/// <summary>
/// CTOR that creates a "Value" type argument from a given Expression Value
/// </summary>
/// <param name = "expVal">the source expression value</param>
protected internal Argument(GuiExpressionEvaluator.ExpVal expVal)
{
_type = ConstInterface.ARG_TYPE_VALUE;
_fld = null;
_exp = null;
_skip = false;
if (expVal.IsNull)
{
_val = null;
}
else
{
_val = expVal.ToMgVal();
if (expVal.Attr == StorageAttribute.DOTNET &&
(String.IsNullOrEmpty(_val) || !BlobType.isValidDotNetBlob(_val)))
{
_dnObjectCollectionKey = DNManager.getInstance().DNObjectsCollection.CreateEntry(null);
_val = BlobType.createDotNetBlobPrefix(_dnObjectCollectionKey);
if (expVal.DnMemberInfo != null)
{
DNManager.getInstance().DNObjectsCollection.Update(_dnObjectCollectionKey,
expVal.DnMemberInfo.value);
}
// add this key into 'tempDNObjectsCollectionKeys', so that it can be freed later.
ClientManager.Instance.getTempDNObjectCollectionKeys().Add(_dnObjectCollectionKey);
}
}
_valueIsNull = (_val == null);
_valueAttr = expVal.Attr;
}
/// <summary></summary>
/// <param name="dnMemberInfo"></param>
/// <returns></returns>
public static Type GetType(DNMemberInfo dnMemberInfo)
{
Type type = null;
if (dnMemberInfo == null)
{
return(null);
}
if (dnMemberInfo.memberInfo != null)
{
type = GetType(dnMemberInfo.memberInfo);
}
else
{
if (dnMemberInfo.indexes != null && dnMemberInfo.parent != null) // for array elem
{
type = dnMemberInfo.parent.value.GetType().GetElementType();
}
else if (dnMemberInfo.dnObjectCollectionIsn != -1)
{
type = DNManager.getInstance().DNObjectsCollection.GetDNType(dnMemberInfo.dnObjectCollectionIsn);
}
else if (dnMemberInfo.value != null)
{
type = dnMemberInfo.value.GetType();
}
}
return(type);
}
/// <summary>this is an entry point for all objects handlers</summary>
/// <param name="objectHashCode"> hash code of the object</param>
/// <param name="eventName"> event name</param>
/// <param name="parameters">event parameters</param>
/// <returns></returns>
public static void handleDotNetEvent(int objectHashCode, String eventName, Object[] parameters)
{
Object invokedObject = DNManager.getInstance().DNObjectEventsCollection.getObject(objectHashCode);
GuiMgControl mgControl = null;
bool raiseRuntimeEvent = true;
Manager.ContextIDGuard contextIDGuard = null;
// If Object is a control and it is 'our' control (not created dynamically, decided by .Tag)
if (invokedObject is Control && ((Control)invokedObject).Tag != null)
{
ControlsMap controlsMap = ControlsMap.getInstance();
MapData mapData = controlsMap.getControlMapData((Control)invokedObject);
if (mapData == null)
{
return;
}
mgControl = mapData.getControl();
contextIDGuard = new Manager.ContextIDGuard(Manager.GetContextID(mgControl));
//first execute default magic handling of event
EventType type = DNControlEvents.getStandardEvent(eventName);
if (type != EventType.NONE && parameters.Length == 2)
{
DefaultHandler.getInstance().handleEvent(type, invokedObject, (EventArgs)parameters[1]);
}
if (eventName == "KeyDown") //QCR #736734 KeyDown is handled from Filter.cs on WM_KEYDOWN - do not duplicate the event
{
raiseRuntimeEvent = false;
}
else if (eventName == "Disposed")
{
// a Disposed event for a control can't be handled as a runtime-event after the task/form are closed
raiseRuntimeEvent = false;
}
else
{
// raise .NET runtime event only if hooked from the application (i.e. have a handler in the task)
List <String> applicationHookedDNeventsNames = ((TagData)((Control)invokedObject).Tag).ApplicationHookedDNeventsNames;
if (applicationHookedDNeventsNames == null || !applicationHookedDNeventsNames.Contains(eventName))
{
raiseRuntimeEvent = false;
}
}
}
// raise .NET event
if (raiseRuntimeEvent)
{
Events.OnDotNetEvent(invokedObject, mgControl, eventName, parameters);
