Mercurial > hg > orthanc-databases
annotate Framework/MySQL/MySQLResult.cpp @ 161:2ccde9c7311b optimized-routes
added new optimized REST routes. this is a temporary work to try to speed up some routes (used by LRO). This way, we avoid another app to access the Orthanc DB and we skip the plugin SDK update for a very specific route
| author | Alain Mazy <alain@mazy.be> |
|---|---|
| date | Fri, 10 Jul 2020 13:26:47 +0200 |
| parents | 063aa53b5917 |
| children | 3236894320d6 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
|
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upgrade to year 2020
Sebastien Jodogne <s.jodogne@gmail.com>
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "MySQLResult.h" | |
| 23 | |
| 152 | 24 #include <Logging.h> |
| 25 #include <OrthancException.h> | |
| 0 | 26 |
| 6 | 27 #include <errmsg.h> |
| 0 | 28 #include <mysqld_error.h> |
| 29 | |
| 30 namespace OrthancDatabases | |
| 31 { | |
| 32 void MySQLResult::Step() | |
| 33 { | |
| 34 int code = mysql_stmt_fetch(statement_.GetObject()); | |
| 35 | |
| 36 if (code == 1) | |
| 37 { | |
| 38 unsigned int error = mysql_errno(database_.GetObject()); | |
|
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39 |
| 0 | 40 if (error == 0) |
| 41 { | |
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Sebastien Jodogne <s.jodogne@gmail.com>
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changeset
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42 // This case occurs in requests without a result (e.g. if the |
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9e419261f1c9
mysql storage area working
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
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43 // SQL request is not a SELECT) |
| 0 | 44 done_ = true; |
| 45 } | |
| 46 else if (error == CR_SERVER_GONE_ERROR || | |
| 47 error == CR_SERVER_LOST || | |
| 48 error == ER_QUERY_INTERRUPTED) | |
| 49 { | |
| 50 database_.LogError(); | |
| 51 throw Orthanc::OrthancException(Orthanc::ErrorCode_DatabaseUnavailable); | |
| 52 } | |
| 53 else | |
| 54 { | |
| 55 database_.LogError(); | |
| 56 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); | |
| 57 } | |
| 58 } | |
| 59 else | |
| 60 { | |
| 61 done_ = (code != 0 && | |
| 62 code != MYSQL_DATA_TRUNCATED); // Occurs if mysql_stmt_fetch_column() must be called | |
| 63 | |
| 64 FetchFields(); | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 | |
| 69 IValue* MySQLResult::FetchField(size_t index) | |
| 70 { | |
| 71 return statement_.FetchResultField(index); | |
| 72 } | |
| 73 | |
| 74 | |
| 75 MySQLResult::MySQLResult(MySQLDatabase& db, | |
| 76 MySQLStatement& statement) : | |
| 77 database_(db), | |
| 78 statement_(statement) | |
| 79 { | |
| 80 // !!! https://dev.mysql.com/doc/refman/5.7/en/mysql-stmt-fetch.html | |
| 81 // https://gist.github.com/hoterran/6365915 | |
| 82 // https://github.com/hholzgra/connector-c-examples/blob/master/mysql_stmt_bind_result.c | |
| 83 | |
| 84 SetFieldsCount(statement_.GetResultFieldsCount()); | |
| 85 | |
| 86 Step(); | |
| 87 } | |
| 88 | |
| 89 | |
| 90 MySQLResult::~MySQLResult() | |
| 91 { | |
| 92 // Reset the statement for further use | |
| 93 if (mysql_stmt_reset(statement_.GetObject()) != 0) | |
| 94 { | |
| 95 LOG(ERROR) << "Cannot reset the statement, expect an error"; | |
| 96 } | |
| 97 } | |
| 98 | |
| 99 | |
| 100 void MySQLResult::Next() | |
| 101 { | |
| 102 if (IsDone()) | |
| 103 { | |
| 104 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 105 } | |
| 106 else | |
| 107 { | |
| 108 Step(); | |
| 109 } | |
| 110 } | |
| 111 } |