ispyb.common.util.IspybFileUtils.java Source code

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Here is the source code for ispyb.common.util.IspybFileUtils.java

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/*******************************************************************************
 * This file is part of ISPyB.
 * 
 * ISPyB is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * ISPyB 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 Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with ISPyB.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors : S. Delageniere, R. Leal, L. Launer, K. Levik, S. Veyrier, P. Brenchereau, M. Bodin, A. De Maria Antolinos
 ******************************************************************************/
package ispyb.common.util;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;

/***
 * This class defines the methods to manage files tar in ISpyB
 * 
 * @author BODIN
 *
 */
public final class IspybFileUtils {

    private static final int BUFFER_SIZE = 1024;

    public static byte[] getFile(String filePath) throws IOException {
        File file = new File(filePath);
        if (file.exists()) {
            byte[] fileInBytes = new byte[(int) file.length()];
            InputStream inputStream = null;
            try {
                inputStream = new FileInputStream(file);
                inputStream.read(fileInBytes);
            } catch (FileNotFoundException e) {
                e.printStackTrace();
                throw e;
            } finally {
                inputStream.close();
            }
            return fileInBytes;
        }
        return null;
    }

    /**
     * returns the list of files in the given directoryFile (and sub-directories) with the given fileName
     * 
     * @param directoryFile
     * @param fileName
     * @return
     */
    public static List<File> getListFile(File directoryFile, String fileName) {
        List<File> resultFilesList = new ArrayList<File>();
        if (directoryFile == null)
            return resultFilesList;
        // File[] list = directoryFile.listFiles();
        List<File> listFile = Arrays.asList(directoryFile.listFiles());
        Collections.sort(listFile, Collections.reverseOrder());
        if (listFile != null) {
            for (int k = 0; k < listFile.size(); k++) {
                if (listFile.get(k).isFile() && listFile.get(k).getName().equals(fileName)) {
                    resultFilesList.add(listFile.get(k));
                } else if (listFile.get(k).isDirectory()) {
                    List<File> subList = getListFile(listFile.get(k), fileName);
                    resultFilesList.addAll(subList);
                }
            }
        }
        return resultFilesList;
    }

}