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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef avro_CustomFields_hh__
#define avro_CustomFields_hh__
#include <iostream>
#include "../impl/json/JsonDom.hh"
namespace avro {
// CustomFields class stores avro custom attributes.
// Each field is represented by a unique name and value.
// User is supposed to create CustomFields object and then add it to Schema.
class AVRO_DECL CustomFields {
public:
// Retrieves the custom field json entity for that fieldName, returns an
// null Entity if the field doesn't exist.
json::Entity getField(const std::string &fieldName) const;
// Adds a custom field. If the field already exists, throw an exception.
void addField(const std::string &fieldName, const json::Entity &fieldValue);
void addField(const std::string &fieldName, const std::string &fieldValue);
// Provides a way to iterate over the custom fields or check field size.
const std::map<std::string, json::Entity> &fields() const {
return fields_;
}
// Prints the json string for the specific field.
void printJson(std::ostream& os, const std::string &fieldName) const;
private:
std::map<std::string, json::Entity> fields_;
};
} // namespace avro
#endif
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