}
if (contextIDGuard != null)
{
contextIDGuard.Dispose();
}
}
/// <summary>
/// remove DNObjectsCollection entries made by dot net parameters for the event
/// </summary>
internal void removeDotNetArgs()
{
// free the object table entry
for (int i = 0; i < _argList.getSize(); i++)
{
string val = _argList.getArg(i).getValue(StorageAttribute.DOTNET, 0);
DNManager.getInstance().DNObjectsCollection.Remove(BlobType.getKey(val));
}
}
/// <summary> Add the ValueChangedHandler. </summary>
/// <param name="control"></param>
internal static void AddDNControlValueChangedHandler(Control control)
{
Debug.Assert(Misc.IsGuiThread());
DNObjectEventsCollection.ObjectEvents objectEvents = DNManager.getInstance().DNObjectEventsCollection.getObjectEvents(control);
Debug.Assert(objectEvents != null);
if (!String.IsNullOrEmpty(objectEvents.DNControlValueChangedEventName))
{
AddDNControlValueChangedHandler(control, objectEvents.DNControlValueChangedEventName);
}
}
/// <summary>
/// update the result into expression DNObjectsCollection Entry and modifies Expval to contain the blob prefix
/// </summary>
/// <param name = "expVal"></param>
private void ConvertExpValForDotNet(ExpressionEvaluator.ExpVal expVal)
{
if (expVal.Attr == StorageAttribute.DOTNET)
{
// update the value at DNObjectsCollection Key. This is updated into Expression DNObjectsCollection key, so no need to Cast.
DNManager.getInstance().DNObjectsCollection.Update(_dnObjectCollectionKey, expVal.DnMemberInfo.value);
bool isNull = (expVal.DnMemberInfo.value == null);
expVal.Nullify();
expVal.Init(StorageAttribute.DOTNET, isNull, BlobType.createDotNetBlobPrefix(_dnObjectCollectionKey));
}
}
/// <summary>
/// parse the expression XML tag
/// </summary>
/// <param name = "tokensVector">the vector of attributes and their values
/// </param>
// TODO: NEW JDK - tokensVector - use ArrayList instead of Vector
private void initElements(List <String> tokensVector)
{
String expStr;
String attribute, valueStr;
for (int j = 0;
j < tokensVector.Count;
j += 2)
{
attribute = (tokensVector[j]);
valueStr = (tokensVector[j + 1]);
switch (attribute)
{
case XMLConstants.MG_ATTR_VALUE:
//if we work in hex
if (ClientManager.Instance.getEnvironment().GetDebugLevel() > 1)
{
expStr = valueStr;
buildByteArray(expStr);
}
else
{
_expBytes = Misc.ToSByteArray(Base64.decodeToByte(valueStr));
}
break;
case XMLConstants.MG_ATTR_ID:
_id = XmlParser.getInt(valueStr);
break;
case ConstInterface.MG_ATTR_COMPUTE_BY:
_computeBy = valueStr[0];
break;
default:
Logger.Instance.WriteExceptionToLog(
"There is no such tag in Expression.initElements class. Insert case to Expression.initElements for " +
attribute);
break;
}
}
if (!computedByClient())
{
_cmdsToServer = _task.getMGData().CmdsToServer;
}
// add an entry into DNObjectsCollection and store the key reference in �DNObjectsCollectionKey�E
_dnObjectCollectionKey = DNManager.getInstance().DNObjectsCollection.CreateEntry(null);
}
/// <summary>
/// This will be invoked on Column value change.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void ColumnChangedHandler(object sender, DataColumnChangeEventArgs e)
{
//Save updated value ( e.ProposedValue) in DNObjectsCollection
DNObjectsCollection dnObjectsCollection = DNManager.getInstance().DNObjectsCollection;
Type type = (e.ProposedValue != null) ? e.ProposedValue.GetType() : typeof(DBNull);
int dnKey = dnObjectsCollection.CreateEntry(type);
dnObjectsCollection.Update(dnKey, e.ProposedValue);
//invoke event which will update variable at core and will cause recompute & variable change handler
int columnID = e.Column.Ordinal;
Events.OnDVControlColumnValueChangedEvent(sender, columnID, dnKey);
}
/// <summary>
/// This function handles DN control value changed event.
