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package org.onetwo.common.utils;

import java.net.URL;

import org.onetwo.common.exception.BaseException;
import org.onetwo.common.utils.list.JFishList;

final public class ClassUtils {
	
	public static final String NON_PRIMITIVE_ARRAY_PREFIX = "[L";

	public static final char PACKAGE_SEPARATOR = '.';
	
	public static final char INNER_CLASS_SEPARATOR = '$';

	public static final String CGLIB_CLASS_SEPARATOR = "$$";

	public static final String CLASS_FILE_SUFFIX = ".class";

	private ClassUtils(){
	}

	public static ClassLoader getDefaultClassLoader(){
		ClassLoader cld = null;
		try {
			cld = Thread.currentThread().getContextClassLoader();
		} catch (Exception e) {
			//ignore
		}
		if(cld==null){
			cld = ClassUtils.class.getClassLoader();
		}
		return cld;
	}
	

	public static JFishList getResources(String resourceName) {
		return getResources(resourceName, ClassUtils.class, false);
	}
	
	public static JFishList getResources(String resourceName, Class callingClass, boolean aggregate) {

		JFishList list = new JFishList();

//        list.addEnumeration(Thread.currentThread().getContextClassLoader().getResources(resourceName));
		try {
			list.addEnumeration(getDefaultClassLoader().getResources(resourceName));

	        if (!list.isNotEmpty() || aggregate) {
	            list.addEnumeration(ClassUtils.class.getClassLoader().getResources(resourceName));
	        }

	        if (!list.isNotEmpty() || aggregate) {
	            ClassLoader cl = callingClass.getClassLoader();

	            if (cl != null) {
	                list.addEnumeration(cl.getResources(resourceName));
	            }
	        }
		} catch (Exception e) {
			throw new BaseException("getResources error : " + resourceName);
		}

        if (!list.isNotEmpty() && (resourceName != null) && ((resourceName.length() == 0) || (resourceName.charAt(0) != '/'))) { 
            return getResources('/' + resourceName, callingClass, aggregate);
        }

        return list;
    }
}