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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; under version 2 |
| 7 | * of the License (non-upgradable). |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 17 | * |
| 18 | * Copyright (c) 2016 (original work) Open Assessment Technologies SA ; |
| 19 | */ |
| 20 | |
| 21 | /** |
| 22 | * @author Jean-Sébastien Conan <jean-sebastien.conan@vesperiagroup.com> |
| 23 | */ |
| 24 | |
| 25 | namespace oat\taoTests\models\runner\time; |
| 26 | |
| 27 | /** |
| 28 | * Interface Timer |
| 29 | * |
| 30 | * Describes the API needed to build and manage a timer. |
| 31 | * A Timer is represented by a TimeLine on which it will apply actions and constraints. |
| 32 | * The actions are: |
| 33 | * - add time ranges by setting start and end TimePoints (SERVER) |
| 34 | * - adjust time ranges by settings intermediate start and end TimePoint (CLIENT) |
| 35 | * - compute duration for particular targets (SERVER or CLIENT) |
| 36 | * |
| 37 | * The constraints are: |
| 38 | * - coherence of time ranges |
| 39 | * - time limits and timeouts |
| 40 | * |
| 41 | * A timer is also responsible of its storage. |
| 42 | * |
| 43 | * @package oat\taoTests\models\runner\time |
| 44 | */ |
| 45 | interface Timer |
| 46 | { |
| 47 | /** |
| 48 | * Adds a "server start" TimePoint at a particular timestamp for the provided tags |
| 49 | * @param string|array $tags |
| 50 | * @param float $timestamp |
| 51 | * @return Timer |
| 52 | * @throws TimeException |
| 53 | */ |
| 54 | public function start($tags, $timestamp); |
| 55 | |
| 56 | /** |
| 57 | * Adds a "server end" TimePoint at a particular timestamp for the provided tags |
| 58 | * @param string|array $tags |
| 59 | * @param float $timestamp |
| 60 | * @return Timer |
| 61 | * @throws TimeException |
| 62 | */ |
| 63 | public function end($tags, $timestamp); |
| 64 | |
| 65 | /** |
| 66 | * Gets the first timestamp of the range for the provided tags |
| 67 | * @param string|array $tags |
| 68 | * @return float $timestamp |
| 69 | */ |
| 70 | public function getFirstTimestamp($tags); |
| 71 | |
| 72 | /** |
| 73 | * Gets the last timestamp of the range for the provided tags |
| 74 | * @param string|array $tags |
| 75 | * @return float $timestamp |
| 76 | */ |
| 77 | public function getLastTimestamp($tags); |
| 78 | |
| 79 | /** |
| 80 | * Adds "client start" and "client end" TimePoint based on the provided duration for particular tags |
| 81 | * @param string|array $tags |
| 82 | * @param float $duration |
| 83 | * @return Timer |
| 84 | * @throws TimeException |
| 85 | */ |
| 86 | public function adjust($tags, $duration); |
| 87 | |
| 88 | /** |
| 89 | * Computes the total duration represented by the filtered TimePoints |
| 90 | * @param string|array $tags A tag or a list of tags to filter |
| 91 | * @param int $target The type of target TimePoint to filter |
| 92 | * @return float Returns the total computed duration |
| 93 | * @throws TimeException |
| 94 | */ |
| 95 | public function compute($tags, $target); |
| 96 | |
| 97 | /** |
| 98 | * Checks if the duration of a TimeLine subset reached the timeout |
| 99 | * @param float $timeLimit The time limit against which compare the duration |
| 100 | * @param string|array $tags A tag or a list of tags to filter |
| 101 | * @param int $target The type of target TimePoint to filter |
| 102 | * @return bool Returns true if the timeout is reached |
| 103 | * @throws TimeException |
| 104 | */ |
| 105 | public function timeout($timeLimit, $tags, $target); |
| 106 | |
| 107 | /** |
| 108 | * Sets the storage used to maintain the data |
| 109 | * @param TimeStorage $storage |
| 110 | * @return Timer |
| 111 | */ |
| 112 | public function setStorage(TimeStorage $storage); |
| 113 | |
| 114 | /** |
| 115 | * @param TimerStrategyInterface $strategy |
| 116 | * @return Timer |
| 117 | */ |
| 118 | public function setStrategy(TimerStrategyInterface $strategy); |
| 119 | |
| 120 | /** |
| 121 | * Gets the storage used to maintain the data |
| 122 | * @return TimeStorage |
| 123 | */ |
| 124 | public function getStorage(); |
| 125 | |
| 126 | /** |
| 127 | * Saves the data to the storage |
| 128 | * @return Timer |
| 129 | * @throws \Exception if any error occurs |
| 130 | */ |
| 131 | public function save(); |
| 132 | |
| 133 | /** |
| 134 | * Loads the data from the storage |
| 135 | * @return Timer |
| 136 | * @throws \Exception if any error occurs |
| 137 | */ |
| 138 | public function load(); |
| 139 | |
| 140 | /** |
| 141 | * @return mixed |
| 142 | * @throws \Exception |
| 143 | */ |
| 144 | public function delete(); |
| 145 | } |