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<?php
/*
* $Id: FileWriter.php,v 1.7 2005/05/26 13:10:52 mrook Exp $
*
* 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>.
*/
include_once 'phing/system/io/PhingFile.php';
include_once 'phing/system/io/Writer.php';
/**
* Convenience class for reading files. The constructor of this
*
* @package phing.system.io
*/
class FileWriter extends Writer {
protected $file;
protected $fd;
/** Whether to append contents to file. */
protected $append;
/** Whether we should attempt to lock the file (currently disabled). */
protected $exclusive;
/**
* Construct a new FileWriter.
* @param mixed $file PhingFile or string pathname.
* @param boolean $append Append to existing file?
* @param boolean $exclusive Lock file? (currently disabled due to windows incompatibility)
*/
function __construct($file, $append = false, $exclusive = false) {
if ($file instanceof PhingFile) {
$this->file = $file;
} elseif (is_string($file)) {
$this->file = new PhingFile($file);
} else {
throw new Exception("Invalid argument type for \$file.");
}
$this->append = $append;
$this->exclusive = $exclusive;
}
function close() {
if ($this->fd === null) {
return true;
}
if (false === @fclose($this->fd)) {
// FAILED.
$msg = "Cannot fclose " . $this->file->__toString() . " $php_errormsg";
throw new IOException($msg);
} else {
$this->fd = null;
return true;
}
}
function open() {
if ($this->fd === null) {
if ($this->append) { $flags = "ab"; } else { $flags = "wb"; }
$this->fd = @fopen($this->file->getPath(), $flags);
}
if ($this->fd === false) {
// fopen FAILED.
// Add error from php to end of log message. $php_errormsg.
$msg = "Cannot fopen ".$this->file->getPath()." $php_errormsg";
throw new IOException($msg);
}
if (false) {
// Locks don't seem to work on windows??? HELP!!!!!!!!!
// if (FALSE === @flock($fp, LOCK_EX)) { // FAILED.
$msg = "Cannot acquire flock on $file. $php_errormsg";
throw new IOException($msg);
}
return true;
}
function reset() {
// FIXME -- what exactly should this do, if anything?
// reset to beginning of file (i.e. re-open)?
}
function writeBuffer($buffer) {
if (!$this->file->canWrite()) {
throw new IOException("No permission to write to file: " . $this->file->__toString());
}
$this->open();
$result = @fwrite($this->fd, $buffer);
$this->close();
if ($result === false) {
throw new IOException("Error writing file: ". $this->file->toString());
} else {
return true;
}
}
function write($buf, $off = null, $len = null) {
if ( $off === null && $len === null )
$to_write = $buf;
else
$to_write = substr($buf, $off, $len);
$this->open();
$result = @fwrite($this->fd, $to_write);
if ( $result === false ) {
throw new IOException("Error writing file.");
} else {
return true;
}
}
function getResource() {
return $this->file->toString();
}
}
?>
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