/// <summary>
/// Converts the instances returned by a query in XML format in order to put it in XML message response
/// </summary>
/// <param name="agentOid">OID with the agent connected to the system</param>
/// <param name="xmlWriter">This parameter has the response message XML</param>
/// <param name="val">Instances that fullfils with the query request</param>
/// <param name="startRowOID">OID necessary to start the search</param>
/// <param name="blockSize">Represents the number of instances to be returned</param>
/// <param name="displaySet">Attributes to be returned in the response</param>
/// <param name="dtdVersion">Version of DTD that follows the XML message</param>
public override void ONQuery2XML(ONOid agentOid, XmlWriter xmlWriter, ONCollection val, ONOid startRowOID, int blockSize, ONDisplaySet displaySet, double dtdVersion)
{
xmlWriter.WriteStartElement("Head");
xmlWriter.WriteStartElement("Head.OID");
xmlWriter.WriteAttributeString("Class", "Pasajero");
xmlWriter.WriteStartElement("Head.OID.Field");
xmlWriter.WriteAttributeString("Name", "id_Pasajero");
xmlWriter.WriteAttributeString("Type", "autonumeric");
xmlWriter.WriteEndElement(); // Head.OID.Field
xmlWriter.WriteEndElement(); // Head.OID
xmlWriter.WriteStartElement("Head.Cols");
foreach (ONDisplaySetItem lDisplaySetItem in displaySet)
{
xmlWriter.WriteStartElement("Head.Col");
xmlWriter.WriteAttributeString("Name", lDisplaySetItem.Path);
string lType = ONInstance.GetTypeOfAttribute(typeof(PasajeroInstance), new ONPath(lDisplaySetItem.Path));
if (lType == "")
{
lType = "string";
}
xmlWriter.WriteAttributeString("Type", lType);
xmlWriter.WriteEndElement(); // Head.Col
}
xmlWriter.WriteEndElement(); // Head.Cols
xmlWriter.WriteEndElement(); // Head
// Search StartRow
int i = 0;
if (startRowOID != null)
{
i = val.IndexOf(startRowOID) + 1;
}
// Instance count
int lInstances = 0;
int lNumInstances = 0;
string lLastBlock = "True";
if (i >= 0)
{
lNumInstances = val.Count - i;
if ((blockSize > 0) && (lNumInstances > blockSize))
{
lNumInstances = blockSize;
lLastBlock = "False";
}
}
xmlWriter.WriteStartElement("Data");
xmlWriter.WriteAttributeString("Rows", lNumInstances.ToString());
xmlWriter.WriteAttributeString("LastBlock", lLastBlock);
xmlWriter.WriteAttributeString("TotalRows", val.totalNumInstances.ToString());
while ((lInstances++ < lNumInstances) && (i < val.Count))
{
PasajeroInstance lInstance = val[i++] as PasajeroInstance;
xmlWriter.WriteStartElement("R");
ONXmlAutonumeric.ON2XML(xmlWriter, lInstance.Oid.Id_PasajeroAttr, dtdVersion, ONXml.XMLTAG_O);
foreach (ONDisplaySetItem lDisplaySetItem in displaySet)
{
if (lDisplaySetItem.Visibility == VisibilityState.NotChecked)
{
if (ONInstance.IsVisible(lInstance.GetType(), lDisplaySetItem.Path, lInstance.OnContext))
{
lDisplaySetItem.Visibility = VisibilityState.Visible;
}
else
{
lDisplaySetItem.Visibility = VisibilityState.NotVisible;
}
}
if (lDisplaySetItem.Visibility == VisibilityState.NotVisible) // No Visibility
{
xmlWriter.WriteElementString("V", null);
}
else
{
ONSimpleType lAttribute;
if (lDisplaySetItem.HasHV)
{
lAttribute = lInstance.DisplaysetItemValue(lDisplaySetItem.Path);
}
else
{
lAttribute = lInstance[lDisplaySetItem.Path] as ONSimpleType;
}
if (lAttribute is ONInt)
{
ONXmlInt.ON2XML(xmlWriter, lAttribute as ONInt, dtdVersion, ONXml.XMLTAG_V);
}
else if (lAttribute is ONString)
{
ONXmlString.ON2XML(xmlWriter, lAttribute as ONString, dtdVersion, ONXml.XMLTAG_V);
}
else if (lAttribute is ONBlob)
{
ONXmlBlob.ON2XML(xmlWriter, lAttribute as ONBlob, dtdVersion, ONXml.XMLTAG_V);
