1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.squareup.okhttp.internal; 17 18 import com.squareup.okhttp.internal.io.FileSystem; 19 import java.io.File; 20 import java.io.FileNotFoundException; 21 import java.io.IOException; 22 import java.util.LinkedHashSet; 23 import java.util.Set; 24 import okio.Buffer; 25 import okio.ForwardingSink; 26 import okio.Sink; 27 import okio.Source; 28 29 public final class FaultyFileSystem implements FileSystem { 30 private final FileSystem delegate; 31 private final Set<File> writeFaults = new LinkedHashSet<>(); 32 FaultyFileSystem(FileSystem delegate)33 public FaultyFileSystem(FileSystem delegate) { 34 this.delegate = delegate; 35 } 36 setFaulty(File file, boolean faulty)37 public void setFaulty(File file, boolean faulty) { 38 if (faulty) { 39 writeFaults.add(file); 40 } else { 41 writeFaults.remove(file); 42 } 43 } 44 source(File file)45 @Override public Source source(File file) throws FileNotFoundException { 46 return delegate.source(file); 47 } 48 sink(File file)49 @Override public Sink sink(File file) throws FileNotFoundException { 50 return new FaultySink(delegate.sink(file), file); 51 } 52 appendingSink(File file)53 @Override public Sink appendingSink(File file) throws FileNotFoundException { 54 return new FaultySink(delegate.appendingSink(file), file); 55 } 56 delete(File file)57 @Override public void delete(File file) throws IOException { 58 delegate.delete(file); 59 } 60 exists(File file)61 @Override public boolean exists(File file) throws IOException { 62 return delegate.exists(file); 63 } 64 size(File file)65 @Override public long size(File file) { 66 return delegate.size(file); 67 } 68 rename(File from, File to)69 @Override public void rename(File from, File to) throws IOException { 70 delegate.rename(from, to); 71 } 72 deleteContents(File directory)73 @Override public void deleteContents(File directory) throws IOException { 74 delegate.deleteContents(directory); 75 } 76 77 private class FaultySink extends ForwardingSink { 78 private final File file; 79 FaultySink(Sink delegate, File file)80 public FaultySink(Sink delegate, File file) { 81 super(delegate); 82 this.file = file; 83 } 84 write(Buffer source, long byteCount)85 @Override public void write(Buffer source, long byteCount) throws IOException { 86 if (writeFaults.contains(file)) throw new IOException("boom!"); 87 super.write(source, byteCount); 88 } 89 } 90 } 91