+++ /dev/null
-/* gnu.java.lang.ClassHelper
- Copyright (C) 1998 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-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
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package gnu.java.lang;
-
-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<currentMethods.length;i++) {
- v.addElement(currentMethods[i]);
- }
- for(int i=0;i<superMethods.length;i++) {
- boolean addOK = true;
- for(int j=0;j<currentMethods.length;j++) {
- if(getTruncatedName(superMethods[i].getName()).equals(getTruncatedName(currentMethods[j].getName()))
- && ArrayHelper.equalsArray(superMethods[i].getParameterTypes(),currentMethods[j].getParameterTypes())) {
- addOK = false;
- }
- }
- if(addOK) {
- v.addElement(superMethods[i]);
- }
- }
-
- retval = new Method[v.size()];
- v.copyInto(retval);
- allMethods.put(clazz,retval);
- }
- return retval;
- }
-
- /** Get all the methods, public, private and
- ** otherwise, from the class, and get them from
- ** their point of declaration.
- **/
- public static Method[] getAllMethodsAtDeclaration(Class clazz) {
- Method[] retval = (Method[])allMethodsAtDeclaration.get(clazz);
- if(retval == null) {
- Method[] superMethods;
- if(clazz.getSuperclass() != null) {
- superMethods = getAllMethodsAtDeclaration(clazz.getSuperclass());
- } else {
- superMethods = new Method[0];
- }
- Vector v = new Vector();
- Method[] currentMethods = clazz.getDeclaredMethods();
- for(int i=0;i<superMethods.length;i++) {
- v.addElement(superMethods[i]);
- }
- for(int i=0;i<superMethods.length;i++) {
- boolean addOK = true;
- for(int j=0;j<currentMethods.length;j++) {
- if(getTruncatedName(superMethods[i].getName()).equals(getTruncatedName(currentMethods[j].getName()))
- && ArrayHelper.equalsArray(superMethods[i].getParameterTypes(),currentMethods[j].getParameterTypes())) {
- addOK = false;
- }
- }
- if(addOK) {
- v.addElement(superMethods[i]);
- }
- }
-
- retval = new Method[v.size()];
- v.copyInto(retval);
- allMethodsAtDeclaration.put(clazz,retval);
- }
- return retval;
- }
-
- static Hashtable allFields = new Hashtable();
- static Hashtable allFieldsAtDeclaration = new Hashtable();
-
- /** Get all the fields, public, private and
- ** otherwise, from the class, getting them
- ** from the most recent class to find them.
- **/
- public static Field[] getAllFields(Class clazz) {
- Field[] retval = (Field[])allFields.get(clazz);
- if(retval == null) {
- Field[] superFields;
- if(clazz.getSuperclass() != null) {
- superFields = getAllFields(clazz.getSuperclass());
- } else {
- superFields = new Field[0];
- }
- Vector v = new Vector();
- Field[] currentFields = clazz.getDeclaredFields();
- for(int i=0;i<currentFields.length;i++) {
- v.addElement(currentFields[i]);
- }
- for(int i=0;i<superFields.length;i++) {
- boolean addOK = true;
- for(int j=0;j<currentFields.length;j++) {
- if(getTruncatedName(superFields[i].getName()).equals(getTruncatedName(currentFields[j].getName()))) {
- addOK = false;
- }
- }
- if(addOK) {
- v.addElement(superFields[i]);
- }
- }
-
- retval = new Field[v.size()];
- v.copyInto(retval);
- allFields.put(clazz,retval);
- }
- return retval;
- }
-
- /** Get all the fields, public, private and
- ** otherwise, from the class, and get them from
- ** their point of declaration.
- **/
- public static Field[] getAllFieldsAtDeclaration(Class clazz) {
- Field[] retval = (Field[])allFieldsAtDeclaration.get(clazz);
- if(retval == null) {
- Field[] superFields;
- if(clazz.getSuperclass() != null) {
- superFields = getAllFieldsAtDeclaration(clazz.getSuperclass());
- } else {
- superFields = new Field[0];
- }
- Vector v = new Vector();
- Field[] currentFields = clazz.getDeclaredFields();
- for(int i=0;i<superFields.length;i++) {
- v.addElement(superFields[i]);
- }
- for(int i=0;i<superFields.length;i++) {
- boolean addOK = true;
- for(int j=0;j<currentFields.length;j++) {
- if(getTruncatedName(superFields[i].getName()).equals(getTruncatedName(currentFields[j].getName()))) {
- addOK = false;
- }
- }
- if(addOK) {
- v.addElement(superFields[i]);
- }
- }
-
- retval = new Field[v.size()];
- v.copyInto(retval);
- allFieldsAtDeclaration.put(clazz,retval);
- }
- return retval;
- }
-}
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