Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php |
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| 30 | class Queue |
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| 31 | { |
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| 32 | private $queueName; |
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| 33 | private $client; |
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| 34 | |||
| 35 | // boolean, whether the message body will be encoded in base64 |
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| 36 | private $base64; |
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| 37 | |||
| 38 | public function __construct(HttpClient $client, $queueName, $base64 = TRUE) |
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| 39 | { |
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| 40 | $this->queueName = $queueName; |
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| 41 | $this->client = $client; |
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| 42 | $this->base64 = $base64; |
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| 43 | } |
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| 44 | |||
| 45 | public function setBase64($base64) |
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| 46 | { |
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| 47 | $this->base64 = $base64; |
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| 48 | } |
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| 49 | |||
| 50 | public function isBase64() |
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| 51 | { |
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| 52 | return ($this->base64 == TRUE); |
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| 53 | } |
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| 54 | |||
| 55 | public function getQueueName() |
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| 56 | { |
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| 57 | return $this->queueName; |
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| 58 | } |
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| 59 | |||
| 60 | /** |
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| 61 | * Set the QueueAttributes, detail API sepcs: |
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| 62 | * https://docs.aliyun.com/?spm=#/pub/mns/api_reference/api_spec&queue_operation |
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| 63 | * |
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| 64 | * @param QueueAttributes $attributes: the QueueAttributes to set |
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| 65 | * |
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| 66 | * @return SetQueueAttributeResponse: the response |
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| 67 | * |
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| 68 | * @throws QueueNotExistException if queue does not exist |
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| 69 | * @throws InvalidArgumentException if any argument value is invalid |
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| 70 | * @throws MnsException if any other exception happends |
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| 71 | */ |
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| 72 | public function setAttribute(QueueAttributes $attributes) |
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| 73 | { |
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| 74 | $request = new SetQueueAttributeRequest($this->queueName, $attributes); |
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| 75 | $response = new SetQueueAttributeResponse(); |
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| 76 | return $this->client->sendRequest($request, $response); |
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| 77 | } |
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| 78 | |||
| 79 | public function setAttributeAsync(QueueAttributes $attributes, |
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| 80 | AsyncCallback $callback = NULL) |
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| 81 | { |
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| 82 | $request = new SetQueueAttributeRequest($this->queueName, $attributes); |
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| 83 | $response = new SetQueueAttributeResponse(); |
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| 84 | return $this->client->sendRequestAsync($request, $response, $callback); |
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| 85 | } |
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| 86 | |||
| 87 | /** |
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| 88 | * Get the QueueAttributes, detail API sepcs: |
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| 89 | * https://docs.aliyun.com/?spm=#/pub/mns/api_reference/api_spec&queue_operation |
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| 90 | * |
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| 91 | * @return GetQueueAttributeResponse: containing the attributes |
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| 92 | * |
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| 93 | * @throws QueueNotExistException if queue does not exist |
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| 94 | * @throws MnsException if any other exception happends |
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| 95 | */ |
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| 96 | public function getAttribute() |
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| 97 | { |
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| 98 | $request = new GetQueueAttributeRequest($this->queueName); |
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| 99 | $response = new GetQueueAttributeResponse(); |
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| 100 | return $this->client->sendRequest($request, $response); |
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| 101 | } |
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| 102 | |||
| 103 | public function getAttributeAsync(AsyncCallback $callback = NULL) |
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| 104 | { |
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| 105 | $request = new GetQueueAttributeRequest($this->queueName); |
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| 106 | $response = new GetQueueAttributeResponse(); |
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| 107 | return $this->client->sendRequestAsync($request, $response, $callback); |
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| 108 | } |
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| 109 | |||
| 110 | /** |
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| 111 | * SendMessage, the messageBody will be automatically encoded in base64 |
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| 112 | * If you do not need the message body to be encoded in Base64, |
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| 113 | * please specify the $base64 = FALSE in Queue |
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| 114 | * |
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| 115 | * detail API sepcs: |
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| 116 | * https://docs.aliyun.com/?spm=#/pub/mns/api_reference/api_spec&message_operation |
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| 117 | * |
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| 118 | * @param SendMessageRequest: containing the message body and properties |
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| 119 | * |
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| 120 | * @return SendMessageResponse: containing the messageId and bodyMD5 |
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| 121 | * |
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| 122 | * @throws QueueNotExistException if queue does not exist |
