feat(logging): add json console logger backend

cherry-picked the JSONConsoleLogger from the main branch in order to release a tag for lower flow versions of this package

Classes/Backend/JSONConsoleLogger.php

@@ -0,0 +1,99 @@
+<?php
+
+declare(strict_types=1);
+
+namespace t3n\FlowLog\Backend;
+
+use Google\Cloud\BigQuery\Date;
+use Neos\Flow\Annotations as Flow;
+use Neos\Flow\Log\Backend\ConsoleBackend;
+
+class JSONConsoleLogger extends ConsoleBackend
+{
+    /**
+     * @Flow\InjectConfiguration(package="t3n.FlowLog.serviceContext")
+     *
+     * @var mixed[]
+     */
+    protected $serviceContext;
+
+    public function open(): void
+    {
+        parent::open();
+        $this->severityLabels = [
+            LOG_EMERG => 'emergency',
+            LOG_ALERT => 'alert    ',
+            LOG_CRIT => 'critical ',
+            LOG_ERR => 'error    ',
+            LOG_WARNING => 'warning  ',
+            LOG_NOTICE => 'notice   ',
+            LOG_INFO => 'info     ',
+            LOG_DEBUG => 'debug    ',
+        ];
+    }
+
+    /**
+     * @param mixed $additionalData A variable containing more information about the event to be logged
+     */
+    public function append(
+        string $message,
+        int $severity = LOG_INFO,
+        $additionalData = null,
+        ?string $packageKey = null,
+        ?string $className = null,
+        ?string $methodName = null
+    ): void {
+        if ($severity > $this->severityThreshold) {
+            return;
+        }
+
+        $additionalData = $additionalData ?? [];
+
+        if ($packageKey !== null) {
+            $additionalData['packageKey'] = $packageKey;
+        }
+
+        if ($className !== null) {
+            $additionalData['className'] = $className;
+        }
+
+        if ($methodName !== null) {
+            $additionalData['methodName'] = $methodName;
+        }
+
+        $severityLabel = $this->severityLabels[$severity] ?? 'unknown';
+        try {
+            $data = [
+                'severity' => $severityLabel,
+                'service' => $this->serviceContext['service'],
+                'version' => $this->serviceContext['version'],
+                'message' => $message,
+                'additionalData' => json_encode($additionalData, JSON_THROW_ON_ERROR),
+                'date' => new Date(new \DateTime('now')),
+                'datetime' => new \DateTime('now')
+            ];
+            $output = json_encode($data);
+        } catch (\Exception $e) {
+            $data = [
+                'severity' => $this->severityLabels[LOG_WARNING],
+                'service' => $this->serviceContext['service'],
+                'version' => $this->serviceContext['version'],
+                'message' => 'Could not decode additional data of log message.',
+                'additionalData' => [
+                    'previousLog' => [
+                        'message' => $message,
+                        'severity' => $severityLabel,
+                    ],
+                    'stackTrace' => $e->getTraceAsString()
+                ],
+                'date' => new Date(new \DateTime('now')),
+                'datetime' => new \DateTime('now')
+            ];
+            $output = json_encode($data);
+        } finally {
+            if (is_resource($this->streamHandle)) {
+                fwrite($this->streamHandle, $output . PHP_EOL);
+            }
+        }
+    }
+}

Configuration/Settings.yaml

@@ -4,4 +4,18 @@ t3n:
       service: 'flow-app'
       version: 'master'
 
-
+Neos:
+  Flow:
+    log:
+      psr3:
+        'Neos\Flow\Log\PsrLoggerFactory':
+          bigQueryLogger:
+            default:
+              class: 't3n\FlowLog\Backend\BigQueryLogger'
+              options:
+                loggerName: 'bigQueryLogger'
+          jsonConsoleLogger:
+            default:
+              class: 't3n\FlowLog\Backend\JSONConsoleLogger'
+              options:
+                loggerName: 'jsonConsoleLogger'