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// Copyright 2015 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.lib.vfs;
import java.io.IOException;
/**
* An {@link AbstractFileSystem} that provides default implementations of {@link FileSystem#isFile}
* et al. in terms of {@link FileSystem#stat} (rather than the other way around, which is what
* {@link FileSystem} does).
*/
public abstract class AbstractFileSystemWithCustomStat extends AbstractFileSystem {
public AbstractFileSystemWithCustomStat() {}
public AbstractFileSystemWithCustomStat(DigestHashFunction hashFunction) {
super(hashFunction);
}
@Override
protected boolean isFile(Path path, boolean followSymlinks) {
FileStatus stat = statNullable(path, followSymlinks);
return stat != null ? stat.isFile() : false;
}
@Override
protected boolean isSpecialFile(Path path, boolean followSymlinks) {
FileStatus stat = statNullable(path, followSymlinks);
return stat != null ? stat.isSpecialFile() : false;
}
@Override
protected boolean isSymbolicLink(Path path) {
FileStatus stat = statNullable(path, false);
return stat != null ? stat.isSymbolicLink() : false;
}
@Override
protected boolean isDirectory(Path path, boolean followSymlinks) {
FileStatus stat = statNullable(path, followSymlinks);
return stat != null ? stat.isDirectory() : false;
}
@Override
protected abstract FileStatus stat(Path path, boolean followSymlinks) throws IOException;
}
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