101 lines
3.0 KiB
Java
101 lines
3.0 KiB
Java
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package external.com.android.multidex;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Enumeration;
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import java.util.Iterator;
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import java.util.NoSuchElementException;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipFile;
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/**
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* A zip element.
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*/
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class ArchivePathElement implements ClassPathElement {
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static class DirectoryEntryException extends IOException {
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}
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private final ZipFile archive;
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public ArchivePathElement(ZipFile archive) {
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this.archive = archive;
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}
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@Override
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public InputStream open(String path) throws IOException {
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ZipEntry entry = archive.getEntry(path);
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if (entry == null) {
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throw new FileNotFoundException("File \"" + path + "\" not found");
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} else if (entry.isDirectory()) {
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throw new DirectoryEntryException();
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} else {
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return archive.getInputStream(entry);
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}
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}
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@Override
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public void close() throws IOException {
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archive.close();
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}
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@Override
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public Iterable<String> list() {
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return new Iterable<String>() {
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@Override
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public Iterator<String> iterator() {
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return new Iterator<String>() {
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Enumeration<? extends ZipEntry> delegate = archive.entries();
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ZipEntry next = null;
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@Override
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public boolean hasNext() {
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while (next == null && delegate.hasMoreElements()) {
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next = delegate.nextElement();
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if (next.isDirectory()) {
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next = null;
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}
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}
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return next != null;
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}
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@Override
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public String next() {
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if (hasNext()) {
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String name = next.getName();
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next = null;
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return name;
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} else {
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throw new NoSuchElementException();
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}
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}
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@Override
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public void remove() {
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throw new UnsupportedOperationException();
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}
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};
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}
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};
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}
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}
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