MoreObjects.java

package restx.common;

/**
 * Date: 29/11/13
 * Time: 11:13
 */
public class MoreObjects {
    public static String toString(Class clazz) {
        if (clazz == null) {
            return "null";
        }
        return clazz.getName() + "[" + toString(clazz.getClassLoader()) + "]";
    }

    public static String toString(ClassLoader classLoader) {
        if (classLoader == null) {
            return "";
        }

        if (classLoader.getClass().getName().equals("sun.misc.Launcher$AppClassLoader")) {
            return "AppClassLoader";
        } else {
            String classloaderStr = classLoader.toString();
            // some classloaders have very detailed toString implementation and usually have new lines inside in
            // that cases (eg Tomcat WebappClassLoader). This breaks the layout when used in RESTX cases,
            // so we keep only the data before the new line
            classloaderStr = cutAfter(classloaderStr, '\r');
            classloaderStr = cutAfter(classloaderStr, '\n');
            return classloaderStr;
        }
    }

    private static String cutAfter(String str, char c) {
        int index = str.indexOf(c);
        if (index != -1) {
            return str.substring(0, index);
        } else {
            return str;
        }
    }
}