| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.felix.connect; |
| |
| import java.util.Enumeration; |
| import java.util.NoSuchElementException; |
| import java.util.zip.ZipEntry; |
| |
| class EntriesEnumeration implements Enumeration<String> |
| { |
| private final Enumeration<? extends ZipEntry> m_enumeration; |
| private final String m_prefix; |
| private volatile String current; |
| |
| public EntriesEnumeration(Enumeration<? extends ZipEntry> enumeration) |
| { |
| this(enumeration, null); |
| } |
| |
| public EntriesEnumeration(Enumeration<? extends ZipEntry> enumeration, String prefix) |
| { |
| m_enumeration = enumeration; |
| m_prefix = prefix; |
| } |
| |
| public boolean hasMoreElements() |
| { |
| while ((current == null) && m_enumeration.hasMoreElements()) |
| { |
| String result = m_enumeration.nextElement().getName(); |
| if (m_prefix != null) |
| { |
| if (result.startsWith(m_prefix)) |
| { |
| current = result.substring(m_prefix.length()); |
| } |
| } |
| else |
| { |
| current = result; |
| } |
| } |
| return (current != null); |
| } |
| |
| public String nextElement() |
| { |
| try |
| { |
| if (hasMoreElements()) |
| { |
| return current; |
| } |
| else |
| { |
| throw new NoSuchElementException(); |
| } |
| } |
| finally |
| { |
| current = null; |
| } |
| } |
| } |