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/**
* Copyright (C) 2006-2017 Apache Software Foundation (https://sourceforge.net/p/webdav-servlet, https://github.com/Commonjava/webdav-handler)
*
* 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.
*/
/*
*
* 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 net.sf.webdav.impl;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.security.Principal;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.enterprise.inject.Alternative;
import javax.inject.Named;
import net.sf.webdav.StoredObject;
import net.sf.webdav.exceptions.WebdavException;
import net.sf.webdav.spi.ITransaction;
import net.sf.webdav.spi.IWebdavStore;
/**
* Reference Implementation of WebdavStore
*
* @author joa
* @author re
*/
@Alternative
@Named
public class LocalFileSystemStore
implements IWebdavStore
{
private static org.slf4j.Logger LOG = org.slf4j.LoggerFactory.getLogger( LocalFileSystemStore.class );
private static int BUF_SIZE = 65536;
private File _root = null;
public LocalFileSystemStore( final File root )
{
_root = root;
}
@Override
public ITransaction begin( final Principal principal )
throws WebdavException
{
LOG.trace( "LocalFileSystemStore.begin()" );
if ( !_root.exists() )
{
if ( !_root.mkdirs() )
{
throw new WebdavException( "root path: " + _root.getAbsolutePath() + " does not exist and could not be created" );
}
}
return null;
}
@Override
public void checkAuthentication( final ITransaction transaction )
throws SecurityException
{
LOG.trace( "LocalFileSystemStore.checkAuthentication()" );
// do nothing
}
@Override
public void commit( final ITransaction transaction )
throws WebdavException
{
// do nothing
LOG.trace( "LocalFileSystemStore.commit()" );
}
@Override
public void rollback( final ITransaction transaction )
throws WebdavException
{
// do nothing
LOG.trace( "LocalFileSystemStore.rollback()" );
}
@Override
public void createFolder( final ITransaction transaction, final String uri )
throws WebdavException
{
LOG.trace( "LocalFileSystemStore.createFolder(" + uri + ")" );
final File file = new File( _root, uri );
if ( !file.mkdir() )
{
throw new WebdavException( "cannot create folder: " + uri );
}
}
@Override
public void createResource( final ITransaction transaction, final String uri )
throws WebdavException
{
LOG.trace( "LocalFileSystemStore.createResource(" + uri + ")" );
final File file = new File( _root, uri );
try
{
if ( !file.createNewFile() )
{
throw new WebdavException( "cannot create file: " + uri );
}
}
catch ( final IOException e )
{
LOG.error( "LocalFileSystemStore.createResource(" + uri + ") failed" );
throw new WebdavException( "Failed to create new file: %s. Reason: %s", e, file, e.getMessage() );
}
}
@Override
public long setResourceContent(final ITransaction transaction, final String uri, final InputStream is, long contentLength)
throws WebdavException
{
LOG.trace( "LocalFileSystemStore.setResourceContent(" + uri + ")" );
final File file = new File( _root, uri );
try
{
final OutputStream os = new BufferedOutputStream( new FileOutputStream( file ), BUF_SIZE );
try
{
int read;
final byte[] copyBuffer = new byte[BUF_SIZE];
while ( ( read = is.read( copyBuffer, 0, copyBuffer.length ) ) != -1 )
{
os.write( copyBuffer, 0, read );
}
}
finally
{
try
{
is.close();
}
finally
{
os.close();
}
}
}
catch ( final IOException e )
{
LOG.error( "LocalFileSystemStore.setResourceContent(" + uri + ") failed" );
throw new WebdavException( "Failed to write file: %s. Reason: %s", e, file, e.getMessage() );
}
long length = -1;
try
{
length = file.length();
}
catch ( final SecurityException e )
{
LOG.error( "LocalFileSystemStore.setResourceContent(" + uri + ") failed" + "\nCan't get file.length" );
}
return length;
}
@Override
public String[] getChildrenNames( final ITransaction transaction, final String uri )
throws WebdavException
{
LOG.trace( "LocalFileSystemStore.getChildrenNames(" + uri + ")" );
final File file = new File( _root, uri );
String[] childrenNames = null;
if ( file.isDirectory() )
{
final File[] children = file.listFiles();
final List childList = new ArrayList();
String name = null;
for ( int i = 0; i < children.length; i++ )
{
name = children[i].getName();
childList.add( name );
LOG.trace( "Child " + i + ": " + name );
}
childrenNames = new String[childList.size()];
childrenNames = childList.toArray( childrenNames );
}
return childrenNames;
}
@Override
public void removeObject( final ITransaction transaction, final String uri )
throws WebdavException
{
final File file = new File( _root, uri );
final boolean success = file.delete();
LOG.trace( "LocalFileSystemStore.removeObject(" + uri + ")=" + success );
if ( !success )
{
throw new WebdavException( "cannot delete object: " + uri );
}
}
@Override
public InputStream getResourceContent( final ITransaction transaction, final String uri )
throws WebdavException
{
LOG.trace( "LocalFileSystemStore.getResourceContent(" + uri + ")" );
final File file = new File( _root, uri );
InputStream in;
try
{
in = new BufferedInputStream( new FileInputStream( file ) );
}
catch ( final IOException e )
{
LOG.error( "LocalFileSystemStore.getResourceContent(" + uri + ") failed" );
throw new WebdavException( "Failed to read file: %s. Reason: %s", e, file, e.getMessage() );
}
return in;
}
@Override
public long getResourceLength( final ITransaction transaction, final String uri )
throws WebdavException
{
LOG.trace( "LocalFileSystemStore.getResourceLength(" + uri + ")" );
final File file = new File( _root, uri );
return file.length();
}
@Override
public StoredObject getStoredObject( final ITransaction transaction, final String uri )
throws WebdavException
{
StoredObject so = null;
final File file = new File( _root, uri );
if ( file.exists() )
{
so = new StoredObject();
so.setFolder( file.isDirectory() );
so.setLastModified( new Date( file.lastModified() ) );
so.setCreationDate( new Date( file.lastModified() ) );
so.setResourceLength( getResourceLength( transaction, uri ) );
}
return so;
}
}
