com.commercehub.gradle.plugin.avro.MapUtils Maven / Gradle / Ivy

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package com.commercehub.gradle.plugin.avro;

import java.util.LinkedHashMap;
import java.util.Map;

public class MapUtils {
    /**
     * Returns the map of all entries present in the first map but not present in the second map (by key).
     */
    static  Map asymmetricDifference(Map a, Map b) {
        if (b == null || b.isEmpty()) {
            return a;
        }
        Map result = new LinkedHashMap(a);
        result.keySet().removeAll(b.keySet());
        return result;
    }
}