replaced Exceptions to dir with name Exception without s on the end

reduced complexity Stream class

README.md

@@ -39,9 +39,9 @@ $stream = new \Stream\Stream($path, $protocol, $port, $driver);
 
 **path** - Path to file on system or ip address in network or hostname which we will work
 
-**protocol** - String value of protocol type, can be Stream::PROTOCOL_TCP,Stream::PROTOCOL_UDP,Stream::PROTOCOL_UNIX
+**protocol** - String value of protocol type, can be Connection::PROTOCOL_TCP, Connection::PROTOCOL_UDP, Connection::PROTOCOL_UNIX
 
-**port** - Integer value of port to connect. Not needs if protocol Stream::PROTOCOL_UNIX. Default value = 0.
+**port** - Integer value of port to connect. Not needs if protocol Connection::PROTOCOL_UNIX. Default value = 0.
 
 **driver** - Object implements StreamDriverInterface. If your connection need to change transfer data you need to describe it logic with this object. Default value is null(mean data haven't been changed)
 
@@ -64,4 +64,4 @@ $stream = new \Stream\Stream($path, $protocol, $port, $driver);
 $stream->sendContents($contents);
 ```
 
-**contents** - can contain any data
+**contents** - can contain any string data

src/Stream/Connection.php

@@ -0,0 +1,78 @@
+<?php
+/**
+ * @author KonstantinKuklin <konstantin.kuklin@gmail.com>
+ */
+
+namespace Stream;
+
+class Connection
+{
+    const PROTOCOL_TCP = 'tcp';
+    const PROTOCOL_UDP = 'udp';
+    const PROTOCOL_UNIX = 'unix';
+
+    private $path = null;
+    private $protocol = null;
+    private $port = 0;
+
+    /**
+     * @param string $path
+     * @param string $protocol
+     * @param int    $port
+     *
+     * @throws Exception\PathValidateStreamException
+     * @throws Exception\PortValidateStreamException
+     * @throws Exception\ProtocolValidateStreamException
+     */
+    public function __construct($path, $protocol, $port = 0)
+    {
+        // $this->validatePath($path);
+        Validator::validateProtocol($protocol);
+        // it is doesn't matter what is the port if protocol is UNIX
+        if ($protocol !== self::PROTOCOL_UNIX) {
+            Validator::validatePort($port);
+        }
+        Validator::validatePath($path);
+
+        $this->port = $port;
+        $this->path = $path;
+        $this->protocol = $protocol;
+    }
+
+    /**
+     * @return string
+     */
+    public function getProtocol()
+    {
+        return $this->protocol;
+    }
+
+    /**
+     * @return int
+     */
+    public function getPort()
+    {
+        return $this->port;
+    }
+
+    /**
+     * @return null|string
+     */
+    public function getPath()
+    {
+        return $this->path;
+    }
+
+    /**
+     * @return string
+     */
+    public function getUrlConnection()
+    {
+        $urlConnection = $this->getProtocol() . '://' . $this->getPath();
+        if ($this->getPort() > 0) {
+            $urlConnection .= ':' . $this->getPort();
+        }
+
+        return $urlConnection;
+    }
+} 

src/Stream/DataHandler.php

@@ -0,0 +1,67 @@
+<?php
+/**
+ * @author KonstantinKuklin <konstantin.kuklin@gmail.com>
+ */
+
+namespace Stream;
+
+use Stream\Exception\NotStringStreamException;
+
+class DataHandler
+{
+    private $driver = null;
+
+    public function __construct(StreamDriverInterface $driver = null)
+    {
+        $this->driver = $driver;
+    }
+
+    /**
+     * @param string $data
+     *
+     * @return mixed
+     */
+    public function prepareReceiveData($data)
+    {
+        if ($this->hasDriver()) {
+            return $this->getDriver()->prepareReceiveData($data);
+        }
+
+        return $data;
+    }
+
+    /**
+     * @param mixed $data
+     *
+     * @throws NotStringStreamException
+     * @return string
+     */
+    public function prepareSendData($data)
+    {
+        if ($this->hasDriver()) {
+            $data = $this->getDriver()->prepareSendData($data);
+        }
+
+        if (!is_string($data)) {
+            throw new NotStringStreamException("prepareSendData method must return string.");
+        }
+
+        return $data;
+    }
+
+    /**
+     * @return boolean
+     */
+    private function hasDriver()
+    {
+        return ($this->driver !== null);
+    }
+
+    /**
+     * @return null|StreamDriverInterface
+     */
+    private function getDriver()
+    {
+        return $this->driver;
+    }
+} 

src/Stream/Exceptions/ConnectionStreamException.php → src/Stream/Exception/ConnectionStreamException.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Stream\Exceptions;
+namespace Stream\Exception;
 
 /**
  * @author KonstantinKuklin <konstantin.kuklin@gmail.com>

src/Stream/Exceptions/NotStringStreamException.php → src/Stream/Exception/NotStringStreamException.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Stream\Exceptions;
+namespace Stream\Exception;
 
 /**
  * @author KonstantinKuklin <konstantin.kuklin@gmail.com>

src/Stream/Exception/PathValidateStreamException.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace Stream\Exception;
+
+/**
+ * @author KonstantinKuklin <konstantin.kuklin@gmail.com>
+ */
+class PathValidateStreamException extends ValidateStreamException
+{
+
+}

src/Stream/Exceptions/PortValidateStreamException.php → src/Stream/Exception/PortValidateStreamException.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Stream\Exceptions;
+namespace Stream\Exception;
 
 /**
  * @author KonstantinKuklin <konstantin.kuklin@gmail.com>

src/Stream/Exceptions/ProtocolValidateStreamException.php → src/Stream/Exception/ProtocolValidateStreamException.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Stream\Exceptions;
+namespace Stream\Exception;
 
 /**
  * @author KonstantinKuklin <konstantin.kuklin@gmail.com>

src/Stream/Exceptions/ReadStreamException.php → src/Stream/Exception/ReadStreamException.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Stream\Exceptions;
+namespace Stream\Exception;
 
 /**
  * @author KonstantinKuklin <konstantin.kuklin@gmail.com>

src/Stream/Exceptions/ReceiveMethodStreamException.php → src/Stream/Exception/ReceiveMethodStreamException.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Stream\Exceptions;
+namespace Stream\Exception;
 
 /**
  * @author KonstantinKuklin <konstantin.kuklin@gmail.com>

src/Stream/Exceptions/StreamException.php → src/Stream/Exception/StreamException.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Stream\Exceptions;
+namespace Stream\Exception;
 
 /**
  * @author KonstantinKuklin <konstantin.kuklin@gmail.com>

src/Stream/Exceptions/ValidateStreamException.php → src/Stream/Exception/ValidateStreamException.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Stream\Exceptions;
+namespace Stream\Exception;
 
 /**
  * @author KonstantinKuklin <konstantin.kuklin@gmail.com>