Convert monolithic one-file-lib to a proper PSR-0 file tree

lib/Predis/Network/UnixDomainSocketConnection.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace Predis\Network;
+
+use Predis\ConnectionParameters;
+use Predis\CommunicationException;
+
+class UnixDomainSocketConnection extends TcpConnection {
+    protected function checkParameters(ConnectionParameters $parameters) {
+        if ($parameters->scheme != 'unix') {
+            throw new \InvalidArgumentException("Invalid scheme: {$parameters->scheme}");
+        }
+        $pathToSocket = $parameters->path;
+        if (!isset($pathToSocket)) {
+            throw new \InvalidArgumentException('Missing UNIX domain socket path');
+        }
+        if (!file_exists($pathToSocket)) {
+            throw new \InvalidArgumentException("Could not find $pathToSocket");
+        }
+        return $parameters;
+    }
+
+    protected function createResource() {
+        $uri = sprintf('unix:///%s', $this->_params->path);
+        $connectFlags = STREAM_CLIENT_CONNECT;
+        if ($this->_params->connection_persistent) {
+            $connectFlags |= STREAM_CLIENT_PERSISTENT;
+        }
+        $this->_socket = @stream_socket_client(
+            $uri, $errno, $errstr, $this->_params->connection_timeout, $connectFlags
+        );
+        if (!$this->_socket) {
+            $this->onCommunicationException(trim($errstr), $errno);
+        }
+    }
+}