/// </summary>
/// <param name="objectHashCode">object hash code.</param>
public static void HandleDNControlValueChanged(int objectHashCode)
{
Object invokedObject = DNManager.getInstance().DNObjectEventsCollection.getObject(objectHashCode);
// Get the gui control from the control's map.
if (invokedObject is Control && ((Control)invokedObject).Tag != null)
{
ControlsMap controlsMap = ControlsMap.getInstance();
MapData mapData = controlsMap.getControlMapData((Control)invokedObject);
if (mapData != null)
{
//Raise the event.
Events.OnDNControlValueChanged(mapData.getControl(), mapData.getIdx());
}
}
}
/// <summary>
/// set dot net parameters as arguments for the event
/// </summary>
/// <param name = "parameters"></param>
internal void setDotNetArgs(object[] parameters)
{
ExpressionEvaluator.ExpVal[] argsList = new ExpressionEvaluator.ExpVal[parameters.Length];
for (int i = 0; i < parameters.Length; i++)
{
int key = DNManager.getInstance().DNObjectsCollection.CreateEntry(null);
String blobString = BlobType.createDotNetBlobPrefix(key);
DNManager.getInstance().DNObjectsCollection.Update(key, parameters[i]);
argsList[i] = new ExpressionEvaluator.ExpVal(StorageAttribute.DOTNET,
parameters[i] == null, blobString);
}
//create the string for the blob
ArgumentsList args = new ArgumentsList(argsList);
setArgList(args);
}
/// <summary> adds events for control</summary>
/// <param name="control"></param>
/// <param name="dnEventsNames">comma-delimited string of events that should be raised for the object</param>
internal void addHandler(Control control, List <String> dnEventsNames)
{
DNObjectEventsCollection.ObjectEvents objectEvents = DNManager.getInstance().DNObjectEventsCollection.checkAndCreateObjectEvents(control);
foreach (string item in dnEventsNames)
{
ReflectionServices.addHandler(item, control, objectEvents, true);
}
ICollection <String> standartEvents = DNControlEvents.getStandardEventsNames();
foreach (string item in standartEvents)
{
if (!dnEventsNames.Contains(item))
{
ReflectionServices.addHandler(item, control, objectEvents, false);
}
}
}
/// <summary>
/// serialize an item (field/global param/...) to an XML format (applicable to be passed to the server).
