| // Copyright 2017 The Bazel Authors. All rights reserved. |
| // |
| // 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.google.devtools.build.android.desugar; |
| |
| import com.google.common.base.Functions; |
| import com.google.common.collect.Iterators; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.nio.file.Path; |
| import java.util.Iterator; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipFile; |
| |
| /** Input provider is a zip file. */ |
| class ZipInputFileProvider implements InputFileProvider { |
| |
| private final Path root; |
| |
| private final ZipFile zipFile; |
| |
| public ZipInputFileProvider(Path root) throws IOException { |
| this.root = root; |
| this.zipFile = new ZipFile(root.toFile()); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| zipFile.close(); |
| } |
| |
| @Override |
| public String toString() { |
| return root.getFileName().toString(); |
| } |
| |
| @Override |
| public ZipEntry getZipEntry(String filename) { |
| ZipEntry zipEntry = zipFile.getEntry(filename); |
| zipEntry.setCompressedSize(-1); |
| return zipEntry; |
| } |
| |
| @Override |
| public InputStream getInputStream(String filename) throws IOException { |
| return zipFile.getInputStream(zipFile.getEntry(filename)); |
| } |
| |
| @Override |
| public Iterator<String> iterator() { |
| return Iterators.transform( |
| Iterators.forEnumeration(zipFile.entries()), Functions.toStringFunction()); |
| } |
| } |