/// <summary>Reads data and writes it to <paramref name="writer"/> until the end of the current container is
/// reached.</summary>
/// <returns>The contents of the of the data value with the outer id <paramref name="outerId"/>, if such a
/// data value was found in the current container and its contents is primitive; otherwise, <c>null</c>.
/// </returns>
/// <exception cref="ObjectDisposedException"><see cref="Dispose"/> has been called.</exception>
/// <remarks>
/// <para>While <see cref="Read"/> returns <c>true</c> and <see cref="InnerNumber"/> is not equal to
/// <see cref="Ember.InnerNumber.EndContainer"/>, calls <see cref="Copy"/>.</para>
/// </remarks>
public object CopyToEndContainer(EmberWriter writer, EmberId?outerId)
{
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
object result = null;
var inner = -1;
while (this.Read() && ((inner = this.innerNumber.GetValueOrDefault()) != Ember.InnerNumber.EndContainer))
{
var candidate = this.CopyCore(writer, inner);
if (this.outer.HasValue && (this.outer.Value == outerId))
{
result = candidate;
}
}
if (inner == Ember.InnerNumber.EndContainer)
{
writer.WriteEndContainer();
}
return(result);
}
public void ExceptionTest()
{
AssertThrow <ArgumentNullException>(() => new EmberWriter(null, 1).Dispose());
AssertThrow <ArgumentException>(() => new EmberWriter(new MemoryStream(), 0).Dispose());
using (var writer = new EmberWriter(new MemoryStream(), 1))
{
var outer = EmberId.CreateApplication(0);
AssertThrow <ArgumentNullException>(
() => writer.WriteValue(outer, (byte[])null),
() => writer.WriteValue(outer, (int[])null),
() => writer.WriteValue(outer, (string)null));
AssertThrow <ArgumentOutOfRangeException>(
() => writer.WriteStartApplicationDefinedType(outer, InnerNumber.FirstApplication - 1));
writer.Dispose();
AssertThrow <ObjectDisposedException>(
() => writer.WriteValue(outer, true),
() => writer.WriteValue(outer, 0),
() => writer.WriteValue(outer, new byte[] { }),
() => writer.WriteValue(outer, 0.0),
() => writer.WriteValue(outer, string.Empty),
() => writer.WriteValue(outer, new int[] { }),
() => writer.WriteStartSequence(outer),
() => writer.WriteStartSet(outer),
() => writer.WriteStartApplicationDefinedType(outer, InnerNumber.FirstApplication),
() => writer.WriteEndContainer());
}
}
public void ExceptionTest()
{
AssertThrow<ArgumentNullException>(() => new EmberWriter(null, 1).Dispose());
AssertThrow<ArgumentException>(() => new EmberWriter(new MemoryStream(), 0).Dispose());
using (var writer = new EmberWriter(new MemoryStream(), 1))
{
var outer = EmberId.CreateApplication(0);
AssertThrow<ArgumentNullException>(
() => writer.WriteValue(outer, (byte[])null),
() => writer.WriteValue(outer, (int[])null),
() => writer.WriteValue(outer, (string)null));
AssertThrow<ArgumentOutOfRangeException>(
() => writer.WriteStartApplicationDefinedType(outer, InnerNumber.FirstApplication - 1));
writer.Dispose();
AssertThrow<ObjectDisposedException>(
() => writer.WriteValue(outer, true),
() => writer.WriteValue(outer, 0),
() => writer.WriteValue(outer, new byte[] { }),
() => writer.WriteValue(outer, 0.0),
() => writer.WriteValue(outer, string.Empty),
() => writer.WriteValue(outer, new int[] { }),
() => writer.WriteStartSequence(outer),
() => writer.WriteStartSet(outer),
() => writer.WriteStartApplicationDefinedType(outer, InnerNumber.FirstApplication),
() => writer.WriteEndContainer());
}
}
/// <summary>Reads data and writes it to <paramref name="writer"/> until the end of the current container is
/// reached.</summary>
/// <returns>The contents of the of the data value with the outer id <paramref name="outerId"/>, if such a
/// data value was found in the current container and its contents is primitive; otherwise, <c>null</c>.
