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Diffstat (limited to 'library/vendor/Zend/Db/Profiler.php')
| -rw-r--r-- | library/vendor/Zend/Db/Profiler.php | 469 |
1 files changed, 469 insertions, 0 deletions
diff --git a/library/vendor/Zend/Db/Profiler.php b/library/vendor/Zend/Db/Profiler.php new file mode 100644 index 0000000..c80ec5d --- /dev/null +++ b/library/vendor/Zend/Db/Profiler.php @@ -0,0 +1,469 @@ +<?php +/** + * Zend Framework + * + * LICENSE + * + * This source file is subject to the new BSD license that is bundled + * with this package in the file LICENSE.txt. + * It is also available through the world-wide-web at this URL: + * http://framework.zend.com/license/new-bsd + * If you did not receive a copy of the license and are unable to + * obtain it through the world-wide-web, please send an email + * to license@zend.com so we can send you a copy immediately. + * + * @category Zend + * @package Zend_Db + * @subpackage Profiler + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + * @version $Id$ + */ + + +/** + * @category Zend + * @package Zend_Db + * @subpackage Profiler + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + */ +class Zend_Db_Profiler +{ + + /** + * A connection operation or selecting a database. + */ + const CONNECT = 1; + + /** + * Any general database query that does not fit into the other constants. + */ + const QUERY = 2; + + /** + * Adding new data to the database, such as SQL's INSERT. + */ + const INSERT = 4; + + /** + * Updating existing information in the database, such as SQL's UPDATE. + * + */ + const UPDATE = 8; + + /** + * An operation related to deleting data in the database, + * such as SQL's DELETE. + */ + const DELETE = 16; + + /** + * Retrieving information from the database, such as SQL's SELECT. + */ + const SELECT = 32; + + /** + * Transactional operation, such as start transaction, commit, or rollback. + */ + const TRANSACTION = 64; + + /** + * Inform that a query is stored (in case of filtering) + */ + const STORED = 'stored'; + + /** + * Inform that a query is ignored (in case of filtering) + */ + const IGNORED = 'ignored'; + + /** + * Array of Zend_Db_Profiler_Query objects. + * + * @var array + */ + protected $_queryProfiles = array(); + + /** + * Stores enabled state of the profiler. If set to False, calls to + * queryStart() will simply be ignored. + * + * @var boolean + */ + protected $_enabled = false; + + /** + * Stores the number of seconds to filter. NULL if filtering by time is + * disabled. If an integer is stored here, profiles whose elapsed time + * is less than this value in seconds will be unset from + * the self::$_queryProfiles array. + * + * @var integer + */ + protected $_filterElapsedSecs = null; + + /** + * Logical OR of any of the filter constants. NULL if filtering by query + * type is disable. If an integer is stored here, it is the logical OR of + * any of the query type constants. When the query ends, if it is not + * one of the types specified, it will be unset from the + * self::$_queryProfiles array. + * + * @var integer + */ + protected $_filterTypes = null; + + /** + * Class constructor. The profiler is disabled by default unless it is + * specifically enabled by passing in $enabled here or calling setEnabled(). + * + * @param boolean $enabled + * @return void + */ + public function __construct($enabled = false) + { + $this->setEnabled($enabled); + } + + /** + * Enable or disable the profiler. If $enable is false, the profiler + * is disabled and will not log any queries sent to it. + * + * @param boolean $enable + * @return Zend_Db_Profiler Provides a fluent interface + */ + public function setEnabled($enable) + { + $this->_enabled = (boolean) $enable; + + return $this; + } + + /** + * Get the current state of enable. If True is returned, + * the profiler is enabled. + * + * @return boolean + */ + public function getEnabled() + { + return $this->_enabled; + } + + /** + * Sets a minimum number of seconds for saving query profiles. If this + * is set, only those queries whose elapsed time is equal or greater than + * $minimumSeconds will be saved. To save all