Add WC_Log_Handler_Interface

Abstract class `WC_Log_Handler` implements interface

includes/abstracts/abstract-wc-log-handler.php

@@ -11,20 +11,7 @@ if ( ! defined( 'ABSPATH' ) ) {
  * @category       Abstract Class
  * @author         WooThemes
  */
-abstract class WC_Log_Handler {
-
-
-	/**
-	 * Handle a log entry.
-	 *
-	 * @param int $timestamp Log timestamp.
-	 * @param string $level emergency|alert|critical|error|warning|notice|info|debug
-	 * @param string $message Log message.
-	 * @param array $context Additional information for log handlers.
-	 *
-	 * @return bool False if value was not handled and true if value was handled.
-	 */
-	abstract public function handle( $timestamp, $level, $message, $context );
+abstract class WC_Log_Handler implements WC_Log_Handler_Interface {
 
 	/**
 	 * Formats a timestamp for use in log messages.

includes/interfaces/class-wc-log-handler-interface.php

@@ -0,0 +1,27 @@
+<?php
+if ( ! defined( 'ABSPATH' ) ) {
+	exit; // Exit if accessed directly
+}
+
+/**
+ * WC Log Handler Interface
+ *
+ * Functions that must be defined to correctly fulfill log handler API.
+ *
+ * @version        1.0.0
+ * @category       Interface
+ * @author         WooThemes
+ */
+interface WC_Log_Handler_Interface {
+	/**
+	 * Handle a log entry.
+	 *
+	 * @param int $timestamp Log timestamp.
+	 * @param string $level emergency|alert|critical|error|warning|notice|info|debug
+	 * @param string $message Log message.
+	 * @param array $context Additional information for log handlers.
+	 *
+	 * @return bool False if value was not handled and true if value was handled.
+	 */
+	public function handle( $timestamp, $level, $message, $context );
+}

woocommerce.php

@@ -294,6 +294,7 @@ final class WooCommerce {
 		include_once( WC_ABSPATH . 'includes/interfaces/class-wc-product-variable-data-store-interface.php' );
 		include_once( WC_ABSPATH . 'includes/interfaces/class-wc-shipping-zone-data-store-interface.php' );
 		include_once( WC_ABSPATH . 'includes/interfaces/class-wc-logger-interface.php' );
+		include_once( WC_ABSPATH . 'includes/interfaces/class-wc-log-handler-interface.php' );
 		include_once( WC_ABSPATH . 'includes/abstracts/abstract-wc-payment-token.php' ); // Payment Tokens
 		include_once( WC_ABSPATH . 'includes/abstracts/abstract-wc-product.php' ); // Products
 		include_once( WC_ABSPATH . 'includes/abstracts/abstract-wc-order.php' ); // Orders