oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/version/Version.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.skywalking.oap.server.core.version;

import java.io.IOException;
import java.util.Properties;
import lombok.Getter;
import org.apache.logging.log4j.util.Strings;

@Getter
public enum Version {
    CURRENT;

    private final String buildVersion;
    private final String commitId;

    private final Properties properties = new Properties();

    Version() {
        try {
            properties.load(Version.class.getClassLoader()
                                         .getResourceAsStream("version.properties"));
            buildVersion = properties.getProperty("git.build.version");
            commitId = properties.getProperty("git.commit.id");
        } catch (IOException e) {
            throw new ExceptionInInitializerError(e);
        }
    }

    @Override
    public String toString() {
        return String.format(
            "%s-%s",
            buildVersion,
            Strings.left(commitId, 7)
        );
    }
}