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<?php
namespace Bitrix\Perfmon\Sql;
use Bitrix\Main\NotSupportedException;
//Sample usage:
/*
\Bitrix\Main\Loader::includeModule('perfmon');
$dir = new \Bitrix\Main\IO\Directory("/opt/php03.cp1251.www/mercurial/bitrix/modules");
foreach ($dir->getChildren() as $child)
{
if ($child->isDirectory() && $child->getName()!=='xxx')
{
echo $child->getName(),": ";
foreach (array("mysql"=>";", "mssql"=>"GO", "oracle"=>"/") as $db=>$delimiter)
{
$path = $child->getPath()."/install/db/$db/install.sql";
if (!\Bitrix\Main\IO\File::isFileExists($path))
$path = $child->getPath()."/install/$db/install.sql";
if (!\Bitrix\Main\IO\File::isFileExists($path))
continue;
//echo "<br>$path<br>";
$sql = \Bitrix\Main\IO\File::getFileContents($path);
$s = new \Bitrix\Perfmon\Sql\Schema;
$s->createFromString($sql, $delimiter);
// p r i n t _ r ($s->tables);
echo count($s->tables->getList())," ";
}
echo "\n";
}
}
*/
class Schema
{
/** @var Collection */
public $tables = null;
/** @var Collection */
public $procedures = null;
/** @var Collection */
public $sequences = null;
function __construct()
{
$this->tables = new Collection;
$this->procedures = new Collection;
$this->sequences = new Collection;
}
/**
* Fills database schema from DDL text.
*
* @param string $str DDL text.
* @param string $delimiter How to split DDL into statements.
*
* @return void
* @throws NotSupportedException
*/
public function createFromString($str, $delimiter)
{
$tokenizer = Tokenizer::createFromString($str);
foreach ($this->splitStatements($tokenizer, $delimiter) as $statement)
{
$this->executeStatement($statement);
}
}
/**
* Splits tokens array into bunch of individual DDL statements.
*
* @param Tokenizer $tokenizer Tokens container.
* @param string $delimiter How to split DDL into statements.
*
* @return array[Tokenizer]
*/
protected function splitStatements(Tokenizer $tokenizer, $delimiter = ';')
{
$result = array();
$index = 0;
$result[$index] = array();
/** @var Token $prevToken */
$prevToken = null;
/** @var Token $token */
foreach ($tokenizer->getTokens() as $token)
{
if (
$token->text === $delimiter
&& $prevToken
&& mb_strpos($prevToken->text, "\n") !== false
)
{
$index++;
$result[$index] = array();
}
elseif (
mb_strpos($token->text, "\n") !== false
&& $prevToken
&& $prevToken->text === $delimiter
)
{
array_pop($result[$index]);
$index++;
$result[$index] = array();
}
else
{
$result[$index][] = $token;
}
$prevToken = $token;
}
foreach ($result as $i => $tokens)
{
$result[$i] = Tokenizer::createFromTokens($tokens);
}
return $result;
}
/**
* Fills some schema part with information from one DDL statement.
*
* @param Tokenizer $tokenizer Statement tokens.
*
* @return void
* @throws NotSupportedException
*/
protected function executeStatement(Tokenizer $tokenizer)
{
/** @var Table $table */
$tokenizer->resetState();
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('CREATE'))
{
$this->executeCreate($tokenizer);
}
elseif ($tokenizer->testUpperText('INSERT'))
{
//skip insert into
}
elseif ($tokenizer->testUpperText('SET'))
{
//skip set identity_insert
}
elseif ($tokenizer->testUpperText('ALTER'))
{
$this->executeAlter($tokenizer);
}
elseif ($tokenizer->testUpperText('IF'))
{
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('OBJECT_ID'))
{
while (!$tokenizer->endOfInput())
{
if ($tokenizer->nextToken()->upper === 'CREATE')
break;
}
$tokenizer->nextToken();
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('TABLE'))
{
$this->executeCreateTable($tokenizer);
}
else
{
throw new NotSupportedException("'CREATE TABLE' expected. line:".$tokenizer->getCurrentToken()->line);
}
}
elseif ($tokenizer->testUpperText('NOT'))
{
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('EXISTS'))
{
while (!$tokenizer->endOfInput())
{
if ($tokenizer->nextToken()->upper === 'CREATE')
break;
}
$tokenizer->nextToken();
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('UNIQUE'))
{
$unique = true;
$tokenizer->skipWhiteSpace();
}
else
{
$unique = false;
}
if ($tokenizer->testUpperText('INDEX'))
{
$this->executeCreateIndex($tokenizer, $unique);
}
else
{
throw new NotSupportedException("'CREATE INDEX' expected. line:".$tokenizer->getCurrentToken()->line);
}
}
else
{
throw new NotSupportedException("'NOT EXISTS' expected. line:".$tokenizer->getCurrentToken()->line);
}
}
else
{
throw new NotSupportedException("'OBJECT_ID' expected. line:".$tokenizer->getCurrentToken()->line);
}
}
elseif (!$tokenizer->endOfInput())
{
throw new NotSupportedException("'CREATE' expected. line:".$tokenizer->getCurrentToken()->line);
}
}
/**
* @param Tokenizer $tokenizer Statement tokens.
