org.springframework.data.redis.VersionParser 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;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.springframework.lang.Nullable;
/**
* Central class for reading version string (eg. {@literal 1.3.1}) into {@link Version}.
*
* @author Christoph Strobl
* @since 1.3
* @deprecated since 2.0, use {@link org.springframework.data.util.Version}.
*/
public class VersionParser {
private static final Pattern VERSION_MATCHER = Pattern.compile("([0-9]+)\\.([0-9]+)(\\.([0-9]+))?(.*)");
/**
* Parse version string {@literal eg. 1.1.1} to {@link Version}.
*
* @param version can be {@literal null}.
* @return never {@literal null}.
*/
public static Version parseVersion(@Nullable String version) {
if (version == null) {
return Version.UNKNOWN;
}
Matcher matcher = VERSION_MATCHER.matcher(version);
if (matcher.matches()) {
String major = matcher.group(1);
String minor = matcher.group(2);
String patch = matcher.group(4);
return new Version(Integer.parseInt(major), minor != null ? Integer.parseInt(minor) : 0,
patch != null ? Integer.parseInt(patch) : 0);
}
return Version.UNKNOWN;
}
}