protected function decodeMessage(Protobuf\Message $message, $data)
{
// Get message descriptor
$descriptor = Protobuf::getRegistry()->getDescriptor($message);
// Split the index in UTF8 characters
preg_match_all('/./u', $data[0], $chars);
$chars = $chars[0];
for ($i = 1; $i < count($data); $i++) {
$k = $this->c2i($chars[$i - 1]) - 48;
$v = $data[$i];
$field = $descriptor->getField($k);
if (NULL === $field) {
// Unknown
$unknown = new PhpArray\Unknown($k, gettype($v), $v);
$message->addUnknown($unknown);
continue;
}
$name = $field->getName();
if ($field->getType() === Protobuf::TYPE_MESSAGE) {
$nested = $field->getReference();
if ($field->isRepeated()) {
foreach ($v as $kk => $vv) {
$v[$kk] = $this->decodeMessage(new $nested(), $vv);
}
$message->initValue($name, $v);
} else {
$obj = $this->decodeMessage(new $nested(), $v);
$message->initValue($name, $obj);
}
} else {
$message->initValue($name, $v);
}
}
return $message;
}
protected function decodeMessage(Protobuf\Message $message, $data)
{
// Get message descriptor
$descriptor = Protobuf::getRegistry()->getDescriptor($message);
foreach ($data as $key => $v) {
// Get the field by tag number or name
$field = $this->useTagNumber ? $descriptor->getField($key) : $descriptor->getFieldByName($key);
// Unknown field found
if (!$field) {
$unknown = new PhpArray\Unknown($key, gettype($v), $v);
$message->addUnknown($unknown);
continue;
}
if ($field->isRepeated()) {
// Make sure the value is an array of values
$v = is_array($v) && is_int(key($v)) ? $v : array($v);
foreach ($v as $k => $vv) {
$v[$k] = $this->filterValue($vv, $field);
}
} else {
$v = $this->filterValue($v, $field);
}
$message->_set($field->getNumber(), $v);
}
return $message;
}
protected function decodeMessage(Protobuf\MessageInterface $message, $data)
{
// Get message descriptor
$descriptor = Protobuf::getRegistry()->getDescriptor($message);
$isLazy = $this->getOption('lazy');
$useTagNumber = $this->getOption('tags');
foreach ($data as $key => $v) {
// Get the field by tag number or name
$field = $useTagNumber ? $descriptor->getField($key) : $descriptor->getFieldByName($key);
// Unknown field found
if (!$field) {
$unknown = new PhpArray\Unknown($key, gettype($v), $v);
$message->addUnknown($unknown);
continue;
}
if ($field->isRepeated()) {
// Make sure the value is an array of values
$v = is_array($v) && (empty($v) || is_int(key($v))) ? $v : array($v);
// If we are packing lazy values use a LazyRepeat as container
if ($isLazy && $field->getType() === Protobuf::TYPE_MESSAGE) {
$v = new Protobuf\LazyRepeat($v);
$v->codec = $this;
$v->descriptor = $field;
} else {
foreach ($v as $k => $vv) {
$v[$k] = $this->filterValue($vv, $field);
}
}
} else {
$v = $this->filterValue($v, $field);
}
$message->initValue($field->getName(), $v);
}
return $message;
}
/**
* @param string $data
*/
public function __construct($data = null)
{
// Cache the descriptor instance
$this->_descriptor = Protobuf::getRegistry()->getDescriptor($this);
// Assign default values to extensions
foreach ($this->_descriptor->getFields() as $f) {
if ($f->isExtension() && $f->hasDefault()) {
$this->_extensions[$f->getName()] = $f->getDefault();
}
}
if (NULL !== $data) {
$this->parse($data);
}
}
protected function encodeMessage(Protobuf\MessageInterface $message, $level = 0)
{
$descriptor = Protobuf::getRegistry()->getDescriptor($message);
$strict = $this->getOption('strict');
$indent = str_repeat(' ', $level);
$data = '';
foreach ($descriptor->getFields() as $tag => $field) {
$empty = !isset($message[$tag]);
if ($strict && $empty && $field->isRequired() && !$field->hasDefault()) {
throw new \UnexpectedValueException('Message ' . $descriptor->getName() . '\'s field tag ' . $tag . '(' . $field->getName() . ') is required but has no value');
