| % Licensed 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. |
| |
| -module(ddoc_cache). |
| |
| -export([ |
| start/0, |
| stop/0 |
| ]). |
| |
| -export([ |
| open_doc/2, |
| open_doc/3, |
| open_validation_funs/1, |
| evict/2, |
| |
| %% deprecated |
| open/2 |
| ]). |
| |
| start() -> |
| application:start(ddoc_cache). |
| |
| stop() -> |
| application:stop(ddoc_cache). |
| |
| open_doc(DbName, DocId) -> |
| Key = {DbName, DocId, '_'}, |
| case ddoc_cache_opener:match_newest(Key) of |
| {ok, _} = Resp -> |
| couch_stats:increment_counter([ddoc_cache, hit]), |
| Resp; |
| missing -> |
| couch_stats:increment_counter([ddoc_cache, miss]), |
| ddoc_cache_opener:open_doc(DbName, DocId); |
| recover -> |
| couch_stats:increment_counter([ddoc_cache, recovery]), |
| ddoc_cache_opener:recover_doc(DbName, DocId) |
| end. |
| |
| open_doc(DbName, DocId, RevId) -> |
| Key = {DbName, DocId, RevId}, |
| case ddoc_cache_opener:lookup(Key) of |
| {ok, _} = Resp -> |
| couch_stats:increment_counter([ddoc_cache, hit]), |
| Resp; |
| missing -> |
| couch_stats:increment_counter([ddoc_cache, miss]), |
| ddoc_cache_opener:open_doc(DbName, DocId, RevId); |
| recover -> |
| couch_stats:increment_counter([ddoc_cache, recovery]), |
| ddoc_cache_opener:recover_doc(DbName, DocId, RevId) |
| end. |
| |
| open_validation_funs(DbName) -> |
| Key = {DbName, validation_funs}, |
| case ddoc_cache_opener:lookup(Key) of |
| {ok, _} = Resp -> |
| couch_stats:increment_counter([ddoc_cache, hit]), |
| Resp; |
| missing -> |
| couch_stats:increment_counter([ddoc_cache, miss]), |
| ddoc_cache_opener:open_validation_funs(DbName); |
| recover -> |
| couch_stats:increment_counter([ddoc_cache, recovery]), |
| ddoc_cache_opener:recover_validation_funs(DbName) |
| end. |
| |
| evict(ShardDbName, DDocIds) -> |
| DbName = mem3:dbname(ShardDbName), |
| ddoc_cache_opener:evict_docs(DbName, DDocIds). |
| |
| open(DbName, validation_funs) -> |
| open_validation_funs(DbName); |
| open(DbName, <<"_design/", _/binary>>=DDocId) when is_binary(DbName) -> |
| open_doc(DbName, DDocId); |
| open(DbName, DDocId) when is_binary(DDocId) -> |
| open_doc(DbName, <<"_design/", DDocId/binary>>). |