MetadataExchangeSample
This example shows how to use service host for hosting a PurchaseOrder service over TCP. The service also supports WS-MetadataExchange.
MexService.cpp
//------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
//------------------------------------------------------------
#ifndef UNICODE
#define UNICODE
#endif
#include <windows.h>
#include <stdio.h>
#include "WebServices.h"
#include "process.h"
#include "string.h"
#include <strsafe.h>
#include "PurchaseOrder.wsdl.h"
// Print out rich error info
void PrintError(HRESULT errorCode, WS_ERROR* error)
{
wprintf(L"Failure: errorCode=0x%lx\n", errorCode);
if (errorCode == E_INVALIDARG || errorCode == WS_E_INVALID_OPERATION)
{
// Correct use of the APIs should never generate these errors
wprintf(L"The error was due to an invalid use of an API. This is likely due to a bug in the program.\n");
DebugBreak();
}
HRESULT hr = NOERROR;
if (error != NULL)
{
ULONG errorCount;
hr = WsGetErrorProperty(error, WS_ERROR_PROPERTY_STRING_COUNT, &errorCount, sizeof(errorCount));
if (FAILED(hr))
{
goto Exit;
}
for (ULONG i = 0; i < errorCount; i++)
{
WS_STRING string;
hr = WsGetErrorString(error, i, &string);
if (FAILED(hr))
{
goto Exit;
}
wprintf(L"%.*s\n", string.length, string.chars);
}
}
Exit:
if (FAILED(hr))
{
wprintf(L"Could not get error string (errorCode=0x%lx)\n", hr);
}
}
HANDLE closeServer = NULL;
static const WCHAR ExpectedShipDate [] = L"1/1/2006";
static const WCHAR OrderStatusString [] = L"Pending";
static WS_XML_STRING serviceName = WS_XML_STRING_VALUE("PurchaseOrderService");
static WS_XML_STRING serviceNamespace = WS_XML_STRING_VALUE("http://example.org");
static WS_XML_STRING portName = WS_XML_STRING_VALUE("IPurchaseOrder");
static WS_XML_STRING bindingName = WS_XML_STRING_VALUE("PurchaseOrderBinding");
static WS_XML_STRING bindingNs = WS_XML_STRING_VALUE("http://example.org");
// The WSDL document used by this example
const static WS_XML_STRING wsdl = WS_XML_STRING_VALUE(
"<wsdl:definitions "
" xmlns:soap='http://schemas.xmlsoap.org/wsdl/soap/' "
" xmlns:wsu='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd' "
" xmlns:soapenc='http://schemas.xmlsoap.org/soap/encoding/' "
" xmlns:tns='http://example.org' xmlns:wsa='http://schemas.xmlsoap.org/ws/2004/08/addressing' "
" xmlns:wsp='http://schemas.xmlsoap.org/ws/2004/09/policy' "
" xmlns:wsap='http://schemas.xmlsoap.org/ws/2004/08/addressing/policy' "
" xmlns:xsd='http://www.w3.org/2001/XMLSchema' "
" xmlns:msc='http://schemas.microsoft.com/ws/2005/12/wsdl/contract' "
" xmlns:wsaw='http://www.w3.org/2006/05/addressing/wsdl' "
" xmlns:soap12='http://schemas.xmlsoap.org/wsdl/soap12/' xmlns:wsa10='http://www.w3.org/2005/08/addressing' "
" xmlns:wsx='http://schemas.xmlsoap.org/ws/2004/09/mex' xmlns:wsdl='http://schemas.xmlsoap.org/wsdl/' "
" targetNamespace='http://example.org'>"
" <wsp:Policy wsu:Id='NetTcpBinding_HelloService_policy'>"
" <wsp:ExactlyOne>"
" <wsp:All>"
" <msb:BinaryEncoding xmlns:msb='http://schemas.microsoft.com/ws/06/2004/mspolicy/netbinary1'/>"
