public void UpdateAttributes()
{
_index = ColumnAttribute.McDefaultFieldIndex;
Name = _memberInfo.Name;
_inputNumberStyle = NumberStyles.Any;
OutputFormat = "";
HasColumnAttribute = false;
CharLength = 0;
foreach (Object attribute in _memberInfo.GetCustomAttributes(typeof(CsvColumnAttribute), true))
{
CsvColumnAttribute cca = (CsvColumnAttribute)attribute;
if (!string.IsNullOrEmpty(cca.Name))
{
Name = cca.Name;
}
_index = cca.FieldIndex;
HasColumnAttribute = true;
_canBeNull = cca.CanBeNull;
OutputFormat = cca.OutputFormat;
_inputNumberStyle = cca.NumberStyle;
CharLength = cca.CharLength;
}
}
public void Header_SetValue_ResultAreEqual(String expected)
{
CsvColumnAttribute attribute = new CsvColumnAttribute();
attribute.Header = expected;
Assert.AreEqual(expected, attribute.Header);
}
public void Offset_SetValue_ResultAreEqual(Int32 expected)
{
CsvColumnAttribute attribute = new CsvColumnAttribute();
attribute.Offset = expected;
Assert.AreEqual(expected, attribute.Offset);
}
/// <summary>
/// Tの情報をロードします。
/// setterには列番号をキーとしたsetメソッドが格納されます。
/// </summary>
private void LoadType()
{
Type type = typeof(T);
// Field, Property のみを対象とする
var memberTypes = new MemberTypes[] { MemberTypes.Field, MemberTypes.Property };
// インスタンスメンバーを対象とする
BindingFlags flag = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic;
foreach (MemberInfo member in type.GetMembers(flag).Where((member) => memberTypes.Contains(member.MemberType)))
{
CsvColumnAttribute csvColumn = GetCsvColumnAttribute(member);
if (csvColumn == null)
{
continue;
}
int columnIndex = csvColumn.ColumnIndex;
object defaultValue = csvColumn.DefaultValue;
if (member.MemberType == MemberTypes.Field)
{
// field
FieldInfo fieldInfo = type.GetField(member.Name, flag);
setters [columnIndex] = (target, value) =>
fieldInfo.SetValue(target, GetConvertedValue(fieldInfo, value, defaultValue));
}
else
{
// property
PropertyInfo propertyInfo = type.GetProperty(member.Name, flag);
setters [columnIndex] = (target, value) =>
propertyInfo.SetValue(target, GetConvertedValue(propertyInfo, value, defaultValue), null);
}
}
}
public void Construction_ItemDescriptor_ResultIsColumnAreEqual()
{
CsvColumnAttribute column = new CsvColumnAttribute();
ItemDescriptor actual = new ItemDescriptor(column, new PropertyInfoTest());
Assert.AreEqual(column, actual.Column);
}
public void CanDeserializeUsingCustomDateFormat() {
DateTimeConverter converter = new DateTimeConverter();
string text = "2019/May/04 3:02:01";
CsvColumnAttribute attribute = new CsvColumnAttribute("Date") { DateFormat = "yyyy/MMM/dd H:mm:ss" };
DateTime date = converter.Deserialize(text.AsMemory(), CultureInfo.InvariantCulture, attribute);
date.Should().Be(new DateTime(2019, 5, 4, 3, 2, 1));
}
public void CanSerializeUsingCustomDateFormat() {
DateTimeConverter converter = new DateTimeConverter();
DateTime date = new DateTime(2019, 5, 4, 3, 2, 1);
StringBuilder stringBuilder = new StringBuilder();
CsvColumnAttribute attribute = new CsvColumnAttribute("Date") { DateFormat = "yyyy/MMM/dd H:mm:ss" };
converter.AppendToStringBuilder(stringBuilder, CultureInfo.InvariantCulture, date, attribute, ',');
string serialized = stringBuilder.ToString();
serialized.Should().Be("2019/May/04 3:02:01");
}
public void CsvColumnAttributeTest()
{
CsvColumnAttribute a = new CsvColumnAttribute(0)
{
Name = "foo"
};
