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/*
* Copyright (C) 2014 The Android Open Source Project
*
* 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.android.sched.vfs;
import com.android.sched.util.ConcurrentIOException;
import com.android.sched.util.file.CannotCreateFileException;
import com.android.sched.util.file.CannotDeleteFileException;
import com.android.sched.util.file.NoSuchFileException;
import com.android.sched.util.file.NotFileOrDirectoryException;
import com.android.sched.util.location.DirectoryLocation;
import com.android.sched.util.location.FileLocation;
import com.android.sched.util.location.Location;
import com.android.sched.util.location.ZipLocation;
import java.io.File;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.zip.ZipEntry;
import javax.annotation.Nonnull;
/**
* A directory in an {@link InputOutputZipVFS} VFS.
*/
class InputOutputZipVDir extends AbstractVElement implements InputOutputVDir {
@Nonnull
protected final File dir;
@Nonnull
protected final InputOutputZipVFS vfs;
@Nonnull
private final ZipEntry zipEntry;
public InputOutputZipVDir(@Nonnull InputOutputZipVFS vfs, @Nonnull File dir,
@Nonnull ZipEntry zipEntry) {
this.vfs = vfs;
this.dir = dir;
this.zipEntry = zipEntry;
}
@Nonnull
@Override
public String getName() {
return dir.getName();
}
@Nonnull
@Override
public synchronized Collection<? extends InputVElement> list() {
File[] subs = dir.listFiles();
if (subs == null) {
throw new ConcurrentIOException(new ListDirException(dir));
}
if (subs.length == 0) {
return Collections.emptyList();
}
ArrayList<InputVElement> items = new ArrayList<InputVElement>(subs.length);
for (File sub : subs) {
String subZipEntryName = zipEntry.getName() + sub.getName();
if (sub.isFile()) {
items.add(new InputOutputZipVFile(vfs, sub, new ZipEntry(subZipEntryName)));
} else {
items.add(new InputOutputZipVDir(vfs, sub,
new ZipEntry(subZipEntryName + ZipUtils.ZIP_SEPARATOR)));
}
}
return items;
}
@Override
@Nonnull
public Location getLocation() {
return new ZipLocation(vfs.getLocation(), zipEntry);
}
@Override
public boolean isVDir() {
return true;
}
@Override
@Nonnull
public OutputVFile createOutputVFile(@Nonnull VPath path) throws CannotCreateFileException {
assert !vfs.isClosed();
File file = new File(dir, path.getPathAsString(ZipUtils.ZIP_SEPARATOR));
if (!file.getParentFile().mkdirs() && !file.getParentFile().isDirectory()) {
throw new CannotCreateFileException(new DirectoryLocation(file.getParentFile()));
}
assert !(path.equals(VPath.ROOT));
String newEntryName = path.getPathAsString(ZipUtils.ZIP_SEPARATOR);
String parentEntryName = zipEntry.getName();
if (!parentEntryName.isEmpty()) {
newEntryName = parentEntryName + newEntryName;
}
return new InputOutputZipVFile(vfs, file, new ZipEntry(newEntryName));
}
@Override
@Nonnull
public OutputVDir createOutputVDir(@Nonnull VPath path) throws CannotCreateFileException {
assert !vfs.isClosed();
File file = new File(dir, path.getPathAsString(ZipUtils.ZIP_SEPARATOR));
if (!file.getParentFile().mkdirs() && !file.getParentFile().isDirectory()) {
throw new CannotCreateFileException(new DirectoryLocation(file.getParentFile()));
}
if (!file.mkdir()) {
throw new CannotCreateFileException(new DirectoryLocation(file));
}
assert !(path.equals(VPath.ROOT));
String newEntryName = path.getPathAsString(ZipUtils.ZIP_SEPARATOR);
String parentEntryName = zipEntry.getName();
if (!parentEntryName.isEmpty()) {
newEntryName = parentEntryName + newEntryName;
}
return new InputOutputZipVDir(vfs, file, new ZipEntry(newEntryName));
}
@Override
@Nonnull
public InputOutputVDir getInputVDir(@Nonnull VPath path) throws NotFileOrDirectoryException,
NoSuchFileException {
File file = new File(dir, path.getPathAsString(File.separatorChar));
if (!file.exists()) {
throw new NoSuchFileException(new FileLocation(file));
}
if (file.isFile()) {
throw new NotFileOrDirectoryException(new FileLocation(file));
}
return new InputOutputZipVDir(vfs, file,
new ZipEntry(path.getPathAsString(ZipUtils.ZIP_SEPARATOR) + ZipUtils.ZIP_SEPARATOR));
}
@Override
@Nonnull
public InputVFile getInputVFile(@Nonnull VPath path) throws NotFileOrDirectoryException,
NoSuchFileException {
File file = new File(dir, path.getPathAsString(File.separatorChar));
if (!file.exists()) {
throw new NoSuchFileException(new FileLocation(file));
}
if (!file.isFile()) {
throw new NotFileOrDirectoryException(new FileLocation(file));
}
return new InputOutputZipVFile(vfs, file,
new ZipEntry(path.getPathAsString(ZipUtils.ZIP_SEPARATOR)));
}
@Override
@Nonnull
public void delete(@Nonnull VPath path) throws CannotDeleteFileException {
assert !vfs.isClosed();
File file = new File(dir, path.getPathAsString(File.separatorChar));
if (!file.delete()) {
throw new CannotDeleteFileException(
file.isDirectory() ? new DirectoryLocation(file) : new FileLocation(file));
}
}
}
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