You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
1.1 KiB
55 lines
1.1 KiB
/**
|
|
* @module ol/format/XML
|
|
*/
|
|
import {isDocument, parse} from '../xml.js';
|
|
|
|
/**
|
|
* @classdesc
|
|
* Generic format for reading non-feature XML data
|
|
*
|
|
* @abstract
|
|
*/
|
|
class XML {
|
|
/**
|
|
* Read the source document.
|
|
*
|
|
* @param {Document|Element|string} source The XML source.
|
|
* @return {Object} An object representing the source.
|
|
* @api
|
|
*/
|
|
read(source) {
|
|
if (!source) {
|
|
return null;
|
|
} else if (typeof source === 'string') {
|
|
const doc = parse(source);
|
|
return this.readFromDocument(doc);
|
|
} else if (isDocument(source)) {
|
|
return this.readFromDocument(/** @type {Document} */ (source));
|
|
} else {
|
|
return this.readFromNode(/** @type {Element} */ (source));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Document} doc Document.
|
|
* @return {Object} Object
|
|
*/
|
|
readFromDocument(doc) {
|
|
for (let n = doc.firstChild; n; n = n.nextSibling) {
|
|
if (n.nodeType == Node.ELEMENT_NODE) {
|
|
return this.readFromNode(/** @type {Element} */ (n));
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @abstract
|
|
* @param {Element} node Node.
|
|
* @return {Object} Object
|
|
*/
|
|
readFromNode(node) {}
|
|
}
|
|
|
|
export default XML;
|