ReadWriteXmlExample
This example writes XML to an XML buffer, and then reads it back out.
ReadWriteXml.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 "PurchaseOrder.wsdl.h"
struct PurchaseOrderDictionary
{
WS_XML_DICTIONARY dictionary;
WS_XML_STRING quantity;
WS_XML_STRING productName;
WS_XML_STRING purchaseOrderType;
WS_XML_STRING purchaseOrderNamespace;
};
static PurchaseOrderDictionary purchaseOrderDictionary =
{
{
{ 0x89d3da8b, 0xec46, 0x4fe8, { 0x9a, 0xb4, 0x48, 0x62, 0xb2, 0x69, 0x71, 0x8a } },
&purchaseOrderDictionary.quantity,
4,
TRUE
},
WS_XML_STRING_DICTIONARY_VALUE("quantity", &purchaseOrderDictionary.dictionary, 0),
WS_XML_STRING_DICTIONARY_VALUE("productName", &purchaseOrderDictionary.dictionary, 1),
WS_XML_STRING_DICTIONARY_VALUE("PurchaseOrderType", &purchaseOrderDictionary.dictionary, 2),
WS_XML_STRING_DICTIONARY_VALUE("http://example.com", &purchaseOrderDictionary.dictionary, 3),
};
// 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);
}
}
// Main entry point
int __cdecl wmain(int argc, __in_ecount(argc) wchar_t **argv)
{
HRESULT hr = NOERROR;
WS_ERROR* error = NULL;
WS_HEAP* heap = NULL;
WS_XML_BUFFER* xmlBuffer = NULL;
WS_XML_WRITER* xmlWriter = NULL;
WS_XML_READER* xmlReader = NULL;
WS_STRING productName = WS_STRING_VALUE(L"Pencil");
// Command line parameter specifies whether to use typed or untyped api
BOOL typed;
if (argc == 2)
{
wchar_t* arg = argv[1];
if (wcscmp(arg, L"typed") == 0)
{
typed = TRUE;
}
else if (wcscmp(arg, L"untyped") == 0)
{
typed = FALSE;
}
else
{
wprintf(L"Invalid command line argument '%s'\n", arg);
return 1;
}
}
else
{
wprintf(L"usage : WsReadWriteXml.exe [typed|untyped]\n");
return 1;
}
// Create an error object for storing rich error information
hr = WsCreateError(
NULL,
0,
&error);
if (FAILED(hr))
{
goto Exit;
}
// Create a heap to store deserialized data
hr = WsCreateHeap(
/*maxSize*/ 2048,
/*trimSize*/ 512,
NULL,
0,
&heap,
error);
if (FAILED(hr))
{
goto Exit;
}
// Create an XML writer
hr = WsCreateWriter(
NULL,
0,
&xmlWriter,
error);
if (FAILED(hr))
{
goto Exit;
}
// Create an XML buffer on the specified heap
hr = WsCreateXmlBuffer(
heap,
NULL,
0,
&xmlBuffer,
error);
if (FAILED(hr))
{
goto Exit;
}
// Set the writer to output to the XML buffer
hr = WsSetOutputToBuffer(
xmlWriter,
xmlBuffer,
NULL,
0,
error);
if (FAILED(hr))
{
goto Exit;
}
// Write xml into the buffer
if (typed)
{
// Initialize body data
_PurchaseOrderType purchaseOrder;
purchaseOrder.quantity = 1;
purchaseOrder.productName = productName;
// Write purchase order
hr = WsWriteElement(
xmlWriter,
&PurchaseOrder_wsdl.globalElements.PurchaseOrderType,
WS_WRITE_REQUIRED_VALUE,
&purchaseOrder,
sizeof(purchaseOrder),
error);
if (FAILED(hr))
{
goto Exit;
}
}
else
{
// Write purchase order start element
hr = WsWriteStartElement(xmlWriter, NULL, &purchaseOrderDictionary.purchaseOrderType, &purchaseOrderDictionary.purchaseOrderNamespace, error);
if (FAILED(hr))
{
goto Exit;
}
// Write quantity element
int quantity = 1;
hr = WsWriteStartElement(xmlWriter, NULL, &purchaseOrderDictionary.quantity, &purchaseOrderDictionary.purchaseOrderNamespace, error);
if (FAILED(hr))
{
goto Exit;
}
hr = WsWriteValue(xmlWriter, WS_INT32_VALUE_TYPE, &quantity, sizeof(quantity), error);
if (FAILED(hr))
{
goto Exit;
}
hr = WsWriteEndElement(xmlWriter, error);
if (FAILED(hr))
{
goto Exit;
}
// Write product name start element
hr = WsWriteStartElement(xmlWriter, NULL, &purchaseOrderDictionary.productName, &purchaseOrderDictionary.purchaseOrderNamespace, error);
if (FAILED(hr))
{
goto Exit;
}
// Write product name
hr = WsWriteChars(xmlWriter, productName.chars, productName.length, error);
if (FAILED(hr))
{
goto Exit;
}
// Write product name end element
hr = WsWriteEndElement(xmlWriter, error);
if (FAILED(hr))
{
goto Exit;
}
// Write purchase order end element
hr = WsWriteEndElement(xmlWriter, error);
if (FAILED(hr))
{
goto Exit;
}
}
// Flush writer so all XML content is put in the buffer
hr = WsFlushWriter(xmlWriter, 0, NULL, error);