" <wsaw:UsingAddressing/>"
" </wsp:All>"
" </wsp:ExactlyOne>"
" </wsp:Policy>"
" <wsdl:types>"
" <xsd:schema targetNamespace='http://example.org/Imports'>"
" <xsd:import namespace='http://example.org' />"
" </xsd:schema>"
" </wsdl:types>"
" <wsdl:message name='PurchaseOrder'>"
" <wsdl:part name='parameters' element='tns:PurchaseOrderType'/>"
" </wsdl:message>"
" <wsdl:message name='OrderConfirmation'>"
" <wsdl:part name='parameters' element='tns:OrderConfirmationType'/>"
" </wsdl:message>"
" <wsdl:message name='GetOrderStatus'>"
" <wsdl:part name='parameters' element='tns:GetOrderStatusType'/>"
" </wsdl:message>"
" <wsdl:message name='GetOrderStatusResponse'>"
" <wsdl:part name='parameters' element='tns:GetOrderStatusResponseType'/>"
" </wsdl:message>"
" <wsdl:portType name='IPurchaseOrder'>"
" <wsdl:operation name='Order'>"
" <wsdl:input message='tns:PurchaseOrder' wsaw:Action='http://example.org/purchaseorder'/>"
" <wsdl:output message='tns:OrderConfirmation' wsaw:Action='http://example.org/orderconfirmation'/>"
" </wsdl:operation>"
" <wsdl:operation name='OrderStatus'>"
" <wsdl:input message='tns:GetOrderStatus' wsaw:Action='http://example.org/getorderstatus'/>"
" <wsdl:output message='tns:GetOrderStatusResponse' wsaw:Action='http://example.org/getorderstatusresponse'/>"
" </wsdl:operation>"
" </wsdl:portType>"
" <wsdl:binding name='PurchaseOrderBinding' type='tns:IPurchaseOrder'>"
" <wsp:PolicyReference URI='#NetTcpBinding_HelloService_policy'/>"
" <soap12:binding transport='http://schemas.microsoft.com/soap/tcp'/>"
" <wsdl:operation name='Order'>"
" <soap12:operation soapAction='http://example.org/purchaseorder' style='document'/>"
" <wsdl:input>"
" <soap12:body use='literal'/>"
" </wsdl:input>"
" <wsdl:output>"
" <soap12:body use='literal'/>"
" </wsdl:output>"
" </wsdl:operation>"
" <wsdl:operation name='OrderStatus'>"
" <soap12:operation soapAction='http://example.org/getorderstatus' style='document'/>"
" <wsdl:input>"
" <soap12:body use='literal'/>"
" </wsdl:input>"
" <wsdl:output>"
" <soap12:body use='literal'/>"
" </wsdl:output>"
" </wsdl:operation>"
" </wsdl:binding>"
"</wsdl:definitions>"
);
static const WS_XML_STRING xsd = WS_XML_STRING_VALUE(
"<xsd:schema xmlns:tns='http://example.org'"
"elementFormDefault='qualified' "
"targetNamespace='http://example.org' "
"xmlns:xsd='http://www.w3.org/2001/XMLSchema'>"
"<xsd:element name='PurchaseOrderType'>"
"<xsd:complexType>"
"<xsd:sequence>"
"<xsd:element minOccurs='0' name='quantity' type='xsd:int'/>"
"<xsd:element minOccurs='0' name='productName' type='xsd:string'/>"
"</xsd:sequence>"
"</xsd:complexType>"
"</xsd:element>"
"<xsd:element name='OrderConfirmationType'>"
"<xsd:complexType>"
"<xsd:sequence>"
"<xsd:element minOccurs='0' name='orderID' type='xsd:unsignedInt'/>"
"<xsd:element minOccurs='0' name='expectedShipDate' type='xsd:string'/>"
"</xsd:sequence>"
"</xsd:complexType>"
"</xsd:element>"
"<xsd:element name='GetOrderStatusType'>"
"<xsd:complexType>"
"<xsd:sequence>"
