Class ArrayUtils

src/main/java/net/mtrop/doom/tools/struct/util/ArrayUtils.java:19–817

Simple utility functions around Arrays. @author Matthew Tropiano

 * @author Matthew Tropiano
 */
public final class ArrayUtils 
{
	private ArrayUtils() {}

	/**
	 * Tests if a class is actually an array type.
	 * @param clazz the class to test.
	 * @return true if so, false if not. 
	 */
	public static boolean isArray(Class<?> clazz)
	{
		return clazz.isArray(); 
	}

	/**
	 * Tests if an object is actually an array type.
	 * @param object the object to test.
	 * @return true if so, false if not. 
	 */
	public static boolean isArray(Object object)
	{
		return isArray(object.getClass()); 
	}

	/**
	 * Gets the class type of this array type, if this is an array type.
	 * @param arrayType the type to inspect.
	 * @return this array's type, or null if the provided type is not an array,
	 * or if the found class is not on the classpath.
	 */
	public static Class<?> getArrayType(Class<?> arrayType)
	{
		String cname = arrayType.getName();
	
		int typeIndex = getArrayDimensions(arrayType);
		if (typeIndex == 0)
			return null;
		
		char t = cname.charAt(typeIndex);
		if (t == 'L') // is object.
		{
			String classtypename = cname.substring(typeIndex + 1, cname.length() - 1);
			try {
				return Class.forName(classtypename);
			} catch (ClassNotFoundException e){
				return null;
			}
		}
		else switch (t)
		{
			case 'Z': return Boolean.TYPE; 
			case 'B': return Byte.TYPE; 
			case 'S': return Short.TYPE; 
			case 'I': return Integer.TYPE; 
			case 'J': return Long.TYPE; 
			case 'F': return Float.TYPE; 
			case 'D': return Double.TYPE; 
			case 'C': return Character.TYPE;