geoobj.h

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/*    Copyright 2014 MongoDB Inc.
 *
 *    Licensed 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.
 */
 
#pragma once
 
#include <string>
#include <vector>
 
#include "mongo/base/string_data.h"
#include "mongo/client/export_macros.h"
#include "mongo/db/jsobj.h"
#include "mongo/geo/boundingbox.h"
#include "mongo/geo/constants.h"
#include "mongo/util/assert_util.h"
 
namespace mongo {
namespace geo {
 
template <typename TCoordinates>
class GeoObj {
public:
    virtual ~GeoObj() {}
 
    virtual BSONObj toBSON() const = 0;
 
    virtual BoundingBox<TCoordinates> getBoundingBox() const = 0;
 
    virtual GeoObjType getType() const = 0;
 
protected:
    static BSONObj validateType(const BSONObj& bson, const StringData& typeStr);
};
 
template <typename TCoordinates>
BSONObj GeoObj<TCoordinates>::validateType(const BSONObj& bson, const StringData& typeStr) {
    BSONElement typeField = bson.getField(kTypeFieldName);
    uassert(0,
            "bson must be a valid " + typeStr.toString() + " type",
            !typeField.eoo() && ((typeField.type() == String) || (typeField.String() == typeStr)));
    return bson;
}
 
}  // namespace geo
}  // namespace mongo