internal static View ConvertCollection <T>(IEnumerable data)
{
var ctype = typeof(T);
var type = Common.TryGetSerializationItemType(ctype, data, Text.Method.ToView);
if (type == null)
{
throw new QueryTalkException("Common.TryGetSerializationItemType",
QueryTalkExceptionType.EmptyDynamicResult, String.Format("type = {0}", ctype), Text.Method.ToView);
}
Type clrType = null;
QueryTalkException exception;
List <ViewColumnInfo> columns = new List <ViewColumnInfo>();
bool isScalar = (Mapping.CheckClrCompliance(type, out clrType, out exception) == Mapping.ClrTypeMatch.ClrMatch);
bool isDataValue = type == typeof(Value);
if (isDataValue)
{
isScalar = true;
clrType = typeof(System.Object);
}
bool isEmpty = _CheckIfEmpty(data, isScalar);
var properties = type.GetReadableProperties();
List <IPropertyAccessor> getters = null;
int numberOfProperties = 0;
var sqlOuter = Text.GenerateSql(500);
var sqlEmpty = Text.GenerateSql(200)
.NewLineIndent(Text.Select).S();
// outer select:
if (isScalar)
{
_BuildScalarOuterSelect(type, clrType, columns, sqlOuter);
}
else
{
_BuildClassOuterSelect(type, ref clrType, ref exception, columns, isEmpty, properties, out getters,
out numberOfProperties, sqlOuter, sqlEmpty);
}
// inner select:
var sqlInner = Text.GenerateSql(500);
int rowCount = 0;
if (!isEmpty)
{
bool firstRow = true;
foreach (var row in data)
{
if (!isScalar && row == null)
{
continue;
}
_BuildSelect(sqlInner, firstRow);
if (!isScalar)
{
_BuildClassValues(columns, properties, getters, numberOfProperties, sqlInner, firstRow, row);
}
else
{
AppendColumn(sqlInner, Mapping.BuildUnchecked(row), Text.SingleColumnShortName);
}
firstRow = false;
++rowCount;
}
}
else
{
if (isScalar)
{
AppendColumn(sqlEmpty, Text.Null, Text.SingleColumnShortName);
}
sqlInner.Append(sqlEmpty.ToString());
}
return(Finalizer(type, sqlOuter, sqlInner, columns.ToArray(), rowCount, isEmpty));
}
private static void _BuildClassOuterSelect(Type type, ref Type clrType, ref QueryTalkException exception, List <ViewColumnInfo> columns,
bool isEmpty, PropertyInfo[] properties, out List <IPropertyAccessor> getters, out int numberOfProperties,
StringBuilder sqlOuter, StringBuilder sqlEmpty)
{
numberOfProperties = properties.Length;
if (numberOfProperties == 0)
{
throw new QueryTalkException("ViewConverter.ToView<T>", QueryTalkExceptionType.InvalidDataClass,
String.Format("data class = {0}", type));
}
bool cached = Cache.PropertyAccessors.TryGetValue(type, out getters);
if (!cached)
{
getters = new List <IPropertyAccessor>();
}
NodeMap rowMap = null;
bool isDbRow = type.IsDbRow();
if (isDbRow)
{
rowMap = DbMapping.GetNodeMap(type);
if (rowMap.ID.Equals(DB3.Default))
{
DbRow.ThrowInvalidDbRowException(type);
}
}
// outer select:
int i = 0;
foreach (var property in properties)
{
string column;
var clrTypeMatch = Mapping.CheckClrCompliance(property.PropertyType, out clrType, out exception);
if (clrTypeMatch != Mapping.ClrTypeMatch.ClrMatch)
{
continue;
}
ViewColumnInfo columnInfo;
if (isDbRow)
{
var rowColumn = rowMap.Columns.Where(a => a.ID.ColumnZ == i + 1).First();
column = rowColumn.Name.Part1;
columnInfo = new ViewColumnInfo(column, rowColumn.DataType, rowColumn.IsNullable);
columns.Add(columnInfo);
}
else
{
column = property.Name;
columnInfo = new ViewColumnInfo(column, property.PropertyType, clrType);
columns.Add(columnInfo);
}
if (i != 0)
{
sqlOuter.NewLineIndent(Text.Comma);
sqlEmpty.Append(Text.Comma);
}
var dataType = Mapping.ProvideDataType(columnInfo.DataType, clrType);
AppendOuterColumn(sqlOuter, dataType, i + 1, column);
if (isEmpty)
{
AppendNullValueColumn(sqlEmpty, i + 1);