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| 123 | * @throws InvalidArgumentException if any argument value is invalid |
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| 124 | * @throws MalformedXMLException if any error in xml |
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| 125 | * @throws MnsException if any other exception happends |
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| 126 | */ |
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| 127 | public function sendMessage(SendMessageRequest $request) |
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| 128 | { |
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| 129 | $request->setQueueName($this->queueName); |
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| 130 | $request->setBase64($this->base64); |
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| 131 | $response = new SendMessageResponse(); |
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| 132 | return $this->client->sendRequest($request, $response); |
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| 133 | } |
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| 134 | |||
| 135 | public function sendMessageAsync(SendMessageRequest $request, |
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| 136 | AsyncCallback $callback = NULL) |
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| 137 | { |
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| 138 | $request->setQueueName($this->queueName); |
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| 139 | $request->setBase64($this->base64); |
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| 140 | $response = new SendMessageResponse(); |
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| 141 | return $this->client->sendRequestAsync($request, $response, $callback); |
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| 142 | } |
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| 143 | |||
| 144 | /** |
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| 145 | * PeekMessage, the messageBody will be automatically decoded as base64 if the $base64 in Queue is TRUE |
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| 146 | * |
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| 147 | * detail API sepcs: |
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| 148 | * https://docs.aliyun.com/?spm=#/pub/mns/api_reference/api_spec&message_operation |
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| 149 | * |
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| 150 | * @return PeekMessageResponse: containing the messageBody and properties |
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| 151 | * |
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| 152 | * @throws QueueNotExistException if queue does not exist |
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| 153 | * @throws MessageNotExistException if no message exists in the queue |
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| 154 | * @throws MnsException if any other exception happends |
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| 155 | */ |
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| 156 | public function peekMessage() |
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| 157 | { |
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| 158 | $request = new PeekMessageRequest($this->queueName); |
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| 159 | $response = new PeekMessageResponse($this->base64); |
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| 160 | return $this->client->sendRequest($request, $response); |
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| 161 | } |
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| 162 | |||
| 163 | public function peekMessageAsync(AsyncCallback $callback = NULL) |
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| 164 | { |
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| 165 | $request = new PeekMessageRequest($this->queueName); |
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| 166 | $response = new PeekMessageResponse($this->base64); |
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| 167 | return $this->client->sendRequestAsync($request, $response, $callback); |
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| 168 | } |
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| 169 | |||
| 170 | /** |
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| 171 | * ReceiveMessage, the messageBody will be automatically decoded as base64 if $base64 = TRUE in Queue |
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| 172 | * detail API sepcs: |
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| 173 | * https://docs.aliyun.com/?spm=#/pub/mns/api_reference/api_spec&message_operation |
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| 174 | * |
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| 175 | * @return ReceiveMessageResponse: containing the messageBody and properties |
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| 176 | * the response is same as PeekMessageResponse, |
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| 177 | * except that the receiptHandle is also returned in receiveMessage |
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| 178 | * |
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| 179 | * @throws QueueNotExistException if queue does not exist |
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| 180 | * @throws MessageNotExistException if no message exists in the queue |
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| 181 | * @throws MnsException if any other exception happends |
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| 182 | */ |
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| 183 | public function receiveMessage() |
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| 184 | { |
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| 185 | $request = new ReceiveMessageRequest($this->queueName); |
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| 186 | $response = new ReceiveMessageResponse($this->base64); |
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| 187 | return $this->client->sendRequest($request, $response); |
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| 188 | } |
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| 189 | |||
| 190 | public function receiveMessageAsync(AsyncCallback $callback = NULL) |
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| 191 | { |
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| 192 | $request = new ReceiveMessageRequest($this->queueName); |
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| 193 | $response = new ReceiveMessageResponse($this->base64); |
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| 194 | return $this->client->sendRequestAsync($request, $response, $callback); |
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| 195 | } |
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| 196 | |||
| 197 | /** |
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| 198 | * DeleteMessage |
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| 199 | * detail API sepcs: |
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| 200 | * https://docs.aliyun.com/?spm=#/pub/mns/api_reference/api_spec&message_operation |
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| 201 | * |
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| 202 | * @param $receiptHandle: the receiptHandle returned from receiveMessage |
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| 203 | * |
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| 204 | * @return ReceiveMessageResponse |
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| 205 | * |
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| 206 | * @throws QueueNotExistException if queue does not exist |
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| 207 | * @throws InvalidArgumentException if the argument is invalid |
