public bool CanRead(IEvaluationContext context, object target, string name)
{
if (target == null)
{
return(false);
}
var type = target is Type ? (Type)target : target.GetType();
if (type.IsArray)
{
return(false);
}
if (_member is MethodInfo)
{
var method = (MethodInfo)_member;
var getterName = "get_" + ReflectivePropertyAccessor.Capitalize(name);
if (getterName.Equals(method.Name))
{
return(true);
}
return(false);
}
else
{
var field = (FieldInfo)_member;
return(field.Name.Equals(name));
}
}
public void TestOptimalReflectivePropertyAccessor()
{
var reflective = new ReflectivePropertyAccessor();
var tester = new Tester
{
Property = "hello"
};
var ctx = new StandardEvaluationContext(tester);
Assert.True(reflective.CanRead(ctx, tester, "Property"));
Assert.Equal("hello", reflective.Read(ctx, tester, "Property").Value);
// cached accessor used
Assert.Equal("hello", reflective.Read(ctx, tester, "Property").Value);
var property = reflective.CreateOptimalAccessor(ctx, tester, "Property");
Assert.True(property.CanRead(ctx, tester, "Property"));
Assert.False(property.CanRead(ctx, tester, "Property2"));
Assert.Throws <InvalidOperationException>(() => property.CanWrite(ctx, tester, "Property"));
Assert.Throws <InvalidOperationException>(() => property.CanWrite(ctx, tester, "Property2"));
Assert.Equal("hello", property.Read(ctx, tester, "Property").Value);
// cached accessor used
Assert.Equal("hello", property.Read(ctx, tester, "Property").Value);
Assert.Throws <InvalidOperationException>(() => property.GetSpecificTargetClasses());
Assert.Throws <InvalidOperationException>(() => property.Write(ctx, tester, "Property", null));
var field = reflective.CreateOptimalAccessor(ctx, tester, "Field");
Assert.True(field.CanRead(ctx, tester, "Field"));
Assert.False(field.CanRead(ctx, tester, "Field2"));
Assert.Throws <InvalidOperationException>(() => field.CanWrite(ctx, tester, "Field"));
Assert.Throws <InvalidOperationException>(() => field.CanWrite(ctx, tester, "Field2"));
Assert.Equal(3, field.Read(ctx, tester, "Field").Value);
// cached accessor used
Assert.Equal(3, field.Read(ctx, tester, "Field").Value);
Assert.Throws <InvalidOperationException>(() => field.GetSpecificTargetClasses());
Assert.Throws <InvalidOperationException>(() => field.Write(ctx, tester, "field", null));
}
public void TestReflectivePropertyAccessor()
{
var rpa = new ReflectivePropertyAccessor();
var t = new Tester
{
Property = "hello"
};
var ctx = new StandardEvaluationContext(t);
Assert.True(rpa.CanRead(ctx, t, "Property"));
Assert.Equal("hello", rpa.Read(ctx, t, "Property").Value);
// cached accessor used
Assert.Equal("hello", rpa.Read(ctx, t, "Property").Value);
Assert.True(rpa.CanRead(ctx, t, "Field"));
Assert.Equal(3, rpa.Read(ctx, t, "Field").Value);
// cached accessor used
Assert.Equal(3, rpa.Read(ctx, t, "Field").Value);
Assert.True(rpa.CanWrite(ctx, t, "Property"));
rpa.Write(ctx, t, "Property", "goodbye");
rpa.Write(ctx, t, "Property", "goodbye"); // cached accessor used
Assert.True(rpa.CanWrite(ctx, t, "Field"));
rpa.Write(ctx, t, "Field", 12);
rpa.Write(ctx, t, "Field", 12);
// Attempted Write as first activity on this field and property to drive testing
// of populating type descriptor cache
rpa.Write(ctx, t, "Field2", 3);
rpa.Write(ctx, t, "Property2", "doodoo");
Assert.Equal(3, rpa.Read(ctx, t, "Field2").Value);
// Attempted Read as first activity on this field and property (no CanRead before them)
Assert.Equal(0, rpa.Read(ctx, t, "Field3").Value);
Assert.Equal("doodoo", rpa.Read(ctx, t, "Property3").Value);
// Access through is method
Assert.Equal(0, rpa.Read(ctx, t, "Field3").Value);
Assert.False((bool)rpa.Read(ctx, t, "Property4").Value);
Assert.True(rpa.CanRead(ctx, t, "Property4"));
// repro SPR-9123, ReflectivePropertyAccessor JavaBean property names compliance tests
Assert.Equal("iD", rpa.Read(ctx, t, "iD").Value);
Assert.True(rpa.CanRead(ctx, t, "iD"));
Assert.Equal("id", rpa.Read(ctx, t, "Id").Value);
Assert.True(rpa.CanRead(ctx, t, "Id"));
Assert.Equal("ID", rpa.Read(ctx, t, "ID").Value);
Assert.True(rpa.CanRead(ctx, t, "ID"));
// note: "Id" is not a valid JavaBean name, nevertheless it is treated as "id"
Assert.Equal("id", rpa.Read(ctx, t, "Id").Value);
Assert.True(rpa.CanRead(ctx, t, "Id"));
// repro SPR-10994
Assert.Equal("xyZ", rpa.Read(ctx, t, "XyZ").Value);
Assert.True(rpa.CanRead(ctx, t, "XyZ"));
Assert.Equal("xY", rpa.Read(ctx, t, "XY").Value);
Assert.True(rpa.CanRead(ctx, t, "XY"));
// SPR-10122, ReflectivePropertyAccessor JavaBean property names compliance tests - setters
rpa.Write(ctx, t, "pEBS", "Test String");
Assert.Equal("Test String", rpa.Read(ctx, t, "pEBS").Value);
}
