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<?php |
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/** |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* This software consists of voluntary contributions made by many individuals |
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* and is licensed under the LGPL. For more information please see |
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* <http://phing.info>. |
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*/ |
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namespace Phing\Task\System\Pdo; |
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use Phing\Io\Reader; |
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use Phing\Util\StringHelper; |
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/** |
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* Splits SQL source into queries using simple regular expressions. |
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* |
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* Extracted from PDOSQLExecTask::runStatements() |
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* |
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* @author Hans Lellelid <[email protected]> |
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* @author Alexey Borzov <[email protected]> |
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*/ |
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class DefaultPDOQuerySplitter extends PDOQuerySplitter |
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{ |
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/** |
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* Delimiter type, one of PDOSQLExecTask::DELIM_ROW or PDOSQLExecTask::DELIM_NORMAL. |
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* |
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* @var string |
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*/ |
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private $delimiterType; |
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/** |
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* Leftover SQL from previous line. |
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* |
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* @var string |
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*/ |
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private $sqlBacklog = ''; |
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/** |
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* Constructor, sets the parent task, reader with SQL source and delimiter type. |
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* |
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* @param string $delimiterType |
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*/ |
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public function __construct(PDOSQLExecTask $parent, Reader $reader, $delimiterType = PDOSQLExecTask::DELIM_NORMAL) |
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{ |
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parent::__construct($parent, $reader); |
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$this->delimiterType = $delimiterType; |
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} |
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/** |
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* Returns next query from SQL source, null if no more queries left. |
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* |
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* In case of "row" delimiter type this searches for strings containing only |
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* delimiters. In case of "normal" delimiter type, this uses simple regular |
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* expression logic to search for delimiters. |
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* |
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* @return null|string |
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*/ |
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public function nextQuery(): ?string |
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{ |
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3 |
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$sql = ''; |
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3 |
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$hasQuery = false; |
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3 |
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while (($line = $this->sqlReader->readLine()) !== null) { |
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$delimiter = $this->parent->getDelimiter(); |
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$project = $this->parent->getOwningTarget()->getProject(); |
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if (!$this->keepformat) { |
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$line = trim($line); |
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} |
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if ($this->expandProperties) { |
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$line = $project->replaceProperties($line); |
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} |
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if ( |
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!$this->keepformat |
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&& ($line !== $delimiter) |
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&& (StringHelper::startsWith('//', $line) |
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|| StringHelper::startsWith('--', $line) |
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|| StringHelper::startsWith('#', $line)) |
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) { |
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continue; |
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} |
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if ( |
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strlen($line) > 4 |
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&& stripos($line, 'REM ') === 0 |
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) { |
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continue; |
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} |
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// MySQL supports defining new delimiters |
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if (preg_match('/DELIMITER [\'"]?([^\'" $]+)[\'"]?/i', $line, $matches)) { |
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1 |
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$this->parent->setDelimiter($matches[1]); |
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1 |
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continue; |
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} |
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if ('' !== $this->sqlBacklog) { |
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$sql = $this->sqlBacklog; |
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$this->sqlBacklog = ''; |
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} |
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$sql .= ' ' . $line . "\n"; |
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// SQL defines "--" as a comment to EOL |
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// and in Oracle it may contain a hint |
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// so we cannot just remove it, instead we must end it |
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if (!$this->keepformat && false !== strpos((string) $line, '--')) { |
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$sql .= "\n"; |
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} |
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// DELIM_ROW doesn't need this (as far as i can tell) |
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if (PDOSQLExecTask::DELIM_NORMAL === $this->delimiterType) { |
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$reg = "#((?:\"(?:\\\\.|[^\"])*\"?)+|'(?:\\\\.|[^'])*'?|" . preg_quote($delimiter, null) . ')#'; |
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$sqlParts = preg_split($reg, $sql, 0, PREG_SPLIT_DELIM_CAPTURE); |
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$this->sqlBacklog = ''; |
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foreach ($sqlParts as $sqlPart) { |
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// we always want to append, even if it's a delim (which will be stripped off later) |
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$this->sqlBacklog .= $sqlPart; |
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// we found a single (not enclosed by ' or ") delimiter, so we can use all stuff before the delim as the actual query |
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if ($sqlPart === $delimiter) { |
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$sql = $this->sqlBacklog; |
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$this->sqlBacklog = ''; |
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$hasQuery = true; |
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} |
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} |
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} |
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if ($hasQuery || (PDOSQLExecTask::DELIM_ROW === $this->delimiterType && $line === $delimiter)) { |
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// this assumes there is always a delimter on the end of the SQL statement. |
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return StringHelper::substring( |
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$sql, |
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0, |
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strlen($sql) - strlen($delimiter) |
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- (PDOSQLExecTask::DELIM_ROW === $this->delimiterType ? 2 : 1) |
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); |
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} |
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} |
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// Catch any statements not followed by ; |
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3 |
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if ('' !== $sql) { |
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return $sql; |
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} |
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return null; |
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} |
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} |
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phingofficial /
phing