"<xsd:element minOccurs='0' name='orderID' type='xsd:unsignedInt'/>"
"</xsd:sequence>"
"</xsd:complexType>"
"</xsd:element>"
"<xsd:element name='GetOrderStatusResponseType'>"
"<xsd:complexType>"
"<xsd:sequence>"
"<xsd:element minOccurs='0' name='orderID' type='xsd:unsignedInt'/>"
"<xsd:element minOccurs='0' name='status' type='xsd:string'/>"
"</xsd:sequence>"
"</xsd:complexType>"
"</xsd:element>"
"</xsd:schema>"
);
static const WS_STRING wsdlDocumentName = WS_STRING_VALUE(L"wsdl");
static const WS_STRING xsdDocumentName = WS_STRING_VALUE(L"xsd");
static const WS_SERVICE_METADATA_DOCUMENT wsdlDocument =
{
(WS_XML_STRING*)&wsdl,
(WS_STRING*)&wsdlDocumentName
};
static const WS_SERVICE_METADATA_DOCUMENT xsdDocument =
{
(WS_XML_STRING*)&xsd,
(WS_STRING*)&xsdDocumentName
};
static const WS_SERVICE_METADATA_DOCUMENT* metadataDocuments[] =
{
&wsdlDocument,
&xsdDocument
};
HRESULT CALLBACK PurchaseOrderImpl(
const WS_OPERATION_CONTEXT* context,
int quantity,
WS_STRING productName,
unsigned int* orderID,
WS_STRING* expectedShipDate,
const WS_ASYNC_CONTEXT* asyncContext,
WS_ERROR* error)
{
UNREFERENCED_PARAMETER(asyncContext);
WS_HEAP* heap = NULL;
HRESULT hr = NOERROR;
wprintf(L"%ld, %.*s\n",
quantity,
productName.length,
productName.chars);
fflush(stdout);
hr = WsGetOperationContextProperty(context, WS_OPERATION_CONTEXT_PROPERTY_HEAP, &heap, sizeof(heap), error);
if (FAILED(hr))
{
return hr;
}
hr = WsAlloc(heap, sizeof(ExpectedShipDate), (void**)&expectedShipDate->chars, error);
if (FAILED(hr))
{
return hr;
}
hr = StringCbCopyW(expectedShipDate->chars, sizeof(ExpectedShipDate), ExpectedShipDate);
if (FAILED(hr))
{
return hr;
}
*orderID = 123;
expectedShipDate->length = (ULONG)wcslen(ExpectedShipDate);
return NOERROR;
}
HRESULT CALLBACK GetOrderStatusImpl(
const WS_OPERATION_CONTEXT* context,
unsigned int* orderID,
WS_STRING* status,
const WS_ASYNC_CONTEXT* asyncContext,
WS_ERROR* error)
{
UNREFERENCED_PARAMETER(asyncContext);
WS_HEAP* heap = NULL;
HRESULT hr = NOERROR;
*orderID = *orderID;
hr = WsGetOperationContextProperty(context, WS_OPERATION_CONTEXT_PROPERTY_HEAP, &heap, sizeof(heap), error);
if (FAILED(hr))
{
return hr;
}
hr = WsAlloc(heap, sizeof(OrderStatusString), (void**)&status->chars, error);
if (FAILED(hr))
{
return hr;
}
hr = StringCbCopyW(status->chars, sizeof(OrderStatusString), OrderStatusString);
if (FAILED(hr))
{
return hr;
}
status->length = (ULONG)wcslen(OrderStatusString);
return NOERROR;
}
ULONG numberOfSession = 0;
HRESULT CALLBACK CloseChannelCallback(
__in const WS_OPERATION_CONTEXT* context,
__in const WS_ASYNC_CONTEXT* asyncContext)
{
UNREFERENCED_PARAMETER(context);
UNREFERENCED_PARAMETER(asyncContext);
if (InterlockedIncrement(&numberOfSession) == 2)
{
SetEvent(closeServer);
}
return NOERROR;
}
static const PurchaseOrderBindingFunctionTable purchaseOrderFunctions = {PurchaseOrderImpl, GetOrderStatusImpl};
// Method contract for the service
static const WS_SERVICE_CONTRACT purchaseOrderContract =
{
&PurchaseOrder_wsdl.contracts.PurchaseOrderBinding, // comes from the generated header.
