Add more specific exceptions

src/Connection.php

@@ -5,10 +5,13 @@ declare(strict_types=1);
 namespace Nsq;
 
 use Composer\InstalledVersions;
+use Nsq\Exception\ConnectionFail;
+use Nsq\Exception\UnexpectedResponse;
 use PHPinnacle\Buffer\ByteBuffer;
 use Psr\Log\LoggerAwareTrait;
 use Psr\Log\LoggerInterface;
 use Psr\Log\NullLogger;
+use Socket\Raw\Exception;
 use Socket\Raw\Factory;
 use Socket\Raw\Socket;
 use Throwable;
@@ -65,7 +68,12 @@ abstract class Connection
 
     public function connect(): void
     {
-        $this->socket = (new Factory())->createClient($this->address);
+        try {
+            $this->socket = (new Factory())->createClient($this->address);
+        } catch (Exception $e) {
+            throw ConnectionFail::fromThrowable($e);
+        }
+
         $this->send('  V2');
 
         $body = json_encode($this->features, JSON_THROW_ON_ERROR | JSON_FORCE_OBJECT);
@@ -121,12 +129,12 @@ abstract class Connection
 
         try {
             $socket->write($buffer);
-        } catch (Throwable $e) {
+        } catch (Exception $e) {
             $this->closed = true;
 
             $this->logger->error($e->getMessage(), ['exception' => $e]);
 
-            throw $e;
+            throw ConnectionFail::fromThrowable($e);
         }
 
         return $this;
@@ -162,7 +170,7 @@ abstract class Connection
         $response = $this->receive(0.1);
 
         if (null === $response) {
-            throw new Exception('Response was expected, but null received.');
+            throw new UnexpectedResponse('Response was expected, but null received.');
         }
 
         return $response;
@@ -171,7 +179,7 @@ abstract class Connection
     private function socket(): Socket
     {
         if ($this->closed) {
-            throw new Exception('This connection is closed, create new one.');
+            throw new ConnectionFail('This connection is closed, create new one.');
         }
 
         if (null === $this->socket) {

src/Exception.php

@@ -1,9 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Nsq;
-
-final class Exception extends \RuntimeException implements NsqException
-{
-}

src/Exception/ConnectionFail.php

@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Nsq\Exception;
+
+use RuntimeException;
+use Throwable;
+
+final class ConnectionFail extends RuntimeException implements NsqException
+{
+    public static function fromThrowable(Throwable $throwable): self
+    {
+        return new self($throwable->getMessage(), (int) $throwable->getCode(), $throwable);
+    }
+}

src/Exception/MessageAlreadyFinished.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Nsq\Exception;
+
+use Nsq\Message;
+use RuntimeException;
+
+final class MessageAlreadyFinished extends RuntimeException implements NsqException
+{
+    public static function finish(Message $message): self
+    {
+        return new self('Can\'t finish message as it already finished.');
+    }
+
+    public static function requeue(Message $message): self
+    {
+        return new self('Can\'t requeue message as it already finished.');
+    }
+
+    public static function touch(Message $message): self
+    {
+        return new self('Can\'t touch message as it already finished.');
+    }
+}

src/Exception/NsqError.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Nsq\Exception;
+
+use RuntimeException;
+
+final class NsqError extends RuntimeException implements NsqException
+{
+}

src/Exception/NsqException.php

@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Nsq;
+namespace Nsq\Exception;
 
 use Throwable;
 

src/Exception/UnexpectedResponse.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Nsq\Exception;
+
+use RuntimeException;
+
+final class UnexpectedResponse extends RuntimeException implements NsqException
+{
+}

src/Message.php

@@ -4,6 +4,8 @@ declare(strict_types=1);
 
 namespace Nsq;
 
+use Nsq\Exception\MessageAlreadyFinished;
+
 final class Message
 {
     /**
@@ -48,7 +50,7 @@ final class Message
     public function finish(): void
     {
         if ($this->finished) {
-            throw new Exception('Can\'t finish message as it already finished.');
+            throw MessageAlreadyFinished::finish($this);
         }
 
         $this->consumer->fin($this->id);
@@ -58,7 +60,7 @@ final class Message
     public function requeue(int $timeout): void
     {
         if ($this->finished) {
-            throw new Exception('Can\'t requeue message as it already finished.');
+            throw MessageAlreadyFinished::requeue($this);
         }
 
         $this->consumer->req($this->id, $timeout);
@@ -68,7 +70,7 @@ final class Message
     public function touch(): void
     {
         if ($this->finished) {
-            throw new Exception('Can\'t touch message as it already finished.');
+            throw MessageAlreadyFinished::touch($this);
         }
 
         $this->consumer->touch($this->id);

src/Response.php

@@ -4,6 +4,8 @@ declare(strict_types=1);
 
 namespace Nsq;
 
+use Nsq\Exception\NsqError;
+use Nsq\Exception\UnexpectedResponse;
 use PHPinnacle\Buffer\ByteBuffer;
 
 final class Response
@@ -27,15 +29,15 @@ final class Response
     public function okOrFail(): void
     {
         if (self::TYPE_ERROR === $this->type) {
-            throw new Exception($this->buffer->bytes());
+            throw new NsqError($this->buffer->bytes());
         }
 
         if (self::TYPE_RESPONSE !== $this->type) {
-            throw new Exception(sprintf('"%s" type expected, but "%s" received.', self::TYPE_RESPONSE, $this->type));
+            throw new UnexpectedResponse(sprintf('"%s" type expected, but "%s" received.', self::TYPE_RESPONSE, $this->type));
         }
 
         if (self::OK !== $this->buffer->bytes()) {
-            throw new Exception(sprintf('OK response expected, but "%s" received.', $this->buffer->bytes()));
+            throw new UnexpectedResponse(sprintf('OK response expected, but "%s" received.', $this->buffer->bytes()));
         }
     }
 
@@ -47,7 +49,7 @@ final class Response
     public function toMessage(Consumer $reader): Message
     {
         if (self::TYPE_MESSAGE !== $this->type) {
-            throw new Exception(sprintf('Expecting "%s" type, but NSQ return: "%s"', self::TYPE_MESSAGE, $this->type));
+            throw new UnexpectedResponse(sprintf('Expecting "%s" type, but NSQ return: "%s"', self::TYPE_MESSAGE, $this->type));
         }
 
         $buffer = new ByteBuffer($this->buffer->bytes());

src/Subscriber.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace Nsq;
 
 use Generator;
+use InvalidArgumentException;
 use function get_debug_type;
 use function sprintf;
 
@@ -41,7 +42,7 @@ final class Subscriber
                 $newTimeout = yield null;
 
                 if (!\is_float($newTimeout)) {
-                    throw new Exception(sprintf('Timeout must be float, "%s" given.', get_debug_type($newTimeout)));
+                    throw new InvalidArgumentException(sprintf('Timeout must be float, "%s" given.', get_debug_type($newTimeout)));
                 }
 
                 $timeout = $newTimeout;