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/*
* Copyright (C) 2008 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.io;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URI;
/**
* An implementation of {@link IAbstractFile} extending {@link File}.
*/
public class FileWrapper extends File implements IAbstractFile {
private static final long serialVersionUID = 1L;
/**
* Creates a new File instance matching a given {@link File} object.
* @param file the file to match
*/
public FileWrapper(File file) {
super(file.getAbsolutePath());
}
/**
* Creates a new File instance from a parent abstract pathname and a child pathname string.
* @param parent the parent pathname
* @param child the child name
*
* @see File#File(File, String)
*/
public FileWrapper(File parent, String child) {
super(parent, child);
}
/**
* Creates a new File instance by converting the given pathname string into an abstract
* pathname.
* @param osPathname the OS pathname
*
* @see File#File(String)
*/
public FileWrapper(String osPathname) {
super(osPathname);
}
/**
* Creates a new File instance from a parent abstract pathname and a child pathname string.
* @param parent the parent pathname
* @param child the child name
*
* @see File#File(String, String)
*/
public FileWrapper(String parent, String child) {
super(parent, child);
}
/**
* Creates a new File instance by converting the given <code>file:</code> URI into an
* abstract pathname.
* @param uri An absolute, hierarchical URI with a scheme equal to "file", a non-empty path
* component, and undefined authority, query, and fragment components
*
* @see File#File(URI)
*/
public FileWrapper(URI uri) {
super(uri);
}
@Override
public InputStream getContents() throws StreamException {
try {
return new FileInputStream(this);
} catch (FileNotFoundException e) {
throw new StreamException(e);
}
}
@Override
public void setContents(InputStream source) throws StreamException {
FileOutputStream fos = null;
try {
fos = new FileOutputStream(this);
byte[] buffer = new byte[1024];
int count = 0;
while ((count = source.read(buffer)) != -1) {
fos.write(buffer, 0, count);
}
} catch (IOException e) {
throw new StreamException(e);
} finally {
if (fos != null) {
try {
fos.close();
} catch (IOException e) {
throw new StreamException(e);
}
}
}
}
@Override
public OutputStream getOutputStream() throws StreamException {
try {
return new FileOutputStream(this);
} catch (FileNotFoundException e) {
throw new StreamException(e);
}
}
@Override
public PreferredWriteMode getPreferredWriteMode() {
return PreferredWriteMode.OUTPUTSTREAM;
}
@Override
public String getOsLocation() {
return getAbsolutePath();
}
@Override
public boolean exists() {
return isFile();
}
@Override
public long getModificationStamp() {
return lastModified();
}
@Override
public IAbstractFolder getParentFolder() {
String p = this.getParent();
if (p == null) {
return null;
}
return new FolderWrapper(p);
}
}
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