001/* 002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Thomas Roger 016 */ 017 018package org.nuxeo.ecm.csv; 019 020import java.io.File; 021import java.io.FileInputStream; 022import java.io.IOException; 023import java.io.InputStream; 024 025import org.apache.commons.codec.digest.DigestUtils; 026import org.apache.commons.io.IOUtils; 027import org.apache.commons.logging.Log; 028import org.apache.commons.logging.LogFactory; 029 030/** 031 * Helper class to compute a unique id for an import task. 032 * 033 * @since 5.7.3 034 */ 035public class CSVImportId { 036 037 private static final Log log = LogFactory.getLog(CSVImportId.class); 038 039 private CSVImportId() { 040 // utility class 041 } 042 043 public static String create(String repositoryName, String path, File csvFile) { 044 return create(repositoryName, path, computeDigest(csvFile)); 045 } 046 047 public static String create(String repositoryName, String path, String csvBlobDigest) { 048 return repositoryName + ':' + path + ":csvImport:" + csvBlobDigest; 049 } 050 051 protected static String computeDigest(File file) { 052 InputStream in = null; 053 try { 054 in = new FileInputStream(file); 055 return DigestUtils.md5Hex(in); 056 } catch (IOException e) { 057 log.error(e, e); 058 return ""; 059 } finally { 060 IOUtils.closeQuietly(in); 061 } 062 } 063 064}