com.ephesoft.dcma.util.FileExistenceFilter.java Source code

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Here is the source code for com.ephesoft.dcma.util.FileExistenceFilter.java

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/********************************************************************************* 
* Ephesoft is a Intelligent Document Capture and Mailroom Automation program 
* developed by Ephesoft, Inc. Copyright (C) 2015 Ephesoft Inc. 
* 
* This program is free software; you can redistribute it and/or modify it under 
* the terms of the GNU Affero General Public License version 3 as published by the 
* Free Software Foundation with the addition of the following permission added 
* to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK 
* IN WHICH THE COPYRIGHT IS OWNED BY EPHESOFT, EPHESOFT DISCLAIMS THE WARRANTY 
* OF NON INFRINGEMENT OF THIRD PARTY RIGHTS. 
* 
* 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 Affero General Public License for more 
* details. 
* 
* You should have received a copy of the GNU Affero General Public License along with 
* this program; if not, see http://www.gnu.org/licenses or write to the Free 
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 
* 02110-1301 USA. 
* 
* You can contact Ephesoft, Inc. headquarters at 111 Academy Way, 
* Irvine, CA 92617, USA. or at email address info@ephesoft.com. 
* 
* The interactive user interfaces in modified source and object code versions 
* of this program must display Appropriate Legal Notices, as required under 
* Section 5 of the GNU Affero General Public License version 3. 
* 
* In accordance with Section 7(b) of the GNU Affero General Public License version 3, 
* these Appropriate Legal Notices must retain the display of the "Ephesoft" logo. 
* If the display of the logo is not reasonably feasible for 
* technical reasons, the Appropriate Legal Notices must display the words 
* "Powered by Ephesoft". 
********************************************************************************/

package com.ephesoft.dcma.util;

import java.io.File;
import java.io.FilenameFilter;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang.StringUtils;

import com.ephesoft.dcma.util.logger.EphesoftLogger;
import com.ephesoft.dcma.util.logger.EphesoftLoggerFactory;

/**
 * 
 * Filters the directory with given names. Checks whether the file exist with the given names. The methods of the file using this
 * filter will return a String array of length 'n' if the file exists(n files that exist under the directory). else an empty String
 * array
 * 
 * @author Ephesoft
 * @version 1.0 Last Updated Date : 29-Nov-2013
 * @see FilenameFilter
 */
public class FileExistenceFilter implements FilenameFilter {

    /**
     * Logger for logging the messages.
     */
    private static final EphesoftLogger LOGGER = EphesoftLoggerFactory.getLogger(FileUtils.class);

    /**
     * Names of files to be accepted for the filtration.
     */
    private final List<String> filesList = new ArrayList<String>();

    /**
     * Constructor which accepts the names of the files to be Searched Under the directory
     * 
     * @param names names to the file to be searched. If any argument is found to be null, it would be ignored.
     */
    public FileExistenceFilter(final String... names) {
        LOGGER.info("Files Filteration.");
        if (null != names && names.length != 0) {
            for (final String name : names) {
                LOGGER.info("File came for filteration: ", name);
                if (!EphesoftStringUtil.isNullOrEmpty(name)) {
                    LOGGER.info("File added. ");
                    filesList.add(name.toLowerCase());
                }
            }
        }
    }

    @Override
    public boolean accept(final File directory, final String name) {
        LOGGER.info("Checking for file ", name);
        boolean acceptFile = false;
        acceptFile = filesList.contains(name.toLowerCase());
        return acceptFile;
    }
}