init commit

src/redis/redisclientprovider.js

@@ -0,0 +1,49 @@
+import clone from 'clone';
+import redis from 'redis';
+import Promise from 'bluebird';
+Promise.promisifyAll(redis.RedisClient.prototype);
+Promise.promisifyAll(redis.Multi.prototype);
+
+/**
+ * Provider for RedisClients.
+ */
+class RedisClientProvider {
+    /**
+     * Create a new RedisClientProvider.
+     *
+     * @param {Object} redisConfig default configuration to use
+     * @see {@link https://www.npmjs.com/package/redis}
+     */
+    constructor(redisConfig) {
+        this.redisConfig = redisConfig;
+    }
+
+    /**
+     * Get a RedisClient.
+     *
+     * @param {Object} options optional override configuration for the RedisClient
+     * @return {RedisClient} redis client using the provided configuration
+     */
+    get(options = {}) {
+        const config = clone(this.redisConfig);
+        for (const key in options) {
+            config[key] = options[key];
+        }
+
+        const client = redis.createClient(config);
+        client.on('error', this._defaultErrorHandler);
+
+        return client;
+    }
+
+    /**
+     * Handle an <code>'error'</code> event from a provided client.
+     *
+     * @param {Error} err error from the client
+     * @private
+     */
+    _defaultErrorHandler(_err) {
+    }
+}
+
+export default RedisClientProvider;