private string GetFunctions(FunctionDefinitionCollection functionDefinitionCollection)
{
List <string> values = new List <string>();
foreach (FunctionDefinition fd in functionDefinitionCollection)
{
values.Add(fd.Name);
}
return(String.Join(", ", values.ToArray()));
}
/// <summary>
/// Parses the type of the expression.
/// </summary>
/// <param name="exprStr">The expr STR.</param>
/// <param name="conn">The conn.</param>
/// <returns></returns>
public static FdoPropertyType?ParseExpressionType(string exprStr, FdoConnection conn)
{
Expression expr = null;
try
{
expr = Expression.Parse(exprStr);
}
catch (OSGeo.FDO.Common.Exception)
{
return(null);
}
if (expr.GetType() == typeof(Function))
{
Function func = expr as Function;
FunctionDefinitionCollection funcDefs = (FunctionDefinitionCollection)conn.Capability.GetObjectCapability(CapabilityType.FdoCapabilityType_ExpressionFunctions);
FunctionDefinition funcDef = null;
//Try to get the return type
foreach (FunctionDefinition fd in funcDefs)
{
if (fd.Name == func.Name)
{
funcDef = fd;
break;
}
}
if (funcDef == null)
{
return(null);
}
switch (funcDef.ReturnPropertyType)
{
case PropertyType.PropertyType_AssociationProperty:
return(FdoPropertyType.Association);
case PropertyType.PropertyType_GeometricProperty:
return(FdoPropertyType.Geometry);
case PropertyType.PropertyType_ObjectProperty:
return(FdoPropertyType.Object);
case PropertyType.PropertyType_RasterProperty:
return(FdoPropertyType.Raster);
case PropertyType.PropertyType_DataProperty:
{
return(ValueConverter.GetPropertyType(funcDef.ReturnType));
}
}
}
else if (expr.GetType() == typeof(BinaryExpression))
{
return(FdoPropertyType.Boolean);
}
else if (expr.GetType() == typeof(DataValue))
{
DataValue dv = (DataValue)expr;
return(ValueConverter.GetPropertyType(dv.DataType));
}
return(null);
}
private string GetFunctions(FunctionDefinitionCollection functionDefinitionCollection)
{
List<string> values = new List<string>();
foreach (FunctionDefinition fd in functionDefinitionCollection)
{
values.Add(fd.Name);
}
return String.Join(", ", values.ToArray());
}
internal static PropertyDefinition CreatePropertyFromExpressionType(string exprText, ClassDefinition clsDef, FunctionDefinitionCollection functionDefs, string defaultSpatialContextName)
{
string name = string.Empty;
using (var expr = Expression.Parse(exprText))
{
var et = expr.GetType();
if (typeof(ComputedIdentifier).IsAssignableFrom(et))
{
var subExpr = ((ComputedIdentifier)expr).Expression;
return CreatePropertyFromExpressionType(subExpr.ToString(), clsDef, functionDefs, defaultSpatialContextName);
}
else if (typeof(Identifier).IsAssignableFrom(et))
{
var id = (Identifier)expr;
return CloneProperty(clsDef.Properties[id.Name]);
}
else if (typeof(Function).IsAssignableFrom(et))
{
var func = (Function)expr;
if (functionDefs != null)
{
var fidx = functionDefs.IndexOf(func.Name);
if (fidx >= 0)
{
var funcDef = functionDefs[fidx];
switch (funcDef.ReturnPropertyType)
{
case PropertyType.PropertyType_DataProperty:
{
var dp = new DataPropertyDefinition(name, "");
dp.DataType = funcDef.ReturnType;
dp.Nullable = true;
if (dp.DataType == DataType.DataType_String)
dp.Length = 255;
return dp;
}
break;
case PropertyType.PropertyType_GeometricProperty:
{
var geom = new GeometricPropertyDefinition(name, "");
geom.SpatialContextAssociation = defaultSpatialContextName;
geom.GeometryTypes = (int)GeometricType.GeometricType_All;
return geom;
}
break;
}
}
}
}
else if (typeof(BinaryExpression).IsAssignableFrom(et))
{
var dp = new DataPropertyDefinition(name, "");
dp.DataType = DataType.DataType_Boolean;
dp.Nullable = true;
return dp;
}
else if (typeof(DataValue).IsAssignableFrom(et))
{
var dv = (DataValue)expr;
var dp = new DataPropertyDefinition(name, "");
dp.DataType = dv.DataType;
if (dp.DataType == DataType.DataType_String)
dp.Length = 255;
dp.Nullable = true;
return dp;
}
else if (typeof(GeometryValue).IsAssignableFrom(et))
{
var geom = new GeometricPropertyDefinition(name, "");
geom.GeometryTypes = (int)GeometricType.GeometricType_All;
return geom;
}
}
return null;
}
