82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
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/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2018 Danny Robson <danny@nerdcruft.net>
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*/
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#include "properties.hpp"
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#include "../tree.hpp"
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using util::json::schema::constraint::properties;
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///////////////////////////////////////////////////////////////////////////////
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properties::properties (::json::tree::node const &def)
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{
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if (!def.is_object ())
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throw constraint_error<properties> (def);
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for (auto const &[key,val]: def.as_object ()) {
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m_properties.emplace (key, *val);
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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properties::output_iterator
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properties::validate (output_iterator res, ::json::tree::node &target) const noexcept
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{
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if (!target.is_object ())
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return *res++ = { .rule = *this, .target = target };
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auto &obj = target.as_object ();
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// validate the keys that are present against the property schemas
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for (const auto &[key,val]: obj) {
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auto const pos = m_properties.find (key);
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if (pos == m_properties.end ())
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continue;
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res = pos->second.validate (res, *val);
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}
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// check if there's a key in the schema that isn't present but has a default
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for (auto const &[key,doc]: m_properties) {
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if (!doc.has_default ())
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continue;
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auto pos = obj.find (key);
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if (pos == obj.end ())
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obj.insert (key, doc.default_value ());
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}
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return res;
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}
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///////////////////////////////////////////////////////////////////////////////
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std::ostream&
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properties::describe (std::ostream &os) const
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{
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os << "{ properties: [ ";
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for (auto const &[key,val]: m_properties) {
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os << key << ": ";
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val.describe (os);
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os << ", ";
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}
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return os << " ] }";
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}
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