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package com.avaje.ebeaninternal.util;

import java.math.BigDecimal;
import java.net.URL;

public class ValueUtil {

	/**
	 * Helper method to check if two objects are equal.
	 */
	@SuppressWarnings("unchecked")
	public static boolean areEqual(Object obj1, Object obj2) {
		if (obj1 == null) {
			return (obj2 == null);
		}
		if (obj2 == null) {
			return false;
		}
		if (obj1 == obj2) {
			return true;
		}
		if (obj1 instanceof BigDecimal) {
			// Use comparable for BigDecimal as equals
			// uses scale in comparison...
			if (obj2 instanceof BigDecimal) {
				Comparable com1 = (Comparable) obj1;
				return (com1.compareTo(obj2) == 0);

			} else {
				return false;
			}

		} 
		if (obj1 instanceof URL){
			// use the string format to determine if dirty
			return obj1.toString().equals(obj2.toString());
		}
		if (obj1 instanceof byte[] && obj2 instanceof byte[]){
			return areEqualBytes((byte[])obj1, (byte[])obj2);
		}
		if (obj1 instanceof char[] && obj2 instanceof char[]){
			return areEqualChars((char[])obj1, (char[])obj2);
		}
		return obj1.equals(obj2);
	}
	
	private static boolean areEqualBytes(byte[] b1, byte[] b2) {
		if (b1.length != b2.length){
			return false;
		}
		for (int i = 0; i < b1.length; i++) {
			if (b1[i] != b2[i]){
				return false;
			}
		}
		return true;
	}
	
	private static boolean areEqualChars(char[] b1, char[] b2) {
		if (b1.length != b2.length){
			return false;
		}
		for (int i = 0; i < b1.length; i++) {
			if (b1[i] != b2[i]){
				return false;
			}
		}
		return true;
	}
}
 















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