' . "\n";
foreach (PMA_StorageEngine::getStorageEngines() as $key => $details) {
if (!$offerUnavailableEngines
&& ($details['Support'] == 'NO' || $details['Support'] == 'DISABLED')) {
continue;
}
$output .= ' ' . "\n";
}
$output .= '' . "\n";
return $output;
}
/**
* returns array of storage engines for MySQL < 4.1, hard coded
* Emulating SHOW STORAGE ENGINES...
*
* @static
* @access public
* @uses PMA_DBI_query()
* @uses PMA_DBI_fetch_row()
* @uses PMA_DBI_free_result()
* @uses substr()
* @return array of storage engines
*/
static protected function _getStorageEnginesBefore40102()
{
$storage_engines = array(
'myisam' => array(
'Engine' => 'MyISAM',
'Support' => 'DEFAULT'
),
'merge' => array(
'Engine' => 'MERGE',
'Support' => 'YES'
),
'heap' => array(
'Engine' => 'HEAP',
'Support' => 'YES'
),
'memory' => array(
'Engine' => 'MEMORY',
'Support' => 'YES'
)
);
$known_engines = array(
'archive' => 'ARCHIVE',
'bdb' => 'BDB',
'csv' => 'CSV',
'innodb' => 'InnoDB',
'isam' => 'ISAM',
'gemini' => 'Gemini'
);
$res = PMA_DBI_query('SHOW VARIABLES LIKE \'have\\_%\';');
while ($row = PMA_DBI_fetch_row($res)) {
$current = substr($row[0], 5);
if (! empty($known_engines[$current])) {
$storage_engines[$current] = array(
'Engine' => $known_engines[$current],
'Support' => $row[1]
);
}
}
PMA_DBI_free_result($res);
return $storage_engines;
}
/**
* public static final PMA_StorageEngine getEngine()
*
* Loads the corresponding engine plugin, if available.
*
* @uses str_replace()
* @uses file_exists()
* @uses PMA_StorageEngine
* @param string $engine The engine ID
* @return object The engine plugin
*/
static public function getEngine($engine)
{
$engine = str_replace('/', '', str_replace('.', '', $engine));
$engine_lowercase_filename = strtolower($engine);
if (file_exists('./libraries/engines/' . $engine_lowercase_filename . '.lib.php')
&& include_once './libraries/engines/' . $engine_lowercase_filename . '.lib.php') {
$class_name = 'PMA_StorageEngine_' . $engine;
$engine_object = new $class_name($engine);
} else {
$engine_object = new PMA_StorageEngine($engine);
}
return $engine_object;
}
/**
* return true if given engine name is supported/valid, otherwise false
*
* @static
* @uses PMA_StorageEngine::getStorageEngines()
* @param string $engine name of engine
* @reutrn boolean whether $engine is valid or not
*/
static public function isValid($engine)
{
$storage_engines = PMA_StorageEngine::getStorageEngines();
return isset($storage_engines[$engine]);
}
/**
* returns as HTML table of the engine's server variables
*
* @uses PMA_ENGINE_DETAILS_TYPE_SIZE
* @uses PMA_ENGINE_DETAILS_TYPE_NUMERIC
* @uses PMA_StorageEngine::getVariablesStatus()
* @uses $GLOBALS['strNoDetailsForEngine']
* @uses PMA_showHint()
* @uses PMA_formatByteDown()
* @uses PMA_formatNumber()
* @uses htmlspecialchars()
* @return string The table that was generated based on the retrieved information
*/
function getHtmlVariables()
{
$odd_row = false;
$ret = '';
foreach ($this->getVariablesStatus() as $details) {
$ret .= '' . "\n"
. ' | ' . "\n";
if (!empty($details['desc'])) {
$ret .= ' ' . PMA_showHint($details['desc']) . "\n";
}
$ret .= ' | ' . "\n"
. ' ' . htmlspecialchars($details['title']) . ' | ' . "\n"
. ' ';
switch ($details['type']) {
case PMA_ENGINE_DETAILS_TYPE_SIZE:
$parsed_size = PMA_formatByteDown($details['value']);
$ret .= $parsed_size[0] . ' ' . $parsed_size[1];
unset($parsed_size);
break;
case PMA_ENGINE_DETAILS_TYPE_NUMERIC:
$ret .= PMA_formatNumber($details['value']) . ' ';
break;
default:
$ret .= htmlspecialchars($details['value']) . ' ';
}
$ret .= ' | ' . "\n"
. '
' . "\n";
$odd_row = !$odd_row;
}
if (! $ret) {
$ret = '' . "\n"
. ' ' . $GLOBALS['strNoDetailsForEngine'] . "\n"
. '
' . "\n";
} else {
$ret = '' . "\n";
}
return $ret;
}
/**
* returns array with detailed info about engine specific server variables
*
* @uses PMA_ENGINE_DETAILS_TYPE_PLAINTEXT
* @uses PMA_StorageEngine::getVariables()
* @uses PMA_StorageEngine::getVariablesLikePattern()
* @uses PMA_MYSQL_INT_VERSION
* @uses PMA_DBI_query()
* @uses PMA_DBI_fetch_assoc()
* @uses PMA_DBI_free_result()
* @return array with detailed info about specific engine server variables
*/
function getVariablesStatus()
{
$variables = $this->getVariables();
$like = $this->getVariablesLikePattern();