Assert.AreEqual(a.Index, 0);
Assert.AreEqual(a.Name, "foo");
}
/// <summary>
/// CsvReaderAttributeを読み込む
/// </summary>
/// <param name="info"></param>
private void GetCsvReaderAttributes(MemberInfo info)
{
Attribute[] attrs = Attribute.GetCustomAttributes(info, typeof(CsvColumnAttribute));
foreach (Attribute attr in attrs)
{
CsvColumnAttribute csvattr = attr as CsvColumnAttribute;
if (csvattr != null)
{
csvattr.PropertyName = info.Name;
ReaderAttributes.Add(csvattr.columnIndex, csvattr);
}
}
}
public void CanEmitDeserializerWithCustomDateFormat() {
DateTimeConverter converter = new DateTimeConverter();
string text = "2019/May/04 3:02:01";
CsvColumnAttribute attribute = new CsvColumnAttribute("Date") { DateFormat = "yyyy/MMM/dd H:mm:ss" };
DynamicMethod deserialize = new DynamicMethod("Deserialize", typeof(DateTime), new Type[] { typeof(ReadOnlyMemory<char>), typeof(IFormatProvider) }, typeof(DateTimeConverterTests));
deserialize.GetILGenerator()
.DeclareLocal<DateTime>(out LocalBuilder local)
.Ldarga_S(0)
.Emit(gen => converter.EmitDeserialize(gen, local, null, attribute))
.Ret();
object deserialized = deserialize.Invoke(this, new object?[] { text.AsMemory(), CultureInfo.InvariantCulture })!;
deserialized.Should().Be(new DateTime(2019, 5, 4, 3, 2, 1));
}
public void ToString_ItemDescriptor_ResultAreEqual(String originName, String headerName, Int32 offsetValue)
{
headerName = String.IsNullOrWhiteSpace(headerName) ? "<null>" : headerName;
PropertyInfoTest origin = new PropertyInfoTest {
name = $"{originName}",
};
CsvColumnAttribute column = new CsvColumnAttribute {
Header = $"{headerName}", Offset = offsetValue,
};
String expected = $"Offset: \"{offsetValue}\", Header: \"{headerName}\", Origin: \"{originName}\"";
ItemDescriptor actual = new ItemDescriptor(column, origin);
Assert.AreEqual(expected, actual.ToString());
}
public void CanEmitSerializerWithCustomDateFormat() {
DateTimeConverter converter = new DateTimeConverter();
DateTime date = new DateTime(2019, 5, 4, 3, 2, 1);
CsvColumnAttribute attribute = new CsvColumnAttribute("Date") { DateFormat = "yyyy/MMM/dd H:mm:ss" };
DynamicMethod serialize = new DynamicMethod("Serialize", typeof(string), new Type[] { typeof(DateTime), typeof(IFormatProvider), typeof(char) }, typeof(DateTimeConverterTests));
serialize.GetILGenerator()
.DeclareLocal<DateTime>(out LocalBuilder local)
.Newobj<StringBuilder>()
.Ldarg_0()
.Emit(gen => converter.EmitAppendToStringBuilder(gen, local, null, attribute))
.Callvirt<StringBuilder>("ToString")
.Ret();
string serialized = (string)serialize.Invoke(null, new object?[] { date, CultureInfo.InvariantCulture, ',' })!;
serialized.Should().Be("2019/May/04 3:02:01");
}
public void Construction_DefaultConstructor_ResultIsTrue()
{
CsvColumnAttribute attribute = new CsvColumnAttribute();
Assert.IsTrue(attribute.Header == String.Empty && attribute.Offset == -1);
}
// -----------------------------
// AnalyzeTypeField
//
private TypeFieldInfo AnalyzeTypeField(
MemberInfo mi,
bool allRequiredFieldsMustHaveFieldIndex,
bool allCsvColumnFieldsMustHaveFieldIndex)
{
TypeFieldInfo tfi = new TypeFieldInfo();
tfi.memberInfo = mi;
if (mi is PropertyInfo)
{
tfi.fieldType = ((PropertyInfo)mi).PropertyType;
}
else
{
tfi.fieldType = ((FieldInfo)mi).FieldType;
}
// parseNumberMethod will remain null if the property is not a numeric type.
