gshell-support/gshell-vfs/src/main/java/org/apache/geronimo/gshell/vfs/selector/AggregateFileSelector.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.geronimo.gshell.vfs.selector;

import org.apache.commons.vfs.FileSelectInfo;
import org.apache.commons.vfs.FileSelector;

import java.util.ArrayList;
import java.util.Collection;

/**
 * Apply multipule selectors.
 *
 * @version $Rev$ $Date$
 */
public class AggregateFileSelector
    implements FileSelector
{
    private final Collection<FileSelector> selectors;

    public AggregateFileSelector(final Collection<FileSelector> selectors) {
        assert selectors != null;

        this.selectors = selectors;
    }

    public AggregateFileSelector() {
        this(new ArrayList<FileSelector>());
    }

    public Collection<FileSelector> getSelectors() {
        return selectors;
    }

    public boolean includeFile(final FileSelectInfo selection) throws Exception {
        boolean include = true;

        for (FileSelector selector : selectors) {
            if (!selector.includeFile(selection)) {
                include = false;
                break;
            }
        }

        return include;
    }

    public boolean traverseDescendents(final FileSelectInfo selection) throws Exception {
        boolean include = true;

        for (FileSelector selector : selectors) {
            if (!selector.traverseDescendents(selection)) {
                include = false;
                break;
            }
        }

        return include;
    }
}