if ($like) {
$like = " LIKE '" . $like . "' ";
} else {
$like = '';
}
if (PMA_MYSQL_INT_VERSION >= 40102) {
$global = ' GLOBAL ';
} else {
$global = '';
}
$mysql_vars = array();
$sql_query = 'SHOW ' . $global . ' VARIABLES ' . $like . ';';
$res = PMA_DBI_query($sql_query);
while ($row = PMA_DBI_fetch_assoc($res)) {
if (isset($variables[$row['Variable_name']])) {
$mysql_vars[$row['Variable_name']] = $variables[$row['Variable_name']];
} elseif (! $like
&& strpos(strtolower($row['Variable_name']), strtolower($this->engine)) !== 0) {
continue;
}
$mysql_vars[$row['Variable_name']]['value'] = $row['Value'];
if (empty($mysql_vars[$row['Variable_name']]['title'])) {
$mysql_vars[$row['Variable_name']]['title'] = $row['Variable_name'];
}
if (! isset($mysql_vars[$row['Variable_name']]['type'])) {
$mysql_vars[$row['Variable_name']]['type'] = PMA_ENGINE_DETAILS_TYPE_PLAINTEXT;
}
}
PMA_DBI_free_result($res);
return $mysql_vars;
}
/**
* Constructor
*
* @uses PMA_StorageEngine::getStorageEngines()
* @uses PMA_ENGINE_SUPPORT_DEFAULT
* @uses PMA_ENGINE_SUPPORT_YES
* @uses PMA_ENGINE_SUPPORT_DISABLED
* @uses PMA_ENGINE_SUPPORT_NO
* @uses $this->engine
* @uses $this->title
* @uses $this->comment
* @uses $this->support
* @param string $engine The engine ID
*/
function __construct($engine)
{
$storage_engines = PMA_StorageEngine::getStorageEngines();
if (!empty($storage_engines[$engine])) {
$this->engine = $engine;
$this->title = $storage_engines[$engine]['Engine'];
$this->comment =
(isset($storage_engines[$engine]['Comment'])
? $storage_engines[$engine]['Comment']
: '');
switch ($storage_engines[$engine]['Support']) {
case 'DEFAULT':
$this->support = PMA_ENGINE_SUPPORT_DEFAULT;
break;
case 'YES':
$this->support = PMA_ENGINE_SUPPORT_YES;
break;
case 'DISABLED':
$this->support = PMA_ENGINE_SUPPORT_DISABLED;
break;
case 'NO':
default:
$this->support = PMA_ENGINE_SUPPORT_NO;
}
}
}
/**
* public String getTitle()
*
* Reveals the engine's title
* @uses $this->title
* @return string The title
*/
function getTitle()
{
return $this->title;
}
/**
* public String getComment()
*
* Fetches the server's comment about this engine
* @uses $this->comment
* @return string The comment
*/
function getComment()
{
return $this->comment;
}
/**
* public String getSupportInformationMessage()
*
* @uses $GLOBALS['strDefaultEngine']
* @uses $GLOBALS['strEngineAvailable']
* @uses $GLOBALS['strEngineDisabled']
* @uses $GLOBALS['strEngineUnsupported']
* @uses $GLOBALS['strEngineUnsupported']
* @uses PMA_ENGINE_SUPPORT_DEFAULT
* @uses PMA_ENGINE_SUPPORT_YES
* @uses PMA_ENGINE_SUPPORT_DISABLED
* @uses PMA_ENGINE_SUPPORT_NO
* @uses $this->support
* @uses $this->title
* @uses sprintf
* @return string The localized message.
*/
function getSupportInformationMessage()
{
switch ($this->support) {
case PMA_ENGINE_SUPPORT_DEFAULT:
$message = $GLOBALS['strDefaultEngine'];
break;
case PMA_ENGINE_SUPPORT_YES:
$message = $GLOBALS['strEngineAvailable'];
break;
case PMA_ENGINE_SUPPORT_DISABLED:
$message = $GLOBALS['strEngineDisabled'];
break;
case PMA_ENGINE_SUPPORT_NO:
default:
$message = $GLOBALS['strEngineUnsupported'];
}
return sprintf($message, htmlspecialchars($this->title));
}
/**
* public string[][] getVariables()
*
* Generates a list of MySQL variables that provide information about this
* engine. This function should be overridden when extending this class
* for a particular engine.
*
* @abstract
* @return Array The list of variables.
*/
function getVariables()
{
return array();
}
/**
* returns string with filename for the MySQL helppage
* about this storage engne
*
* @return string mysql helppage filename
*/
function getMysqlHelpPage()
{
return $this->engine . '-storage-engine';
}
/**
* public string getVariablesLikePattern()
*
* @abstract
* @return string SQL query LIKE pattern
*/
function getVariablesLikePattern()
{
return false;
}
/**
* public String[] getInfoPages()
*
* Returns a list of available information pages with labels
*
* @abstract
* @return array The list
*/
function getInfoPages()
{
return array();
}
/**
* public String getPage()
*
* Generates the requested information page
*
* @abstract
* @param string $id The page ID
*
* @return string The page
* boolean or false on error.
*/
function getPage($id)
{
return false;
}
}
?>