complete chapter25

chapter25.md

@@ -1,7 +1,86 @@
 ### 第二十五章 世界需要和平 －－－ 中介者模式
 
 ```php
+<?php
 
+abstract class Mediator
+{
+    abstract public function send($message, Colleague $colleague);
+}
+
+abstract class Colleague
+{
+    protected $mediator;
+
+    function __construct(Mediator $mediator)
+    {
+        $this->mediator = $mediator;
+    }
+}
+
+class ConcreteMediator extends Mediator
+{
+    private $colleague1;
+    private $colleague2;
+
+    public function setColleague1(Colleague $colleague)
+    {
+        $this->colleague1 = $colleague;
+    }
+
+    public function setColleague2(Colleague $colleague)
+    {
+        $this->colleague2 = $colleague;
+    }
+
+    public function send($message, Colleague $colleague)
+    {
+        if($this->colleague1 == $colleague)
+        {
+            $this->colleague2->notify($message);
+        } else {
+            $this->colleague1->notify($message);
+        }
+    }
+}
+
+class ConcreteColleague1 extends Colleague
+{
+    public function send($message)
+    {
+        $this->mediator->send($message, $this);
+    }
+
+    public function notify($message)
+    {
+        echo "ConcreteColleague1 ".$message."\n";
+    }
+}
+
+class ConcreteColleague2 extends Colleague
+{
+    public function send($message)
+    {
+        $this->mediator->send($message, $this);
+    }
+
+    public function notify($message)
+    {
+        echo "ConcreteColleague2 ".$message."\n";;
+    }
+}
+
+//client
+
+$mediator = new ConcreteMediator();
+$c1 = new ConcreteColleague1($mediator);
+$c2 = new ConcreteColleague2($mediator);
+
+$mediator->setColleague1($c1);
+$mediator->setColleague2($c2);
+
+$c1->send('do you eat?');
+$c2->send('no, do you want to invite me to dinner?');
 ```
 
 总结

codes/Mediator.php

@@ -2,7 +2,7 @@
 
 abstract class Mediator
 {
-	abstract public send($message, Colleague $colleague);
+	abstract public function send($message, Colleague $colleague);
 }
 
 abstract class Colleague
@@ -22,21 +22,21 @@ class ConcreteMediator extends Mediator
 
 	public function setColleague1(Colleague $colleague)
 	{
-		$this->colleague1 = $colleague1;
+		$this->colleague1 = $colleague;
 	}
 
 	public function setColleague2(Colleague $colleague)
 	{
-		$this->colleague2 = $colleague2;
+		$this->colleague2 = $colleague;
 	}
 
 	public function send($message, Colleague $colleague)
 	{
 		if($this->colleague1 == $colleague)
 		{
-			$this->colleague2->notify();
+			$this->colleague2->notify($message);
 		} else {
-			$this->colleague1->notify();
+			$this->colleague1->notify($message);
 		}
 	}
 }
@@ -45,25 +45,25 @@ class ConcreteColleague1 extends Colleague
 {
 	public function send($message)
 	{
-		$this->mediator->send($message, this);
+		$this->mediator->send($message, $this);
 	}
 
 	public function notify($message)
 	{
-		echo "ConcreteColleague1\n";;
+		echo "ConcreteColleague1 ".$message."\n";
 	}
 }
 
 class ConcreteColleague2 extends Colleague
 {
 	public function send($message)
 	{
-		$this->mediator->send($message, this);
+		$this->mediator->send($message, $this);
 	}
 
 	public function notify($message)
 	{
-		echo "ConcreteColleague2\n";;
+		echo "ConcreteColleague2 ".$message."\n";;
 	}
 }