1. <?php
  3. /**
  4. * Batch Header Metadata Operations with Retry Mechanism
  5. *
  6. * This script performs batch operations on header metadata, such as updating or creating headers,
  7. * with a retry mechanism for handling transient errors. Designed for non-production environments.
  8. */
  10. class HeaderMetadataBatcher {
  12. private $operationTypes = ['create', 'update', 'delete']; // Supported operations
  13. private $retryInterval = 5; // Seconds between retries
  14. private $maxRetries = 3; // Maximum number of retries per operation
  16. /**
  17. * @param array $headers An array of header metadata to process. Each element should contain
  18. * the operation type, header name, and header value.
  19. * Example: ['create' => ['name' => 'Content-Type', 'value' => 'application/json']]
  20. * @return array An array of results, where each element corresponds to a header and contains
  21. * the operation status (success/failure) and any error messages.
  22. */
  23. public function batchProcess(array $headers): array {
  24. $results = [];
  26. foreach ($headers as $headerData) {
  27. $operationType = $headerData['operation'];
  28. $headerName = $headerData['name'];
  29. $headerValue = $headerData['value'];
  31. $results[$headerName] = $this->processHeader($operationType, $headerName, $headerValue);
  32. }
  34. return $results;
  35. }
  38. private function processHeader(string $operationType, string $headerName, string $headerValue): array {
  39. $retries = 0;
  40. $success = false;
  42. while ($retries < $this->maxRetries) {
  43. try {
  44. // Simulate header metadata operation (replace with your actual API call)
  45. $result = $this->executeOperation($operationType, $headerName, $headerValue);
  47. if ($result === true) {
  48. $success = true;
  49. break; // Operation successful, exit retry loop
  50. } else {
  51. // Simulate an error.
  52. // For a real application, log the error and handle it appropriately.
  53. //error_log("Header operation failed: " . $operationType . " - " . $headerName . " - " . $headerValue);
  54. // You might want to add more specific error handling here based on the $result value.
  56. }
  57. } catch (Exception $e) {
  58. // Handle exceptions (e.g., network errors, API errors)
  59. //error_log("Exception during header operation: " . $e->getMessage());
  60. $retries++;
  62. if ($retries < $this->maxRetries) {
  63. sleep($this->retryInterval);
  64. } else {
  65. $success = false;
  66. break; // Max retries reached
  67. }
  68. }
  69. }
  71. return ['status' => $success ? 'success' : 'failure', 'message' => $success ? null : 'Operation failed after multiple retries.'];
  72. }
  75. /**
  76. * Placeholder for the actual API call to update or create header metadata.
  77. * Replace this with your actual implementation.
  78. * @param string $operation
  79. * @param string $headerName
  80. * @param string $headerValue
  81. * @return bool|string
  82. * @throws Exception
  83. */
  84. private function executeOperation(string $operation, string $headerName, string $headerValue)
  85. {
  86. // Simulate different outcomes based on operation type.
  87. switch ($operation) {
  88. case 'create':
  89. // Simulate successful creation
  90. if (rand(0, 1) == 0) {
  91. return true;
  92. } else {
  93. throw new Exception("Simulated creation error");
  94. }
  95. case 'update':
  96. // Simulate successful update
  97. if (rand(0, 1) == 0) {
  98. return true;
  99. } else {
  100. throw new Exception("Simulated update error");
  101. }
  102. case 'delete':
  103. // Simulate successful deletion
  104. if (rand(0, 1) == 0) {
  105. return true;
  106. } else {
  107. throw new Exception("Simulated delete error");
  108. }
  109. default:
  110. throw new Exception("Invalid operation type: " . $operation);
  111. }
  112. }
  113. }
  115. // Example Usage
  116. $batcher = new HeaderMetadataBatcher();
  118. $headersToProcess = [

Add your comment