org.apache.zeppelin.util.Util.java Source code

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Here is the source code for org.apache.zeppelin.util.Util.java

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/*
 * 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.zeppelin.util;

import org.apache.commons.lang3.StringUtils;

import java.io.IOException;
import java.util.Properties;

/**
 * TODO(moon) : add description.
 */
public class Util {
    private static final String PROJECT_PROPERTIES_VERSION_KEY = "version";

    private static Properties projectProperties;

    static {
        projectProperties = new Properties();
        try {
            projectProperties.load(Util.class.getResourceAsStream("/project.properties"));
        } catch (IOException e) {
            //Fail to read project.properties
        }
    }

    /**
     * Get Zeppelin version
     *
     * @return Current Zeppelin version
     */
    public static String getVersion() {
        return StringUtils.defaultIfEmpty(projectProperties.getProperty(PROJECT_PROPERTIES_VERSION_KEY),
                StringUtils.EMPTY);
    }
}