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Diffstat (limited to 'libjava/gnu/java/lang/ClassHelper.java')
| -rw-r--r-- | libjava/gnu/java/lang/ClassHelper.java | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/libjava/gnu/java/lang/ClassHelper.java b/libjava/gnu/java/lang/ClassHelper.java deleted file mode 100644 index 14c8a39c478..00000000000 --- a/libjava/gnu/java/lang/ClassHelper.java +++ /dev/null @@ -1,177 +0,0 @@ -/* ClassHelper.java -- Utility methods to augment java.lang.Class - Copyright (C) 1998, 2002 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., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 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.lang.reflect.Field; -import java.lang.reflect.Method; -import java.util.Arrays; -import java.util.HashMap; -import java.util.HashSet; -import java.util.Iterator; -import java.util.Map; -import java.util.Set; - -/** - * ClassHelper has various methods that ought to have been in Class. - * - * @author John Keiser - * @author Eric Blake (ebb9@email.byu.edu) - */ -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); - } - - /** 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; - } -} |
