org.springframework.boot.SpringBootVersion Maven / Gradle / Ivy
/*
* Copyright 2012-2018 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
*
* https://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.boot;
/**
* Class that exposes the Spring Boot version. Fetches the "Implementation-Version"
* manifest attribute from the jar file.
*
* Note that some ClassLoaders do not expose the package metadata, hence this class might
* not be able to determine the Spring Boot version in all environments. Consider using a
* reflection-based check instead: For example, checking for the presence of a specific
* Spring Boot method that you intend to call.
*
* @author Drummond Dawson
* @since 1.3.0
*/
public final class SpringBootVersion {
private SpringBootVersion() {
}
/**
* Return the full version string of the present Spring Boot codebase, or {@code null}
* if it cannot be determined.
* @return the version of Spring Boot or {@code null}
* @see Package#getImplementationVersion()
*/
public static String getVersion() {
Package pkg = SpringApplication.class.getPackage();
return (pkg != null) ? pkg.getImplementationVersion() : null;
}
}