}
if (!cached)
{
getters.Add(PropertyAccessor.Create(type, property));
}
++i;
}
numberOfProperties = i;
if (numberOfProperties == 0)
{
ThrowInvalidDataClassException(type);
}
if (!cached)
{
Cache.PropertyAccessors[type] = getters;
}
}
internal static T SetClass <T>(T target, object source)
{
if (target == null)
{
throw new QueryTalkException("ClassConverter.ToClass", QueryTalkExceptionType.ArgumentNull,
"target= null", Text.Method.Pack);
}
if (source == null)
{
throw new QueryTalkException("ClassConverter.ToClass", QueryTalkExceptionType.ArgumentNull,
"source = null", Text.Method.Pack);
}
if (target != null && object.ReferenceEquals(target, source))
{
return(target);
}
Type targetType = target.GetType();
Type sourceType = source.GetType();
TryCheckClassType(targetType);
TryCheckClassType(sourceType);
var sourceProperties = sourceType.GetReadableProperties();
var targetProperties = targetType.GetWritableProperties();
if (targetProperties.Length == 0)
{
throw new QueryTalkException("ClassConverter.TryCheckClassType", QueryTalkExceptionType.InvalidPack,
String.Format("type = {0}", targetType), Text.Method.Pack);
}
if (sourceProperties.Length == 0)
{
throw new QueryTalkException("ClassConverter.TryCheckClassType", QueryTalkExceptionType.InvalidPack,
String.Format("type = {0}", sourceType), Text.Method.Pack);
}
bool match = false;
Type clrType;
QueryTalkException exception;
foreach (var targetProperty in targetProperties)
{
var clrTypeMatch = Mapping.CheckClrCompliance(targetProperty.PropertyType, out clrType, out exception);
if (clrTypeMatch != Mapping.ClrTypeMatch.ClrMatch)
{
continue;
}
var sourceProperty = sourceProperties.Where(p => p.Name == targetProperty.Name).FirstOrDefault();
if (sourceProperty != null)
{
if (Common.GetClrType(sourceProperty.PropertyType) != Common.GetClrType(targetProperty.PropertyType))
{
throw new QueryTalkException("ClassConverter.ToClass", QueryTalkExceptionType.PackPropertyMismatch,
String.Format("target property name = {0}{1} target property type = {2}{1} source property type = {3}",
targetProperty.Name, Environment.NewLine, targetProperty.PropertyType, sourceProperty.PropertyType),
Text.Method.Pack);
}
match = true;
targetProperty.SetValue(target, sourceProperty.GetValue(source, null), null);
}
}
if (!match)
{
throw new QueryTalkException("ClassConverter.TryCheckClassType", QueryTalkExceptionType.InvalidPack,
String.Format("target type = {0}{1} source type = {2}",
targetType, Environment.NewLine, sourceType),
Text.Method.Pack);
}
return(target);
}
// build the most outer SQL wrapper
internal string BuildOutputWrapper(string execSql)
{
var root = Executable.Compilable.GetRoot();
var outputArguments = ParameterArgument.GetOutputArguments(Executable.Arguments);
var sql = Text.GenerateSql(1000).Append(Text.Free.QueryTalkCode);
// after: drop temp tables
var sqlAfter = Text.GenerateSql(100);
sqlAfter.Append(DropTempTables());
if (root.IsEmbeddedTryCatch)
{
sqlAfter
.NewLine(Text.EndTry)
.NewLine(Text.BeginCatch)
.NewLine(Text.Free.RaiserrorS)
.NewLine(Text.EndCatch).Terminate();
}
sql.Append(Text.Declare).S().Append(Text.Reserved.ReturnValueOuterParam)
.Append(Text._As_).Append(Text.Free.EnclosedInt).Terminate().S()
.Append(Text.Set).S().Append(Text.Reserved.ReturnValueOuterParam).Append(Text._Equal_)
.Append(Text.Zero).Terminate();
// TRY outer wrapper
if (root.IsEmbeddedTryCatch)
{
sql.NewLine(Text.BeginTry);
}
// output arguments
string outputValues = String.Empty;
foreach (var argument in outputArguments)
{
// param in outer wrapper that holds the outer reference
