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package com.atguigu.utils;

import java.util.LinkedHashMap;

import java.util.Map;

public class LRUCache<K, V> extends LinkedHashMap<K, V> {

    private static final long serialVersionUID = -5907797767584803517L;

    protected int maxElements;

    public LRUCache(int maxSize) {

        super(maxSize, 0.75F, true);

        this.maxElements = maxSize;

    }

    /*

     * (non-Javadoc)

     *

     * @see java.util.LinkedHashMap#removeEldestEntry(java.util.Map.Entry)

     */

    @Override

    protected boolean removeEldestEntry(Map.Entry<K, V> eldest) {

        return (size() > this.maxElements);

    }

}

package com.atguigu.constants;

public class Constants {

    public static final int JDBC_DEFAULT_BATCH_NUMBER = 500;

}

$ cp -a /opt/module/mysql-libs/mysql-connector-java-5.1.27/mysql-connector-java-5.1.27-bin.jar ./lib

$ bin/yarn jar ~/call/jars/ct_analysis-1.0-SNAPSHOT.jar

 com.atguigu.analysis.runner.CountDurationRunner -libjars ./lib/*