#149 - Add Redis repository support sample.

Bumped Spring Data Redis version to 1.7 RC1. Added JUnit Rule for Embedded Redis Server.

Original pull request: #162.

redis/util/pom.xml

@@ -21,6 +21,12 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-data-redis</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>com.github.kstyrc</groupId>
+			<artifactId>embedded-redis</artifactId>
+			<version>0.6</version>
+			<optional>true</optional>
+		</dependency>
 	</dependencies>
 
 </project>

redis/util/src/main/java/example/springdata/redis/test/util/EmbeddedRedisServer.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * 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.
+ */
+package example.springdata.redis.test.util;
+
+import java.io.IOException;
+
+import org.junit.rules.ExternalResource;
+
+import redis.embedded.RedisServer;
+
+/**
+ * JUnit rule implementation to start and shut down an embedded Redis instance.
+ * 
+ * @author Christoph Strobl
+ * @author Oliver Gierke
+ */
+public class EmbeddedRedisServer extends ExternalResource {
+
+	private static final int DEFAULT_PORT = 6379;
+	private RedisServer server;
+	private int port = DEFAULT_PORT;
+	private boolean suppressExceptions = false;
+
+	public EmbeddedRedisServer() {
+
+	}
+
+	protected EmbeddedRedisServer(int port) {
+		this.port = port;
+	}
+
+	public static EmbeddedRedisServer runningAt(Integer port) {
+		return new EmbeddedRedisServer(port != null ? port : DEFAULT_PORT);
+	}
+
+	public EmbeddedRedisServer suppressExceptions() {
+		this.suppressExceptions = true;
+		return this;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.junit.rules.ExternalResource#before()
+	 */
+	@Override
+	protected void before() throws IOException {
+
+		try {
+
+			this.server = new RedisServer(this.port);
+			this.server.start();
+		} catch (Exception e) {
+			if (!suppressExceptions) {
+				throw e;
+			}
+		}
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.junit.rules.ExternalResource#after()
+	 */
+	@Override
+	protected void after() {
+
+		try {
+			this.server.stop();
+		} catch (Exception e) {
+			if (!suppressExceptions) {
+				throw e;
+			}
+		}
+	}
+}