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Update SchemaParser to return Adapter instances for JSON reference deref

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This commit is contained in:
Tristan Penman 2015-05-01 15:11:12 +10:00
parent 19da922101
commit 46d496b5fb
1 changed files with 16 additions and 5 deletions
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21
include/valijson/schema_parser.hpp
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@ -5,7 +5,10 @@
#include <iostream>
#include <boost/foreach.hpp>
#include <boost/static_assert.hpp>
#include <boost/type_traits.hpp>
#include <valijson/adapters/adapter.hpp>
#include <valijson/constraints/concrete_constraints.hpp>
#include <valijson/schema.hpp>
@ -46,7 +49,8 @@ public:
* multiple Adapter types.
*/
template<typename AdapterType>
struct DereferenceFunction: boost::function<const AdapterType & (const std::string &uri)> { };
struct DereferenceFunction:
boost::function<AdapterType (const std::string &uri)> { };
/**
* @brief Populate a Schema object from JSON Schema document.
@ -72,6 +76,11 @@ public:
Schema *parentSchema = NULL,
const std::string *ownName = NULL)
{
BOOST_STATIC_ASSERT_MSG((boost::is_convertible<AdapterType,
const valijson::adapters::Adapter &>::value),
"SchemaParser::populateSchema must be invoked with an "
"appropriate Adapter implementation");
if ((isReference(node))) {
const AdapterType &childNode = resolveReference<AdapterType>(deref, schema, node);
populateSchema<AdapterType>(childNode, schema, deref, parentSchema, ownName);
@ -280,7 +289,7 @@ private:
* @param node
*/
template<typename AdapterType>
const AdapterType & resolveReference(
AdapterType resolveReference(
boost::optional<DereferenceFunction<AdapterType> > deref,
const Schema &schema,
const AdapterType &node)
@ -292,13 +301,15 @@ private:
const typename Object::const_iterator itr = object.find("$ref");
if (itr != object.end()) {
if (itr->second.maybeString()) {
if (deref) {
if (!deref) {
return (*deref)(schema.resolveUri(itr->second.asString()));
} else {
throw std::runtime_error("Dereferencing of JSON References not enabled.");
throw std::runtime_error(
"Support for JSON References not enabled.");
}
} else {
throw std::runtime_error("$ref property expected to contain string value.");
throw std::runtime_error(
"$ref property expected to contain string value.");
}
}
}