added composer.json and needed libs

curweather/vendor/cmfcmf/openweathermap-php-api/Cmfcmf/OpenWeatherMap/AbstractCache.php

@@ -0,0 +1,69 @@
+<?php
+/**
+ * OpenWeatherMap-PHP-API — A php api to parse weather data from http://www.OpenWeatherMap.org .
+ *
+ * @license MIT
+ *
+ * Please see the LICENSE file distributed with this source code for further
+ * information regarding copyright and licensing.
+ *
+ * Please visit the following links to read about the usage policies and the license of
+ * OpenWeatherMap before using this class:
+ *
+ * @see http://www.OpenWeatherMap.org
+ * @see http://www.OpenWeatherMap.org/terms
+ * @see http://openweathermap.org/appid
+ */
+
+namespace Cmfcmf\OpenWeatherMap;
+
+/**
+ * Abstract cache class to be overwritten by custom cache implementations.
+ */
+abstract class AbstractCache
+{
+    /**
+     * @var int $seconds Cache time in seconds.
+     */
+    protected $seconds;
+
+    /**
+     * Checks whether a cached weather data is available.
+     *
+     * @param string $url The unique url of the cached content.
+     *
+     * @return bool False if no cached information is available, otherwise true.
+     *
+     * You need to check if a cached result is outdated here. Return false in that case.
+     */
+    abstract public function isCached($url);
+
+    /**
+     * Returns cached weather data.
+     *
+     * @param string $url The unique url of the cached content.
+     *
+     * @return string|bool The cached data if it exists, false otherwise.
+     */
+    abstract public function getCached($url);
+
+    /**
+     * Saves cached weather data.
+     *
+     * @param string $url     The unique url of the cached content.
+     * @param string $content The weather data to cache.
+     *
+     * @return bool True on success, false on failure.
+     */
+    abstract public function setCached($url, $content);
+
+    /**
+     * Set after how much seconds the cache shall expire.
+     *
+     * @param int $seconds
+     */
+    public function setSeconds($seconds)
+    {
+        $this->seconds = $seconds;
+    }
+}