public sealed override object Evaluate(NodeEvaluationContext evaluationContext)
{
var leftNodeValue = LeftNode.Evaluate(evaluationContext);
if (leftNodeValue == DependencyProperty.UnsetValue)
{
return(DependencyProperty.UnsetValue);
}
NodeValueType leftNodeValueType = GetNodeValueType(leftNodeValue);
if (leftNodeValueType == NodeValueType.Boolean)
{
// give base a chance to yield a result without evaluating the right node
var result = this.DetermineResultPreRightEvaluation((bool)leftNodeValue);
if (result.HasValue)
{
return(result.Value);
}
}
object rightNodeValue = RightNode.Evaluate(evaluationContext);
if (rightNodeValue == DependencyProperty.UnsetValue)
{
return(DependencyProperty.UnsetValue);
}
NodeValueType rightNodeValueType = GetNodeValueType(rightNodeValue);
exceptionHelper.ResolveAndThrowIf(leftNodeValueType != NodeValueType.Boolean || rightNodeValueType != NodeValueType.Boolean, "OperandsNotBoolean", OperatorSymbols, leftNodeValueType, rightNodeValueType);
return(this.DetermineResultPostRightEvaluation((bool)leftNodeValue, (bool)rightNodeValue));
}
public ClickElement(Page page, XElement xel, int actionIndex)
: base(page, xel, actionIndex)
{
_xpaths = GetXPaths();
if (_xpaths.Count == 0
|| xel.Element("DestinationPage") == null || !Int32.TryParse(xel.Element("DestinationPage").Value, out _destinationPage))
{
throw new Exception("Error in ClickElement xml Action element.");
}
_startExprSep = GetStartExpSep();
_endExprSep = GetEndExpSep();
_nodeValueType = GetNodeValueType();
// ClickElement treba izvuci href iz targetiranog noda koji vodi na kliknuti link
// po defaultu bi trebao pocinjati sa hreaf=", i zavrsiti sa " ukoliko Start i End Expression separatori nisu navedeni
if (_startExprSep == null)
{
_startExprSep = new StartExpressionSeparator("href=\"", false, true);
}
if (_endExprSep == null)
{
_endExprSep = new EndExpressionSeparator("\"", false, true);
}
// isto tako po defaultu uzima NodevalueType OuterHtml ukoliko nije naveden
if (_nodeValueType == null)
_nodeValueType = NodeValueType.OuterHtml;
}
public CastNode(Node node, NodeValueType targetType)
: base(node)
{
Debug.Assert(Enum.IsDefined(typeof(NodeValueType), targetType));
Debug.Assert(targetType != NodeValueType.Unknown);
this.targetType = targetType;
}
/**
* @ 将IPListNode对象转换为JSON字符串
* */
public override void WriterJson(TextWriter writer)
{
writer.Write(Utilities.JSON_BRACKET_LEFT);
int len = Count;
for (int i = 0; i < len; i++)
{
var item = this[i];
NodeValueType valueType = GetValueType(item.Value);
string keyName = valueType.ToString().ToLower();
if (valueType == (valueType & (NodeValueType.DICT | NodeValueType.ARRAY)))
{
IPListNode node = (IPListNode)item;
node.WriterJson(writer);
string comma = Utilities.IsWriterComma(len, i, 1);
writer.Write(comma);
}
else
{
FormatJson(writer, "", item);
string comma = Utilities.IsWriterComma(len, i, 1);
writer.Write(comma);
}
}
writer.Write(Utilities.JSON_BRACKET_RIGHT);
}
/**
* @ 格式化值的输出
* @ ht LdfHashtable对象
* */
protected virtual void FormatXml(XmlWriter writer, IPListNode ht)
{
string result = string.Empty;
NodeValueType valueType = GetValueType(ht.Value);
string keyString = valueType.ToString().ToLower();
writer.WriteStartElement(keyString);
switch (valueType)
{
case NodeValueType.DATA:
writer.WriteString(Convert.ToBase64String(ht.Value as byte[]));
break;
case NodeValueType.DATE:
string plistDate = ht.Value.ObjToDateTime().ToString("yyyy'-'MM'-'dd'T'HH':'mm':'ss.ffffffZ");
writer.WriteString(plistDate);
break;
//case "key":
case NodeValueType.REAL:
case NodeValueType.STRING:
case NodeValueType.INTEGER:
writer.WriteString(ht.Value.ToString());
break;
}
writer.WriteEndElement();
}
public GetElementValue(Page page, XElement xel, int actionIndex)
: base(page, xel, actionIndex)
{
if (xel.Element("FieldName") == null)
{