// This would be the case for DateTime, Boolean, String and custom types.
// In those cases, just use a TypeConverter.
//
// DateTime and Boolean also have Parse methods, but they don't provide
// functionality that TypeConverter doesn't give you.
tfi.parseNumberMethod =
tfi.fieldType.GetMethod("Parse",
new Type[] { typeof(String), typeof(NumberStyles), typeof(IFormatProvider) });
if (tfi.parseNumberMethod == null)
{
if (m_fileDescription.UseOutputFormatForParsingCsvValue)
{
tfi.parseExactMethod = tfi.fieldType.GetMethod("ParseExact",
new Type[] { typeof(string), typeof(string), typeof(IFormatProvider) });
}
tfi.typeConverter = null;
if (tfi.parseExactMethod == null)
{
tfi.typeConverter =
TypeDescriptor.GetConverter(tfi.fieldType);
}
}
// -----
// Process the attributes
tfi.index = Int32.MaxValue;
tfi.name = mi.Name;
tfi.inputNumberStyle = NumberStyles.Any;
tfi.outputFormat = "";
tfi.hasColumnAttribute = false;
tfi.charLength = 0;
foreach (Object attribute in mi.GetCustomAttributes(typeof(CsvColumnAttribute), true))
{
CsvColumnAttribute cca = (CsvColumnAttribute)attribute;
if (!string.IsNullOrEmpty(cca.Name))
{
tfi.name = cca.Name;
}
tfi.index = cca.FieldIndex;
tfi.hasColumnAttribute = true;
tfi.canBeNull = cca.CanBeNull;
tfi.outputFormat = cca.OutputFormat;
tfi.inputNumberStyle = cca.NumberStyle;
tfi.charLength = cca.CharLength;
}
// -----
if (allCsvColumnFieldsMustHaveFieldIndex &&
tfi.hasColumnAttribute &&
tfi.index == Int32.MaxValue)
{
throw new ToBeWrittenButMissingFieldIndexException(
typeof(T).ToString(),
tfi.name);
}
if (allRequiredFieldsMustHaveFieldIndex &&
(!tfi.canBeNull) &&
(tfi.index == Int32.MaxValue))
{
throw new RequiredButMissingFieldIndexException(
typeof(T).ToString(),
tfi.name);
}
// -----
return(tfi);
}
/// <summary>
/// Erstellt eine neue Instanz für eine gefundene Eigenschaft
/// </summary>
/// <param name="initCsvAttribute">CsvAttribut, dass in der Klasse angegeben wurde</param>
/// <param name="initPropertyInfo">PropertyInfo für die Eigenschaft der Klasse</param>
public CsvFieldInfo(CsvColumnAttribute initCsvAttribute, System.Reflection.PropertyInfo initPropertyInfo)
: base()
{
csvColumnAttribute = initCsvAttribute;
propertyInfo = initPropertyInfo;
}
/// <summary>
/// The parameterized class constructor.
/// </summary>
/// <remarks>
/// This constructor initializes an instance of this class with the
/// characteristics of a CSV file column.
/// </remarks>
/// <param name="column">
/// An instance of class <see cref="CsvColumnAttribute"/> that describes
/// the characteristics of a CSV column.
/// </param>
/// <param name="origin">
/// An instance of class <see cref="PropertyInfo"/> that describes
/// the characteristics of the corresponding property.
/// </param>
/// <exception cref="ArgumentNullException">
/// This exception is thrown if one of the parameters is <null>.
/// </exception>
public ItemDescriptor(CsvColumnAttribute column, PropertyInfo origin)
: base()
{
this.Column = column ?? throw new ArgumentNullException(nameof(column));
this.Origin = origin ?? throw new ArgumentNullException(nameof(origin));
}
