103 lines
2.9 KiB
JavaScript
103 lines
2.9 KiB
JavaScript
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var util = require('../util');
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var XmlNode = require('./xml-node').XmlNode;
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var XmlText = require('./xml-text').XmlText;
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function XmlBuilder() { }
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XmlBuilder.prototype.toXML = function(params, shape, rootElement, noEmpty) {
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var xml = new XmlNode(rootElement);
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applyNamespaces(xml, shape, true);
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serialize(xml, params, shape);
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return xml.children.length > 0 || noEmpty ? xml.toString() : '';
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};
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function serialize(xml, value, shape) {
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switch (shape.type) {
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case 'structure': return serializeStructure(xml, value, shape);
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case 'map': return serializeMap(xml, value, shape);
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case 'list': return serializeList(xml, value, shape);
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default: return serializeScalar(xml, value, shape);
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}
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}
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function serializeStructure(xml, params, shape) {
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util.arrayEach(shape.memberNames, function(memberName) {
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var memberShape = shape.members[memberName];
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if (memberShape.location !== 'body') return;
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var value = params[memberName];
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var name = memberShape.name;
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if (value !== undefined && value !== null) {
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if (memberShape.isXmlAttribute) {
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xml.addAttribute(name, value);
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} else if (memberShape.flattened) {
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serialize(xml, value, memberShape);
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} else {
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var element = new XmlNode(name);
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xml.addChildNode(element);
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applyNamespaces(element, memberShape);
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serialize(element, value, memberShape);
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}
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}
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});
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}
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function serializeMap(xml, map, shape) {
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var xmlKey = shape.key.name || 'key';
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var xmlValue = shape.value.name || 'value';
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util.each(map, function(key, value) {
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var entry = new XmlNode(shape.flattened ? shape.name : 'entry');
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xml.addChildNode(entry);
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var entryKey = new XmlNode(xmlKey);
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var entryValue = new XmlNode(xmlValue);
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entry.addChildNode(entryKey);
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entry.addChildNode(entryValue);
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serialize(entryKey, key, shape.key);
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serialize(entryValue, value, shape.value);
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});
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}
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function serializeList(xml, list, shape) {
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if (shape.flattened) {
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util.arrayEach(list, function(value) {
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var name = shape.member.name || shape.name;
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var element = new XmlNode(name);
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xml.addChildNode(element);
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serialize(element, value, shape.member);
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});
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} else {
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util.arrayEach(list, function(value) {
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var name = shape.member.name || 'member';
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var element = new XmlNode(name);
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xml.addChildNode(element);
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serialize(element, value, shape.member);
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});
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}
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}
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function serializeScalar(xml, value, shape) {
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xml.addChildNode(
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new XmlText(shape.toWireFormat(value))
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);
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}
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function applyNamespaces(xml, shape, isRoot) {
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var uri, prefix = 'xmlns';
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if (shape.xmlNamespaceUri) {
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uri = shape.xmlNamespaceUri;
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if (shape.xmlNamespacePrefix) prefix += ':' + shape.xmlNamespacePrefix;
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} else if (isRoot && shape.api.xmlNamespaceUri) {
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uri = shape.api.xmlNamespaceUri;
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}
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if (uri) xml.addAttribute(prefix, uri);
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}
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/**
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* @api private
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*/
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module.exports = XmlBuilder;
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