throw new Exception("Error in GetElementValue xml Action element, missing FieldName!");
}
_fieldName = xel.Element("FieldName").Value;
_predefinedValue = GetPredefinedValue();
if (_predefinedValue == null)
{
_xpaths = GetXPaths();
if (_xpaths.Count == 0)
{
throw new Exception("Error in GetElementValue xml Action element, missing XPaths!");
}
_nodeValueType = GetNodeValueType();
_startExprSep = GetStartExpSep();
_endExprSep = GetEndExpSep();
_lstReplacements = GetReplacements();
}
}
private PacketNode PrepareBaseType(NodeValueType valueType, Type type, string name)
{
var node = _doc.CreateNode();
_cur.Append(node);
string typ = Framework.Assembly.GetTypeName(type);
node.context.type = typ;
node.context.realType = typ;
node.context.name = name;
node.context.valueType = valueType;
return(node);
}
/**
* @ 获取节点的值类型
**/
private void GetValueType(KeyValuePair <string, IPListNode> item, out NodeValueType valueType, out object objValue)
{
bool hasChildren = item.Value.HasChildren;
objValue = null;
if (hasChildren)
{
valueType = GetValueType(item.Value);
objValue = item.Value;
}
else
{
valueType = GetValueType(item.Value.Value);
objValue = item.Value.Value;
}
}
private List<string> _xpaths; // jel treba vise od jednog xpatha?! (se moze link na iducu straicu na nekoj od stranica pojavi u drugom xpathu?!)
#endregion Fields
#region Constructors
public PageList(Page page, XElement xel, int actionIndex)
: base(page, xel, actionIndex)
{
_xpaths = GetXPaths();
if (_xpaths.Count == 0)
{
throw new Exception("Error in PageList xml Action element. Missing XPath!");
}
// pronaci LoadPage element na ovoj stranici
List<XElement> actions = (from els in _page.Xdoc.Descendants("Action")
where Int32.Parse(els.Element("Page").Value) == _page.PageIndex
select els).ToList();
for (int i = 0; i < actions.Count; ++i)
{
if (actions[i].Element("ActionType").Value == ActionTypeKind.PagePlaceHolder.ToString())
{
_pagePlaceHolderIndex = i;
break;
}
}
if (_pagePlaceHolderIndex < 0)
{
throw new Exception("LoadPage action not found for current PageList action!");
}
_nodeValueType = GetNodeValueType();
_startExprSep = GetStartExpSep();
_endExprSep = GetEndExpSep();
// PageList treba izvuci href iz targetiranog noda koji vodi na iducu stranicu
// po defaultu bi trebao pocinjati sa hreaf=", i zavrsiti sa " ukoliko Start i End Expression separatori nisu navedeni
if (_startExprSep == null)
{
_startExprSep = new StartExpressionSeparator("href=\"", false, true);
}
if(_endExprSep == null)
{
_endExprSep = new EndExpressionSeparator("\"", false, true);
}
}
public void SaveNodeValueType(NodeValueType model)
{
using (var db = GetDbContext())
{
if (model.ID > 0)
{
var entity = db.NodeValueTypes.FirstOrDefault(e => e.ID == model.ID);
db.Entry(entity).CurrentValues.SetValues(model);
}
else
{
db.NodeValueTypes.Add(model);
}
db.SaveChanges();
ClearValueCache();
}
}
/**
* @ 把元素的值包装成接口 IPListNode 类型
* */
protected virtual IPListNode ParseNode(XElement reader)
{
string key = reader.Name.LocalName;
NodeValueType valueType = key.ToUpper().ToEnum <NodeValueType>();
IPListNode node = new PListDict();
string val = string.Empty;
switch (valueType)
{
case NodeValueType.DICT:
node.ReaderXml(reader);
break;
case NodeValueType.ARRAY:
node = new PListArray();
node.ReaderXml(reader);
break;
case NodeValueType.DATE:
node.Value = reader.Value.ToDateTime();
break;
case NodeValueType.DATA:
node.Value = reader.Value.ToBytes();
break;
case NodeValueType.FALSE:
case NodeValueType.TRUE:
node.Value = valueType == NodeValueType.TRUE;
break;
case NodeValueType.REAL:
node.Value = reader.Value.ToDecimal();
break;
case NodeValueType.INTEGER:
node.Value = reader.Value.ToInt();
break;
default:
node.Value = reader.Value;
break;
}
return(node);
}
/**
* @ 根据传入的值给出 LdfValueType 类型
* @ value要判断的值
* */
protected virtual NodeValueType GetValueType(object value)
