libminifi/include/core/ConfigurationFactory.h

/**
 *
 * 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 LIBMINIFI_INCLUDE_CORE_CONFIGURATIONFACTORY_H_
#define LIBMINIFI_INCLUDE_CORE_CONFIGURATIONFACTORY_H_

#include "FlowConfiguration.h"
#include  <type_traits>

namespace org {
namespace apache {
namespace nifi {
namespace minifi {
namespace core {

template<typename T>
typename std::enable_if<!class_operations<T>::value, T*>::type instantiate(const std::shared_ptr<core::Repository> &repo, const std::shared_ptr<core::Repository> &flow_file_repo,
                                                                           const std::shared_ptr<core::ContentRepository> &content_repo, std::shared_ptr<Configure> configuration,
                                                                           const std::string path) {
  throw std::runtime_error("Cannot instantiate class");
}

template<typename T>
typename std::enable_if<class_operations<T>::value, T*>::type instantiate(const std::shared_ptr<core::Repository> &repo, const std::shared_ptr<core::Repository> &flow_file_repo,
                                                                          const std::shared_ptr<core::ContentRepository> &content_repo, const std::shared_ptr<io::StreamFactory> &stream_factory,
                                                                          std::shared_ptr<Configure> configuration, const std::string path) {
  return new T(repo, flow_file_repo, content_repo, stream_factory, configuration, path);
}

/**
 * Configuration factory is used to create a new FlowConfiguration
 * object.
 */
std::unique_ptr<core::FlowConfiguration> createFlowConfiguration(std::shared_ptr<core::Repository> repo, std::shared_ptr<core::Repository> flow_file_repo,
                                                                 std::shared_ptr<core::ContentRepository> content_repo, std::shared_ptr<Configure> configure,
                                                                 std::shared_ptr<io::StreamFactory> stream_factory, const std::string configuration_class_name, const std::string path = "",
                                                                 bool fail_safe = false);

} /* namespace core */
} /* namespace minifi */
} /* namespace nifi */
} /* namespace apache */
} /* namespace org */

#endif /* LIBMINIFI_INCLUDE_CORE_CONFIGURATIONFACTORY_H_ */