CleanupAfterDeliveryFileMediaResource.java

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.  
* <p>
*/ 

package org.olat.core.gui.media;

import java.io.File;

/**
 * This media resource deletes the file as soon as it is delivered to the
 * client. The file is delivered as attachment.
 * 
 * @author Felix Jost
 */
public class CleanupAfterDeliveryFileMediaResource extends FileMediaResource {

	/**
	 * file assumed to exist, but if it does not exist or cannot be read,
	 * getInputStream() will return null and the class will behave properly.
	 * 
	 * @param file
	 */
	public CleanupAfterDeliveryFileMediaResource(File file) {
		super(file, true);
	}
	
	@Override
	public boolean acceptRanges() {
		return false;
	}

	/**
	 * @see org.olat.core.gui.media.MediaResource#release()
	 */
	@Override
	public void release() {
		file.delete();
	}
}