{
NodeValueType vt = NodeValueType.STRING;
if (value is PListArray)
{
vt = NodeValueType.ARRAY;
}
else if (value is PListDict)
{
vt = NodeValueType.DICT;
}
else if (value is string)
{
vt = NodeValueType.STRING;
}
else if (value is DateTime)
{
vt = NodeValueType.DATE;
}
else if (value is int || value is long)
{
vt = NodeValueType.INTEGER;
}
else if (value is decimal || value is float || value is double)
{
vt = NodeValueType.REAL;
}
else if (value is bool)
{
if (value.ObjToBoolean())
{
vt = NodeValueType.TRUE;
}
else
{
vt = NodeValueType.FALSE;
}
}
return(vt);
}
/**
* @ 实现 IPListNode 接口
* */
public override void WriterXml(XmlWriter writer)
{
foreach (var item in properties)
{
NodeValueType valueType = GetValueType(item.Value);
string keyName = valueType.ToString().ToLower();
if (valueType == (valueType & (NodeValueType.DICT | NodeValueType.ARRAY)))
{
writer.WriteStartElement(keyName);
IPListNode node = (IPListNode)item;
node.WriterXml(writer);
writer.WriteEndElement();
}
else
{
FormatXml(writer, item);
}
}
}
/**
* @ 格式化值的输出
* @ ht LdfHashtable对象
* */
protected virtual void FormatJson(TextWriter writer, string key, IPListNode ht)
{
string result = string.Empty;
NodeValueType valueType = GetValueType(ht.Value);
if (key.IsNotNullOrEmpty())
{
writer.Write(string.Format("{0}{1}{0}{2}", Utilities.JSON_QUOTES, key, Utilities.JSON_COLON));
}
string keyString = valueType.ToString().ToLower();
switch (valueType)
{
case NodeValueType.DATA:
string data = Convert.ToBase64String(ht.Value as byte[]);
FormatJson(writer, data);
break;
case NodeValueType.DATE:
long unixDate = ht.Value.ObjToLong();
FormatJson(writer, unixDate);
break;
//case "key":
case NodeValueType.STRING:
FormatJson(writer, ht.Value);
break;
case NodeValueType.REAL:
case NodeValueType.INTEGER:
writer.Write(ht.Value);
break;
case NodeValueType.TRUE:
case NodeValueType.FALSE:
writer.Write(ht.Value.ObjToInt());
break;
}
}
/**
* @ 索引，区分 Hashtable 和 IList 对象
* @ key 如果当前对象的值是 LdfHashtable 对象，则 key 应当为 hash key
* @ 如果当前对象值类型为 IList，则自动将 key 转换成下标
* */
public override IPListNode this[string key]
{
get
{
IPListNode plistNode = null;
NodeValueType valueType = GetValueType(this.Value);
if (valueType == NodeValueType.ARRAY && key.IsInt())
{
IList list = this.Value as IList;
plistNode = list[key.ObjToInt()] as IPListNode;
}
else
{
plistNode = properties[key];
}
return(plistNode);
}
set
{
value.Order = Count + 1;
properties[key] = value;
}
}
private PacketNode FindChildNode(PacketElement element, string name, Type type, NodeValueType valueType)
{
var children = _cur.children;
return(children.Find((c) => {
return c.context.name == name &&
c.context.type == Framework.Assembly.GetTypeName(type) &&
c.context.valueType == valueType;
}));
}
public static bool IsNumericalNodeValueType(NodeValueType nodeValueType)
{
Debug.Assert(Enum.IsDefined(typeof(NodeValueType), nodeValueType));
return nodeValueType >= NodeValueType.Byte;
}
public static bool IsIntegralNodeValueType(NodeValueType nodeValueType)
{
Debug.Assert(Enum.IsDefined(typeof(NodeValueType), nodeValueType));
return (nodeValueType >= NodeValueType.Byte) && (nodeValueType <= NodeValueType.Int64);
}
public string GetNodeValue(List<string> xpaths, NodeValueType nodeValueType,
StartExpressionSeparator startExprSep, EndExpressionSeparator endExprSep, List<Replacement> lstReplacements)
{
string retVal = null;
foreach (string xpath in xpaths)
{
retVal = GetNodeValue(xpath, nodeValueType, startExprSep, endExprSep, lstReplacements);
if (retVal != null)
break;
}
return retVal;
}
public string GetNodeValue(string xpath, NodeValueType nodeValueType,
StartExpressionSeparator startExprSep, EndExpressionSeparator endExprSep, List<Replacement> lstReplacements)
{
string retVal = null;
HtmlNode node = null;
xpath = xpath.Trim();
if (xpath == ".")