NULL, // for not specifying the default contract
&purchaseOrderFunctions // specified by the user
};
// Main entry point
int __cdecl wmain(int argc, __in_ecount(argc) wchar_t **argv)
{
UNREFERENCED_PARAMETER(argc);
UNREFERENCED_PARAMETER(argv);
HRESULT hr = NOERROR;
WS_SERVICE_HOST* host = NULL;
WS_SERVICE_ENDPOINT serviceEndpoint = {0};
const WS_SERVICE_ENDPOINT* serviceEndpoints[1];
serviceEndpoints[0] = &serviceEndpoint;
WS_ERROR* error = NULL;
HANDLE serverStartedEvent = NULL;
WS_SERVICE_PROPERTY serviceProperties[1];
WS_SERVICE_METADATA serviceMetadata = {0};
WS_SERVICE_ENDPOINT_PROPERTY serviceEndpointProperties[4];
WS_SERVICE_PROPERTY_CLOSE_CALLBACK closeCallbackProperty = {CloseChannelCallback};
WS_SERVICE_ENDPOINT_METADATA endpointMetadata = {0};
WS_METADATA_EXCHANGE_TYPE metadataExchangeType = WS_METADATA_EXCHANGE_TYPE_MEX;
// Configure Port on the endpoint for Mex
endpointMetadata.portName = &portName;
endpointMetadata.bindingName = &bindingName;
endpointMetadata.bindingNs = &bindingNs;
serviceEndpointProperties[0].id = WS_SERVICE_ENDPOINT_PROPERTY_CLOSE_CHANNEL_CALLBACK;
serviceEndpointProperties[0].value = &closeCallbackProperty;
serviceEndpointProperties[0].valueSize = sizeof(closeCallbackProperty);
// Specifying Port on the endpoint.
serviceEndpointProperties[1].id = WS_SERVICE_ENDPOINT_PROPERTY_METADATA;
serviceEndpointProperties[1].value = &endpointMetadata;
serviceEndpointProperties[1].valueSize = sizeof(endpointMetadata);
// Marking the endpoint to service WS-MetadataExchnage Requests
serviceEndpointProperties[2].id = WS_SERVICE_ENDPOINT_PROPERTY_METADATA_EXCHANGE_TYPE;
serviceEndpointProperties[2].value = &metadataExchangeType;
serviceEndpointProperties[2].valueSize = sizeof(metadataExchangeType);
WS_STRING mexPrefix = WS_STRING_VALUE(L"mex");
// Marking the endpoint to service WS-MetadataExchnage Requests
serviceEndpointProperties[3].id = WS_SERVICE_ENDPOINT_PROPERTY_METADATA_EXCHANGE_URL_SUFFIX;
serviceEndpointProperties[3].value = &mexPrefix;
serviceEndpointProperties[3].valueSize = sizeof(mexPrefix);
serviceEndpoint.address.url.chars = L"net.tcp://localhost/example"; // address given as uri
serviceEndpoint.address.url.length = (ULONG)wcslen(serviceEndpoint.address.url.chars);
serviceEndpoint.channelBinding = WS_TCP_CHANNEL_BINDING; // channel binding for the endpoint
serviceEndpoint.channelType = WS_CHANNEL_TYPE_DUPLEX_SESSION; // the channel type
serviceEndpoint.contract = (WS_SERVICE_CONTRACT*)&purchaseOrderContract; // the contract
serviceEndpoint.properties = serviceEndpointProperties;
serviceEndpoint.propertyCount = WsCountOf(serviceEndpointProperties);
// Specifying WSDL document
serviceMetadata.documentCount = WsCountOf(metadataDocuments);
serviceMetadata.documents = (WS_SERVICE_METADATA_DOCUMENT**) metadataDocuments;
// Initializing name of the service
serviceMetadata.serviceName = &serviceName;
// Note that this should concide be the target namespace of the wsdl document
serviceMetadata.serviceNs = &serviceNamespace;
// Specifying metadata document
serviceProperties[0].id = WS_SERVICE_PROPERTY_METADATA;
serviceProperties[0].value = &serviceMetadata;
