/*
* Copyright 2014 Red Hat, Inc. and/or its affiliates.
*
* 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.guvnor.common.services.backend.file;
import org.uberfire.commons.validation.PortablePreconditions;
import org.uberfire.java.nio.file.Files;
import org.uberfire.java.nio.file.Path;
/**
* A Filter that only accepts "Directories"
*/
public class LinkedDirectoryFilter implements LinkedFilter {
private LinkedFilter next = null;
public LinkedDirectoryFilter() {
}
/**
* Constructor that automatically chains the next filter
* @param filter
*/
public LinkedDirectoryFilter( final LinkedFilter filter ) {
setNextFilter( PortablePreconditions.checkNotNull( "filter",
filter ) );
}
@Override
public boolean accept( final Path path ) {
if ( !Files.isDirectory( path ) ) {
return false;
}
if ( next != null ) {
return next.accept( path );
}
return true;
}
@Override
public void setNextFilter( final LinkedFilter filter ) {
this.next = filter;
}
}