- /*
- * Copyright 2002-2004 The Apache Software Foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
- package org.apache.tools.ant.util;
-
- import java.util.Dictionary;
- import java.util.Enumeration;
- import java.util.NoSuchElementException;
- import java.util.Vector;
-
- /**
- * A set of helper methods related to collection manipulation.
- *
- *
- * @since Ant 1.5
- */
- public class CollectionUtils {
-
- /**
- * Please use Vector.equals() or List.equals()
- *
- * @since Ant 1.5
- * @deprecated
- */
- public static boolean equals(Vector v1, Vector v2) {
- if (v1 == v2) {
- return true;
- }
-
- if (v1 == null || v2 == null) {
- return false;
- }
-
- return v1.equals(v2);
- }
-
- /**
- * Dictionary does not have an equals.
- * Please use Map.equals()
- *
- * <p>Follows the equals contract of Java 2's Map.</p>
- *
- * @since Ant 1.5
- * @deprecated
- */
- public static boolean equals(Dictionary d1, Dictionary d2) {
- if (d1 == d2) {
- return true;
- }
-
- if (d1 == null || d2 == null) {
- return false;
- }
-
- if (d1.size() != d2.size()) {
- return false;
- }
-
- Enumeration e1 = d1.keys();
- while (e1.hasMoreElements()) {
- Object key = e1.nextElement();
- Object value1 = d1.get(key);
- Object value2 = d2.get(key);
- if (value2 == null || !value1.equals(value2)) {
- return false;
- }
- }
-
- // don't need the opposite check as the Dictionaries have the
- // same size, so we've also covered all keys of d2 already.
-
- return true;
- }
-
- /**
- * Dictionary does not know the putAll method. Please use Map.putAll().
- *
- * @since Ant 1.6
- * @deprecated
- */
- public static void putAll(Dictionary m1, Dictionary m2) {
- for (Enumeration it = m2.keys(); it.hasMoreElements();) {
- Object key = it.nextElement();
- m1.put(key, m2.get(key));
- }
- }
-
- /**
- * @since Ant 1.6
- */
- public static final class EmptyEnumeration implements Enumeration {
- public EmptyEnumeration() {
- }
-
- public boolean hasMoreElements() {
- return false;
- }
-
- public Object nextElement() throws NoSuchElementException {
- throw new NoSuchElementException();
- }
- }
-
- }