metadata_manager.hpp

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#ifndef __PROVISIONER_DOCKER_METADATA_MANAGER_HPP__
#define __PROVISIONER_DOCKER_METADATA_MANAGER_HPP__

#include <list>
#include <string>

#include <stout/hashmap.hpp>
#include <stout/hashset.hpp>
#include <stout/json.hpp>
#include <stout/option.hpp>
#include <stout/protobuf.hpp>
#include <stout/try.hpp>

#include <process/future.hpp>
#include <process/owned.hpp>
#include <process/process.hpp>

#include <mesos/docker/spec.hpp>

#include "slave/containerizer/mesos/provisioner/provisioner.hpp"

#include "slave/containerizer/mesos/provisioner/docker/message.hpp"

#include "slave/flags.hpp"

namespace mesos {
namespace internal {
namespace slave {
namespace docker {

// Forward Declaration.
class MetadataManagerProcess;

class MetadataManager
{
public:
  static Try<process::Owned<MetadataManager>> create(const Flags& flags);

  ~MetadataManager();

  process::Future<Nothing> recover();

  process::Future<Image> put(
      const ::docker::spec::ImageReference& reference,
      const std::vector<std::string>& layerIds);

  process::Future<Option<Image>> get(
      const ::docker::spec::ImageReference& reference,
      bool cached);

  process::Future<hashset<std::string>> prune(
      const std::vector<::docker::spec::ImageReference>& excludedImages);

private:
  explicit MetadataManager(process::Owned<MetadataManagerProcess> process);

  MetadataManager(const MetadataManager&); // Not copyable.
  MetadataManager& operator=(const MetadataManager&); // Not assignable.

  process::Owned<MetadataManagerProcess> process;
};


} // namespace docker {
} // namespace slave {
} // namespace internal {
} // namespace mesos {

#endif // __PROVISIONER_DOCKER_METADATA_MANAGER_HPP__