diff options
Diffstat (limited to 'java/com/google/devtools/build/android/desugar/io/DirectoryOutputFileProvider.java')
-rw-r--r-- | java/com/google/devtools/build/android/desugar/io/DirectoryOutputFileProvider.java | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/java/com/google/devtools/build/android/desugar/io/DirectoryOutputFileProvider.java b/java/com/google/devtools/build/android/desugar/io/DirectoryOutputFileProvider.java new file mode 100644 index 0000000..f8e87cb --- /dev/null +++ b/java/com/google/devtools/build/android/desugar/io/DirectoryOutputFileProvider.java @@ -0,0 +1,59 @@ +// 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.io; + +import com.google.common.io.ByteStreams; +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.nio.file.Files; +import java.nio.file.Path; + +/** Output provider is a directory. */ +class DirectoryOutputFileProvider implements OutputFileProvider { + + private final Path root; + + public DirectoryOutputFileProvider(Path root) { + this.root = root; + } + + @Override + public void copyFrom(String filename, InputFileProvider inputFileProvider) throws IOException { + Path path = root.resolve(filename); + createParentFolder(path); + try (InputStream is = inputFileProvider.getInputStream(filename); + OutputStream os = Files.newOutputStream(path)) { + ByteStreams.copy(is, os); + } + } + + @Override + public void write(String filename, byte[] content) throws IOException { + Path path = root.resolve(filename); + createParentFolder(path); + Files.write(path, content); + } + + @Override + public void close() { + // Nothing to close + } + + private void createParentFolder(Path path) throws IOException { + if (!Files.exists(path.getParent())) { + Files.createDirectories(path.getParent()); + } + } +} |