/*
* Copyright 2011-2014 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 org.springframework.data.redis;
import org.springframework.data.redis.connection.RedisConnection;
/**
* Utilities for examining the Redis version
*
* @author Jennifer Hickey
* @author Christoph Strobl
*/
public abstract class RedisVersionUtils {
public static Version getRedisVersion(RedisConnection connection) {
return parseVersion((String) connection.info().get("redis_version"));
}
public static boolean atLeast(String version, RedisConnection connection) {
return getRedisVersion(connection).compareTo(parseVersion(version)) >= 0;
}
public static boolean atMost(String version, RedisConnection connection) {
return getRedisVersion(connection).compareTo(parseVersion(version)) <= 0;
}
public static Version parseVersion(String version) {
Version resolvedVersion = VersionParser.parseVersion(version);
if (Version.UNKNOWN.equals(resolvedVersion)) {
throw new IllegalArgumentException("Specified version cannot be parsed");
}
return resolvedVersion;
}
}