Add WebSocket Support

Fixes gh-35

samples/websocket/src/main/java/sample/config/DataSourceConfig.java

@@ -0,0 +1,24 @@
+package sample.config;
+
+import javax.sql.DataSource;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
+
+@Configuration
+public class DataSourceConfig {
+
+    @Bean
+    public DataSource dataSource() {
+        EmbeddedDatabaseBuilder builder = new EmbeddedDatabaseBuilder();
+        return builder.setType(EmbeddedDatabaseType.H2).build();
+    }
+
+    @Bean
+    public JedisConnectionFactory connectionFactory() throws Exception {
+        return new JedisConnectionFactory();
+    }
+}