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<?php
/*
* $Id: CreoleSQLExecTask.php 1084 2011-05-06 09:55:25Z mrook $
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information please see
* <http://phing.info>.
*/
require_once 'phing/tasks/ext/creole/CreoleTask.php';
include_once 'phing/system/io/StringReader.php';
/**
* Executes a series of SQL statements on a database using Creole.
*
* <p>Statements can
* either be read in from a text file using the <i>src</i> attribute or from
* between the enclosing SQL tags.</p>
*
* <p>Multiple statements can be provided, separated by semicolons (or the
* defined <i>delimiter</i>). Individual lines within the statements can be
* commented using either --, // or REM at the start of the line.</p>
*
* <p>The <i>autocommit</i> attribute specifies whether auto-commit should be
* turned on or off whilst executing the statements. If auto-commit is turned
* on each statement will be executed and committed. If it is turned off the
* statements will all be executed as one transaction.</p>
*
* <p>The <i>onerror</i> attribute specifies how to proceed when an error occurs
* during the execution of one of the statements.
* The possible values are: <b>continue</b> execution, only show the error;
* <b>stop</b> execution and commit transaction;
* and <b>abort</b> execution and transaction and fail task.</p>
*
* @author Hans Lellelid <hans@xmpl.org> (Phing)
* @author Jeff Martin <jeff@custommonkey.org> (Ant)
* @author Michael McCallum <gholam@xtra.co.nz> (Ant)
* @author Tim Stephenson <tim.stephenson@sybase.com> (Ant)
* @package phing.tasks.ext.creole
* @version $Revision: 1084 $
*/
class CreoleSQLExecTask extends CreoleTask {
private $goodSql = 0;
private $totalSql = 0;
const DELIM_ROW = "row";
const DELIM_NORMAL = "normal";
/**
* Database connection
*/
private $conn = null;
/**
* files to load
*/
private $filesets = array();
/**
* all filterchains objects assigned to this task
*/
private $filterChains = array();
/**
* SQL statement
*/
private $statement = null;
/**
* SQL input file
*/
private $srcFile = null;
/**
* SQL input command
*/
private $sqlCommand = "";
/**
* SQL transactions to perform
*/
private $transactions = array();
/**
* SQL Statement delimiter
*/
private $delimiter = ";";
/**
* The delimiter type indicating whether the delimiter will
* only be recognized on a line by itself
*/
private $delimiterType = "normal"; // can't use constant just defined
/**
* Print SQL results.
*/
private $print = false;
/**
* Print header columns.
*/
private $showheaders = true;
/**
* Results Output file.
*/
private $output = null;
/**
* Action to perform if an error is found
**/
private $onError = "abort";
/**
* Encoding to use when reading SQL statements from a file
*/
private $encoding = null;
/**
* Append to an existing file or overwrite it?
*/
private $append = false;
/**
* Set the name of the SQL file to be run.
* Required unless statements are enclosed in the build file
*/
public function setSrc(PhingFile $srcFile) {
$this->srcFile = $srcFile;
}
/**
* Set an inline SQL command to execute.
* NB: Properties are not expanded in this text.
*/
public function addText($sql) {
$this->sqlCommand .= $sql;
}
/**
* Adds a set of files (nested fileset attribute).
*/
public function addFileset(FileSet $set) {
$this->filesets[] = $set;
}
/**
* Creates a filterchain
*
* @access public
* @return object The created filterchain object
*/
function createFilterChain() {
$num = array_push($this->filterChains, new FilterChain($this->project));
return $this->filterChains[$num-1];
}
/**
* Add a SQL transaction to execute
*/
public function createTransaction() {
$t = new SQLExecTransaction($this);
$this->transactions[] = $t;
return $t;
}
/**
* Set the file encoding to use on the SQL files read in
*
* @param encoding the encoding to use on the files
*/
public function setEncoding($encoding) {
$this->encoding = $encoding;
}
/**
* Set the statement delimiter.
*
* <p>For example, set this to "go" and delimitertype to "ROW" for
* Sybase ASE or MS SQL Server.</p>
*
* @param delimiter
*/
public function setDelimiter($delimiter)
{
$this->delimiter = $delimiter;
}
/**
* Set the Delimiter type for this sql task. The delimiter type takes two
* values - normal and row. Normal means that any occurence of the delimiter
* terminate the SQL command whereas with row, only a line containing just
* the delimiter is recognized as the end of the command.
*
* @param string $delimiterType
*/
public function setDelimiterType($delimiterType)
{
$this->delimiterType = $delimiterType;
}
/**
* Set the print flag.