/// </summary>
/// <param name = "itemVal">item's value</param>
/// <param name = "itemAttr">item's attribute</param>
/// <param name = "cellAttr">cell's attribute - relevant only if 'itemAttr' is vector</param>
/// <param name = "toBase64">decide Base64 encoding is to be done</param>
/// <returns>serialized buffer</returns>
public static String serializeItemVal(String itemVal, StorageAttribute itemAttr, StorageAttribute cellAttr, bool toBase64)
{
Debug.Assert(itemVal != null);
int significantNumSize = Manager.Environment.GetSignificantNumSize() * 2;
String valueSize;
int j;
var tmpBuf = new StringBuilder();
// for alpha type add the length of the value as hex number of 4 digits
switch (itemAttr)
{
case StorageAttribute.NUMERIC:
case StorageAttribute.DATE:
case StorageAttribute.TIME:
itemVal = !toBase64
? itemVal.Substring(0, significantNumSize)
: Base64.encode(byteStreamToString(itemVal.Substring(0, significantNumSize)), Manager.Environment.GetEncoding());
break;
case StorageAttribute.ALPHA:
case StorageAttribute.UNICODE:
itemVal = StrUtil.rtrim(itemVal);
int pos = 0;
int fldValLen = itemVal.Length;
do
{
int nullChrPos = itemVal.IndexOf((Char)0, pos);
if (nullChrPos == -1)
{
valueSize = (Convert.ToString(fldValLen - pos, 16)).ToUpper();
// add leading zeros (if needed)
for (j = 0; j < 4 - valueSize.Length; j++)
{
tmpBuf.Append('0');
}
tmpBuf.Append(valueSize);
if (pos > 0)
{
itemVal = itemVal.Substring(pos, (fldValLen) - (pos));
}
pos = fldValLen;
}
else
{
// If NULL chars exist in the middle of the value - create a spanned record
// Turn on the high most bit in the length (to indicate a segment)
valueSize = (Convert.ToString(nullChrPos - pos + 0x8000, 16)).ToUpper();
tmpBuf.Append(valueSize);
tmpBuf.Append(itemVal.Substring(pos, (nullChrPos) - (pos)));
// Count number of consecutive NULL chars, and add their count to XML
for (j = 1; j < fldValLen - nullChrPos && itemVal[nullChrPos + j] == 0; j++)
{
}
// add leading zeros (if needed)
valueSize = "0000" + (Convert.ToString(j, 16)).ToUpper();
tmpBuf.Append(valueSize.Substring(valueSize.Length - 4));
// Append a hex dump of special chars
for (pos = nullChrPos; j > 0; j--, pos++)
{
string tmpStr = "0" + (Convert.ToString(itemVal[nullChrPos], 16));
tmpBuf.Append(tmpStr.Substring(tmpStr.Length - 2));
}
// If special chars were last, add the length of the last segment (zero)
if (pos >= fldValLen)
{
tmpBuf.Append("0000");
itemVal = "";
break;
}
}
} while (pos < fldValLen);
break;
case StorageAttribute.BLOB:
case StorageAttribute.BLOB_VECTOR:
case StorageAttribute.DOTNET:
pos = 0;
// convert dotnet object into magic equivalent and append as data into blob suffix.
if (itemAttr == StorageAttribute.DOTNET)
{
Object itmObj = null;
int key = BlobType.getKey(itemVal);
String itmMagicVal = "";
if (key != 0)
{
itmObj = DNManager.getInstance().DNObjectsCollection.GetDNObj(key);
}
// convert dotnet object into magic type
if (itmObj != null)
{
StorageAttribute magicType = DNConvert.getDefaultMagicTypeForDotNetType(itmObj.GetType());
itmMagicVal = DNConvert.convertDotNetToMagic(itmObj, magicType);
// append to dotnet blob as data
if (itmMagicVal.Length > 0)
{
itemVal = BlobType.addDataToDotNetBlob(itemVal, itmMagicVal, magicType);
}
}
}
fldValLen = itemVal.Length;
if (UtilStrByteMode.isLocaleDefLangDBCS() && itemAttr == StorageAttribute.BLOB_VECTOR)
{
if (cellAttr == StorageAttribute.ALPHA || cellAttr == StorageAttribute.MEMO)
{
itemVal = VectorType.adjustAlphaStringsInFlatData(itemVal);
// The flat data will be divided by 0x3FFF characters.
// Each segment will be size in 0x3FFF ~ 0x7FFF bytes.
