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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_POLICY_CLOUD_RESOURCE_CACHE_H_ | 5 #ifndef COMPONENTS_POLICY_CORE_COMMON_CLOUD_RESOURCE_CACHE_H_ |
6 #define CHROME_BROWSER_POLICY_CLOUD_RESOURCE_CACHE_H_ | 6 #define COMPONENTS_POLICY_CORE_COMMON_CLOUD_RESOURCE_CACHE_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <set> | 9 #include <set> |
10 #include <string> | 10 #include <string> |
11 | 11 |
12 #include "base/basictypes.h" | 12 #include "base/basictypes.h" |
13 #include "base/callback_forward.h" | 13 #include "base/callback_forward.h" |
14 #include "base/files/file_path.h" | 14 #include "base/files/file_path.h" |
15 #include "base/memory/ref_counted.h" | 15 #include "base/memory/ref_counted.h" |
| 16 #include "components/policy/policy_export.h" |
16 | 17 |
17 namespace base { | 18 namespace base { |
18 class SequencedTaskRunner; | 19 class SequencedTaskRunner; |
19 } | 20 } |
20 | 21 |
21 namespace policy { | 22 namespace policy { |
22 | 23 |
23 // Manages storage of data at a given path. The data is keyed by a key and | 24 // Manages storage of data at a given path. The data is keyed by a key and |
24 // a subkey, and can be queried by (key, subkey) or (key) lookups. | 25 // a subkey, and can be queried by (key, subkey) or (key) lookups. |
25 // The contents of the cache have to be manually cleared using Delete() or | 26 // The contents of the cache have to be manually cleared using Delete() or |
26 // Purge*(). | 27 // Purge*(). |
27 // The class can be instantiated on any thread but from then on, it must be | 28 // The class can be instantiated on any thread but from then on, it must be |
28 // accessed via the |task_runner| only. The |task_runner| must support file I/O. | 29 // accessed via the |task_runner| only. The |task_runner| must support file I/O. |
29 class ResourceCache { | 30 class POLICY_EXPORT ResourceCache { |
30 public: | 31 public: |
31 explicit ResourceCache(const base::FilePath& cache_path, | 32 explicit ResourceCache(const base::FilePath& cache_path, |
32 scoped_refptr<base::SequencedTaskRunner> task_runner); | 33 scoped_refptr<base::SequencedTaskRunner> task_runner); |
33 virtual ~ResourceCache(); | 34 virtual ~ResourceCache(); |
34 | 35 |
35 // Stores |data| under (key, subkey). Returns true if the store suceeded, and | 36 // Stores |data| under (key, subkey). Returns true if the store suceeded, and |
36 // false otherwise. | 37 // false otherwise. |
37 bool Store(const std::string& key, | 38 bool Store(const std::string& key, |
38 const std::string& subkey, | 39 const std::string& subkey, |
39 const std::string& data); | 40 const std::string& data); |
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86 base::FilePath cache_dir_; | 87 base::FilePath cache_dir_; |
87 | 88 |
88 // Task runner that |this| runs on. | 89 // Task runner that |this| runs on. |
89 scoped_refptr<base::SequencedTaskRunner> task_runner_; | 90 scoped_refptr<base::SequencedTaskRunner> task_runner_; |
90 | 91 |
91 DISALLOW_COPY_AND_ASSIGN(ResourceCache); | 92 DISALLOW_COPY_AND_ASSIGN(ResourceCache); |
92 }; | 93 }; |
93 | 94 |
94 } // namespace policy | 95 } // namespace policy |
95 | 96 |
96 #endif // CHROME_BROWSER_POLICY_CLOUD_RESOURCE_CACHE_H_ | 97 #endif // COMPONENTS_POLICY_CORE_COMMON_CLOUD_RESOURCE_CACHE_H_ |
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