}
if ($empty && !$field->hasDefault()) {
continue;
}
$name = $field->getName();
$value = $message[$tag];
if ($value === NULL) {
continue;
}
if ($field->isRepeated()) {
foreach ($value as $val) {
// Skip nullified repeated values
if (NULL === $val) {
continue;
} else {
if ($field->getType() !== Protobuf::TYPE_MESSAGE) {
$data .= $indent . $name . ': ' . json_encode($val) . "\n";
} else {
$data .= $indent . $name . " {\n";
$data .= $this->encodeMessage($val, $level + 1);
$data .= $indent . "}\n";
}
}
}
} else {
if ($field->getType() === Protobuf::TYPE_MESSAGE) {
$data .= $indent . $name . " {\n";
$data .= $this->encodeMessage($value, $level + 1);
$data .= $indent . "}\n";
} else {
$data .= $indent . $name . ': ' . json_encode($value) . "\n";
}
}
}
return $data;
}
/**
* @param mixed $data
*/
public function __construct($data = null)
{
// Cache the descriptor instance for this class
if (!static::$__descriptor) {
static::$__descriptor = Protobuf::getRegistry()->getDescriptor($this);
}
// Alias the descriptor to this object instance since it's faster to access
$this->_descriptor = static::$__descriptor;
// BACKWARDS COMPATIBILITY: Unset public properties
$publicfields = get_object_vars($this);
foreach ($this->_descriptor->getFields() as $field) {
$name = $field->name;
if (array_key_exists($name, $publicfields)) {
//trigger_error('DESTROYING PUBLIC FIELD: ' . $name);
unset($this->{$name});
}
}
if (NULL !== $data) {
$this->parse($data);
}
}
/**
* @param \DrSlump\Protobuf\MessageInterface $message
* @param string $data
* @return \DrSlump\Protobuf\MessageInterface
*/
protected function _decodeMessage(\DrSlump\Protobuf\MessageInterface $message, $data)
{
$descriptor = Protobuf::getRegistry()->getDescriptor($message);
$name = $descriptor->getName();
$res = $this->_describe($descriptor);
$ret = \protobuf_decode($res, $data);
// In non lazy mode we just pass the returned array thru the PhpArray codec
if (!$this->getOption('lazy')) {
if (!$this->_codec) {
$this->_codec = new PhpArray();
$this->_codec->setOption('lazy', false);
}
return $this->_codec->decode($message, $ret);
}
// In lazy mode we need to walk thru the fields to convert message strings
// to LazyValue / LazyRepeat
foreach ($descriptor->getFields() as $field) {
$name = $field->getName();
if (!isset($ret[$name])) {
continue;
}
$value = $ret[$name];
if ($field->getType() === Protobuf::TYPE_MESSAGE) {
if ($field->getRule() === Protobuf::RULE_REPEATED) {
$value = new Protobuf\LazyRepeat($value);
$value->codec = $this;
$value->descriptor = $field;
} else {
$lazy = new Protobuf\LazyValue();
$lazy->codec = $this;
$lazy->descriptor = $field;
$lazy->value = $value;
$value = $lazy;
}
}
$message->initValue($name, $value);
}
return $message;
}
protected function encodeMessage(Protobuf\Message $message)
{
$writer = new NativeWriter();
// Get message descriptor
$descriptor = Protobuf::getRegistry()->getDescriptor($message);
$strict = $this->getOption('strict');
foreach ($descriptor->getFields() as $tag => $field) {
$empty = !isset($message[$tag]);
if ($strict && $empty && $field->isRequired() && !$field->hasDefault()) {
throw new \UnexpectedValueException('Message ' . get_class($message) . '\'s field tag ' . $tag . '(' . $field->getName() . ') is required but has no value');
}
// Skip unknown fields
if ($empty && !$field->hasDefault()) {
continue;
}
$type = $field->getType();
$wire = $field->isPacked() ? self::WIRE_LENGTH : $this->getWireType($type, null);
// Compute key with tag number and wire type
$key = $tag << 3 | $wire;
$value = $message[$tag];
if (NULL === $value) {
continue;
}
if ($field->isRepeated()) {
// Packed fields are encoded as a length-delimited stream containing
// the concatenated encoding of each value.