serviceProperties[0].valueSize = sizeof(serviceMetadata);
// Create an error object for storing rich error information
hr = WsCreateError(
NULL,
0,
&error);
if (FAILED(hr))
{
goto Exit;
}
// Create Event object for closing the server
closeServer = CreateEvent(
NULL,
TRUE,
FALSE,
NULL);
if (closeServer == NULL)
{
hr = HRESULT_FROM_WIN32(GetLastError());
goto Exit;
}
// Creating a service host
hr = WsCreateServiceHost(
serviceEndpoints,
1,
serviceProperties,
WsCountOf(serviceProperties),
&host,
error);
if (FAILED(hr))
{
goto Exit;
}
// WsOpenServiceHost to start the listeners in the service host
hr = WsOpenServiceHost(
host,
NULL,
error);
if (FAILED(hr))
{
goto Exit;
}
// Create an event to synchronize the client and server processes.
serverStartedEvent = CreateEventW(
NULL,
TRUE,
FALSE,
L"WebServicesExampleServerStartedEvent");
if (NULL == serverStartedEvent)
{
wprintf(
L"Failed to create the client-server synchronization event (errorCode=0x%lx).\n",
GetLastError());
hr = HRESULT_FROM_WIN32(GetLastError());
goto Exit;
}
// Server is started, set the event to signal the clients.
if (!SetEvent(
serverStartedEvent))
{
wprintf(
L"Failed to set the client-server synchronization event (errorCode=0x%lx).\n",
GetLastError());
hr = HRESULT_FROM_WIN32(GetLastError());
goto Exit;
}
WaitForSingleObject(closeServer, INFINITE);
// Close the service host
hr = WsCloseServiceHost(host, NULL, error);
if (FAILED(hr))
{
goto Exit;
}
Exit:
if (FAILED(hr))
{
// Print out the error
PrintError(hr, error);
}
fflush(
stdout);
if (host != NULL)
{
WsFreeServiceHost(host);
}
if (NULL != serverStartedEvent)
{
CloseHandle(serverStartedEvent);
}
if (error != NULL)
{
WsFreeError(error);
}
if (closeServer != NULL)
{
CloseHandle(closeServer);
}
fflush(stdout);
return SUCCEEDED(hr) ? 0 : -1;
}
PurchaseOrder.wsdl
<wsdl:definitions
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:tns="http://example.org"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl"
xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
targetNamespace="http://example.org">
<wsdl:types>
<xsd:schema targetNamespace="http://example.org" elementFormDefault="qualified">
<xsd:element name="PurchaseOrderType">
<xsd:complexType>
<xsd:sequence>
<xsd:element minOccurs="0" name="quantity" type="xsd:int"/>
<xsd:element minOccurs="0" name="productName" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="OrderConfirmationType">
<xsd:complexType>
<xsd:sequence>
<xsd:element minOccurs="0" name="orderID" type="xsd:unsignedInt"/>
<xsd:element minOccurs="0" name="expectedShipDate" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="GetOrderStatusType">
<xsd:complexType>
<xsd:sequence>
<xsd:element minOccurs="0" name="orderID" type="xsd:unsignedInt"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="GetOrderStatusResponseType">
<xsd:complexType>
<xsd:sequence>
<xsd:element minOccurs="0" name="orderID" type="xsd:unsignedInt"/>
<xsd:element minOccurs="0" name="status" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="OrderNotFoundFaultType">
<xsd:complexType>
<xsd:sequence>
<xsd:element minOccurs="0" name="orderID" type="xsd:unsignedInt"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
</wsdl:types>
