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package org.javers.common.collections;

import java.lang.reflect.Array;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import static org.javers.common.validation.Validate.argumentCheck;

/**
 * @author pawel szymczyk
 */
public class Arrays {
    public static Class INT_ARRAY_TYPE = new int[]{}.getClass();
    public static Class INTEGER_ARRAY_TYPE = new Integer[]{}.getClass();
    public static Class OBJECT_ARRAY_TYPE = new Object[]{}.getClass();

    /**
     * @return index -> value
     */
    public static  Map asMap(Object array) {
        Map result = new HashMap<>();
        if (array == null){
            return result;
        }

        for (int i=0 ;i< Array.getLength(array); i++) {
            result.put(i, (T) Array.get(array, i));
        }

        return result;
    } 
    /**
     * @return new list with elements from array
     * @throws java.lang.IllegalArgumentException
     */
    public static List asList(Object array) {
        if (!array.getClass().isArray()) {
            throw new IllegalArgumentException(array.getClass().getSimpleName() + "is not array");
        }

        List list = new ArrayList<>();

        for (int i=0 ;i< Array.getLength(array); i++) {
            list.add(Array.get(array, i));
        }

        return list;
    }

    public static int[] intArray(int... data){
       int[] ret = new int[data.length];
       for (int i=0; i c = arr1.getClass();
        argumentCheck(c.isArray(), arr1 + " is not an array");

        if (!c.getComponentType().isPrimitive()) {
            c = Object[].class;
        }

        try {
            Method eqMethod = java.util.Arrays.class.getMethod("equals", c, c);
            return (Boolean) eqMethod.invoke(null, arr1, arr2);
        }
        catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}
 















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