if ($field->isPacked() && !empty($value)) {
$subwriter = new NativeWriter();
foreach ($value as $val) {
$this->encodeSimpleType($subwriter, $type, $val);
}
$data = $subwriter->getBytes();
$writer->varint($key);
$writer->varint(strlen($data));
$writer->write($data);
} else {
foreach ($value as $val) {
// Skip nullified repeated values
if (NULL === $val) {
continue;
} else {
if ($type !== Protobuf::TYPE_MESSAGE) {
$writer->varint($key);
$this->encodeSimpleType($writer, $type, $val);
} else {
$writer->varint($key);
$data = $this->encodeMessage($val);
$writer->varint(strlen($data));
$writer->write($data);
}
}
}
}
} else {
if ($type !== Protobuf::TYPE_MESSAGE) {
$writer->varint($key);
$this->encodeSimpleType($writer, $type, $value);
} else {
$writer->varint($key);
$data = $this->encodeMessage($value);
$writer->varint(strlen($data));
$writer->write($data);
}
}
}
return $writer->getBytes();
}
/**
* @param \DrSlump\Protobuf\Codec\Binary\Reader $reader
* @param \DrSlump\Protobuf\Message $message
* @param int $length
* @return \DrSlump\Protobuf\Message
*/
protected function decodeMessage($reader, \DrSlump\Protobuf\Message $message, $length = NULL)
{
/** @var $message \DrSlump\Protobuf\Message */
/** @var $descriptor \DrSlump\Protobuf\Descriptor */
// Get message descriptor
$descriptor = Protobuf::getRegistry()->getDescriptor($message);
// Cache locally the message fields
$fields = $descriptor->getFields();
// Calculate the maximum offset if we have defined a length
$limit = !is_null($length) ? $reader->pos() + $length : NULL;
$pos = $reader->pos();
// Keep reading until we reach the end or the limit
while ($limit === NULL && !$reader->eof() || $limit !== NULL && $reader->pos() < $limit) {
// Get initial varint with tag number and wire type
$key = $reader->varint();
if ($reader->eof()) {
break;
}
$wire = $key & 0x7;
$tag = $key >> 3;
// Find the matching field for the tag number
if (!isset($fields[$tag])) {
$data = $this->decodeUnknown($reader, $wire);
$unknown = new Binary\Unknown($tag, $wire, $data);
$message->addUnknown($unknown);
continue;
}
$field = $fields[$tag];
$type = $field->getType();
// Check if we are dealing with a packed stream, we cannot rely on the packed
// flag of the message since we cannot be certain if the creator of the message
// was using it.
if ($wire === self::WIRE_LENGTH && $field->isRepeated() && self::$PACKABLE[$type]) {
$len = $reader->varint();
$until = $reader->pos() + $len;
$wire = $this->getWireType($type);
while ($reader->pos() < $until) {
$item = $this->decodeSimpleType($reader, $type, $wire);
$message->_add($tag, $item);
}
} else {
// Assert wire and type match
$this->assertWireType($wire, $type);
// Check if it's a sub-message
if ($type === Protobuf::TYPE_MESSAGE) {
$submessage = $field->getReference();
$submessage = new $submessage();
$len = $reader->varint();
$value = $this->decodeMessage($reader, $submessage, $len);
} else {
$value = $this->decodeSimpleType($reader, $type, $wire);
}
// Support non-packed repeated fields
if ($field->isRepeated()) {
$message->_add($tag, $value);
} else {
$message->_set($tag, $value);
}
}
}
return $message;
}
