com.recomdata.transmart.data.export.ExportDataProcessor.java Source code

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Here is the source code for com.recomdata.transmart.data.export.ExportDataProcessor.java

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/*************************************************************************
 * tranSMART - translational medicine data mart
 * 
 * Copyright 2008-2012 Janssen Research & Development, LLC.
 * 
 * This product includes software developed at Janssen Research & Development, LLC.
 * 
 * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License 
 * as published by the Free Software  * Foundation, either version 3 of the License, or (at your option) any later version, along with the following terms:
 * 1.   You may convey a work based on this program in accordance with section 5, provided that you retain the above notices.
 * 2.   You may convey verbatim copies of this program code as you receive it, in any medium, provided that you retain the above notices.
 * 
 * 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.
 * 
 * You should have received a copy of the GNU General Public License along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 *
 ******************************************************************/

/**
 * 
 */
package com.recomdata.transmart.data.export;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Map;

import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
import org.codehaus.groovy.grails.commons.ConfigurationHolder;

import com.recomdata.transmart.data.export.util.FTPUtil;

/**
 * @author SMunikuntla
 * 
 */
public class ExportDataProcessor {

    private static org.apache.log4j.Logger log = Logger.getLogger(ExportDataProcessor.class);
    @SuppressWarnings("rawtypes")
    private static final Map config = ConfigurationHolder.getFlatConfig();

    private static final String TEMP_DIR = (String) config.get("com.recomdata.plugins.tempFolderDirectory");

    public InputStream getExportJobFileStream(String fileToGet) {
        InputStream inputStream = null;
        File jobZipFile = null;
        try {
            if (StringUtils.isEmpty(fileToGet))
                return null;

            inputStream = FTPUtil.downloadFile(true, fileToGet);
            //If the file was not found at the FTP location try to download it from the server Temp dir
            if (null == inputStream) {
                String filePath = TEMP_DIR + File.separator + fileToGet;
                jobZipFile = new File(filePath);
                if (jobZipFile.isFile()) {
                    inputStream = new FileInputStream(jobZipFile);
                }
            }
        } catch (Exception e) {
            log.error("Failed to SFTP GET the ZIP file");
        }

        return inputStream;
    }

    @SuppressWarnings("unused")
    private String getZipFileName(String studyName) {
        StringBuilder fileName = new StringBuilder();
        DateFormat formatter = new SimpleDateFormat("MMddyyyyHHmmss");
        fileName.append(TEMP_DIR);
        fileName.append(studyName);
        fileName.append(formatter.format(Calendar.getInstance().getTime()));
        fileName.append(".zip");

        return fileName.toString();
    }
}