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checker.hpp
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checker.hpp
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/**
* @file
*
* @brief Headerfile of Struct checker
*
* @copyright BSD License (see LICENSE.md or https://www.libelektra.org)
*
*/
#ifndef CHECKER_HPP
#define CHECKER_HPP
#include <map>
#include <memory>
#include <string>
#include <key.hpp>
#include <keyset.hpp>
namespace elektra
{
class Factory;
class Checker
{
public:
/**Gets a reference to the outside keyset.
Dont change it!
Make a duplicate if you need to.*/
virtual void check (kdb::KeySet & ks) = 0;
/**Build up the Checker.
From the Factory you can get instances of other checkers.
Will build up recursively, dependent on the given
configuration*/
virtual void buildup (Factory & f, std::string const & templateParameter) = 0;
virtual ~Checker ();
};
typedef std::unique_ptr<Checker> CheckerPtr;
class StructChecker : public Checker
{
kdb::KeySet config;
public:
explicit StructChecker (kdb::KeySet config_) : config (config_)
{
}
void buildup (Factory & f, std::string const & templateParameter) override;
void check (kdb::KeySet & ks) override
{
config.rewind ();
kdb::Key confRoot = config.next ();
if (!confRoot) throw "StructChecker: No confRoot found";
kdb::Key cur;
kdb::Key root = ks.next ();
if (!root) throw "StructChecker: No root key found";
while ((cur = ks.next ()))
{
kdb::Key searchKey = config.next ();
if (!searchKey) throw "StructChecker: More keys found than structure should have";
if (!cur.isDirectBelow (root)) throw "StructChecker: key is not direct below";
if (searchKey.getBaseName () != cur.getBaseName ()) throw "StructChecker: did not find expected subkey";
cur.copyAllMeta (searchKey);
}
if (config.next ()) throw "StructChecker: There should be more elements in the structure";
}
};
class ListChecker : public Checker
{
CheckerPtr structure;
public:
void buildup (Factory & f, std::string const & templateParameter) override;
void check (kdb::KeySet & ks) override
{
kdb::Key k;
kdb::KeySet ks2 (ks.dup ());
ks2.rewind ();
kdb::Key root = ks2.next ();
if (!root) throw "ListChecker: no root key found";
while ((k = ks2.next ()))
{
if (!root.isDirectBelow (k)) throw "ListChecker: key is not direct below";
kdb::KeySet cks (ks2.cut (k));
structure->check (cks);
}
}
};
} // end namespace elektra
#endif