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71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
#include <Common/Config/AbstractConfigurationComparison.h>
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#include <unordered_set>
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#include <common/StringRef.h>
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#include <Poco/Util/AbstractConfiguration.h>
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namespace DB
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{
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namespace
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{
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String concatKeyAndSubKey(const String & key, const String & subkey)
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{
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// Copied from Poco::Util::ConfigurationView::translateKey():
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String result = key;
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if (!result.empty() && !subkey.empty() && subkey[0] != '[')
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result += '.';
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result += subkey;
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return result;
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};
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}
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bool isSameConfiguration(const Poco::Util::AbstractConfiguration & left, const Poco::Util::AbstractConfiguration & right)
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{
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return isSameConfiguration(left, String(), right, String());
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}
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bool isSameConfiguration(const Poco::Util::AbstractConfiguration & left, const String & left_key,
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const Poco::Util::AbstractConfiguration & right, const String & right_key)
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{
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if (&left == &right && left_key == right_key)
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return true;
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bool has_property = left.hasProperty(left_key);
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if (has_property != right.hasProperty(right_key))
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return false;
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if (has_property)
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{
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/// The left and right configurations contains values so we can compare them.
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if (left.getRawString(left_key) != right.getRawString(right_key))
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return false;
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}
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/// Get the subkeys of the left and right configurations.
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Poco::Util::AbstractConfiguration::Keys subkeys;
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left.keys(left_key, subkeys);
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{
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/// Check that the right configuration has the same set of subkeys as the left configuration.
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Poco::Util::AbstractConfiguration::Keys right_subkeys;
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right.keys(right_key, right_subkeys);
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std::unordered_set<StringRef> left_subkeys{subkeys.begin(), subkeys.end()};
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if ((left_subkeys.size() != right_subkeys.size()) || (left_subkeys.size() != subkeys.size()))
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return false;
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for (const auto & right_subkey : right_subkeys)
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if (!left_subkeys.count(right_subkey))
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return false;
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}
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/// Go through all the subkeys and compare corresponding parts of the configurations.
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for (const auto & subkey : subkeys)
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if (!isSameConfiguration(left, concatKeyAndSubKey(left_key, subkey), right, concatKeyAndSubKey(right_key, subkey)))
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return false;
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return true;
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}
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}
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