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include/swiftmailer/lib/classes/Swift/KeyCache/SimpleKeyCacheInputStream.php

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+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2004-2009 Chris Corbyn
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Writes data to a KeyCache using a stream.
+ *
+ * @author Chris Corbyn
+ */
+class Swift_KeyCache_SimpleKeyCacheInputStream implements Swift_KeyCache_KeyCacheInputStream
+{
+    /** The KeyCache being written to */
+    private $keyCache;
+
+    /** The nsKey of the KeyCache being written to */
+    private $nsKey;
+
+    /** The itemKey of the KeyCache being written to */
+    private $itemKey;
+
+    /** A stream to write through on each write() */
+    private $writeThrough = null;
+
+    /**
+     * Set the KeyCache to wrap.
+     */
+    public function setKeyCache(Swift_KeyCache $keyCache)
+    {
+        $this->keyCache = $keyCache;
+    }
+
+    /**
+     * Specify a stream to write through for each write().
+     */
+    public function setWriteThroughStream(Swift_InputByteStream $is)
+    {
+        $this->writeThrough = $is;
+    }
+
+    /**
+     * Writes $bytes to the end of the stream.
+     *
+     * @param string                $bytes
+     * @param Swift_InputByteStream $is    optional
+     */
+    public function write($bytes, Swift_InputByteStream $is = null)
+    {
+        $this->keyCache->setString(
+            $this->nsKey, $this->itemKey, $bytes, Swift_KeyCache::MODE_APPEND
+            );
+        if (isset($is)) {
+            $is->write($bytes);
+        }
+        if (isset($this->writeThrough)) {
+            $this->writeThrough->write($bytes);
+        }
+    }
+
+    /**
+     * Not used.
+     */
+    public function commit()
+    {
+    }
+
+    /**
+     * Not used.
+     */
+    public function bind(Swift_InputByteStream $is)
+    {
+    }
+
+    /**
+     * Not used.
+     */
+    public function unbind(Swift_InputByteStream $is)
+    {
+    }
+
+    /**
+     * Flush the contents of the stream (empty it) and set the internal pointer
+     * to the beginning.
+     */
+    public function flushBuffers()
+    {
+        $this->keyCache->clearKey($this->nsKey, $this->itemKey);
+    }
+
+    /**
+     * Set the nsKey which will be written to.
+     *
+     * @param string $nsKey
+     */
+    public function setNsKey($nsKey)
+    {
+        $this->nsKey = $nsKey;
+    }
+
+    /**
+     * Set the itemKey which will be written to.
+     *
+     * @param string $itemKey
+     */
+    public function setItemKey($itemKey)
+    {
+        $this->itemKey = $itemKey;
+    }
+
+    /**
+     * Any implementation should be cloneable, allowing the clone to access a
+     * separate $nsKey and $itemKey.
+     */
+    public function __clone()
+    {
+        $this->writeThrough = null;
+    }
+}