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Apache Kylin - REST Server Base

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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.kylin.rest.init;

import org.apache.kylin.common.KylinConfig;
import org.apache.kylin.common.util.ServerMode;
import org.apache.spark.sql.SparderContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.InitializingBean;

public class InitialSparderContext implements InitializingBean {

    private static final Logger logger = LoggerFactory.getLogger(InitialSparderContext.class);

    @Override
    public void afterPropertiesSet() throws Exception {
        runInitialSparder();
    }

    private void runInitialSparder() {
        KylinConfig config = KylinConfig.getInstanceFromEnv();
        if (!ServerMode.SERVER_MODE.canServeQuery() || !config.isAutoStartSparder()) {
            logger.info("Maybe this is job node, or switch is off, do not need to start Spark, {}", config.isAutoStartSparder());
            return;
        }
        logger.info("Spark is starting.....");
        SparderContext.init();
    }
}