internal static PropertyDefinition CreatePropertyFromExpressionType(string exprText, ClassDefinition clsDef, FunctionDefinitionCollection functionDefs, string defaultSpatialContextName)
{
string name = string.Empty;
using (var expr = Expression.Parse(exprText))
{
var et = expr.GetType();
if (typeof(ComputedIdentifier).IsAssignableFrom(et))
{
var subExpr = ((ComputedIdentifier)expr).Expression;
return(CreatePropertyFromExpressionType(subExpr.ToString(), clsDef, functionDefs, defaultSpatialContextName));
}
else if (typeof(Identifier).IsAssignableFrom(et))
{
var id = (Identifier)expr;
return(CloneProperty(clsDef.Properties[id.Name]));
}
else if (typeof(Function).IsAssignableFrom(et))
{
var func = (Function)expr;
if (functionDefs != null)
{
var fidx = functionDefs.IndexOf(func.Name);
if (fidx >= 0)
{
var funcDef = functionDefs[fidx];
switch (funcDef.ReturnPropertyType)
{
case PropertyType.PropertyType_DataProperty:
{
var dp = new DataPropertyDefinition(name, "");
dp.DataType = funcDef.ReturnType;
dp.Nullable = true;
if (dp.DataType == DataType.DataType_String)
{
dp.Length = 255;
}
return(dp);
}
break;
case PropertyType.PropertyType_GeometricProperty:
{
var geom = new GeometricPropertyDefinition(name, "");
geom.SpatialContextAssociation = defaultSpatialContextName;
geom.GeometryTypes = (int)GeometricType.GeometricType_All;
return(geom);
}
break;
}
}
}
}
else if (typeof(BinaryExpression).IsAssignableFrom(et))
{
var dp = new DataPropertyDefinition(name, "");
dp.DataType = DataType.DataType_Boolean;
dp.Nullable = true;
return(dp);
}
else if (typeof(DataValue).IsAssignableFrom(et))
{
var dv = (DataValue)expr;
var dp = new DataPropertyDefinition(name, "");
dp.DataType = dv.DataType;
if (dp.DataType == DataType.DataType_String)
{
dp.Length = 255;
}
dp.Nullable = true;
return(dp);
}
else if (typeof(GeometryValue).IsAssignableFrom(et))
{
var geom = new GeometricPropertyDefinition(name, "");
geom.GeometryTypes = (int)GeometricType.GeometricType_All;
return(geom);
}
}
return(null);
}
internal static FdoClassCopyOptions FromElement(FdoCopyTaskElement el, FeatureSchemaCache cache, FdoConnection sourceConn, FdoConnection targetConn, out TargetClassModificationItem mod)
{
mod = null;
if (!cache.HasConnection(el.Source.connection))
{
throw new TaskLoaderException("The referenced source connection is not defined");
}
if (!cache.HasConnection(el.Target.connection))
{
throw new TaskLoaderException("The referenced target connection is not defined");
}
FdoClassCopyOptions opts = new FdoClassCopyOptions(el.Source.connection, el.Target.connection, el.Source.schema, el.Source.@class, el.Target.schema, el.Target.@class);
opts.DeleteTarget = el.Options.DeleteTarget;
opts.SourceFilter = el.Options.Filter;
if (!el.Options.FlattenGeometriesSpecified)
{
opts.FlattenGeometries = false;
}
else
{
opts.FlattenGeometries = el.Options.FlattenGeometries;
}
if (!el.Options.ForceWKBSpecified)
{
opts.ForceWkb = false;
}
else
{
opts.ForceWkb = el.Options.ForceWKB;
}
if (!string.IsNullOrEmpty(el.Options.BatchSize))
{
opts.BatchSize = Convert.ToInt32(el.Options.BatchSize);
}
opts.Name = el.name;
opts.CreateIfNotExists = el.createIfNotExists;
ClassDefinition srcClass = cache.GetClassByName(el.Source.connection, el.Source.schema, el.Source.@class);
ClassDefinition dstClass = cache.GetClassByName(el.Target.connection, el.Target.schema, el.Target.@class);
if (!el.createIfNotExists && dstClass == null)
{
throw new InvalidOperationException("Target class " + el.Target.@class + " does not exist and the createIfNotExist option is false");
}
SpatialContextInfo defaultSc = null;
FunctionDefinitionCollection availableFunctions = (FunctionDefinitionCollection)sourceConn.Capability.GetObjectCapability(CapabilityType.FdoCapabilityType_ExpressionFunctions);
using (var svc = targetConn.CreateFeatureService())
{
defaultSc = svc.GetActiveSpatialContext();
}
if (dstClass != null)
{
foreach (FdoPropertyMappingElement propMap in el.PropertyMappings)
{
if (srcClass.Properties.IndexOf(propMap.source) < 0)
{
throw new TaskLoaderException("The property mapping (" + propMap.source + " -> " + propMap.target + ") in task (" + el.name + ") contains a source property not found in the source class definition (" + el.Source.@class + ")");
}
