package com.lambdaworks.redis.cluster;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Proxy;
import com.lambdaworks.redis.RedisClusterConnection;
import com.lambdaworks.redis.api.sync.RedisCommands;
import com.lambdaworks.redis.cluster.api.StatefulRedisClusterConnection;
import com.lambdaworks.redis.cluster.api.sync.RedisClusterCommands;
import com.lambdaworks.redis.cluster.models.partitions.ClusterPartitionParser;
import com.lambdaworks.redis.cluster.models.partitions.Partitions;
import com.lambdaworks.redis.cluster.models.partitions.RedisClusterNode;
/**
* @author Mark Paluch
* @since 3.0
*/
public class ClusterTestUtil {
/**
* Retrieve the cluster node Id from the {@code connection}.
*
* @param connection
* @return
*/
public static String getNodeId(RedisClusterCommands<?, ?> connection) {
RedisClusterNode ownPartition = getOwnPartition(connection);
if (ownPartition != null) {
return ownPartition.getNodeId();
}
return null;
}
/**
* Retrieve the {@link RedisClusterNode} from the {@code connection}.
*
* @param connection
* @return
*/
public static RedisClusterNode getOwnPartition(RedisClusterCommands<?, ?> connection) {
Partitions partitions = ClusterPartitionParser.parse(connection.clusterNodes());
for (RedisClusterNode partition : partitions) {
if (partition.getFlags().contains(RedisClusterNode.NodeFlag.MYSELF)) {
return partition;
}
}
return null;
}
/**
* Flush databases of all cluster nodes.
*
* @param connection the cluster connection
*/
public static void flushDatabaseOfAllNodes(StatefulRedisClusterConnection<?, ?> connection) {
for (RedisClusterNode node : connection.getPartitions()) {
try {
connection.getConnection(node.getNodeId()).sync().flushall();
connection.getConnection(node.getNodeId()).sync().flushdb();
} catch (Exception o_O) {
// ignore
}
}
}
/**
* Create an API wrapper which exposes the {@link RedisCommands} API by using internally a cluster connection.
*
* @param connection
* @return
*/
public static RedisCommands<String, String> redisCommandsOverCluster(
StatefulRedisClusterConnection<String, String> connection) {
StatefulRedisClusterConnectionImpl clusterConnection = (StatefulRedisClusterConnectionImpl) connection;
InvocationHandler h = clusterConnection.syncInvocationHandler();
return (RedisCommands<String, String>) Proxy.newProxyInstance(ClusterTestUtil.class.getClassLoader(),
new Class[] { RedisCommands.class }, h);
}
}