VersionUtils.java

/*
 * Copyright 2011-2012 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.shell.support.util;


/**
 * @author Jarred Li
 */
public class VersionUtils {

	/**
	 * Returns the full version string of the present Spring Shell codebase,
	 * or <code>null</code> if it cannot be determined.
	 * @see java.lang.Package#getImplementationVersion()
	 */
	public static String versionInfo() {
		Package pkg = VersionUtils.class.getPackage();
		String version = null;
		if (pkg != null) {
			version = pkg.getImplementationVersion();
		}
		return (version != null ? version : "Unknown Version");
	}
}