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intf.ZUGFeRDXmlHelper.pas
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{* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.}
unit intf.ZUGFeRDXmlHelper;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes
,System.IOUtils,System.Win.COMObj,System.UITypes,System.StrUtils
,Xml.xmldom,Xml.XMLDoc,Xml.XMLIntf,Xml.XMLSchema
,Xml.Win.msxmldom, Winapi.MSXMLIntf, Winapi.msxml
;
type
TZUGFeRDXmlHelper = class(TObject)
public type
TXMLLoadCallback = procedure(Node : IXMLNode) of object;
public
class procedure LoadFromChilds(const _NodeName : String; _Node : IXMLNode; _Callback : TXMLLoadCallback);
class function FindChild(_Node : IXMLNode; const _NodeName : String; out _Result : IXMLNode) : Boolean;
class function SelectNode(_XnRoot: IXMLDOMNode; const _NodePath: String; out _Result : IXMLDOMNode): Boolean;
class function SelectNodes(_XnRoot: IXMLDOMNode; const _NodePath: String; out _Result : IXMLDOMNodeList): Boolean;
class function SelectNodeText(_XnRoot: IXMLDOMNode; const _NodePath: String): String;
class function FindNode(_XnRoot: IXMLDOMNode; const _NodePath: String): Boolean;
class function PrepareDocumentForXPathQuerys(_Xml: IXMLDocument; IsZUGFeRD1: boolean = false): IXMLDOMDocument2;
end;
implementation
{ TXRechnungXMLHelper }
class function TZUGFeRDXmlHelper.SelectNodes(_XnRoot: IXMLDOMNode;
const _NodePath: String; out _Result : IXMLDOMNodeList): Boolean;
begin
Result := false;
_Result := nil;
if not Assigned(_XnRoot) then
exit;
_Result := _XnRoot.selectNodes(_NodePath);
Result := _Result <> nil;
end;
class function TZUGFeRDXmlHelper.SelectNodeText(_XnRoot: IXMLDOMNode; const _NodePath: String): String;
var
node : IXMLDOMNode;
begin
Result := '';
if TZUGFeRDXmlHelper.SelectNode(_XnRoot,_NodePath,node) then
Result := node.Text;
end;
class function TZUGFeRDXmlHelper.SelectNode(_XnRoot: IXMLDOMNode;
const _NodePath: String; out _Result : IXMLDOMNode): Boolean;
begin
Result := false;
_Result := nil;
if not Assigned(_XnRoot) then
exit;
_Result := _XnRoot.selectSingleNode(_NodePath);
Result := _Result <> nil;
end;
class function TZUGFeRDXmlHelper.FindChild(_Node: IXMLNode; const _NodeName: String;
out _Result: IXMLNode): Boolean;
begin
Result := false;
if _Node = nil then
exit;
_Result := _Node.ChildNodes.FindNode(_NodeName,'');
Result := _Result <> nil;
end;
class procedure TZUGFeRDXmlHelper.LoadFromChilds(const _NodeName: String; _Node: IXMLNode;
_Callback: TXMLLoadCallback);
var
Node : IXMLNode;
begin
Node := _Node.ChildNodes.FindNode(_NodeName,'');
if Node = nil then
exit;
_Callback(Node);
end;
class function TZUGFeRDXmlHelper.PrepareDocumentForXPathQuerys(_Xml: IXMLDocument; IsZUGFeRD1: boolean = false): IXMLDOMDocument2;
var
sNsLine: string;
ram, rsm, udt, qdt, cac, cbc: string;
function ReturnNS (Value: string; Default: String; Default1: string = ''): string;
begin
Result:= Trim(Value);
if Result='' then
if IsZUGFeRD1 and (Default1<>'') then
Result:= Default1
else
Result:= Default
end;
begin
Result := nil;
if not _Xml.Active then
exit;
ram:= ReturnNS(_XML.DocumentElement.FindNamespaceURI('ram'), 'urn:un:unece:uncefact:data:standard:ReusableAggregateBusinessInformationEntity:100',
'urn:un:unece:uncefact:data:standard:ReusableAggregateBusinessInformationEntity:12');
rsm:= ReturnNS(_XML.DocumentElement.FindNamespaceURI('rsm'), 'urn:un:unece:uncefact:data:standard:CrossIndustryInvoice:100',
'urn:ferd:CrossIndustryDocument:invoice:1p0');
udt:= ReturnNS(_XML.DocumentElement.FindNamespaceURI('udt'), 'urn:un:unece:uncefact:data:standard:UnqualifiedDataType:100',
'urn:un:unece:uncefact:data:standard:UnqualifiedDataType:15');
qdt:= ReturnNS(_XML.DocumentElement.FindNamespaceURI('qdt'), 'urn:un:unece:uncefact:data:standard:QualifiedDataType:100');
cac:= ReturnNS(_XML.DocumentElement.FindNamespaceURI('cac'), 'urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2');
cbc:= ReturnNS(_XML.DocumentElement.FindNamespaceURI('cbc'), 'urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2');
sNsLine := Format('xmlns:qdt="%s" xmlns:ram="%s" xmlns:rsm="%s" xmlns:udt="%s" xmlns:cac="%s" xmlns:cbc="%s"', [qdt, ram, rsm, udt, cac, cbc]);
Result := CoDOMDocument60.Create;
Result.preserveWhiteSpace := True; // preserve CRLF on multiline strings also
Result.loadXML(_Xml.XML.Text);
Result.setProperty('SelectionLanguage', 'XPath'); // ab 4.0 ist SelectionLanguage eh immer XPath
Result.setProperty('SelectionNamespaces', sNsLine);
end;
class function TZUGFeRDXmlHelper.FindNode(_XnRoot: IXMLDOMNode; const _NodePath: String): Boolean;
var
Node : IXMLDOMNode;
begin
Result := TZUGFeRDXmlHelper.SelectNode(_XnRoot,_NodePath,Node);
end;
end.