/// </returns>
/// <exception cref="ObjectDisposedException"><see cref="Dispose"/> has been called.</exception>
/// <remarks>
/// <para>While <see cref="Read"/> returns <c>true</c> and <see cref="InnerNumber"/> is not equal to
/// <see cref="Ember.InnerNumber.EndContainer"/>, calls <see cref="Copy"/>.</para>
/// </remarks>
public object CopyToEndContainer(EmberWriter writer, EmberId? outerId)
{
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
object result = null;
var inner = -1;
while (this.Read() && ((inner = this.innerNumber.GetValueOrDefault()) != Ember.InnerNumber.EndContainer))
{
var candidate = this.CopyCore(writer, inner);
if (this.outer.HasValue && (this.outer.Value == outerId))
{
result = candidate;
}
}
if (inner == Ember.InnerNumber.EndContainer)
{
writer.WriteEndContainer();
}
return result;
}
private void FromXmlCore(
XmlReader reader, EmberWriter writer, FieldPath <string, string> previousPath, string currentType)
{
if (reader.IsEmptyElement)
{
writer.WriteEndContainer();
return;
}
while (ReadNext(reader))
{
if (reader.NodeType == XmlNodeType.EndElement)
{
writer.WriteEndContainer();
return;
}
if (reader.NodeType != XmlNodeType.Element)
{
const string Format = "Unexpected Node Type: Encountered {0} while looking for {1}.";
throw new XmlException(
string.Format(InvariantCulture, Format, reader.NodeType, XmlNodeType.Element));
}
var currentPath = Combine(previousPath, new Field <string, string>(currentType, reader.Name));
var fieldId = this.GetFieldId(currentPath);
if (reader.AttributeCount != 1)
{
throw new XmlException(
"Unexpected Attribute Count: Each element must have exactly one type attribute.");
}
var nextType = reader.GetAttribute(0);
switch (nextType)
{
case BerBoolean.Name:
writer.WriteValue(fieldId, ReadValue(reader, r => r.ReadContentAsBoolean()));
break;
case BerInteger.Name:
writer.WriteValue(fieldId, ReadValue(reader, r => r.ReadContentAsLong()));
break;
case BerOctetstring.Name:
WriteOctetstring(reader, writer, fieldId);
break;
case BerReal.Name:
writer.WriteValue(fieldId, ReadValue(reader, r => r.ReadContentAsDouble()));
break;
case BerUtf8String.Name:
var value = ReadValue(reader, r => r.ReadContentAsString(), string.Empty);
switch (currentPath.ToString())
{
case "Parameter.contents.formula":
case "Parameter.contents.enumeration":
case "Parameter.contents.schemaIdentifiers":
case "QualifiedParameter.contents.formula":
case "QualifiedParameter.contents.enumeration":
case "QualifiedParameter.contents.schemaIdentifiers":
case "Node.contents.schemaIdentifiers":
case "QualifiedNode.contents.schemaIdentifiers":
case "Matrix.contents.schemaIdentifiers":
case "QualifiedMatrix.contents.schemaIdentifiers":
value = value.Replace(Environment.NewLine, "\n");
break;
default:
// Intentionally do nothing
break;
}
writer.WriteValue(fieldId, value);
break;
case BerRelativeObjectIdentifier.Name:
WriteRelativeObjectIdentifier(reader, writer, fieldId);
break;
case BerSequence.Name:
writer.WriteStartSequence(fieldId);
this.FromXmlCore(reader, writer, currentPath, nextType);
break;
case BerSet.Name:
writer.WriteStartSet(fieldId);
this.FromXmlCore(reader, writer, currentPath, nextType);
break;
default:
writer.WriteStartApplicationDefinedType(fieldId, this.GetInnerNumber(nextType));
this.FromXmlCore(reader, writer, currentPath, nextType);
break;
}
}
}
