content: /**
   * ﻿Copyright (C) 2007 - 2019 52°North Initiative for Geospatial Open Source
   * Software GmbH
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 as published
   * by the Free Software Foundation.
   *
   * If the program is linked with libraries which are licensed under one of
   * the following licenses, the combination of the program with the linked
   * library is not considered a "derivative work" of the program:
   *
   *       • Apache License, version 2.0
   *       • Apache Software License, version 1.0
   *       • GNU Lesser General Public License, version 3
   *       • Mozilla Public License, versions 1.0, 1.1 and 2.0
   *       • Common Development and Distribution License (CDDL), version 1.0
   *
   * Therefore the distribution of the program linked with libraries licensed
   * under the aforementioned licenses, is permitted by the copyright holders
   * if the distribution is compliant with both the GNU General Public
   * License version 2 and the aforementioned licenses.
   *
   * This program is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
   * Public License for more details.
   */
  package org.n52.wps.server.database;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileNotFoundException;
  import java.io.IOException;
  import org.apache.commons.io.FileUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * After calling close on this InputStream, will attempt to delete the
   * underlying file
   *
   * @author isuftin (Ivan Suftin, USGS)
   */
  public class SelfCleaningFileInputStream extends FileInputStream {
  
  	private static final Logger LOGGER = LoggerFactory.getLogger(SelfCleaningFileInputStream.class);
  	private File file;
  
  	public SelfCleaningFileInputStream(File file) throws FileNotFoundException {
  		super(file);
  	}
  
  	@Override
  	public void close() throws IOException {
  		super.close();
  		
  		String path = file.getAbsolutePath();
  		if (!file.exists()) {
  			LOGGER.debug("File at {} does not exist", path);
  		} else if (!file.isFile()) {
  			LOGGER.debug("File at {} is not a file", path);
  		} else if (!file.canWrite()) {
  			LOGGER.debug("File at {} can not be written to", path);
  		} else {
  			FileUtils.deleteQuietly(file);
  		}
  	}
  }
  