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Mr·x
2020-10-09 10:58:37 +08:00
parent 8147a57fa0
commit c4bde06838
37 changed files with 7920 additions and 2 deletions
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Kafka/Protocol/DescribeGroups.php
+201
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@@ -0,0 +1,201 @@
<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */
// +---------------------------------------------------------------------------
// | SWAN [ $_SWANBR_SLOGAN_$ ]
// +---------------------------------------------------------------------------
// | Copyright $_SWANBR_COPYRIGHT_$
// +---------------------------------------------------------------------------
// | Version $_SWANBR_VERSION_$
// +---------------------------------------------------------------------------
// | Licensed ( $_SWANBR_LICENSED_URL_$ )
// +---------------------------------------------------------------------------
// | $_SWANBR_WEB_DOMAIN_$
// +---------------------------------------------------------------------------
namespace Kafka\Protocol;
/**
+------------------------------------------------------------------------------
* Kafka protocol for describe group api
+------------------------------------------------------------------------------
*
* @package
* @version $_SWANBR_VERSION_$
* @copyright Copyleft
* @author $_SWANBR_AUTHOR_$
+------------------------------------------------------------------------------
*/
class DescribeGroups extends Protocol
{
// {{{ functions
// {{{ public function encode()
/**
* describe group request encode
*
* @param array $payloads
* @access public
* @return string
*/
public function encode($payloads)
{
if (!is_array($payloads)) {
$payloads = array($payloads);
}
$header = $this->requestHeader('kafka-php', self::DESCRIBE_GROUPS_REQUEST, self::DESCRIBE_GROUPS_REQUEST);
$data = self::encodeArray($payloads, array($this, 'encodeString'), self::PACK_INT16);
$data = self::encodeString($header . $data, self::PACK_INT32);
return $data;
}
// }}}
// {{{ public function decode()
/**
* decode group response
*
* @access public
* @return array
*/
public function decode($data)
{
$offset = 0;
$groups = $this->decodeArray(substr($data, $offset), array($this, 'describeGroup'));
$offset += $groups['length'];
return $groups['data'];
}
// }}}
// {{{ protected function describeGroup()
/**
* decode describe group response
*
* @access protected
* @return array
*/
protected function describeGroup($data)
{
$offset = 0;
$errorCode = self::unpack(self::BIT_B16_SIGNED, substr($data, $offset, 2));
$offset += 2;
$groupId = $this->decodeString(substr($data, $offset), self::BIT_B16);
$offset += $groupId['length'];
$state = $this->decodeString(substr($data, $offset), self::BIT_B16);
$offset += $state['length'];
$protocolType = $this->decodeString(substr($data, $offset), self::BIT_B16);
$offset += $protocolType['length'];
$protocol = $this->decodeString(substr($data, $offset), self::BIT_B16);
$offset += $protocol['length'];
$members = $this->decodeArray(substr($data, $offset), array($this, 'describeMember'));
$offset += $members['length'];
return array(
'length' => $offset,
'data' => array(
'errorCode' => $errorCode,
'groupId' => $groupId['data'],
'state' => $state['data'],
'protocolType' => $protocolType['data'],
'protocol' => $protocol['data'],
'members' => $members['data']
)
);
}
// }}}
// {{{ protected function describeMember()
/**
* decode describe members response
*
* @access protected
* @return array
*/
protected function describeMember($data)
{
$offset = 0;
$memberId = $this->decodeString(substr($data, $offset), self::BIT_B16);
$offset += $memberId['length'];
$clientId = $this->decodeString(substr($data, $offset), self::BIT_B16);
$offset += $clientId['length'];
$clientHost = $this->decodeString(substr($data, $offset), self::BIT_B16);
$offset += $clientHost['length'];
$metadata = $this->decodeString(substr($data, $offset), self::BIT_B32);
$offset += $metadata['length'];
$assignment = $this->decodeString(substr($data, $offset), self::BIT_B32);
$offset += $assignment['length'];
$memberAssignment = $assignment['data'];
$memberAssignmentOffset = 0;
$version = self::unpack(self::BIT_B16_SIGNED, substr($memberAssignment, $memberAssignmentOffset, 2));
$memberAssignmentOffset += 2;
$partitionAssignments = $this->decodeArray(substr($memberAssignment, $memberAssignmentOffset),
array($this, 'describeResponsePartition'));
$memberAssignmentOffset += $partitionAssignments['length'];
$userData = $this->decodeString(substr($memberAssignment, $memberAssignmentOffset), self::BIT_B32);
$metaData = $metadata['data'];
$metaOffset = 0;
$version = self::unpack(self::BIT_B16, substr($metaData, $metaOffset, 2));
$metaOffset += 2;
$topics = $this->decodeArray(substr($metaData, $metaOffset), array($this, 'decodeString'), self::BIT_B16);
$metaOffset += $topics['length'];
$metaUserData = $this->decodeString(substr($metaData, $metaOffset), self::BIT_B32);
return array(
'length' => $offset,
'data' => array(
'memberId' => $memberId['data'],
'clientId' => $clientId['data'],
'clientHost' => $clientHost['data'],
'metadata' => array(
'version' => $version,
'topics' => $topics['data'],
'userData' => $metaUserData['data'],
),
'assignment' => array(
'version' => $version,
'partitions' => $partitionAssignments['data'],
'userData' => $userData['data']
)
)
);
}
// }}}
// {{{ protected function describeResponsePartition()
/**
* decode describe group partition response
*
* @access protected
* @return array
*/
protected function describeResponsePartition($data)
{
$offset = 0;
$topicName = $this->decodeString(substr($data, $offset), self::BIT_B16);
$offset += $topicName['length'];
$partitions = $this->decodePrimitiveArray(substr($data, $offset), self::BIT_B32);
$offset += $partitions['length'];
return array(
'length' => $offset,
'data' => array(
'topicName' => $topicName['data'],
'partitions' => $partitions['data'],
)
);
}
// }}}
// }}}
}