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| 208 | * @throws ReceiptHandleErrorException if the $receiptHandle is invalid |
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| 209 | * @throws MnsException if any other exception happends |
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| 210 | */ |
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| 211 | public function deleteMessage($receiptHandle) |
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| 212 | { |
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| 213 | $request = new DeleteMessageRequest($this->queueName, $receiptHandle); |
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| 214 | $response = new DeleteMessageResponse(); |
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| 215 | return $this->client->sendRequest($request, $response); |
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| 216 | } |
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| 217 | |||
| 218 | public function deleteMessageAsync($receiptHandle, |
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| 219 | AsyncCallback $callback = NULL) |
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| 220 | { |
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| 221 | $request = new DeleteMessageRequest($this->queueName, $receiptHandle); |
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| 222 | $response = new DeleteMessageResponse(); |
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| 223 | return $this->client->sendRequestAsync($request, $response, $callback); |
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| 224 | } |
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| 225 | |||
| 226 | /** |
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| 227 | * ChangeMessageVisibility, set the nextVisibleTime for the message |
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| 228 | * detail API sepcs: |
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| 229 | * https://docs.aliyun.com/?spm=#/pub/mns/api_reference/api_spec&message_operation |
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| 230 | * |
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| 231 | * @param $receiptHandle: the receiptHandle returned from receiveMessage |
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| 232 | * |
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| 233 | * @return ChangeMessageVisibilityResponse |
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| 234 | * |
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| 235 | * @throws QueueNotExistException if queue does not exist |
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| 236 | * @throws MessageNotExistException if the message does not exist |
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| 237 | * @throws InvalidArgumentException if the argument is invalid |
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| 238 | * @throws ReceiptHandleErrorException if the $receiptHandle is invalid |
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| 239 | * @throws MnsException if any other exception happends |
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| 240 | */ |
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| 241 | public function changeMessageVisibility($receiptHandle, $visibilityTimeout) |
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| 242 | { |
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| 243 | $request = new ChangeMessageVisibilityRequest($this->queueName, $receiptHandle, $visibilityTimeout); |
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| 244 | $response = new ChangeMessageVisibilityResponse(); |
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| 245 | return $this->client->sendRequest($request, $response); |
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| 246 | } |
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| 247 | |||
| 248 | /** |
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| 249 | * BatchSendMessage, message body will be automatically encoded in base64 |
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| 250 | * If you do not need the message body to be encoded in Base64, |
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| 251 | * please specify the $base64 = FALSE in Queue |
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| 252 | * |
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| 253 | * detail API sepcs: |
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| 254 | * https://docs.aliyun.com/?spm=#/pub/mns/api_reference/api_spec&message_operation |
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| 255 | * |
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| 256 | * @param BatchSendMessageRequest: |
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| 257 | * the requests containing an array of SendMessageRequestItems |
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| 258 | * |
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| 259 | * @return BatchSendMessageResponse |
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| 260 | * |
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| 261 | * @throws QueueNotExistException if queue does not exist |
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| 262 | * @throws MalformedXMLException if any error in the xml |
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| 263 | * @throws InvalidArgumentException if the argument is invalid |
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| 264 | * @throws BatchSendFailException if some messages are not sent |
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| 265 | * @throws MnsException if any other exception happends |
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| 266 | */ |
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| 267 | public function batchSendMessage(BatchSendMessageRequest $request) |
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| 268 | { |
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| 269 | $request->setQueueName($this->queueName); |
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| 270 | $request->setBase64($this->base64); |
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| 271 | $response = new BatchSendMessageResponse(); |
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| 272 | return $this->client->sendRequest($request, $response); |
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| 273 | } |
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| 274 | |||
| 275 | public function batchSendMessageAsync(BatchSendMessageRequest $request, |
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| 276 | AsyncCallback $callback = NULL) |
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| 277 | { |
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| 278 | $request->setQueueName($this->queueName); |
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| 279 | $request->setBase64($this->base64); |
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| 280 | $response = new BatchSendMessageResponse(); |
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| 281 | return $this->client->sendRequestAsync($request, $response, $callback); |
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| 282 | } |
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| 283 | |||
| 284 | /** |
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| 285 | * BatchReceiveMessage, message body will be automatically decoded as base64 if $base64 = TRUE in Queue |
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| 286 | * |
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| 287 | * detail API sepcs: |
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| 288 | * https://docs.aliyun.com/?spm=#/pub/mns/api_reference/api_spec&message_operation |
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| 289 | * |
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| 290 | * @param BatchReceiveMessageRequest: |
