// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_POLICY_CONFIG_DIR_POLICY_PROVIDER_H_
#define CHROME_BROWSER_POLICY_CONFIG_DIR_POLICY_PROVIDER_H_
#pragma once

#include "chrome/browser/policy/file_based_policy_provider.h"

namespace policy {

// A policy loader implementation backed by a set of files in a given directory.
// The files should contain JSON-formatted policy settings. They are merged
// together and the result is returned via the PolicyLoader interface. The files
// are consulted in lexicographic file name order, so the last value read takes
// precedence in case of preference key collisions.
class ConfigDirPolicyLoader : public FileBasedPolicyProvider::Delegate {
 public:
  explicit ConfigDirPolicyLoader(const FilePath& config_dir);

  // FileBasedPolicyLoader::Delegate implementation.
  virtual DictionaryValue* Load();
  virtual base::Time GetLastModification();

 private:
  DISALLOW_COPY_AND_ASSIGN(ConfigDirPolicyLoader);
};

// Policy provider backed by JSON files in a configuration directory.
class ConfigDirPolicyProvider : public FileBasedPolicyProvider {
 public:
  ConfigDirPolicyProvider(
      const ConfigurationPolicyProvider::PolicyDefinitionList* policy_list,
      const FilePath& config_dir);

 private:
  DISALLOW_COPY_AND_ASSIGN(ConfigDirPolicyProvider);
};

}  // namespace policy

#endif  // CHROME_BROWSER_POLICY_CONFIG_DIR_POLICY_PROVIDER_H_