queries regardless of + * elapsed time, set $minimumSeconds to null. + * + * @param integer $minimumSeconds OPTIONAL + * @return Zend_Db_Profiler Provides a fluent interface + */ + public function setFilterElapsedSecs($minimumSeconds = null) + { + if (null === $minimumSeconds) { + $this->_filterElapsedSecs = null; + } else { + $this->_filterElapsedSecs = (integer) $minimumSeconds; + } + + return $this; + } + + /** + * Returns the minimum number of seconds for saving query profiles, or null if + * query profiles are saved regardless of elapsed time. + * + * @return integer|null + */ + public function getFilterElapsedSecs() + { + return $this->_filterElapsedSecs; + } + + /** + * Sets the types of query profiles to save. Set $queryType to one of + * the Zend_Db_Profiler::* constants to only save profiles for that type of + * query. To save more than one type, logical OR them together. To + * save all queries regardless of type, set $queryType to null. + * + * @param integer $queryTypes OPTIONAL + * @return Zend_Db_Profiler Provides a fluent interface + */ + public function setFilterQueryType($queryTypes = null) + { + $this->_filterTypes = $queryTypes; + + return $this; + } + + /** + * Returns the types of query profiles saved, or null if queries are saved regardless + * of their types. + * + * @return integer|null + * @see Zend_Db_Profiler::setFilterQueryType() + */ + public function getFilterQueryType() + { + return $this->_filterTypes; + } + + /** + * Clears the history of any past query profiles. This is relentless + * and will even clear queries that were started and may not have + * been marked as ended. + * + * @return Zend_Db_Profiler Provides a fluent interface + */ + public function clear() + { + $this->_queryProfiles = array(); + + return $this; + } + + /** + * Clone a profiler query + * + * @param Zend_Db_Profiler_Query $query + * @return integer or null + */ + public function queryClone(Zend_Db_Profiler_Query $query) + { + $this->_queryProfiles[] = clone $query; + + end($this->_queryProfiles); + + return key($this->_queryProfiles); + } + + /** + * Starts a query. Creates a new query profile object (Zend_Db_Profiler_Query) + * and returns the "query profiler handle". Run the query, then call + * queryEnd() and pass it this handle to make the query as ended and + * record the time. If the profiler is not enabled, this takes no + * action and immediately returns null. + * + * @param string $queryText SQL statement + * @param integer $queryType OPTIONAL Type of query, one of the Zend_Db_Profiler::* constants + * @return integer|null + */ + public function queryStart($queryText, $queryType = null) + { + if (!$this->_enabled) { + return null; + } + + // make sure we have a query type + if (null === $queryType) { + switch (strtolower(substr(ltrim($queryText), 0, 6))) { + case 'insert': + $queryType = self::INSERT; + break; + case 'update': + $queryType = self::UPDATE; + break; + case 'delete': + $queryType = self::DELETE; + break; + case 'select': + $queryType = self::SELECT; + break; + default: + $queryType = self::QUERY; + break; + } + } + + /** + * @see Zend_Db_Profiler_Query + */ + $this->_queryProfiles[] = new Zend_Db_Profiler_Query($queryText, $queryType); + + end($this->_queryProfiles); + + return key($this->_queryProfiles); + } + + /** + * Ends a query. Pass it the handle that was returned by queryStart(). + * This will mark the query as ended and save the time. + * + * @param integer $queryId + * @throws Zend_Db_Profiler_Exception + * @return string Inform that a query is stored or ignored. + */ + public function queryEnd($queryId) + { + // Don't do anything if the Zend_Db_Profiler is not enabled. + if (!$this->_enabled) { + return self::IGNORED; + } + + // Check for a valid query handle. + if (!isset($this->_queryProfiles[$queryId])) { + /** + * @see Zend_Db_Profiler_Exception + */ + throw new Zend_Db_Profiler_Exception("Profiler has no query with handle '$queryId'."); + } + + $qp = $this->_queryProfiles[$queryId]; + + // Ensure that the query profile has not already ended + if ($qp->hasEnded()) { + /** + * @see Zend_Db_Profiler_Exception + */ + throw new Zend_Db_Profiler_Exception("Query with profiler handle '$queryId' has already ended."); + } + + // End the query profile so that the elapsed time can be calculated. + $qp->end(); + + /** + * If filtering by elapsed time is enabled, only keep the profile if + * it ran for the minimum time. + */ + if (null !