001/* 002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Thomas Roger 018 */ 019 020package org.nuxeo.ecm.csv; 021 022import java.io.File; 023import java.io.FileInputStream; 024import java.io.IOException; 025import java.io.InputStream; 026 027import org.apache.commons.codec.digest.DigestUtils; 028import org.apache.commons.io.IOUtils; 029import org.apache.commons.logging.Log; 030import org.apache.commons.logging.LogFactory; 031 032/** 033 * Helper class to compute a unique id for an import task. 034 * 035 * @since 5.7.3 036 */ 037public class CSVImportId { 038 039 private static final Log log = LogFactory.getLog(CSVImportId.class); 040 041 private CSVImportId() { 042 // utility class 043 } 044 045 public static String create(String repositoryName, String path, File csvFile) { 046 return create(repositoryName, path, computeDigest(csvFile)); 047 } 048 049 public static String create(String repositoryName, String path, String csvBlobDigest) { 050 return repositoryName + ':' + path + ":csvImport:" + csvBlobDigest; 051 } 052 053 protected static String computeDigest(File file) { 054 InputStream in = null; 055 try { 056 in = new FileInputStream(file); 057 return DigestUtils.md5Hex(in); 058 } catch (IOException e) { 059 log.error(e, e); 060 return ""; 061 } finally { 062 IOUtils.closeQuietly(in); 063 } 064 } 065 066}