56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
/*
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* Copyright (C) 2008 Patrick Ohly
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*/
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#ifndef INCL_EVOLUTION_PREFIX_CONFIG_NODE
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# define INCL_EVOLUTION_PREFIX_CONFIG_NODE
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#include <ConfigNode.h>
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#include <boost/shared_ptr.hpp>
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#include <map>
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#include <utility>
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#include <vector>
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#include <string>
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using namespace std;
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/**
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* This class acts as filter between a real config node and its user:
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* a fixed prefix is added to each key when setting/getting a property.
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* The list of properties only includes the key/value pairs with
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* a matching prefix.
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*
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* The purpose is to have multiple users accessing the same underlying
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* node without running into namespace conflicts.
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*/
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class PrefixConfigNode : public ConfigNode {
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public:
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/** read-write access to underlying node */
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PrefixConfigNode(const string prefix,
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const boost::shared_ptr<ConfigNode> &node);
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/** read-only access to underlying node */
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PrefixConfigNode(const string prefix,
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const boost::shared_ptr<const ConfigNode> &node);
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virtual string getName() const { return m_readOnlyNode->getName(); }
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/* ConfigNode API */
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virtual void flush();
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virtual string readProperty(const string &property) const;
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virtual void setProperty(const string &property,
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const string &value,
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const string &comment = "",
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const string *defValue = NULL);
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virtual void readProperties(map<string, string> &props) const;
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virtual void removeProperty(const string &property);
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virtual bool exists() const { return m_readOnlyNode->exists(); }
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private:
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string m_prefix;
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boost::shared_ptr<ConfigNode> m_node;
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boost::shared_ptr<const ConfigNode> m_readOnlyNode;
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};
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#endif
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