== $this->_filterElapsedSecs && $qp->getElapsedSecs() < $this->_filterElapsedSecs) { + unset($this->_queryProfiles[$queryId]); + return self::IGNORED; + } + + /** + * If filtering by query type is enabled, only keep the query if + * it was one of the allowed types. + */ + if (null !== $this->_filterTypes && !($qp->getQueryType() & $this->_filterTypes)) { + unset($this->_queryProfiles[$queryId]); + return self::IGNORED; + } + + return self::STORED; + } + + /** + * Get a profile for a query. Pass it the same handle that was returned + * by queryStart() and it will return a Zend_Db_Profiler_Query object. + * + * @param integer $queryId + * @throws Zend_Db_Profiler_Exception + * @return Zend_Db_Profiler_Query + */ + public function getQueryProfile($queryId) + { + if (!array_key_exists($queryId, $this->_queryProfiles)) { + /** + * @see Zend_Db_Profiler_Exception + */ + throw new Zend_Db_Profiler_Exception("Query handle '$queryId' not found in profiler log."); + } + + return $this->_queryProfiles[$queryId]; + } + + /** + * Get an array of query profiles (Zend_Db_Profiler_Query objects). If $queryType + * is set to one of the Zend_Db_Profiler::* constants then only queries of that + * type will be returned. Normally, queries that have not yet ended will + * not be returned unless $showUnfinished is set to True. If no + * queries were found, False is returned. The returned array is indexed by the query + * profile handles. + * + * @param integer $queryType + * @param boolean $showUnfinished + * @return array|false + */ + public function getQueryProfiles($queryType = null, $showUnfinished = false) + { + $queryProfiles = array(); + foreach ($this->_queryProfiles as $key => $qp) { + if ($queryType === null) { + $condition = true; + } else { + $condition = ($qp->getQueryType() & $queryType); + } + + if (($qp->hasEnded() || $showUnfinished) && $condition) { + $queryProfiles[$key] = $qp; + } + } + + if (empty($queryProfiles)) { + $queryProfiles = false; + } + + return $queryProfiles; + } + + /** + * Get the total elapsed time (in seconds) of all of the profiled queries. + * Only queries that have ended will be counted. If $queryType is set to + * one or more of the Zend_Db_Profiler::* constants, the elapsed time will be calculated + * only for queries of the given type(s). + * + * @param integer $queryType OPTIONAL + * @return float + */ + public function getTotalElapsedSecs($queryType = null) + { + $elapsedSecs = 0; + foreach ($this->_queryProfiles as $key => $qp) { + if (null === $queryType) { + $condition = true; + } else { + $condition = ($qp->getQueryType() & $queryType); + } + if (($qp->hasEnded()) && $condition) { + $elapsedSecs += $qp->getElapsedSecs(); + } + } + return $elapsedSecs; + } + + /** + * Get the total number of queries that have been profiled. Only queries that have ended will + * be counted. If $queryType is set to one of the Zend_Db_Profiler::* constants, only queries of + * that type will be counted. + * + * @param integer $queryType OPTIONAL + * @return integer + */ + public function getTotalNumQueries($queryType = null) + { + if (null === $queryType) { + return count($this->_queryProfiles); + } + + $numQueries = 0; + foreach ($this->_queryProfiles as $qp) { + if ($qp->hasEnded() && ($qp->getQueryType() & $queryType)) { + $numQueries++; + } + } + + return $numQueries; + } + + /** + * Get the Zend_Db_Profiler_Query object for the last query that was run, regardless if it has + * ended or not. If the query has not ended, its end time will be null. If no queries have + * been profiled, false is returned. + * + * @return Zend_Db_Profiler_Query|false + */ + public function getLastQueryProfile() + { + if (empty($this->_queryProfiles)) { + return false; + } + + end($this->_queryProfiles); + + return current($this->_queryProfiles); + } + +} + |