//Add to list of properties to check for
if (propMap.createIfNotExists && dstClass.Properties.IndexOf(propMap.target) < 0)
{
if (mod == null)
{
mod = new UpdateTargetClass(dstClass.Name);
}
opts.AddSourcePropertyToCheck(propMap.source);
//Clone copy of source property of same name
var srcProp = srcClass.Properties[srcClass.Properties.IndexOf(propMap.source)];
srcProp = FdoSchemaUtil.CloneProperty(srcProp);
mod.AddProperty(srcProp);
}
else
{
if (dstClass.Properties.IndexOf(propMap.target) < 0)
{
throw new TaskLoaderException("The property mapping (" + propMap.source + " -> " + propMap.target + ") in task (" + el.name + ") contains a target property not found in the target class definition (" + el.Target.@class + ")");
}
PropertyDefinition sp = srcClass.Properties[propMap.source];
PropertyDefinition tp = dstClass.Properties[propMap.target];
if (sp.PropertyType != tp.PropertyType)
{
throw new TaskLoaderException("The properties in the mapping (" + propMap.source + " -> " + propMap.target + ") are of different types");
}
//if (sp.PropertyType != PropertyType.PropertyType_DataProperty)
// throw new TaskLoaderException("One or more properties in the mapping (" + propMap.source + " -> " + propMap.target + ") is not a data property");
DataPropertyDefinition sdp = sp as DataPropertyDefinition;
DataPropertyDefinition tdp = tp as DataPropertyDefinition;
opts.AddPropertyMapping(propMap.source, propMap.target);
//Property mapping is between two data properties
if (sdp != null && tdp != null)
{
//Types not equal, so add a conversion rule
if (sdp.DataType != tdp.DataType)
{
FdoDataPropertyConversionRule rule = new FdoDataPropertyConversionRule(
propMap.source,
propMap.target,
sdp.DataType,
tdp.DataType,
propMap.nullOnFailedConversion,
propMap.truncate);
opts.AddDataConversionRule(propMap.source, rule);
}
}
}
}
//
foreach (FdoExpressionMappingElement exprMap in el.ExpressionMappings)
{
if (string.IsNullOrEmpty(exprMap.target))
{
continue;
}
opts.AddSourceExpression(exprMap.alias, exprMap.Expression, exprMap.target);
//Add to list of properties to check for
if (exprMap.createIfNotExists)
{
//Class exists but property doesn't
if (dstClass.Properties.IndexOf(exprMap.target) < 0)
{
if (mod == null)
{
mod = new UpdateTargetClass(el.Target.@class);
}
var prop = FdoSchemaUtil.CreatePropertyFromExpressionType(exprMap.Expression, srcClass, availableFunctions, defaultSc.Name);
if (prop == null)
{
throw new InvalidOperationException("Could not derive a property definition from the expression: " + exprMap.Expression);
}
prop.Name = exprMap.target;
mod.AddProperty(prop);
}
}
else //Conversion rules can only apply if both properties exist.
{
FdoPropertyType?pt = ExpressionUtility.ParseExpressionType(exprMap.Expression, sourceConn);
if (pt.HasValue)
{
DataType?srcDt = ValueConverter.GetDataType(pt.Value);
if (srcDt.HasValue)
{
PropertyDefinition tp = dstClass.Properties[exprMap.target];
DataPropertyDefinition tdp = tp as DataPropertyDefinition;
if (tdp != null)
{
if (srcDt.Value != tdp.DataType)
{
FdoDataPropertyConversionRule rule = new FdoDataPropertyConversionRule(
exprMap.alias,
exprMap.target,
srcDt.Value,
tdp.DataType,
exprMap.nullOnFailedConversion,
exprMap.truncate);
opts.AddDataConversionRule(exprMap.alias, rule);
}
}
}
}
}
}
}
else //class doesn't exist
{
mod = new CreateTargetClassFromSource(el.Source.schema, el.Target.@class);
foreach (var propMap in el.PropertyMappings)
{
opts.AddPropertyMapping(propMap.source, propMap.target);
if (propMap.createIfNotExists)
{
opts.AddSourcePropertyToCheck(propMap.source);
}
}
foreach (var exprMap in el.ExpressionMappings)
{
opts.AddSourceExpression(exprMap.alias, exprMap.Expression, exprMap.target);
if (exprMap.createIfNotExists)
{
opts.AddSourcePropertyToCheck(exprMap.alias);
}
var prop = FdoSchemaUtil.CreatePropertyFromExpressionType(exprMap.Expression, srcClass, availableFunctions, defaultSc.Name);
if (prop == null)
{
throw new InvalidOperationException("Could not derive a property definition from the expression: " + exprMap.Expression);
}
prop.Name = exprMap.target;
mod.AddProperty(prop);
}
}
return(opts);
}
public void MapExpression(string srcAlias, string destProperty, bool createIfNotExists)