// The size depends on the number of DBCS characters, not fixed in 0x7FFF.
do
{
if (itemVal.Length < pos + 0x3FFF)
//(0x8000 - 1) / 2 = 0x3FFF
{
if (pos > 0)
{
itemVal = itemVal.Substring(pos);
}
valueSize = (Convert.ToString(UtilStrByteMode.lenB(itemVal), 16)).ToUpper();
// add leading zeros (if needed)
for (j = 0; j < 4 - valueSize.Length; j++)
{
tmpBuf.Append('0');
}
tmpBuf.Append(valueSize);
//hex encoding
itemVal = !toBase64
? StrUtil.stringToHexaDump(itemVal, 4)
: Base64.encode(itemVal, true, Manager.Environment.GetEncoding());
pos = fldValLen;
}
else
{
String strSub = itemVal.Substring(pos, 0x3FFF);
// + 0x8000 ... to indicate not the last segment
valueSize = (Convert.ToString(UtilStrByteMode.lenB(strSub) + 0x8000, 16)).ToUpper();
tmpBuf.Append(valueSize);
//hex or base64 encoding
tmpBuf.Append(!toBase64
? StrUtil.stringToHexaDump(strSub, 4)
: Base64.encode(strSub, true, Manager.Environment.GetEncoding()));
tmpBuf.Append("0000");
pos += 0x3FFF;
}
} while (pos < fldValLen);
break;
}
}
do
{
if (fldValLen < pos + 0x7FFF)
//0x8000 -1 = 0x7FFF
{
valueSize = (Convert.ToString(fldValLen - pos, 16)).ToUpper();
// add leading zeros (if needed)
for (j = 0; j < 4 - valueSize.Length; j++)
{
tmpBuf.Append('0');
}
tmpBuf.Append(valueSize);
if (pos > 0)
{
itemVal = itemVal.Substring(pos, (fldValLen) - (pos));
}
//hex encoding
itemVal = !toBase64
? StrUtil.stringToHexaDump(itemVal, 4)
: Base64.encode(itemVal, Manager.Environment.GetEncoding());
pos = fldValLen;
}
else
{
//to indicate the full segment
valueSize = "FFFF"; //(Integer.toHexString (0xFFFF)).toUpperCase()
tmpBuf.Append(valueSize);
//hex or base64 encoding
if (!toBase64)
{
tmpBuf.Append(StrUtil.stringToHexaDump(itemVal.Substring(pos, 0x7FFF), 4));
}
else
{
tmpBuf.Append(Base64.encode(itemVal.Substring(pos, 0x7FFF), Manager.Environment.GetEncoding()));
}
tmpBuf.Append("0000");
pos += 0x7FFF;
}
} while (pos < fldValLen);
break;
} //end of the type case block
tmpBuf.Append(itemVal);
return(tmpBuf.ToString());
}
/// <summary>
//This function registers "HandleDNControlValueChanged" to the event
//specified by the user for DN control property change.
/// </summary>
/// <param name="eventName">Event to be registered</param>
/// <param name="obj">object on which, event will be registered</param>
internal static void AddDNControlValueChangedHandler(object objectToHook, String eventName)
{
Control ctrl = (Control)objectToHook;
DNObjectEventsCollection.ObjectEvents objectEvents = DNManager.getInstance().DNObjectEventsCollection.checkAndCreateObjectEvents(ctrl);
//DNControlValueChangedDelegate and DNControlValueChangedEventName should be initialized only once. If initialized second time, assert.
//Debug.Assert(objectEvents.DNControlValueChangedDelegate == null && objectEvents.DNControlValueChangedEventName == null);
Type type = ctrl.GetType();
//Get an EventInfo representing the event, and get the type of delegate that handles the event.
EventInfo eventInfo = type.GetEvent(eventName);
if (eventInfo != null)
{
// Get the "add" accessor of the event and invoke it late-bound, passing in the delegate instance.
// This is equivalent to using the += operator in C#, or AddHandler in Visual Basic.
