NullFileEventNotifierFactory.java

/* Copyright 2012 Google, Inc.
 *
 * 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.arbeitspferde.groningen;
import org.arbeitspferde.groningen.utility.FileEventNotifier;
import org.arbeitspferde.groningen.utility.FileEventNotifierFactory;

import java.util.concurrent.TimeUnit;

/**
 * A simple {@link FileEventNotifier} that does nothing and is only useful for testing.
 */
public class NullFileEventNotifierFactory implements FileEventNotifierFactory {

  @Override
  public FileEventNotifier fileEventNotifierFor(final String path, final long pollingInterval,
      final TimeUnit timeUnit, final Runnable callback, final boolean initialNotification) {
    return new FileEventNotifier() {
      @Override
      public void stop() {
      }
    };
  }
}