CustomFileManagerImpl.java

// @formatter:off
 /*******************************************************************************
 *
 * This file is part of JMad.
 * 
 * Copyright (c) 2008-2011, CERN. All rights reserved.
 *
 * 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.
 * 
 ******************************************************************************/
// @formatter:on

package cern.accsoft.steering.jmad.gui.manage.impl;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import cern.accsoft.steering.jmad.gui.manage.CustomFileManager;
import cern.accsoft.steering.jmad.gui.manage.CustomFileManagerListener;

public class CustomFileManagerImpl implements CustomFileManager {

    /** The list of files which are managed */
    private List<File> files = new ArrayList<File>();

    /** all the listeners to this class */
    private List<CustomFileManagerListener> listeners = new ArrayList<CustomFileManagerListener>();

    @Override
    public void add(File file) {
        this.files.add(file);
        fireChangedFiles();
    }

    @Override
    public void remove(File file) {
        this.files.remove(file);
        fireChangedFiles();
    }

    @Override
    public List<File> getFiles() {
        return this.files;
    }

    /**
     * notifies all the listeners that files were added or removed.
     */
    private void fireChangedFiles() {
        for (CustomFileManagerListener listener : listeners) {
            listener.changedFiles();
        }
    }

    @Override
    public void addListener(CustomFileManagerListener listener) {
        this.listeners.add(listener);
    }

    @Override
    public void removeListener(CustomFileManagerListener listener) {
        this.listeners.remove(listener);
    }

}