Allow to configure log levels (#950)

* Update Chain.php

Allow to configure log levels

* Do use constructor for log level defaults

Author: holtkamp

src/Provider/Chain/Chain.php

@@ -19,6 +19,7 @@
 use Geocoder\Provider\Provider;
 use Psr\Log\LoggerAwareInterface;
 use Psr\Log\LoggerAwareTrait;
+use Psr\Log\LogLevel;
 
 /**
  * @author Markus Bachmann <[email protected]>
@@ -27,6 +28,16 @@ final class Chain implements Provider, LoggerAwareInterface
 {
     use LoggerAwareTrait;
 
+    /**
+     * @var string
+     */
+    private $geocodeQueryLogLevel = LogLevel::ALERT;
+
+    /**
+     * @var string
+     */
+    private $reverseQueryLogLevel = LogLevel::ALERT;
+
     /**
      * @var Provider[]
      */
@@ -40,6 +51,16 @@ public function __construct(array $providers = [])
         $this->providers = $providers;
     }
 
+    public function setGeocodeQueryLogLevel(string $level)
+    {
+        $this->geocodeQueryLogLevel = $level;
+    }
+
+    public function setReverseQueryLogLevel(string $level)
+    {
+        $this->reverseQueryLogLevel = $level;
+    }
+
     /**
      * {@inheritdoc}
      */
@@ -54,7 +75,7 @@ public function geocodeQuery(GeocodeQuery $query): Collection
                 }
             } catch (\Throwable $e) {
                 $this->log(
-                    'alert',
+                    $this->geocodeQueryLogLevel,
                     'Provider "{providerName}" could not geocode address: "{address}".',
                     [
                         'exception' => $e,
@@ -83,7 +104,7 @@ public function reverseQuery(ReverseQuery $query): Collection
             } catch (\Throwable $e) {
                 $coordinates = $query->getCoordinates();
                 $this->log(
-                    'alert',
+                    $this->reverseQueryLogLevel,
                     sprintf('Provider "%s" could reverse coordinates: %f, %f.', $provider->getName(), $coordinates->getLatitude(), $coordinates->getLongitude()),
                     ['exception' => $e]
                 );