*
* @return void
* @throws NotSupportedException
*/
protected function executeCreate(Tokenizer $tokenizer)
{
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText("OR"))
{
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText("REPLACE"))
$tokenizer->skipWhiteSpace();
else
throw new NotSupportedException("'OR REPLACE' expected. line:".$tokenizer->getCurrentToken()->line);
}
if ($tokenizer->testUpperText('TABLE'))
{
$this->executeCreateTable($tokenizer);
}
elseif ($tokenizer->testUpperText('INDEX'))
{
$this->executeCreateIndex($tokenizer, false);
}
elseif ($tokenizer->testUpperText('UNIQUE'))
{
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('INDEX'))
$tokenizer->skipWhiteSpace();
$this->executeCreateIndex($tokenizer, true);
}
elseif ($tokenizer->testUpperText('TRIGGER'))
{
$this->executeCreateTrigger($tokenizer);
}
elseif (
$tokenizer->testUpperText('PROCEDURE')
|| $tokenizer->testUpperText('FUNCTION')
|| $tokenizer->testUpperText('TYPE')
)
{
$this->executeCreateProcedure($tokenizer);
}
elseif ($tokenizer->testUpperText('SEQUENCE'))
{
$this->executeCreateSequence($tokenizer);
}
else
{
throw new NotSupportedException("TABLE|INDEX|UNIQUE|TRIGGER|PROCEDURE|FUNCTION|TYPE|SEQUENCE expected. line:".$tokenizer->getCurrentToken()->line);
}
}
/**
* @param Tokenizer $tokenizer Statement tokens.
*
* @return void
* @throws NotSupportedException
*/
protected function executeAlter(Tokenizer $tokenizer)
{
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('TABLE'))
{
$tokenizer->skipWhiteSpace();
$tableName = $tokenizer->getCurrentToken()->text;
/** @var Table $table */
$table = $this->tables->search($tableName);
if (!$table)
{
throw new NotSupportedException("Table [$tableName] not found. line: ".$tokenizer->getCurrentToken()->line);
}
$tokenizer->nextToken();
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('ADD'))
{
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('CONSTRAINT'))
{
$tokenizer->skipWhiteSpace();
$table->createConstraint($tokenizer);
}
}
elseif ($tokenizer->testUpperText('NOCHECK') || $tokenizer->testUpperText('CHECK'))
{
//(NOCHECK|CHECK) CONSTRAINT ALL
}
elseif ($tokenizer->testUpperText('DISABLE') || $tokenizer->testUpperText('ENABLE'))
{
//(DISABLE|ENABLE) TRIGGER ALL
}
else
{
throw new NotSupportedException("'ADD' expected. line:".$tokenizer->getCurrentToken()->line);
}
}
else
{
throw new NotSupportedException("'TABLE' expected. line:".$tokenizer->getCurrentToken()->line);
}
}
/**
* @param Tokenizer $tokenizer Statement tokens.
*
* @return void
* @throws NotSupportedException
*/
protected function executeCreateTable(Tokenizer $tokenizer)
{
$tokenizer->skipWhiteSpace();
$this->tables->add(Table::create($tokenizer));
}
/**
* @param Tokenizer $tokenizer Statement tokens.
* @param boolean $unique Index uniqueness flag.
*
* @return void
* @throws NotSupportedException
*/
protected function executeCreateIndex(Tokenizer $tokenizer, $unique)
{
$tokenizer->skipWhiteSpace();
$tokenizer->setBookmark();
Index::searchTableName($tokenizer);
$tableName = $tokenizer->getCurrentToken()->text;
/** @var Table $table */
$table = $this->tables->search($tableName);
if (!$table)
{
throw new NotSupportedException("Table [$tableName] not found. line: ".$tokenizer->getCurrentToken()->line);
}
$tokenizer->restoreBookmark();
$table->createIndex($tokenizer, $unique);
}
/**
* @param Tokenizer $tokenizer Statement tokens.
*
* @return void
* @throws NotSupportedException
*/
protected function executeCreateTrigger(Tokenizer $tokenizer)
{
$tokenizer->skipWhiteSpace();
$tokenizer->setBookmark();
Trigger::searchTableName($tokenizer);
$tableName = $tokenizer->getCurrentToken()->text;
/** @var Table $table */
$table = $this->tables->search($tableName);
if (!$table)
{
throw new NotSupportedException("Table [$tableName] not found. line: ".$tokenizer->getCurrentToken()->line);
}
$tokenizer->restoreBookmark();
$table->createTrigger($tokenizer);
}
/**
* @param Tokenizer $tokenizer Statement tokens.
*
* @return void
* @throws NotSupportedException
*/
protected function executeCreateProcedure(Tokenizer $tokenizer)
{
$tokenizer->putBack();
$this->procedures->add(Procedure::create($tokenizer));
}
/**
* @param Tokenizer $tokenizer Statement tokens.
*
* @return void
* @throws NotSupportedException
*/
protected function executeCreateSequence(Tokenizer $tokenizer)
{
$tokenizer->skipWhiteSpace();
$this->sequences->add(Sequence::create($tokenizer));
}
}