// The instance on which the "add" accessor is invoked is the form;
// the arguments must be passed as an array.
MethodInfo addHandler = eventInfo.GetAddMethod();
Delegate eventHandler = null;
try
{
if (objectEvents.DNControlValueChangedDelegate != null)
{
Debug.Assert(objectEvents.DNControlValueChangedEventName == eventName);
eventHandler = objectEvents.DNControlValueChangedDelegate;
}
else
{
eventHandler = createDynamicDelegateForDNCtrlValueChangedEvent(ctrl.GetHashCode(), eventInfo);
//Add delegate(event handler) to object events.
objectEvents.DNControlValueChangedDelegate = eventHandler;
//Add event name to object events.
objectEvents.DNControlValueChangedEventName = eventName;
}
try
{
addHandler.Invoke(objectToHook, new Object[] { eventHandler });
}
catch (Exception e)
{
if (e is TargetInvocationException && e.InnerException != null)
{
throw e.InnerException;
}
else
{
throw e;
}
}
}
catch (Exception exception)
{
DNException dnException = Manager.GetCurrentRuntimeContext().DNException;
dnException.set(exception);
}
}
else
{
Events.WriteExceptionToLog(String.Format("Event type \"{0}\" not supported", eventName));
}
}
/// <summary>
/// converts Alpha/Unicode values to Blob and vice versa.
/// </summary>
/// <param name="value"></param>
/// <param name="srcAttr"></param>
/// <param name="expectedType"></param>
/// <returns></returns>
internal static String convertArgs(String value, StorageAttribute srcAttr, StorageAttribute expectedType)
{
int key;
object dotNetObj = null;
bool invalidArg = false;
if (srcAttr != StorageAttribute.DOTNET &&
expectedType == StorageAttribute.DOTNET)
{
//Convert Magic To DotNet
key = _tempTableKey;
dotNetObj = DNConvert.convertMagicToDotNet(value, srcAttr,
DNConvert.getDefaultDotNetTypeForMagicType(value, srcAttr));
DNManager.getInstance().DNObjectsCollection.Update(key, dotNetObj);
value = BlobType.createDotNetBlobPrefix(key);
}
else if (srcAttr == StorageAttribute.DOTNET &&
expectedType != StorageAttribute.DOTNET &&
expectedType != StorageAttribute.NONE)
{
//Convert DotNet to Magic
key = BlobType.getKey(value);
if (key != 0)
{
dotNetObj = DNManager.getInstance().DNObjectsCollection.GetDNObj(key);
value = DNConvert.convertDotNetToMagic(dotNetObj, expectedType);
}
}
else
{
switch (expectedType)
{
case StorageAttribute.ALPHA:
case StorageAttribute.UNICODE:
if (srcAttr == StorageAttribute.BLOB)
{
if (BlobType.isValidBlob(value))
{
value = BlobType.getString(value);
}
}
else if (!StorageAttributeCheck.IsTypeAlphaOrUnicode(srcAttr))
{
invalidArg = true;
}
break;
case StorageAttribute.NUMERIC:
case StorageAttribute.DATE:
case StorageAttribute.TIME:
if (!StorageAttributeCheck.isTypeNumeric(srcAttr))
{
invalidArg = true;
}
break;
case StorageAttribute.BLOB:
if (StorageAttributeCheck.IsTypeAlphaOrUnicode(srcAttr))
{
char contentType = srcAttr == StorageAttribute.ALPHA
? BlobType.CONTENT_TYPE_ANSI
: BlobType.CONTENT_TYPE_UNICODE;
value = BlobType.createFromString(value, contentType);
}
else if (!StorageAttributeCheck.isTypeBlob(srcAttr))
{
invalidArg = true;
}
break;
}
//If there is mismatch in attribute, take default value of expectd argument.
if (invalidArg)
{
value = FieldDef.getMagicDefaultValue(expectedType);
}
}
return(value);
}