33 lines
837 B
C++
33 lines
837 B
C++
#pragma once
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#include <iostream>
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#include "parse.hh"
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namespace paxos
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{
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template <typename ValueType>
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bool safe_get_key(const json& json_obj, const std::string& key,
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ValueType& value, bool mandatory = false)
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{
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try
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{
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json_obj.at(key).get_to(value);
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}
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catch (json::out_of_range& e)
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{
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if (mandatory)
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error_and_exit(1, "parse_configuration: mandatory key '"
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+ key + "' not found.");
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return 0;
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}
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catch (const std::exception& e)
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{
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std::cout << e.what() << " in " << key << "\n";
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error_and_exit(1, "parse_configuration: key '" + key +
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"' is associated with a value of bad type");
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}
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return 1;
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}
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} // namespace paxos
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