001    /**
002     * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.documentlibrary.antivirus;
016    
017    import com.liferay.portal.kernel.exception.SystemException;
018    import com.liferay.portal.kernel.util.StreamUtil;
019    
020    import java.io.File;
021    import java.io.FileInputStream;
022    import java.io.FileNotFoundException;
023    import java.io.InputStream;
024    
025    /**
026     * @author Michael C. Han
027     */
028    public abstract class BaseInputStreamAntivirusScanner
029            implements AntivirusScanner {
030    
031            public boolean isActive() {
032                    return _ACTIVE;
033            }
034    
035            public void scan(File file)
036                    throws AntivirusScannerException, SystemException {
037    
038                    InputStream inputStream = null;
039    
040                    try {
041                            inputStream = new FileInputStream(file);
042    
043                            scan(inputStream);
044                    }
045                    catch (FileNotFoundException fnfe) {
046                            throw new SystemException("Unable to scan file", fnfe);
047                    }
048                    finally {
049                            StreamUtil.cleanUp(inputStream);
050                    }
051            }
052    
053            private static final boolean _ACTIVE = true;
054    
055    }