{
node = _anchorLstNodeColl[_anchorLstCurrIndex];
}
else
{
if (xpath.StartsWith("..")) // znaci da ide prema parentu po neki xpath axis (npr ../following-sibling ili ../preceding-sibling)
{
if (_anchorLstNodeColl == null)
{
return null;
}
xpath = _anchorLstNodeColl[_anchorLstCurrIndex].XPath + "/" + xpath; // u tom slucaju treba nadograditi postojeci
}
node = _htmlDoc.DocumentNode.SelectSingleNode(xpath);
// WORKAROUND za slcaj da uleti tbody kojeg obicno nema, ali ga recimo firefox voli dodavati
if (node == null && (xpath.Contains("/tbody[1]") || xpath.Contains("/tbody")))
{
xpath = xpath.Replace("/tbody[1]", string.Empty);
xpath = xpath.Replace("/tbody", string.Empty);
node = _htmlDoc.DocumentNode.SelectSingleNode(xpath);
}
}
if (node != null)
{
switch (nodeValueType)
{
case NodeValueType.InnerText:
retVal = node.InnerText;
break;
case NodeValueType.InnerHtml:
retVal = node.InnerHtml;
break;
case NodeValueType.OuterHtml:
retVal = node.OuterHtml;
break;
}
// 1. PROCESUIRANJE StartExpressionSeparatora i EndExpressionSeparatora
if (startExprSep != null)
{
if (!startExprSep.ValidateSeparator(retVal))
return null;
retVal = startExprSep.ProcessValue(retVal);
}
if (endExprSep != null)
{
if (!endExprSep.ValidateSeparator(retVal))
return null;
retVal = endExprSep.ProcessValue(retVal);
}
// 2. CISCENJE POVRATNE VRIJEDNOSTI
// dekodira web znakove kao sto su '<' i '>', brise visestruko pojavljivanje novih redaka, pretvara tabove u space i brise spaceove ili navodnike sa pocetka i kraja
retVal = HttpUtility.HtmlDecode(retVal);
retVal = retVal.Replace("\r\n", "\n");
retVal = retVal.Replace("\\r\\n", "\n");
retVal = retVal.Replace("\\n", "\n");
while (retVal.Contains("\n\n"))
{
retVal = retVal.Replace("\n\n", "\n");
}
retVal = retVal.Replace("\t", " ");
retVal = retVal.Replace("\\t", " ");
retVal = retVal.Trim();
retVal = retVal.Trim('"');
retVal = retVal.Trim('\'');
retVal = retVal.Trim();
// 3. PROVODENJE REPLACEMENTA
if(lstReplacements != null)
{
foreach (Replacement rep in lstReplacements)
{
retVal = rep.Replace(retVal);
}
}
}
return retVal;
}
public ActionResult Edit(NodeValueType model)
{
Core.FormManager.SaveNodeValueType(model);
return(JsonSuccessResult());
}
public static bool IsIntegralNodeValueType(NodeValueType nodeValueType)
{
Debug.Assert(Enum.IsDefined(typeof(NodeValueType), nodeValueType));
return((nodeValueType >= NodeValueType.Byte) && (nodeValueType <= NodeValueType.Int64));
}
public static bool IsNumericalNodeValueType(NodeValueType nodeValueType)
{
Debug.Assert(Enum.IsDefined(typeof(NodeValueType), nodeValueType));
return(nodeValueType >= NodeValueType.Byte);
}