if (FAILED(hr))
{
goto Exit;
}
// Create an XML reader
hr = WsCreateReader(NULL, 0, &xmlReader, error);
if (FAILED(hr))
{
goto Exit;
}
// Set the reader input to current position of XML buffer
hr = WsSetInputToBuffer(xmlReader, xmlBuffer, NULL, 0, error);
if (FAILED(hr))
{
goto Exit;
}
if (typed)
{
// Read purchase order into heap
_PurchaseOrderType* purchaseOrder;
hr = WsReadElement(xmlReader, &PurchaseOrder_wsdl.globalElements.PurchaseOrderType,
WS_READ_REQUIRED_POINTER, heap, &purchaseOrder, sizeof(purchaseOrder), error);
if (FAILED(hr))
{
goto Exit;
}
// Print out purchase order contents
wprintf(L"%ld, %.*s\n",
purchaseOrder->quantity,
purchaseOrder->productName.length,
purchaseOrder->productName.chars);
// Done with purchase order
WsResetHeap(heap, NULL);
}
else
{
// Read to purchase order element
hr = WsReadToStartElement(xmlReader, &purchaseOrderDictionary.purchaseOrderType, &purchaseOrderDictionary.purchaseOrderNamespace, NULL, error);
if (FAILED(hr))
{
goto Exit;
}
// Read purchase order element
hr = WsReadStartElement(xmlReader, error);
if (FAILED(hr))
{
goto Exit;
}
// Read to quantity element
hr = WsReadToStartElement(xmlReader, &purchaseOrderDictionary.quantity, &purchaseOrderDictionary.purchaseOrderNamespace, NULL, error);
if (FAILED(hr))
{
goto Exit;
}
// Read quantity element as integer
long quantity;
hr = WsReadStartElement(xmlReader, error);
if (FAILED(hr))
{
goto Exit;
}
hr = WsReadValue(xmlReader, WS_INT32_VALUE_TYPE, &quantity, sizeof(quantity), error);
if (FAILED(hr))
{
goto Exit;
}
hr = WsReadEndElement(xmlReader, error);
if (FAILED(hr))
{
goto Exit;
}
// Read to product name element
hr = WsReadToStartElement(xmlReader, &purchaseOrderDictionary.productName, &purchaseOrderDictionary.purchaseOrderNamespace, NULL, error);
if (FAILED(hr))
{
goto Exit;
}
// Read product name start element
hr = WsReadStartElement(xmlReader, error);
if (FAILED(hr))
{
goto Exit;
}
// Read product name into buffer
WCHAR productName[100];
ULONG length = 0;
ULONG available = WsCountOf(productName) - 1; // leave space for terminating '\0'
for (;;)
{
// Read next block of chars
ULONG charsRead;
hr = WsReadChars(xmlReader, &productName[length], available, &charsRead, error);
if (FAILED(hr))
{
goto Exit;
}
if (charsRead == 0)
{
// No more chars
break;
}
length += charsRead;
available -= charsRead;
if (available == 0)
{
hr = WS_E_INVALID_FORMAT;
goto Exit;
}
}
// Zero terminate product name string
productName[length] = L'\0';
// Print out purchase order contents
wprintf(L"%ld, %s\n",
quantity,
productName);
// Read product name end element
hr = WsReadEndElement(xmlReader, error);
if (FAILED(hr))
{
goto Exit;
}
// Read purchase order end element
hr = WsReadEndElement(xmlReader, error);
if (FAILED(hr))
{
goto Exit;
}
}
Exit:
if (FAILED(hr))
{
// Print out the error
PrintError(hr, error);
}
fflush(
stdout);
if (heap != NULL)
{
WsFreeHeap(heap);
}
if (xmlReader != NULL)
{
WsFreeReader(xmlReader);
}
if (xmlWriter != NULL)
{
WsFreeWriter(xmlWriter);
}
if (error != NULL)
{
WsFreeError(error);
}
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
#------------------------------------------------------------
# Copyright (C) Microsoft. All rights reserved.
#------------------------------------------------------------
!include <Win32.Mak>
EXTRA_LIBS = WebServices.lib rpcrt4.lib Iphlpapi.lib
all: $(OUTDIR) $(OUTDIR)\WsReadWriteXml.exe
"$(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)\ReadWriteXml.obj: ReadWriteXml.cpp $(OUTDIR)\PurchaseOrder.wsdl.c
$(cc) $(cdebug) $(cflags) $(cvarsmt) /WX -I$(OUTDIR) /Fo"$(OUTDIR)\\" /Fd"$(OUTDIR)\\" ReadWriteXml.cpp
$(OUTDIR)\WsReadWriteXml.exe: $(OUTDIR)\ReadWriteXml.obj $(OUTDIR)\PurchaseOrder.wsdl.obj
$(link) $(ldebug) $(conlflags) $(conlibsmt) $(EXTRA_LIBS) -out:$(OUTDIR)\WsReadWriteXml.exe $(OUTDIR)\ReadWriteXml.obj $(OUTDIR)\PurchaseOrder.wsdl.obj /PDB:$(OUTDIR)\WsReadWriteXml.PDB
clean:
$(CLEANUP)
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