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| 291 | * containing numOfMessages and waitSeconds |
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| 292 | * |
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| 293 | * @return BatchReceiveMessageResponse: |
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| 294 | * the received messages |
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| 295 | * |
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| 296 | * @throws QueueNotExistException if queue does not exist |
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| 297 | * @throws MessageNotExistException if no message exists |
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| 298 | * @throws MnsException if any other exception happends |
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| 299 | */ |
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| 300 | public function batchReceiveMessage(BatchReceiveMessageRequest $request) |
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| 301 | { |
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| 302 | $request->setQueueName($this->queueName); |
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| 303 | $response = new BatchReceiveMessageResponse($this->base64); |
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| 304 | return $this->client->sendRequest($request, $response); |
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| 305 | } |
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| 306 | |||
| 307 | public function batchReceiveMessageAsync(BatchReceiveMessageRequest $request, AsyncCallback $callback = NULL) |
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| 308 | { |
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| 309 | $request->setQueueName($this->queueName); |
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| 310 | $response = new BatchReceiveMessageResponse($this->base64); |
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| 311 | return $this->client->sendRequestAsync($request, $response, $callback); |
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| 312 | } |
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| 313 | |||
| 314 | /** |
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| 315 | * BatchPeekMessage, message body will be automatically decoded as base64 is $base64 = TRUE in Queue |
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| 316 | * |
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| 317 | * detail API sepcs: |
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| 318 | * https://docs.aliyun.com/?spm=#/pub/mns/api_reference/api_spec&message_operation |
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| 319 | * |
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| 320 | * @param BatchPeekMessageRequest: |
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| 321 | * containing numOfMessages and waitSeconds |
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| 322 | * |
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| 323 | * @return BatchPeekMessageResponse: |
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| 324 | * the received messages |
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| 325 | * |
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| 326 | * @throws QueueNotExistException if queue does not exist |
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| 327 | * @throws MessageNotExistException if no message exists |
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| 328 | * @throws MnsException if any other exception happends |
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| 329 | */ |
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| 330 | public function batchPeekMessage($numOfMessages) |
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| 331 | { |
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| 332 | $request = new BatchPeekMessageRequest($this->queueName, $numOfMessages); |
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| 333 | $response = new BatchPeekMessageResponse($this->base64); |
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| 334 | return $this->client->sendRequest($request, $response); |
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| 335 | } |
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| 336 | |||
| 337 | public function batchPeekMessageAsync($numOfMessages, AsyncCallback $callback = NULL) |
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| 338 | { |
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| 339 | $request = new BatchPeekMessageRequest($this->queueName, $numOfMessages); |
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| 340 | $response = new BatchPeekMessageResponse($this->base64); |
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| 341 | return $this->client->sendRequestAsync($request, $response, $callback); |
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| 342 | } |
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| 343 | |||
| 344 | /** |
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| 345 | * BatchDeleteMessage |
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| 346 | * detail API sepcs: |
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| 347 | * https://docs.aliyun.com/?spm=#/pub/mns/api_reference/api_spec&message_operation |
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| 348 | * |
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| 349 | * @param $receiptHandles: |
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| 350 | * array of $receiptHandle, which is got from receiveMessage |
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| 351 | * |
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| 352 | * @return BatchDeleteMessageResponse |
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| 353 | * |
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| 354 | * @throws QueueNotExistException if queue does not exist |
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| 355 | * @throws ReceiptHandleErrorException if the receiptHandle is invalid |
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| 356 | * @throws InvalidArgumentException if the argument is invalid |
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| 357 | * @throws BatchDeleteFailException if any message not deleted |
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| 358 | * @throws MnsException if any other exception happends |
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| 359 | */ |
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| 360 | public function batchDeleteMessage($receiptHandles) |
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| 361 | { |
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| 362 | $request = new BatchDeleteMessageRequest($this->queueName, $receiptHandles); |
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| 363 | $response = new BatchDeleteMessageResponse(); |
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| 364 | return $this->client->sendRequest($request, $response); |
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| 365 | } |
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| 366 | |||
| 367 | public function batchDeleteMessageAsync($receiptHandles, AsyncCallback $callback = NULL) |
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| 368 | { |
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| 369 | $request = new BatchDeleteMessageRequest($this->queueName, $receiptHandles); |
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| 370 | $response = new BatchDeleteMessageResponse(); |
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| 371 | return $this->client->sendRequestAsync($request, $response, $callback); |
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| 372 | } |
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| 373 | } |
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| 374 | |||
| 376 |