// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
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// notice, this list of conditions and the following disclaimer.
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// in the documentation and/or other materials provided with the
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// Author: liujisi@google.com (Pherl Liu)

#ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_GENERATOR_FACTORY_H__
#define GOOGLE_PROTOBUF_COMPILER_JAVA_GENERATOR_FACTORY_H__

#include <google/protobuf/stubs/common.h>

namespace google {
namespace protobuf {
class FieldDescriptor;         // descriptor.h
class Descriptor;              // descriptor.h
class ServiceDescriptor;       // descriptor.h
namespace compiler {
  namespace java {
    class MessageGenerator;    // message.h
    class ExtensionGenerator;  // extension.h
    class ServiceGenerator;    // service.h
    class Context;             // context.h
  }
}
}  // namespace protobuf
}  // namespace google

namespace google {
namespace protobuf {
namespace compiler {
namespace java {

class GeneratorFactory {
 public:
  GeneratorFactory();
  virtual ~GeneratorFactory();

  virtual MessageGenerator* NewMessageGenerator(
      const Descriptor* descriptor) const = 0;

  virtual ExtensionGenerator* NewExtensionGenerator(
      const FieldDescriptor* descriptor) const = 0;

  virtual ServiceGenerator* NewServiceGenerator(
      const ServiceDescriptor* descriptor) const = 0;

 private:
  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(GeneratorFactory);
};

// Factory that creates generators for immutable-default messages.
class ImmutableGeneratorFactory : public GeneratorFactory {
 public:
  ImmutableGeneratorFactory(Context* context);
  virtual ~ImmutableGeneratorFactory();

  virtual MessageGenerator* NewMessageGenerator(
      const Descriptor* descriptor) const;

  virtual ExtensionGenerator* NewExtensionGenerator(
      const FieldDescriptor* descriptor) const;

  virtual ServiceGenerator* NewServiceGenerator(
      const ServiceDescriptor* descriptor) const;

 private:
  Context* context_;
  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ImmutableGeneratorFactory);
};


}  // namespace java
}  // namespace compiler
}  // namespace protobuf
}  // namespace google

#endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_GENERATOR_FACTORY_H__