{
var dstCls = Parent.TargetClass;
TreeNode exprNode = _node.Nodes[srcAlias];
ExpressionMappingInfo map = (ExpressionMappingInfo)exprNode.Tag;
if (destProperty != null)
{
if (dstCls != null)
{
PropertyDefinition dst = dstCls.Properties[destProperty];
DataPropertyDefinition dp = dst as DataPropertyDefinition;
if (string.IsNullOrEmpty(map.Expression))
{
throw new MappingException("Cannot map alias. There is no expression defined");
}
Expression expr = null;
try
{
expr = Expression.Parse(map.Expression);
}
catch (OSGeo.FDO.Common.Exception ex)
{
throw new MappingException("Cannot map alias. Invalid expression: " + ex.Message);
}
if (typeof(Function).IsAssignableFrom(expr.GetType()))
{
Function func = expr as Function;
FdoConnection conn = Parent.GetSourceConnection();
FunctionDefinitionCollection funcDefs = (FunctionDefinitionCollection)conn.Capability.GetObjectCapability(CapabilityType.FdoCapabilityType_ExpressionFunctions);
FunctionDefinition funcDef = null;
//Shouldn't happen because Expression Editor ensures a valid function
if (!funcDefs.Contains(func.Name))
{
throw new MappingException("Cannot map alias. Expression contains unsupported function: " + func.Name);
}
//Try to get the return type
foreach (FunctionDefinition fd in funcDefs)
{
if (fd.Name == func.Name)
{
funcDef = fd;
break;
}
}
if (funcDef.ReturnPropertyType != dst.PropertyType)
{
throw new MappingException("Cannot map alias. Expression evaluates to an un-mappable property type");
}
if (funcDef.ReturnPropertyType == PropertyType.PropertyType_GeometricProperty)
{
}
else if (funcDef.ReturnPropertyType == PropertyType.PropertyType_DataProperty)
{
if (!ValueConverter.IsConvertible(funcDef.ReturnType, dp.DataType))
{
throw new MappingException("Cannot map alias to property " + dst.Name + ". Expression evaluates to a data type that cannot be mapped to " + dp.DataType);
}
}
else //Association, Object, Raster
{
throw new MappingException("Cannot map alias. Expression evaluates to an un-mappable property type");
}
}
else if (typeof(BinaryExpression).IsAssignableFrom(expr.GetType()))
{
if (dp == null)
{
throw new MappingException("Cannot map alias. Expression evaluates to an un-mappable property type");
}
//We're assuming that this evalutes to a boolean value
if (!ValueConverter.IsConvertible(DataType.DataType_Boolean, dp.DataType))
{
throw new MappingException("Cannot map alias to property " + dst.Name + ". Expression evaluates to a data type that cannot be mapped to " + dp.DataType);
}
}
else if (typeof(DataValue).IsAssignableFrom(expr.GetType()))
{
if (dp == null)
{
throw new MappingException("Cannot map alias. Expression evaluates to an un-mappable property type");
}
DataValue dv = (DataValue)expr;
if (!ValueConverter.IsConvertible(dv.DataType, dp.DataType))
{
throw new MappingException("Cannot map alias to property " + dst.Name + ". Expression evaluates to a data type that cannot be mapped to " + dp.DataType);
}
}
//else if (expr.GetType() == typeof(Identifier))
//{
// //TODO: use the property type of the referenced property
//}
else //Cannot be evaluated
{
throw new MappingException("Cannot map alias. Expression evaluates to an un-mappable value");
}
}
else
{
if (!createIfNotExists)
{
throw new MappingException("Cannot map alias. The specified target property " + destProperty + " does not exist and the \"create if necessary\" option was not specified");
}
}
}
//All good
exprNode.Text = srcAlias + " ( => " + destProperty + " )";
map.TargetProperty = destProperty;
if (destProperty != null)
{
exprNode.Text = exprNode.Name + " => " + destProperty;
}
else
{
exprNode.Text = exprNode.Name;
}
GetConversionRule(srcAlias).CreateIfNotExists = createIfNotExists;
}
private void LoadFunctionDefinitions(FunctionDefinitionCollection funcs)
{
foreach (FunctionDefinition funcDef in funcs)
{
ToolStripMenuItem item = new ToolStripMenuItem();
item.Text = item.Name = funcDef.Name;
item.ToolTipText = funcDef.Description;
item.Tag = funcDef;
item.Click += new EventHandler(function_Click);
_FunctionMenuItems[funcDef.FunctionCategoryType].DropDown.Items.Add(item);
_autoCompleteItems[funcDef.Name] = new FunctionItem(funcDef);
}
}
