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.core; 021 022import java.io.IOException; 023import java.io.InputStream; 024 025import org.apache.commons.codec.digest.DigestUtils; 026import org.apache.commons.logging.Log; 027import org.apache.commons.logging.LogFactory; 028import org.nuxeo.ecm.core.api.Blob; 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, Blob blob) { 044 return create(repositoryName, path, computeDigest(blob)); 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(Blob blob) { 052 try (InputStream in = blob.getStream()) { 053 return DigestUtils.md5Hex(blob.getStream()); 054 } catch (IOException e) { 055 log.error(e, e); 056 return ""; 057 } 058 } 059 060}