}
else if (lAttribute is ONBool)
{
ONXmlBool.ON2XML(xmlWriter, lAttribute as ONBool, dtdVersion, ONXml.XMLTAG_V);
}
else if (lAttribute is ONReal)
{
ONXmlReal.ON2XML(xmlWriter, lAttribute as ONReal, dtdVersion, ONXml.XMLTAG_V);
}
else if (lAttribute is ONInt)
{
ONXmlAutonumeric.ON2XML(xmlWriter, lAttribute as ONInt, dtdVersion, ONXml.XMLTAG_V);
}
else if (lAttribute is ONDate)
{
ONXmlDate.ON2XML(xmlWriter, lAttribute as ONDate, dtdVersion, ONXml.XMLTAG_V);
}
else if (lAttribute is ONDateTime)
{
ONXmlDateTime.ON2XML(xmlWriter, lAttribute as ONDateTime, dtdVersion, ONXml.XMLTAG_V);
}
else if (lAttribute is ONTime)
{
ONXmlTime.ON2XML(xmlWriter, lAttribute as ONTime, dtdVersion, ONXml.XMLTAG_V);
}
else if (lAttribute is ONNat)
{
ONXmlNat.ON2XML(xmlWriter, lAttribute as ONNat, dtdVersion, ONXml.XMLTAG_V);
}
else if (lAttribute is ONText)
{
ONXmlText.ON2XML(xmlWriter, lAttribute as ONText, dtdVersion, ONXml.XMLTAG_V);
}
else if (lAttribute is ONString)
{
ONXmlPassword.ON2XML(xmlWriter, lAttribute as ONString, dtdVersion, ONXml.XMLTAG_V);
}
}
}
xmlWriter.WriteEndElement(); // R
}
xmlWriter.WriteEndElement(); // Data
}
/// <summary>
/// Retrieve all the instances of a determinate class that fulfil a determinate formula of searching
/// </summary>
/// <param name="linkedTo">List to reach the class to retrieve the related instance</param>
/// <param name="filters">Formula to search concrete instances</param>
/// <param name="comparer">Order Criteria that must be followed by the query</param>
/// <param name="startRowOID">OID frontier</param>
/// <param name="blockSize">Number of instances to be returned</param>
public override ONCollection ExecuteQuery(ONLinkedToList linkedTo, ONFilterList filters, ONDisplaySet displaySet, ONOrderCriteria comparer, ONOid startRowOid, int blockSize)
{
try
{
ONCollection lInstances = null;
Type lTypeInstance = ONContext.GetType_Instance(ClassName);
Type lTypeQuery = ONContext.GetType_Query(ClassName);
// Initialize the list of related queries
if (linkedTo == null)
{
linkedTo = new ONLinkedToList();
}
// Initialize the filter list
if (filters == null)
{
filters = new ONFilterList();
}
ONLinkedToList lLinkedToLegacy = new ONLinkedToList();
ONLinkedToList lLinkedToLocal = new ONLinkedToList();
ONLinkedToList lLinkedToMixed = new ONLinkedToList();
#region Treatment of LinkedTo
foreach (KeyValuePair <ONPath, ONOid> lDictionaryEntry in linkedTo)
{
ONPath lPath = lDictionaryEntry.Key as ONPath;
ONOid lOid = lDictionaryEntry.Value as ONOid;
ONPath lInversePath = new ONPath(ONInstance.InversePath(lTypeInstance, lPath));
Type lTypeTargetClassInstance = ONContext.GetType_Instance(ONInstance.GetTargetClass(OnContext, lTypeInstance, lPath));
if ((lInversePath.Count == 0) || (!ONInstance.IsVisible(lTypeTargetClassInstance, lInversePath, OnContext)))
{
return(ONContext.GetComponent_Collection(ClassName, OnContext));
}
bool lexistLV = false;
ONData lData = ONContext.GetComponent_Data(InhGetTargetClassName(lPath), OnContext);
if (lData.GetType().BaseType == typeof(ONLVData))
{
if (!lOid.Exist(OnContext, null))
{
return(ONContext.GetComponent_Collection(ClassName, OnContext));
}
}
foreach (string lRole in lInversePath.Roles)
{
lData = ONContext.GetComponent_Data(lData.InhGetTargetClassName(new ONPath(lRole)), OnContext);
if (lData.GetType().BaseType == typeof(ONLVData))
{
lexistLV = true;
}
}
if (!lexistLV)
{
lLinkedToLocal.mLinkedToList.Add(lPath, lOid);
}
else
{
lLinkedToMixed.mLinkedToList.Add(lPath, lOid);
}
}
#endregion
#region displaySet
if (!filters.PreloadRelatedAttributes)
