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Oracle SALT supports bi-directional data type mapping between WSDL messages and Tuxedo typed buffers. For each service invocation, GWWS server converts each message between Tuxedo typed buffer and SOAP message payload. SOAP message payload is the XML effective data encapsulated within the <soap:body> element. For more information, see Understanding Oracle SALT Message Conversion.For native Tuxedo services, each Tuxedo buffer type is described using an XML Schema in the SALT generated WSDL document. Tuxedo service request/response buffers are represented in regular XML format. For more information, see Tuxedo-to-XML Data Type Mapping for Tuxedo Services.For external Web services, each WSDL message is mapped as a Tuxedo FML32 buffer structure. A Tuxedo application invokes SALT proxy service using FML32 buffers as input/output. For more information see, XML-to-Tuxedo Data Type Mapping for External Web Services.Table 2‑1 compares an inbound message conversion process and an outbound message conversion process.
FBFR32 * request;
...
c_flag = ‘T’; /* Set True for boolean data */
Fadd32( request, flag, (char *)&c_flag, 0);
FBFR32 * request;
...
acc = 102377; /* Value should not exceed value scope of unsigned int*/
Fadd32( request, account, (char *)&acc, 0);
FLDLEN32 len;
char * buf;
buf = calloc( ... );
...
memcpy(buf, “...”, len); /* copy the original memory */
Fadd32( request, mem_snapshot, buf, len);
char date[32];
...
strcpy(date, “2007-06-04+8:00”); /* Set the date value correctly */
Fadd32( request, IssueDate, date, 0);Table 2‑9 lists the supported XML Schema User Defined Simple Data Type and the corresponding Tuxedo FML32 Field Data Type.
<xsd:simpleType name=”Alphabet”>
<xsd:restriction base=”xsd:string”>
<xsd:maxLength value=”1” />
<xsd:pattern value=”[A-Z]” />
</xsd:restriction>
</xsd:simpleType>
FBFR32 * request;
...
grade[0] = ‘A’; grade[1] = ‘\0’;
Fadd32( request, Grade, (char *)grade, 0);
<xsd:simpleType name=”namelist”>
<xsd:list itemType=”xsd:NMTOKEN”>
</xsd:simpleType>
char users[...];
char * mbpacked;
FLDLEN32 mbsize = 1024;
FBFR32 * request;
...
sprintf(users, “<n1:Users xmlns:n1=\”urn:sample.org\”>”);
for ( i = 0 ; i < 5 ; i++ ) {
strcat(users, user[i]);
strcat(users, “ “);
}
strcat(users, “</n1:Users>“);
...
mbpacked = malloc(mbsize);
/* prepare mbstring*/
Fmbpack32(“utf-8”, users, strlen(users), mbpacked, &mbsize, 0);
Fadd32( request, Users, mbpacked, mbsize);Table 2‑12 lists the WSDL message mapping rules defined by Oracle SALT.