/**
    * Copyright 2010-2013 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.common.util.execute;
  
  import java.io.File;
  import java.util.List;
  
  import org.kuali.common.util.Assert;
  import org.kuali.common.util.LocationUtils;
  import org.kuali.common.util.nullify.NullUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public abstract class AbstractCopyLocationsExecutable implements Executable {
  
  	private static final Logger logger = LoggerFactory.getLogger(AbstractCopyLocationsExecutable.class);
  
  	String locationListing;
  	File directory;
  
  	protected abstract List<File> getFiles(List<String> locations);
  
  	@Override
  	public void execute() {
  		if (NullUtils.isNullOrNone(locationListing)) {
  			logger.info("Skipping execution.  Location listing [{}]", locationListing);
  			return;
  		}
  		Assert.notNull(locationListing);
  		Assert.notNull(directory);
  		Assert.isTrue(LocationUtils.exists(locationListing));
  		logger.info("Copying [{}] -> [{}]", locationListing, LocationUtils.getCanonicalPath(directory));
  		List<String> locations = LocationUtils.getLocations(locationListing);
  		List<File> files = getFiles(locations);
  		LocationUtils.copyLocationsToFiles(locations, files);
  		logger.info("Copied {} files", locations.size());
  	}
  
  	public String getLocationListing() {
  		return locationListing;
  	}
  
  	public void setLocationListing(String locationListing) {
  		this.locationListing = locationListing;
  	}
  
  	public File getDirectory() {
  		return directory;
  	}
  
  	public void setDirectory(File directory) {
  		this.directory = directory;
  	}
  }