Added Redis client (Jedis).

rapidoid-app/pom.xml

@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<parent>
@@ -42,6 +43,13 @@
 			<artifactId>rapidoid-oauth</artifactId>
 			<version>${project.version}</version>
 		</dependency>
+
+		<dependency>
+			<groupId>redis.clients</groupId>
+			<artifactId>jedis</artifactId>
+			<version>2.7.3</version>
+		</dependency>
+
 		<dependency>
 			<groupId>org.rapidoid</groupId>
 			<artifactId>rapidoid-test-appctx-helper</artifactId>

rapidoid-app/src/main/java/org/rapidoid/app/Dollar.java

@@ -25,6 +25,8 @@
 import org.rapidoid.sql.SQLAPI;
 import org.rapidoid.util.U;
 
+import redis.clients.jedis.Jedis;
+
 /*
  * #%L
  * rapidoid-app
@@ -130,4 +132,8 @@ public DollarPage page(Object value) {
 		return page(value, Collections.EMPTY_MAP);
 	}
 
+	public final Jedis jedis() {
+		return JedisTool.get();
+	}
+
 }

rapidoid-app/src/main/java/org/rapidoid/app/JedisTool.java

@@ -0,0 +1,51 @@
+package org.rapidoid.app;
+
+/*
+ * #%L
+ * rapidoid-app
+ * %%
+ * Copyright (C) 2014 - 2015 Nikolche Mihajlovski and contributors
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
+
+import org.rapidoid.annotation.Authors;
+import org.rapidoid.annotation.Since;
+import org.rapidoid.cls.Cls;
+import org.rapidoid.config.Conf;
+import org.rapidoid.util.U;
+
+import redis.clients.jedis.Jedis;
+
+@Authors("Nikolche Mihajlovski")
+@Since("4.2.0")
+public class JedisTool {
+
+	private static Jedis jedis;
+
+	public static Jedis get() {
+		if (jedis == null) {
+			String host = Conf.nested("redis", "host");
+			host = U.or(host, "localhost");
+
+			Object rport = Conf.nested("redis", "port");
+			int port = rport != null ? Cls.convert(rport, int.class) : 6379;
+
+			jedis = new Jedis(host, port);
+		}
+
+		return jedis;
+	}
+
+}