| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * 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 com.android.multidex; |
| |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Enumeration; |
| import java.util.Iterator; |
| import java.util.NoSuchElementException; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipFile; |
| |
| /** |
| * A zip element. |
| */ |
| class ArchivePathElement implements ClassPathElement { |
| |
| static class DirectoryEntryException extends IOException { |
| } |
| |
| private final ZipFile archive; |
| |
| public ArchivePathElement(ZipFile archive) { |
| this.archive = archive; |
| } |
| |
| @Override |
| public InputStream open(String path) throws IOException { |
| ZipEntry entry = archive.getEntry(path); |
| if (entry == null) { |
| throw new FileNotFoundException("File \"" + path + "\" not found"); |
| } else if (entry.isDirectory()) { |
| throw new DirectoryEntryException(); |
| } else { |
| return archive.getInputStream(entry); |
| } |
| } |
| |
| @Override |
| public void close() throws IOException { |
| archive.close(); |
| } |
| |
| @Override |
| public Iterable<String> list() { |
| return new Iterable<String>() { |
| |
| @Override |
| public Iterator<String> iterator() { |
| return new Iterator<String>() { |
| Enumeration<? extends ZipEntry> delegate = archive.entries(); |
| ZipEntry next = null; |
| |
| @Override |
| public boolean hasNext() { |
| while (next == null && delegate.hasMoreElements()) { |
| next = delegate.nextElement(); |
| if (next.isDirectory()) { |
| next = null; |
| } |
| } |
| return next != null; |
| } |
| |
| @Override |
| public String next() { |
| if (hasNext()) { |
| String name = next.getName(); |
| next = null; |
| return name; |
| } else { |
| throw new NoSuchElementException(); |
| } |
| } |
| |
| @Override |
| public void remove() { |
| throw new UnsupportedOperationException(); |
| } |
| }; |
| } |
| }; |
| } |
| |
| } |