| // Copyright 2019 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.inmemoryfs; |
| |
| import com.google.devtools.build.lib.clock.Clock; |
| import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.nio.channels.ReadableByteChannel; |
| |
| /** |
| * This interface represents a mutable file stored in an InMemoryFileSystem. |
| */ |
| @ThreadSafe |
| public abstract class FileInfo extends InMemoryContentInfo { |
| protected FileInfo(Clock clock) { |
| super(clock); |
| } |
| |
| @Override |
| public boolean isDirectory() { |
| return false; |
| } |
| |
| @Override |
| public boolean isSymbolicLink() { |
| return false; |
| } |
| |
| @Override |
| public boolean isFile() { |
| return true; |
| } |
| |
| @Override |
| public boolean isSpecialFile() { |
| return false; |
| } |
| |
| public abstract OutputStream getOutputStream(boolean append) throws IOException; |
| |
| public abstract InputStream getInputStream() throws IOException; |
| |
| public ReadableByteChannel createReadableByteChannel() throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public abstract byte[] getxattr(String name) throws IOException; |
| |
| public abstract byte[] getFastDigest() throws IOException; |
| } |