*
* @param boolean $print
*/
public function setPrint($print)
{
$this->print = (boolean) $print;
}
/**
* Print headers for result sets from the
* statements; optional, default true.
* @param boolean $showheaders
*/
public function setShowheaders($showheaders) {
$this->showheaders = (boolean) $showheaders;
}
/**
* Set the output file;
* optional, defaults to the console.
* @param PhingFile $output
*/
public function setOutput(PhingFile $output) {
$this->output = $output;
}
/**
* whether output should be appended to or overwrite
* an existing file. Defaults to false.
* @param $append
*/
public function setAppend($append) {
$this->append = (boolean) $append;
}
/**
* Action to perform when statement fails: continue, stop, or abort
* optional; default "abort"
*/
public function setOnerror($action) {
$this->onError = $action;
}
/**
* Load the sql file and then execute it
* @throws BuildException
*/
public function main() {
$savedTransaction = array();
for($i=0,$size=count($this->transactions); $i < $size; $i++) {
$savedTransaction[] = clone $this->transactions[$i];
}
$savedSqlCommand = $this->sqlCommand;
$this->sqlCommand = trim($this->sqlCommand);
try {
if ($this->srcFile === null && $this->sqlCommand === ""
&& empty($this->filesets)) {
if (count($this->transactions) === 0) {
throw new BuildException("Source file or fileset, "
. "transactions or sql statement "
. "must be set!", $this->location);
}
}
if ($this->srcFile !== null && !$this->srcFile->exists()) {
throw new BuildException("Source file does not exist!", $this->location);
}
// deal with the filesets
for ($i = 0,$size=count($this->filesets); $i < $size; $i++) {
$fs = $this->filesets[$i];
$ds = $fs->getDirectoryScanner($this->project);
$srcDir = $fs->getDir($this->project);
$srcFiles = $ds->getIncludedFiles();
// Make a transaction for each file
for ($j=0, $size=count($srcFiles); $j < $size; $j++) {
$t = $this->createTransaction();
$t->setSrc(new PhingFile($srcDir, $srcFiles[$j]));
}
}
// Make a transaction group for the outer command
$t = $this->createTransaction();
if ($this->srcFile) $t->setSrc($this->srcFile);
$t->addText($this->sqlCommand);
$this->conn = $this->getConnection();
try {
$this->statement = $this->conn->createStatement();
$out = null;
try {
if ($this->output !== null) {
$this->log("Opening output file " . $this->output, Project::MSG_VERBOSE);
$out = new BufferedWriter(new FileWriter($this->output->getAbsolutePath(), $this->append));
}
// Process all transactions
for ($i=0,$size=count($this->transactions); $i < $size; $i++) {
$this->transactions[$i]->runTransaction($out);
if (!$this->isAutocommit()) {
$this->log("Commiting transaction", Project::MSG_VERBOSE);
$this->conn->commit();
}
}
if ($out) $out->close();
} catch (Exception $e) {
if ($out) $out->close();
throw $e;
}
} catch (IOException $e) {
if (!$this->isAutocommit() && $this->conn !== null && $this->onError == "abort") {
try {
$this->conn->rollback();
} catch (SQLException $ex) {}
}
throw new BuildException($e->getMessage(), $this->location);
} catch (SQLException $e){
if (!$this->isAutocommit() && $this->conn !== null && $this->onError == "abort") {
try {
$this->conn->rollback();
} catch (SQLException $ex) {}
}
throw new BuildException($e->getMessage(), $this->location);
}
$this->log($this->goodSql . " of " . $this->totalSql .
