/*
 * 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
 *
 *      https://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.io.monitor;

import java.io.File;

/**
 * Convenience {@link FileAlterationListener} implementation that does nothing.
 *
 * @see FileAlterationObserver
 * @since 2.0
 */
public class FileAlterationListenerAdaptor implements FileAlterationListener {

    /**
     * Construct a new instance.
     */
    public FileAlterationListenerAdaptor() {
        // empty
    }

    /**
     * Directory changed Event.
     *
     * @param directory The directory changed (ignored).
     */
    @Override
    public void onDirectoryChange(final File directory) {
        // noop
    }

    /**
     * Directory created Event.
     *
     * @param directory The directory created (ignored).
     */
    @Override
    public void onDirectoryCreate(final File directory) {
        // noop
    }

    /**
     * Directory deleted Event.
     *
     * @param directory The directory deleted (ignored).
     */
    @Override
    public void onDirectoryDelete(final File directory) {
        // noop
    }

    /**
     * File changed Event.
     *
     * @param file The file changed (ignored).
     */
    @Override
    public void onFileChange(final File file) {
        // noop
    }

    /**
     * File created Event.
     *
     * @param file The file created (ignored).
     */
    @Override
    public void onFileCreate(final File file) {
        // noop
    }

    /**
     * File deleted Event.
     *
     * @param file The file deleted (ignored).
     */
    @Override
    public void onFileDelete(final File file) {
        // noop
    }

    /**
     * File system observer started checking event.
     *
     * @param observer The file system observer (ignored).
     */
    @Override
    public void onStart(final FileAlterationObserver observer) {
        // noop
    }

    /**
     * File system observer finished checking event.
     *
     * @param observer The file system observer (ignored).
     */
    @Override
    public void onStop(final FileAlterationObserver observer) {
        // noop
    }

}
