改名

2020-10-09 10:58:37 +08:00
parent 8147a57fa0
commit c4bde06838
37 changed files with 7920 additions and 2 deletions
@@ -0,0 +1,203 @@
+<?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 offset api
+------------------------------------------------------------------------------
+*
+* @package
+* @version $_SWANBR_VERSION_$
+* @copyright Copyleft
+* @author $_SWANBR_AUTHOR_$
+------------------------------------------------------------------------------
+*/
+
+class Offset extends Protocol
+{
+    // {{{ functions
+    // {{{ public function encode()
+
+    /**
+     * offset request encode
+     *
+     * @param array $payloads
+     * @access public
+     * @return string
+     */
+    public function encode($payloads)
+    {
+        if (!isset($payloads['data'])) {
+            throw new \Kafka\Exception\Protocol('given offset data invalid. `data` is undefined.');
+        }
+
+        if (!isset($payloads['replica_id'])) {
+            $payloads['replica_id'] = -1;
+        }
+
+        $header = $this->requestHeader('kafka-php', self::OFFSET_REQUEST, self::OFFSET_REQUEST);
+        $data   = self::pack(self::BIT_B32, $payloads['replica_id']);
+        $data  .= self::encodeArray($payloads['data'], array($this, 'encodeOffsetTopic'));
+        $data   = self::encodeString($header . $data, self::PACK_INT32);
+
+        return $data;
+    }
+
+    // }}}
+    // {{{ public function decode()
+
+    /**
+     * decode group response
+     *
+     * @access public
+     * @return array
+     */
+    public function decode($data)
+    {
+        $offset = 0;
+
+        $version = $this->getApiVersion(self::OFFSET_REQUEST);
+        $topics = $this->decodeArray(substr($data, $offset), array($this, 'offsetTopic'), $version);
+        $offset += $topics['length'];
+        
+        return $topics['data'];
+    }
+
+    // }}}
+    // {{{ protected function encodeOffsetPartion()
+
+    /**
+     * encode signal part
+     *
+     * @param partions
+     * @access protected
+     * @return string
+     */
+    protected function encodeOffsetPartion($values)
+    {
+        if (!isset($values['partition_id'])) {
+            throw new \Kafka\Exception\Protocol('given offset data invalid. `partition_id` is undefined.');
+        }
+
+        if (!isset($values['time'])) {
+            $values['time'] = -1; // -1
+        }
+
+        if (!isset($values['max_offset'])) {
+            $values['max_offset'] = 100000;
+        }
+
+        $data = self::pack(self::BIT_B32, $values['partition_id']);
+        $data .= self::pack(self::BIT_B64, $values['time']);
+
+        if ($this->getApiVersion(self::OFFSET_REQUEST) == self::API_VERSION0) {
+            $data .= self::pack(self::BIT_B32, $values['max_offset']);
+        }
+
+        return $data;
+    }
+
+    // }}}
+    // {{{ protected function encodeOffsetTopic()
+
+    /**
+     * encode signal topic
+     *
+     * @param partions
+     * @access protected
+     * @return string
+     */
+    protected function encodeOffsetTopic($values)
+    {
+        if (!isset($values['topic_name'])) {
+            throw new \Kafka\Exception\Protocol('given offset data invalid. `topic_name` is undefined.');
+        }
+
+        if (!isset($values['partitions']) || empty($values['partitions'])) {
+            throw new \Kafka\Exception\Protocol('given offset data invalid. `partitions` is undefined.');
+        }
+
+        $topic = self::encodeString($values['topic_name'], self::PACK_INT16);
+        $partitions = self::encodeArray($values['partitions'], array($this, 'encodeOffsetPartion'));
+
+        return $topic . $partitions;
+    }
+
+    // }}}
+    // {{{ protected function offsetTopic()
+
+    /**
+     * decode offset topic response
+     *
+     * @access protected
+     * @return array
+     */
+    protected function offsetTopic($data, $version)
+    {
+        $offset = 0;
+        $topicInfo = $this->decodeString(substr($data, $offset), self::BIT_B16);
+        $offset += $topicInfo['length'];
+
+        $partitions = $this->decodeArray(substr($data, $offset), array($this, 'offsetPartition'), $version);
+        $offset += $partitions['length'];
+
+        return array(
+            'length' => $offset,
+            'data' => array(
+                'topicName' => $topicInfo['data'],
+                'partitions'  => $partitions['data'],
+            )
+        );
+    }
+
+    // }}}
+    // {{{ protected function offsetPartition()
+
+    /**
+     * decode offset partition response
+     *
+     * @access protected
+     * @return array
+     */
+    protected function offsetPartition($data, $version)
+    {
+        $offset = 0;
+        $partitionId = self::unpack(self::BIT_B32, substr($data, $offset, 4));
+        $offset += 4;
+        $errorCode = self::unpack(self::BIT_B16_SIGNED, substr($data, $offset, 2));
+        $offset += 2;
+        $timestamp = 0;
+        if ($version != self::API_VERSION0) {
+            $timestamp = self::unpack(self::BIT_B64, substr($data, $offset, 8));
+            $offset += 8;
+        }
+        $offsets = $this->decodePrimitiveArray(substr($data, $offset), self::BIT_B64);
+        $offset += $offsets['length'];
+
+        return array(
+            'length' => $offset,
+            'data' => array(
+                'partition' => $partitionId,
+                'errorCode' => $errorCode,
+                'timestamp' => $timestamp,
+                'offsets' => $offsets['data'],
+            )
+        );
+    }
+
+    // }}}
+    // }}}
+}