First working version with some test executables

include/utils/jsonschema/JsonSchemaChecker.h

@@ -0,0 +1,75 @@
+// Copyright (c) 2012 TNO, The Netherlands.
+//
+// This file contains information proprietary to TNO.
+//
+// Any disclosure or use of this information or any reproduction of this document or any part thereof for
+// other than the specified purpose for which it is intended is expressly prohibited except as TNO may
+// otherwise agree to in writing.
+
+#pragma once
+
+// stl includes
+#include <string>
+#include <list>
+
+// jsoncpp includes
+#include <json/json.h>
+
+/**
+ * JsonSchemaChecker is a very basic implementation of json schema.
+ * The json schema definition draft can be found at
+ * http://tools.ietf.org/html/draft-zyp-json-schema-03
+ *
+ * The following keywords are supported:
+ * - type
+ * - required
+ * - properties
+ * - items
+ * - enum
+ * - minimum
+ * - maximum
+ */
+class JsonSchemaChecker
+{
+public:
+	JsonSchemaChecker();
+	virtual ~JsonSchemaChecker();
+
+	bool setSchema(const Json::Value & schema);
+
+	bool validate(const Json::Value & value);
+
+	const std::list<std::string> & getMessages() const;
+
+private:
+	void collectReferences(const Json::Value & schema);
+
+	void validate(const Json::Value &value, const Json::Value & schema);
+
+	void setMessage(const std::string & message);
+
+	void collectDependencies(const Json::Value & value, const Json::Value &schema);
+
+private:
+	// attribute check functions
+	void checkType(const Json::Value & value, const Json::Value & schema);
+	void checkProperties(const Json::Value & value, const Json::Value & schema);
+	void checkAdditionalProperties(const Json::Value & value, const Json::Value & schema, const Json::Value::Members & ignoredProperties);
+	void checkDependencies(const Json::Value & value, const Json::Value & schemaLink);
+	void checkMinimum(const Json::Value & value, const Json::Value & schema);
+	void checkMaximum(const Json::Value & value, const Json::Value & schema);
+	void checkItems(const Json::Value & value, const Json::Value & schema);
+	void checkMinItems(const Json::Value & value, const Json::Value & schema);
+	void checkMaxItems(const Json::Value & value, const Json::Value & schema);
+	void checkUniqueItems(const Json::Value & value, const Json::Value & schema);
+	void checkEnum(const Json::Value & value, const Json::Value & schema);
+
+private:
+	Json::Value _schema;
+
+	std::list<std::string> _currentPath;
+	std::list<std::string> _messages;
+	bool _error;
+
+	std::map<std::string, const Json::Value *> _references; // ref 2 value
+};