string paramOuterName = String.Format("{0}{1}{2}", argument.ParamName, Text.Underscore, Text.Output);
// before
sql.NewLine(Text.Declare).S()
.Append(paramOuterName).Append(Text._As_)
.Append(Executable.GetParamDeclaration(argument, false, true))
.Terminate().S()
.Append(Text.Set).S().Append(paramOuterName).Append(Text._Equal_);
if (argument.TestValue != null)
{
Testing.AppendTestValue(sql, argument);
}
else
{
sql.Append(Mapping.BuildUnchecked(argument.Value));
}
sql.TerminateSingle();
// after: return output values
outputValues = Text.GenerateSql(100)
.NewLineIndent(Text.Comma)
.Append(paramOuterName)
.Append(Text._As_)
.Append(Filter.Delimit(paramOuterName))
.ToString();
}
// append last sql code: return value + output values
sqlAfter
.NewLine(Text.Select).S()
.Append(Text.Free.ReturnValue)
.Append(Text._As_)
.Append(Text.Reserved.ReturnValueColumnName)
.Append(outputValues);
TryThrow(Text.Method.Pass);
sql.NewLine(execSql)
.Append(sqlAfter.ToString())
.TerminateSingle();
return(sql.ToString());
}
internal static IEnumerable <T> PackRows <T>(IEnumerable source)
where T : new()
{
if (source == null)
{
return(null);
}
Type targetType = typeof(T);
Type sourceType = null;
foreach (var row in source)
{
if (row == null)
{
continue;
}
sourceType = row.GetType();
break;
}
if (sourceType == null)
{
return(null);
}
TryCheckClassType(targetType);
TryCheckClassType(sourceType);
var sourceProperties = sourceType.GetReadableProperties();
var targetProperties = targetType.GetWritableProperties();
if (targetProperties.Length == 0)
{
throw new QueryTalkException("ClassConverter.TryCheckClassType", QueryTalkExceptionType.InvalidPack,
String.Format("type = {0}", targetType), Text.Method.Pack);
}
if (sourceProperties.Length == 0)
{
throw new QueryTalkException("ClassConverter.TryCheckClassType", QueryTalkExceptionType.InvalidPack,
String.Format("type = {0}", sourceType), Text.Method.Pack);
}
var sourceGetters = new List <IPropertyAccessor>();
var targetGetters = new List <IPropertyAccessor>();
bool match = false;
Type clrType;
QueryTalkException exception;
var numberOfPropertiesUsed = 0;
foreach (var targetProperty in targetProperties)
{
var clrTypeMatch = Mapping.CheckClrCompliance(targetProperty.PropertyType, out clrType, out exception);
if (clrTypeMatch != Mapping.ClrTypeMatch.ClrMatch)
{
continue;
}
var sourceProperty = sourceProperties.Where(p => p.Name == targetProperty.Name).FirstOrDefault();
if (sourceProperty != null)
{
if (Common.GetClrType(sourceProperty.PropertyType) != Common.GetClrType(targetProperty.PropertyType))
{
throw new QueryTalkException("ClassConverter.ToClass", QueryTalkExceptionType.PackPropertyMismatch,
String.Format("target property name = {0}{1} target property type = {2}{1} source property type = {3}",
targetProperty.Name, Environment.NewLine, targetProperty.PropertyType, sourceProperty.PropertyType),
Text.Method.Pack);
}
match = true;
sourceGetters.Add(PropertyAccessor.Create(sourceType, sourceProperty));
targetGetters.Add(PropertyAccessor.Create(targetType, targetProperty));
++numberOfPropertiesUsed;
}
}
if (!match)
{
throw new QueryTalkException("ClassConverter.TryCheckClassType", QueryTalkExceptionType.InvalidPack,
String.Format("target type = {0}{1} source type = {2}",
targetType, Environment.NewLine, sourceType),
Text.Method.Pack);
}
var rows = new HashSet <T>();
foreach (var sourceRow in source)
{
if (sourceRow == null)
{
continue;
}
var targetRow = new T();
for (int i = 0; i < numberOfPropertiesUsed; i++)
{
var value = sourceGetters[i].GetValue(sourceRow);
targetGetters[i].SetValue(targetRow, value);
}
rows.Add(targetRow);
}
return(rows);
}
