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<?php |
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/* |
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* This file is part of SwiftMailer. |
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* (c) 2004-2009 Chris Corbyn |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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/** |
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* Allows reading and writing of bytes to and from an array. |
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* |
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* @author Chris Corbyn |
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*/ |
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class Swift_ByteStream_ArrayByteStream implements Swift_InputByteStream, Swift_OutputByteStream |
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{ |
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/** |
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* The internal stack of bytes. |
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* |
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* @var string[] |
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*/ |
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private $_array = array(); |
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/** |
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* The size of the stack. |
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* |
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* @var int |
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*/ |
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private $_arraySize = 0; |
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/** |
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* The internal pointer offset. |
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* |
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* @var int |
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*/ |
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private $_offset = 0; |
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/** |
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* Bound streams. |
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* |
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* @var Swift_InputByteStream[] |
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*/ |
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private $_mirrors = array(); |
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/** |
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* Create a new ArrayByteStream. |
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* |
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* If $stack is given the stream will be populated with the bytes it contains. |
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* |
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* @param mixed $stack of bytes in string or array form, optional |
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*/ |
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public function __construct($stack = null) |
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{ |
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if (is_array($stack)) { |
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$this->_array = $stack; |
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$this->_arraySize = count($stack); |
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} elseif (is_string($stack)) { |
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$this->write($stack); |
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} else { |
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$this->_array = array(); |
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} |
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} |
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/** |
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* Reads $length bytes from the stream into a string and moves the pointer |
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* through the stream by $length. |
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* |
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* If less bytes exist than are requested the |
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* remaining bytes are given instead. If no bytes are remaining at all, boolean |
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* false is returned. |
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* |
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* @param int $length |
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* |
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* @return string |
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*/ |
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public function read($length) |
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{ |
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if ($this->_offset == $this->_arraySize) { |
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return false; |
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} |
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// Don't use array slice |
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$end = $length + $this->_offset; |
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$end = $this->_arraySize < $end ? $this->_arraySize : $end; |
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$ret = ''; |
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for (; $this->_offset < $end; ++$this->_offset) { |
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$ret .= $this->_array[$this->_offset]; |
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} |
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return $ret; |
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} |
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/** |
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* Writes $bytes to the end of the stream. |
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* |
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* @param string $bytes |
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*/ |
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public function write($bytes) |
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{ |
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$to_add = str_split($bytes); |
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foreach ($to_add as $value) { |
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$this->_array[] = $value; |
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} |
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$this->_arraySize = count($this->_array); |
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foreach ($this->_mirrors as $stream) { |
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$stream->write($bytes); |
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} |
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} |
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/** |
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* Not used. |
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*/ |
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public function commit() |
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{ |
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} |
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/** |
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* Attach $is to this stream. |
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* |
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* The stream acts as an observer, receiving all data that is written. |
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* All {@link write()} and {@link flushBuffers()} operations will be mirrored. |
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* |
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* @param Swift_InputByteStream $is |
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*/ |
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public function bind(Swift_InputByteStream $is) |
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{ |
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$this->_mirrors[] = $is; |
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} |
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/** |
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* Remove an already bound stream. |
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* |
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* If $is is not bound, no errors will be raised. |
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* If the stream currently has any buffered data it will be written to $is |
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* before unbinding occurs. |
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* |
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* @param Swift_InputByteStream $is |
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*/ |
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public function unbind(Swift_InputByteStream $is) |
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{ |
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foreach ($this->_mirrors as $k => $stream) { |
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if ($is === $stream) { |
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unset($this->_mirrors[$k]); |
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} |
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} |
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} |
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/** |
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* Move the internal read pointer to $byteOffset in the stream. |
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* |
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* @param int $byteOffset |
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* |
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* @return bool |
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*/ |
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public function setReadPointer($byteOffset) |
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{ |
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if ($byteOffset > $this->_arraySize) { |
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$byteOffset = $this->_arraySize; |
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} elseif ($byteOffset < 0) { |
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$byteOffset = 0; |
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} |
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$this->_offset = $byteOffset; |
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} |
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/** |
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* Flush the contents of the stream (empty it) and set the internal pointer |
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* to the beginning. |
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*/ |
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public function flushBuffers() |
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{ |
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$this->_offset = 0; |
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$this->_array = array(); |
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$this->_arraySize = 0; |
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foreach ($this->_mirrors as $stream) { |
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$stream->flushBuffers(); |
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} |
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} |
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} |
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.