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//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.ServiceModel.Channels
{
using System;
using System.Globalization;
public abstract class FaultConverter
{
public static FaultConverter GetDefaultFaultConverter(MessageVersion version)
{
return new DefaultFaultConverter(version);
}
protected abstract bool OnTryCreateException(Message message, MessageFault fault, out Exception exception);
protected abstract bool OnTryCreateFaultMessage(Exception exception, out Message message);
public bool TryCreateException(Message message, MessageFault fault, out Exception exception)
{
if (message == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("message");
}
if (fault == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("fault");
}
bool created = this.OnTryCreateException(message, fault, out exception);
if (created)
{
if (exception == null)
{
string text = SR.GetString(SR.FaultConverterDidNotCreateException, this.GetType().Name);
Exception error = new InvalidOperationException(text);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(error);
}
}
else
{
if (exception != null)
{
string text = SR.GetString(SR.FaultConverterCreatedException, this.GetType().Name);
Exception error = new InvalidOperationException(text, exception);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(error);
}
}
return created;
}
public bool TryCreateFaultMessage(Exception exception, out Message message)
{
bool created = this.OnTryCreateFaultMessage(exception, out message);
if (created)
{
if (message == null)
{
string text = SR.GetString(SR.FaultConverterDidNotCreateFaultMessage, this.GetType().Name);
Exception error = new InvalidOperationException(text);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(error);
}
}
else
{
if (message != null)
{
string text = SR.GetString(SR.FaultConverterCreatedFaultMessage, this.GetType().Name);
Exception error = new InvalidOperationException(text);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(error);
}
}
return created;
}
class DefaultFaultConverter : FaultConverter
{
MessageVersion version;
internal DefaultFaultConverter(MessageVersion version)
{
this.version = version;
}
protected override bool OnTryCreateException(Message message, MessageFault fault, out Exception exception)
{
exception = null;
// SOAP MustUnderstand
if (string.Compare(fault.Code.Namespace, version.Envelope.Namespace, StringComparison.Ordinal) == 0
&& string.Compare(fault.Code.Name, MessageStrings.MustUnderstandFault, StringComparison.Ordinal) == 0)
{
exception = new ProtocolException(fault.Reason.GetMatchingTranslation(CultureInfo.CurrentCulture).Text);
return true;
}
bool checkSender;
bool checkReceiver;
FaultCode code;
if (version.Envelope == EnvelopeVersion.Soap11)
{
checkSender = true;
checkReceiver = true;
code = fault.Code;
}
else
{
checkSender = fault.Code.IsSenderFault;
checkReceiver = fault.Code.IsReceiverFault;
code = fault.Code.SubCode;
}
if (code == null)
{
return false;
}
if (code.Namespace == null)
{
return false;
}
if (checkSender)
{
// WS-Addressing
if (string.Compare(code.Namespace, version.Addressing.Namespace, StringComparison.Ordinal) == 0)
{
if (string.Compare(code.Name, AddressingStrings.ActionNotSupported, StringComparison.Ordinal) == 0)
{
exception = new ActionNotSupportedException(fault.Reason.GetMatchingTranslation(CultureInfo.CurrentCulture).Text);
return true;
}
else if (string.Compare(code.Name, AddressingStrings.DestinationUnreachable, StringComparison.Ordinal) == 0)
{
exception = new EndpointNotFoundException(fault.Reason.GetMatchingTranslation(CultureInfo.CurrentCulture).Text);
return true;
}
else if (string.Compare(code.Name, Addressing10Strings.InvalidAddressingHeader, StringComparison.Ordinal) == 0)
{
if (code.SubCode != null && string.Compare(code.SubCode.Namespace, version.Addressing.Namespace, StringComparison.Ordinal) == 0 &&
string.Compare(code.SubCode.Name, Addressing10Strings.InvalidCardinality, StringComparison.Ordinal) == 0)
{
exception = new MessageHeaderException(fault.Reason.GetMatchingTranslation(CultureInfo.CurrentCulture).Text, true);
return true;
}
}
else if (version.Addressing == AddressingVersion.WSAddressing10)
{
if (string.Compare(code.Name, Addressing10Strings.MessageAddressingHeaderRequired, StringComparison.Ordinal) == 0)
{
exception = new MessageHeaderException(fault.Reason.GetMatchingTranslation(CultureInfo.CurrentCulture).Text);
return true;
}
else if (string.Compare(code.Name, Addressing10Strings.InvalidAddressingHeader, StringComparison.Ordinal) == 0)
{
exception = new ProtocolException(fault.Reason.GetMatchingTranslation(CultureInfo.CurrentCulture).Text);
return true;
}
}
else
{
if (string.Compare(code.Name, Addressing200408Strings.MessageInformationHeaderRequired, StringComparison.Ordinal) == 0)
{
exception = new ProtocolException(fault.Reason.GetMatchingTranslation(CultureInfo.CurrentCulture).Text);
return true;
}
else if (string.Compare(code.Name, Addressing200408Strings.InvalidMessageInformationHeader, StringComparison.Ordinal) == 0)
{
exception = new ProtocolException(fault.Reason.GetMatchingTranslation(CultureInfo.CurrentCulture).Text);
return true;
}
}
}
}
if (checkReceiver)
{
// WS-Addressing
if (string.Compare(code.Namespace, version.Addressing.Namespace, StringComparison.Ordinal) == 0)
{
if (string.Compare(code.Name, AddressingStrings.EndpointUnavailable, StringComparison.Ordinal) == 0)
{
exception = new ServerTooBusyException(fault.Reason.GetMatchingTranslation(CultureInfo.CurrentCulture).Text);
return true;
}
}
}
return false;
}
protected override bool OnTryCreateFaultMessage(Exception exception, out Message message)
{
// WSA
if (this.version.Addressing == AddressingVersion.WSAddressing10)
{
if (exception is MessageHeaderException)
{
MessageHeaderException mhe = exception as MessageHeaderException;
if (mhe.HeaderNamespace == AddressingVersion.WSAddressing10.Namespace)
{
message = mhe.ProvideFault(this.version);
return true;
}
}
else if (exception is ActionMismatchAddressingException)
{
ActionMismatchAddressingException amae = exception as ActionMismatchAddressingException;
message = amae.ProvideFault(this.version);
return true;
}
}
if (this.version.Addressing != AddressingVersion.None)
{
if (exception is ActionNotSupportedException)
{
ActionNotSupportedException anse = exception as ActionNotSupportedException;
message = anse.ProvideFault(this.version);
return true;
}
}
// SOAP
if (exception is MustUnderstandSoapException)
{
MustUnderstandSoapException muse = exception as MustUnderstandSoapException;
message = muse.ProvideFault(this.version);
return true;
}
message = null;
return false;
}
}
}
}
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