/*
* Copyright 2002-2005 The Apache Software Foundation.
*
* 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 org.apache.commons.vfs.provider;
import org.apache.commons.vfs.FileObject;
import org.apache.commons.vfs.FileSystemException;
import org.apache.commons.vfs.FileSystemOptions;
/**
* Description
*
* @author <a href="mailto:imario@apache.org">Mario Ivankovits</a>
*/
public abstract class CompositeFileProvider extends AbstractFileProvider
{
public CompositeFileProvider()
{
super();
}
/**
* The schemes to use for resolve
*/
protected abstract String[] getSchemes();
/**
* Locates a file object, by absolute URI.
*/
public FileObject findFile(final FileObject baseFile,
final String uri,
final FileSystemOptions fileSystemOptions)
throws FileSystemException
{
StringBuffer buf = new StringBuffer(80);
UriParser.extractScheme(uri, buf);
String[] schemes = getSchemes();
for (int iterSchemes = 0; iterSchemes < schemes.length; iterSchemes++)
{
buf.insert(0, ":");
buf.insert(0, schemes[iterSchemes]);
}
FileObject fo = getContext().getFileSystemManager().resolveFile(buf.toString(), fileSystemOptions);
return fo;
}
}