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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
*
* https://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_Schema_hh__
#define avro_Schema_hh__
#include "Config.hh"
#include "NodeImpl.hh"
#include "CustomAttributes.hh"
#include <string>
/// \file
///
/// Schemas for representing all the avro types. The compound schema objects
/// allow composition from other schemas.
///
namespace avro {
/// The root Schema object is a base class. Nobody constructs this class directly.
class AVRO_DECL Schema {
public:
virtual ~Schema() = default;
Type type() const {
return node_->type();
}
const NodePtr &root() const {
return node_;
}
NodePtr &root() {
return node_;
}
protected:
explicit Schema(NodePtr node) : node_(std::move(node)) {}
explicit Schema(Node *node) : node_(node) {}
NodePtr node_;
};
class AVRO_DECL NullSchema : public Schema {
public:
NullSchema() : Schema(new NodePrimitive(AVRO_NULL)) {}
};
class AVRO_DECL BoolSchema : public Schema {
public:
BoolSchema() : Schema(new NodePrimitive(AVRO_BOOL)) {}
};
class AVRO_DECL IntSchema : public Schema {
public:
IntSchema() : Schema(new NodePrimitive(AVRO_INT)) {}
};
class AVRO_DECL LongSchema : public Schema {
public:
LongSchema() : Schema(new NodePrimitive(AVRO_LONG)) {}
};
class AVRO_DECL FloatSchema : public Schema {
public:
FloatSchema() : Schema(new NodePrimitive(AVRO_FLOAT)) {}
};
class AVRO_DECL DoubleSchema : public Schema {
public:
DoubleSchema() : Schema(new NodePrimitive(AVRO_DOUBLE)) {}
};
class AVRO_DECL StringSchema : public Schema {
public:
StringSchema() : Schema(new NodePrimitive(AVRO_STRING)) {}
};
class AVRO_DECL BytesSchema : public Schema {
public:
BytesSchema() : Schema(new NodePrimitive(AVRO_BYTES)) {}
};
class AVRO_DECL RecordSchema : public Schema {
public:
explicit RecordSchema(const std::string &name);
void addField(const std::string &name, const Schema &fieldSchema);
// Add a field with custom attributes
void addField(const std::string &name, const Schema &fieldSchema,
const CustomAttributes &customAttributes);
std::string getDoc() const;
void setDoc(const std::string &);
};
class AVRO_DECL EnumSchema : public Schema {
public:
explicit EnumSchema(const std::string &name);
void addSymbol(const std::string &symbol);
};
class AVRO_DECL ArraySchema : public Schema {
public:
explicit ArraySchema(const Schema &itemsSchema);
ArraySchema(const ArraySchema &itemsSchema);
};
class AVRO_DECL MapSchema : public Schema {
public:
explicit MapSchema(const Schema &valuesSchema);
MapSchema(const MapSchema &itemsSchema);
};
class AVRO_DECL UnionSchema : public Schema {
public:
UnionSchema();
void addType(const Schema &typeSchema);
};
class AVRO_DECL FixedSchema : public Schema {
public:
FixedSchema(int size, const std::string &name);
};
class AVRO_DECL SymbolicSchema : public Schema {
public:
SymbolicSchema(const Name &name, const NodePtr &link);
};
} // namespace avro
#endif
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