From cea5ca6af42224c13d71c5d9ecd380471d9c0b6b Mon Sep 17 00:00:00 2001 From: Michael Koch Date: Tue, 17 Jun 2003 12:01:37 +0000 Subject: ArrayHelper.java, [...]: Reformatted to match classpath's versions. 2003-06-17 Michael Koch * gnu/java/lang/ArrayHelper.java, gnu/java/lang/ClassHelper.java: Reformatted to match classpath's versions. From-SVN: r68078 --- libjava/gnu/java/lang/ClassHelper.java | 344 ++++++++++++++------------------- 1 file changed, 143 insertions(+), 201 deletions(-) (limited to 'libjava/gnu/java/lang/ClassHelper.java') diff --git a/libjava/gnu/java/lang/ClassHelper.java b/libjava/gnu/java/lang/ClassHelper.java index 0d2ce5d4a77..16d699e3453 100644 --- a/libjava/gnu/java/lang/ClassHelper.java +++ b/libjava/gnu/java/lang/ClassHelper.java @@ -1,5 +1,5 @@ -/* gnu.java.lang.ClassHelper - Copyright (C) 1998 Free Software Foundation, Inc. +/* ClassHelper.java -- Utility methods to augment java.lang.Class + Copyright (C) 1998, 2002 Free Software Foundation, Inc. This file is part of GNU Classpath. @@ -7,7 +7,7 @@ GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. - + GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU @@ -42,202 +42,144 @@ import java.util.*; import java.lang.reflect.*; /** - ** ClassHelper has various methods that ought to have been - ** in class. - ** - ** @author John Keiser - ** @version 1.1.0, 29 Jul 1998 - **/ - -public class ClassHelper { - /** Strip the package part from the class name. - ** @param clazz the class to get the truncated name from - ** @return the truncated class name. - **/ - public static String getTruncatedClassName(Class clazz) { - return getTruncatedName(clazz.getName()); - } - /** Strip the package part from the class name, or the - ** class part from the method or field name. - ** @param name the name to truncate. - ** @return the truncated name. - **/ - public static String getTruncatedName(String name) { - int lastInd = name.lastIndexOf('.'); - if(lastInd == -1) { - return name; - } else { - return name.substring(lastInd+1); - } - } - - /** Strip the last portion of the name (after the last - ** dot). - ** @param name the name to get package of. - ** @return the package name. "" if no package. - **/ - public static String getPackagePortion(String name) { - int lastInd = name.lastIndexOf('.'); - if(lastInd == -1) { - return ""; - } else { - return name.substring(0,lastInd); - } - } - - static Hashtable allMethods = new Hashtable(); - static Hashtable allMethodsAtDeclaration = new Hashtable(); - - /** Get all the methods, public, private and - ** otherwise, from the class, getting them - ** from the most recent class to find them. - **/ - public static Method[] getAllMethods(Class clazz) { - Method[] retval = (Method[])allMethods.get(clazz); - if(retval == null) { - Method[] superMethods; - if(clazz.getSuperclass() != null) { - superMethods = getAllMethods(clazz.getSuperclass()); - } else { - superMethods = new Method[0]; - } - Vector v = new Vector(); - Method[] currentMethods = clazz.getDeclaredMethods(); - for(int i=0;i + */ +public class ClassHelper +{ + /** + * Strip the package part from the class name. + * + * @param clazz the class to get the truncated name from + * @return the truncated class name + */ + public static String getTruncatedClassName(Class clazz) + { + return getTruncatedName(clazz.getName()); + } + + /** + * Strip the package part from the class name, or the class part from + * the method or field name. + * + * @param name the name to truncate + * @return the truncated name + */ + public static String getTruncatedName(String name) + { + int lastInd = name.lastIndexOf('.'); + if (lastInd == -1) + return name; + return name.substring(lastInd + 1); + } + + /** + * Strip the last portion of the name (after the last dot). + * + * @param name the name to get package of + * @return the package name, or "" if no package + */ + public static String getPackagePortion(String name) + { + int lastInd = name.lastIndexOf('.'); + if (lastInd == -1) + return ""; + return name.substring(0, lastInd); + } + + /** Cache of methods found in getAllMethods(). */ + private static Map allMethods = new HashMap(); + + /** + * Get all the methods, public, private and otherwise, from the class, + * getting them from the most recent class to find them. This may not + * be quite the correct approach, as this includes methods that are not + * inherited or accessible from clazz, so beware. + * + * @param clazz the class to start at + * @return all methods declared or inherited in clazz + */ + public static Method[] getAllMethods(Class clazz) + { + Method[] retval = (Method[]) allMethods.get(clazz); + if (retval == null) + { + Set methods = new HashSet(); + Class c = clazz; + while (c != null) + { + Method[] currentMethods = c.getDeclaredMethods(); + loop: + for (int i = 0; i < currentMethods.length; i++) + { + Method current = currentMethods[i]; + int size = methods.size(); + Iterator iter = methods.iterator(); + while (--size >= 0) + { + Method override = (Method) iter.next(); + if (current.getName().equals(override.getName()) + && Arrays.equals(current.getParameterTypes(), + override.getParameterTypes()) + && current.getReturnType() == override.getReturnType()) + continue loop; + } + methods.add(current); + } + c = c.getSuperclass(); + } + retval = new Method[methods.size()]; + methods.toArray(retval); + allMethods.put(clazz, retval); + } + return retval; + } + + /** Cache of fields found in getAllFields(). */ + private static Map allFields = new HashMap(); + + /** + * Get all the fields, public, private and otherwise, from the class, + * getting them from the most recent class to find them. This may not + * be quite the correct approach, as this includes fields that are not + * inherited or accessible from clazz, so beware. + * + * @param clazz the class to start at + * @return all fields declared or inherited in clazz + */ + public static Field[] getAllFields(Class clazz) + { + Field[] retval = (Field[]) allFields.get(clazz); + if (retval == null) + { + Set fields = new HashSet(); + Class c = clazz; + while (c != null) + { + Field[] currentFields = c.getDeclaredFields(); + loop: + for (int i = 0; i < currentFields.length; i++) + { + Field current = currentFields[i]; + int size = fields.size(); + Iterator iter = fields.iterator(); + while (--size >= 0) + { + Field override = (Field) iter.next(); + if (current.getName().equals(override.getName()) + && current.getType() == override.getType()) + continue loop; + } + fields.add(current); + } + c = c.getSuperclass(); + } + retval = new Field[fields.size()]; + fields.toArray(retval); + allFields.put(clazz, retval); + } + return retval; + } } -- cgit v1.2.3