org.springframework.data.redis.connection.jedis.JedisVersionUtil Maven / Gradle / Ivy
/*
* Copyright 2014-2018 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.connection.jedis;
import java.io.IOException;
import java.util.Properties;
import org.springframework.core.io.support.PropertiesLoaderUtils;
import org.springframework.data.redis.Version;
import org.springframework.data.redis.VersionParser;
import org.springframework.util.StringUtils;
import redis.clients.jedis.Jedis;
/**
* @author Christoph Strobl
* @since 1.3
*/
public class JedisVersionUtil {
private static Version jedisVersion = parseVersion(resolveJedisVersion());
/**
* @return current {@link redis.clients.jedis.Jedis} version.
*/
public static Version jedisVersion() {
return jedisVersion;
}
/**
* Parse version string {@literal eg. 1.1.1} to {@link Version}.
*
* @param version
* @return
*/
static Version parseVersion(String version) {
return VersionParser.parseVersion(version);
}
/**
* @return true if used jedis version is at minimum {@literal 2.4}.
*/
public static boolean atLeastJedis24() {
return atLeast("2.4");
}
private static String resolveJedisVersion() {
String version = Jedis.class.getPackage().getImplementationVersion();
if (!StringUtils.hasText(version)) {
try {
Properties props = PropertiesLoaderUtils.loadAllProperties("META-INF/maven/redis.clients/jedis/pom.properties");
if (props.containsKey("version")) {
version = props.getProperty("version");
}
} catch (IOException e) {
// ignore this one
}
}
return version;
}
/**
* Compares given version string against current jedis version.
*
* @param version
* @return true in case given version is greater than equal to current one.
*/
public static boolean atLeast(String version) {
return jedisVersion.compareTo(parseVersion(version)) >= 0;
}
/**
* Compares given version string against current jedis version.
*
* @param version
* @return true in case given version is less than equal to current one.
*/
public static boolean atMost(String version) {
return jedisVersion.compareTo(parseVersion(version)) <= 0;
}
}