{
displaySet = null;
}
#endregion displaySet
#region No link item
if ((linkedTo.mLinkedToList.Count == 0) || (lLinkedToMixed.mLinkedToList.Count > 0))
{
if ((GetType().BaseType != typeof(ONLVData)) || (filters.InData))
{
lInstances = SolveQuery(new ONLinkedToList(), filters, displaySet, comparer, startRowOid, blockSize);
}
}
#endregion
#region Local Link
if (lLinkedToLocal.mLinkedToList.Count > 0)
{
ONCollection lInstancesAux = SolveQuery(lLinkedToLocal, filters, displaySet, comparer, startRowOid, blockSize);
if (lInstances != null)
{
lInstances.Intersection(lInstancesAux);
}
else
{
lInstances = lInstancesAux;
}
}
#endregion
#region Hybrid Link
if (lLinkedToMixed.mLinkedToList.Count > 0)
{
ONCollection lInstancesAux = null;
foreach (KeyValuePair <ONPath, ONOid> lDictionaryEntry in lLinkedToMixed)
{
ONPath lPath = lDictionaryEntry.Key as ONPath;
ONOid lOid = lDictionaryEntry.Value as ONOid;
if (lPath.Roles.Count == 1)
{
ONLinkedToList lLinked = new ONLinkedToList();
lLinked[lPath] = lOid;
ONCollection lInstanceColl = SolveQuery(lLinked, filters, displaySet, comparer, startRowOid, blockSize);
if (lInstances != null)
{
lInstances.Intersection(lInstanceColl);
}
else
{
lInstances = lInstanceColl;
}
continue;
}
#region Optimized Path
ONLinkedToList linkedToOptimized = new ONLinkedToList();
ONPath lInversePath = new ONPath(ONInstance.InversePath(lTypeInstance, lPath));
ONPath lOptimizedRole = new ONPath(lInversePath.RemoveHead() as string);
Type lTypeInstanceDestiny = ONContext.GetType_Instance(InhGetTargetClassName(lPath));
bool lBeginIsLegacy = (ONInstance.IsLegacy(lTypeInstanceDestiny, lOptimizedRole));
bool lEnterLoop = true;
ONData lData = ONContext.GetComponent_Data(InhGetTargetClassName(lPath), OnContext);
if (lData.GetType().BaseType != typeof(ONLVData))
{
if (ONContext.GetType_Data(lData.InhGetTargetClassName(lOptimizedRole)).BaseType == typeof(ONLVData))
{
lEnterLoop = false;
}
}
lPath.RemoveTail();
if (lEnterLoop)
{
while (lInversePath.Roles.Count > 0)
{
lData = ONContext.GetComponent_Data(InhGetTargetClassName(lPath), OnContext);
if ((!lBeginIsLegacy) && (ONContext.GetType_Data(lData.InhGetTargetClassName(new ONPath(lInversePath.Roles[0]))).BaseType == typeof(ONLVData)))
{
break;
}
if ((lBeginIsLegacy) && (ONContext.GetType_Data(lData.InhGetTargetClassName(new ONPath(lInversePath.Roles[0]))).BaseType != typeof(ONLVData)))
{
break;
}
lOptimizedRole.Roles.Add(lInversePath.RemoveHead());
lPath.RemoveTail();
}
}
linkedToOptimized[ONInstance.InversePath(lTypeInstanceDestiny, lOptimizedRole)] = lOid;
if ((lPath.Count > 0) || (lBeginIsLegacy))
{
// It is not the last role or it is leged
lInstancesAux = ONContext.GetComponent_Data(InhGetTargetClassName(lPath), OnContext).ExecuteQuery(linkedToOptimized, null, null, comparer, startRowOid, blockSize);
}
else
{
// It is the last role and it is local
lInstancesAux = ONContext.GetComponent_Data(InhGetTargetClassName(lPath), OnContext).ExecuteQuery(linkedToOptimized, null, displaySet, comparer, startRowOid, blockSize);
}
#endregion
#region Rest of the path
lInstancesAux = lInstancesAux[lInversePath] as ONCollection;
#endregion
if (lInstances != null)
{
lInstances.Intersection(lInstancesAux);
}
else
{
lInstances = lInstancesAux;
}
}
}
#endregion
return(lInstances);
}
catch (Exception e)
{
string ltraceItem = "Method: SolveQuery, Component: ONDBData";
if (e is ONSystemException)
{
ONSystemException lException = e as ONSystemException;
lException.addTraceInformation(ltraceItem);
throw lException;
}
throw new ONSystemException(e, ltraceItem);
}
}