<wsdl:message name="PurchaseOrder">
<wsdl:part name="parameters" element="tns:PurchaseOrderType"/>
</wsdl:message>
<wsdl:message name="OrderConfirmation">
<wsdl:part name="parameters" element="tns:OrderConfirmationType"/>
</wsdl:message>
<wsdl:message name="GetOrderStatus">
<wsdl:part name="parameters" element="tns:GetOrderStatusType"/>
</wsdl:message>
<wsdl:message name="GetOrderStatusResponse">
<wsdl:part name="parameters" element="tns:GetOrderStatusResponseType"/>
</wsdl:message>
<wsdl:message name="OrderNotFoundFault">
<wsdl:part name="parameters" element="tns:OrderNotFoundFaultType"/>
</wsdl:message>
<wsdl:portType name="IPurchaseOrder">
<wsdl:operation name="Order">
<wsdl:input message="tns:PurchaseOrder" wsaw:Action="http://example.org/purchaseorder"/>
<wsdl:output message="tns:OrderConfirmation" wsaw:Action="http://example.org/orderconfirmation"/>
</wsdl:operation>
<wsdl:operation name="OrderStatus">
<wsdl:input message="tns:GetOrderStatus" wsaw:Action="http://example.org/getorderstatus"/>
<wsdl:output message="tns:GetOrderStatusResponse" wsaw:Action="http://example.org/getorderstatusresponse"/>
<wsdl:fault name="OrderNotFound" message="tns:OrderNotFoundFault" wsaw:Action="http://example.org/ordernotfound"/>
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="PurchaseOrderBinding" type="tns:IPurchaseOrder">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="Order">
<soap:operation soapAction="http://example.org/purchaseorder" style="document"/>
<wsdl:input>
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output>
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="OrderStatus">
<soap:operation soapAction="http://example.org/getorderstatus" style="document"/>
<wsdl:input>
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output>
<soap:body use="literal"/>
</wsdl:output>
<wsdl:fault name="OrderNotFound">
<soap:body use="literal"/>
</wsdl:fault>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="PurchaseOrderService">
<wsdl:port name="IPurchaseOrder" binding="tns:PurchaseOrderBinding">
<soap:address location="http://example.org/IPurchaseOrder"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
Makefile
!include <Win32.Mak>
EXTRA_LIBS = WebServices.lib rpcrt4.lib Iphlpapi.lib
all: $(OUTDIR) $(OUTDIR)\WsMexService.exe
"$(OUTDIR)" :
if not exist "$(OUTDIR)/$(NULL)" mkdir "$(OUTDIR)"
$(OUTDIR)\PurchaseOrder.wsdl.c: PurchaseOrder.wsdl
Wsutil.exe /wsdl:PurchaseOrder.wsdl /string:WS_STRING /out:$(OUTDIR)
$(OUTDIR)\PurchaseOrder.wsdl.obj: $(OUTDIR)\PurchaseOrder.wsdl.c
$(cc) $(cdebug) $(cflags) $(cvarsmt) /WX -I$(OUTDIR) /Fo"$(OUTDIR)\\" /Fd"$(OUTDIR)\\" $(OUTDIR)\PurchaseOrder.wsdl.c
$(OUTDIR)\MexService.obj: MexService.cpp $(OUTDIR)\PurchaseOrder.wsdl.c
$(cc) $(cdebug) $(cflags) $(cvarsmt) /WX -I$(OUTDIR) /Fo"$(OUTDIR)\\" /Fd"$(OUTDIR)\\" MexService.cpp
$(OUTDIR)\WsMexService.exe: $(OUTDIR)\MexService.obj $(OUTDIR)\PurchaseOrder.wsdl.obj
$(link) $(ldebug) $(conlflags) $(conlibsmt) $(EXTRA_LIBS) -out:$(OUTDIR)\WsMexService.exe $(OUTDIR)\MexService.obj $(OUTDIR)\PurchaseOrder.wsdl.obj /PDB:$(OUTDIR)\WsMexService.PDB
clean:
$(CLEANUP)
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