::lang::EventObject& _rSource ) SAL_OVERRIDE; protected: enum NAMEORIGIN { NO_CONFIGURATION, /// the name came from a configuration node NO_CALLER /// the name came from a client of this class }; OUString normalizeName(const OUString& _rName, NAMEORIGIN _eOrigin) const; }; //= OConfigurationTreeRoot /** a specialized version of a OConfigurationNode, representing the root of a configuration sub tree

Only this class is able to commit any changes made any any OConfigurationNode objects. */ class UNOTOOLS_DLLPUBLIC OConfigurationTreeRoot : public OConfigurationNode { ::com::sun::star::uno::Reference< ::com::sun::star::util::XChangesBatch > m_xCommitter; protected: /** ctor for a readonly node */ OConfigurationTreeRoot( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _rxRootNode ); public: /// modes to use when creating a top-level node object enum CREATION_MODE { /// open the node (i.e. sub tree) for read access only CM_READONLY, /// open the node (i.e. sub tree) for read and write access, fall back to read-only if write access is not possible CM_UPDATABLE }; public: /** default ctor

The object constructed here is invalid (i.e. isValid will return sal_False). */ OConfigurationTreeRoot() :OConfigurationNode() { } /** creates a configuration tree for the given path in the given mode */ OConfigurationTreeRoot( const css::uno::Reference & i_rContext, const OUString& i_rNodePath, const bool i_bUpdatable ); /// copy ctor OConfigurationTreeRoot(const OConfigurationTreeRoot& _rSource) :OConfigurationNode(_rSource), m_xCommitter(_rSource.m_xCommitter) { } /** open a new top-level configuration node opens a new node which is the root if an own configuration sub tree. This is what "top level" means: The node does not have a parent. It does not mean that the node represents a module tree (like org.openoffice.Office.Writer or such).
In opposite to createWithServiceFactory, createWithProvider expects a configuration provider to work with. @param _rxConfProvider configuration provider to use when retrieving the node. @param _rPath path to the node the object should represent @param _nDepth depth for node retrieval @param _eMode specifies which privileges should be applied when retrieving the node @see createWithServiceFactory */ static OConfigurationTreeRoot createWithProvider( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& _rxConfProvider, const OUString& _rPath, sal_Int32 _nDepth = -1, CREATION_MODE _eMode = CM_UPDATABLE, bool _bLazyWrite = true ); /** open a new top-level configuration node

opens a new node which is the root if an own configuration sub tree. This is what "top level" means: The node does not have a parent. It does not mean that the node represents a module tree (like org.openoffice.Office.Writer or such).
In opposite to createWithProvider, createWithProvider expects a service factory. This factory is used to create a configuration provider, and this provider is used to retrieve the node @see createWithProvider @param _rxContext service factory to use to create the configuration provider. @param _rPath path to the node the object should represent @param _nDepth depth for node retrieval @param _eMode specifies which privileges should be applied when retrieving the node */ static OConfigurationTreeRoot createWithComponentContext(const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& _rxContext, const OUString& _rPath, sal_Int32 _nDepth = -1, CREATION_MODE _eMode = CM_UPDATABLE, bool _bLazyWrite = true); /** tolerant version of the createWithServiceFactory

No assertions are thrown in case of an failure to initialize the configuration service, but once the configuration could be initialized, errors in the creation of the specific node (e.g. because the given node path does not exist) are still asserted.

*/ static OConfigurationTreeRoot tryCreateWithComponentContext( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& rxContext, const OUString& _rPath, sal_Int32 _nDepth = -1, CREATION_MODE _eMode = CM_UPDATABLE, bool _bLazyWrite = true ); /** commit all changes made on the subtree the object is the root for

All changes made on any OConfigurationNode object retrieved (maybe indirect) from this root object are committed when calling this method. @return sal_True if and only if the commit was successful */ bool commit() const throw(); /// invalidate the object virtual void clear() throw() SAL_OVERRIDE; }; } // namespace utl #endif // INCLUDED_UNOTOOLS_CONFIGNODE_HXX /* vim:set shiftwidth=4 softtabstop=4 expandtab: */