" SQL statements executed successfully");
} catch (Exception $e) {
$this->transactions = $savedTransaction;
$this->sqlCommand = $savedSqlCommand;
throw $e;
}
// finally {
$this->transactions = $savedTransaction;
$this->sqlCommand = $savedSqlCommand;
}
/**
* read in lines and execute them
* @throws SQLException, IOException
*/
public function runStatements(Reader $reader, $out = null) {
$sql = "";
$line = "";
$buffer = '';
if ((is_array($this->filterChains)) && (!empty($this->filterChains))) {
$in = FileUtils::getChainedReader(new BufferedReader($reader), $this->filterChains, $this->getProject());
while(-1 !== ($read = $in->read())) { // -1 indicates EOF
$buffer .= $read;
}
$lines = explode("\n", $buffer);
} else {
$in = new BufferedReader($reader);
while (($line = $in->readLine()) !== null) {
$lines[] = $line;
}
}
try {
foreach ($lines as $line) {
$line = trim($line);
$line = ProjectConfigurator::replaceProperties($this->project, $line,
$this->project->getProperties());
if (StringHelper::startsWith("//", $line) ||
StringHelper::startsWith("--", $line) ||
StringHelper::startsWith("#", $line)) {
continue;
}
if (strlen($line) > 4
&& strtoupper(substr($line,0, 4)) == "REM ") {
continue;
}
$sql .= " " . $line;
$sql = trim($sql);
// SQL defines "--" as a comment to EOL
// and in Oracle it may contain a hint
// so we cannot just remove it, instead we must end it
if (strpos($line, "--") !== false) {
$sql .= "\n";
}
if ($this->delimiterType == self::DELIM_NORMAL
&& StringHelper::endsWith($this->delimiter, $sql)
|| $this->delimiterType == self::DELIM_ROW
&& $line == $this->delimiter) {
$this->log("SQL: " . $sql, Project::MSG_VERBOSE);
$this->execSQL(StringHelper::substring($sql, 0, strlen($sql) - strlen($this->delimiter)), $out);
$sql = "";
}
}
// Catch any statements not followed by ;
if ($sql !== "") {
$this->execSQL($sql, $out);
}
} catch (SQLException $e) {
throw new BuildException("Error running statements", $e);
}
}
/**
* Exec the sql statement.
* @throws SQLException
*/
protected function execSQL($sql, $out = null) {
// Check and ignore empty statements
if (trim($sql) == "") {
return;
}
try {
$this->totalSql++;
if (!$this->statement->execute($sql)) {
$this->log($this->statement->getUpdateCount() . " rows affected", Project::MSG_VERBOSE);
} else {
if ($this->print) {
$this->printResults($out);
}
}
$this->goodSql++;
} catch (SQLException $e) {
$this->log("Failed to execute: " . $sql, Project::MSG_ERR);
if ($this->onError != "continue") {
throw new BuildException("Failed to execute SQL", $e);
}
$this->log($e->getMessage(), Project::MSG_ERR);
}
}
/**
* print any results in the statement.
* @throws SQLException
*/
protected function printResults($out = null) {
$rs = null;
do {
$rs = $this->statement->getResultSet();
if ($rs !== null) {
$this->log("Processing new result set.", Project::MSG_VERBOSE);
$line = "";
$colsprinted = false;
while ($rs->next()) {
$fields = $rs->getRow();
if (!$colsprinted && $this->showheaders) {
$first = true;
foreach($fields as $fieldName => $ignore) {
if ($first) $first = false; else $line .= ",";
$line .= $fieldName;
}
if ($out !== null) {
$out->write($line);
$out->newLine();
} else {
print($line.PHP_EOL);
}
$line = "";
$colsprinted = true;
} // if show headers
$first = true;
foreach($fields as $columnValue) {
if ($columnValue != null) {
$columnValue = trim($columnValue);
}
if ($first) {
$first = false;
} else {
$line .= ",";
}
$line .= $columnValue;
}
if ($out !== null) {
$out->write($line);
$out->newLine();
} else {
print($line . PHP_EOL);
}
$line = "";
} // while rs->next()
}
} while ($this->statement->getMoreResults());
print(PHP_EOL);
if ($out !== null) $out->newLine();
}
}
/**
* "Inner" class that contains the definition of a new transaction element.
* Transactions allow several files or blocks of statements
* to be executed using the same JDBC connection and commit
* operation in between.
*
* @package phing.tasks.ext.creole
*/
class SQLExecTransaction {
private $tSrcFile = null;
private $tSqlCommand = "";
private $parent;
function __construct($parent)
{
// Parent is required so that we can log things ...
$this->parent = $parent;
}
public function setSrc(PhingFile $src)
{
$this->tSrcFile = $src;
}
public function addText($sql)
{
$this->tSqlCommand .= $sql;
}
/**
* @throws IOException, SQLException
*/
public function runTransaction($out = null)
{
if (!empty($this->tSqlCommand)) {
$this->parent->log("Executing commands", Project::MSG_INFO);
$this->parent->runStatements(new StringReader($this->tSqlCommand), $out);
}
if ($this->tSrcFile !== null) {
$this->parent->log("Executing file: " . $this->tSrcFile->getAbsolutePath(),
Project::MSG_INFO);
$reader = new FileReader($this->tSrcFile);
$this->parent->runStatements($reader, $out);
$reader->close();
}
}
}
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