1/* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15const URI_SPLIT = '/' 16 17let dataUriUtils = { 18 getId : (uri) => { 19 console.debug("DataUriUtils getId called."); 20 if (typeof uri !== 'string') { 21 return -1; 22 } 23 let index = uri.lastIndexOf(URI_SPLIT); 24 if (index === -1) { 25 return -1; 26 } 27 let ret = uri.substring(index + 1); 28 if (ret === "" || isNaN(Number(ret))) { 29 return -1; 30 } 31 return Number(ret); 32 }, 33 updateId : (uri, id) => { 34 console.debug("DataUriUtils updateId called."); 35 if (typeof uri !== 'string' || typeof id !== 'number') { 36 return uri; 37 } 38 let ret = dataUriUtils.deleteId(uri); 39 if (ret === uri) { 40 return uri; 41 } 42 return ret + URI_SPLIT + id; 43 }, 44 deleteId : (uri) => { 45 console.debug("DataUriUtils deleteId called."); 46 if (typeof uri !== 'string') { 47 return uri; 48 } 49 let index = uri.lastIndexOf(URI_SPLIT); 50 if (index === -1) { 51 return uri; 52 } 53 var id = uri.substring(index + 1); 54 if (id === "" || isNaN(Number(id))) { 55 return uri; 56 } 57 return uri.substring(0, index); 58 }, 59 attachId : (uri, id) => { 60 console.debug("DataUriUtils attachId called."); 61 if (typeof uri !== 'string' || typeof id !== 'number') { 62 return uri; 63 } 64 return uri + URI_SPLIT + id; 65 } 66}; 67 68export default dataUriUtils