| /* |
| * 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.io.File; |
| import java.util.Enumeration; |
| import java.util.NoSuchElementException; |
| |
| class FileEntriesEnumeration implements Enumeration<String> |
| { |
| private final File m_dir; |
| private final File[] m_children; |
| private int m_counter = 0; |
| |
| public FileEntriesEnumeration(File dir) |
| { |
| m_dir = dir; |
| m_children = listFilesRecursive(m_dir); |
| } |
| |
| public synchronized boolean hasMoreElements() |
| { |
| return (m_children != null) && (m_counter < m_children.length); |
| } |
| |
| public synchronized String nextElement() |
| { |
| if ((m_children == null) || (m_counter >= m_children.length)) |
| { |
| throw new NoSuchElementException("No more entry paths."); |
| } |
| |
| // Convert the file separator character to slashes. |
| String abs = m_children[m_counter].getAbsolutePath().replace( |
| File.separatorChar, '/'); |
| |
| // Remove the leading path of the reference directory, since the |
| // entry paths are supposed to be relative to the root. |
| StringBuilder sb = new StringBuilder(abs); |
| sb.delete(0, m_dir.getAbsolutePath().length() + 1); |
| // Add a '/' to the end of directory entries. |
| if (m_children[m_counter].isDirectory()) |
| { |
| sb.append('/'); |
| } |
| m_counter++; |
| return sb.toString(); |
| } |
| |
| private File[] listFilesRecursive(File dir) |
| { |
| File[] children = dir.listFiles(); |
| File[] combined = children; |
| for (File aChildren : children) |
| { |
| if (aChildren.isDirectory()) |
| { |
| File[] grandchildren = listFilesRecursive(aChildren); |
| if (grandchildren.length > 0) |
| { |
| File[] tmp = new File[combined.length + grandchildren.length]; |
| System.arraycopy(combined, 0, tmp, 0, combined.length); |
| System.arraycopy(grandchildren, 0, tmp, combined.length, |
| grandchildren.length); |
| combined = tmp; |
| } |
| } |
| } |
| return combined; |
| } |
| } |