/**
* SIF_Request
*/
public SIF_Ack SifRequest(IZone zone, Query query, String destinationId, String sifMsgId)
{
// Send SIF_Request...
SIF_Request msg = new SIF_Request();
// Find the maxmimum requested version and set the version of the message to lower
// if the version is currently higher than the highest requested version.
// In other words, if the Adk is initialized to 2.0, but the highest requested version
// is 1.5r1, set the message version to 1.5r1
SifVersion highestRequestVersion = SifVersion.SIF11;
if (query.ObjectType == InfraDTD.SIF_ZONESTATUS)
{
// This query will be satisfied by the ZIS. Use the ZIS compatibility
// version, which returns the highest version supported by the ZIS
// (Default to Adk.SIFVersion() if not specified in the config)
highestRequestVersion = ((ZoneImpl)zone).HighestEffectiveZISVersion;
msg.AddSIF_Version(new SIF_Version(highestRequestVersion));
}
else
{
SifVersion[] requestVersions = query.SifVersions;
if (requestVersions.Length > 0)
{
// If the Query has one or more SIFVersions set, use them,
// and also add [major].*
foreach (SifVersion version in requestVersions)
{
msg.AddSIF_Version(new SIF_Version(version));
if (version.CompareTo(highestRequestVersion) > 0)
{
highestRequestVersion = version;
}
}
}
else
{
highestRequestVersion = Adk.SifVersion;
if (highestRequestVersion.Major == 1)
{
msg.AddSIF_Version(new SIF_Version(highestRequestVersion));
}
else
{
// 2.0 and greater, request all data using
// [major].*, with 2.0r1 as the message version
// This allows for maximum compatibility will all 2.x providers
msg.AddSIF_Version(new SIF_Version(highestRequestVersion.Major + ".*"));
msg.SifVersion = SifVersion.GetEarliest(highestRequestVersion.Major);
}
}
}
AgentProperties zoneProperties = zone.Properties;
if (zoneProperties.OverrideSifMessageVersionForSifRequests != null)
{
//There is a property in Agent.cfg that can be used to override the message version from the
//default of 2.0r1 This is needed to pass the test harness for 2.3
msg.SifVersion = SifVersion.Parse(zoneProperties.OverrideSifMessageVersionForSifRequests);
}
else if (msg.SifVersion.CompareTo(highestRequestVersion) > 0)
{
// The current version of the SIF_Message is higher than the highest
// requested version. Back the version number of message down to match
msg.SifVersion = highestRequestVersion;
}
msg.SIF_MaxBufferSize = zone.Properties.MaxBufferSize;
SIF_Query sifQ = CreateSIF_Query(query, highestRequestVersion, zone);
msg.SIF_Query = sifQ;
SIF_Header msgHeader = msg.Header;
if (destinationId != null)
{
msgHeader.SIF_DestinationId = destinationId;
}
if (sifMsgId != null)
{
msgHeader.SIF_MsgId = sifMsgId;
}
// Set the SIF_Context
msgHeader.SIF_Contexts = new SIF_Contexts(
new SIF_Context(query.SifContext.Name));
return(((ZoneImpl)zone).Dispatcher.send(msg));
}
private void SetRequestPolicy( SIF_Request request, IZone zone )
{
SIF_Query query = request.SIF_Query;
if( query == null ) {
// SIF_ExtendedQuery and SIF_Example are not supported by ADK Policy yet
return;
}
//
// Object Request Policy
//
// Determine if there is policy in effect for this Query
//
String objectName = query.SIF_QueryObject.ObjectName;
ObjectRequestPolicy requestPolicy = fPolicyFactory.GetRequestPolicy( zone, objectName );
if( requestPolicy != null ){
//
// SIF_Request/SIF_Version policy
//
String requestVersions = requestPolicy.RequestVersion;
if( requestVersions != null ){
if( (Adk.Debug & AdkDebugFlags.Policy ) > 0 ){
zone.Log.Info( "POLICY: Setting SIF_Request/SIF_Version to " + requestVersions );
}
// Clear the list of SIF Versions
foreach( SIF_Version existingVersion in request.GetSIF_Versions() ){
request.RemoveChild( existingVersion );
}
// The version will be a comma-delimited list. Set each of these
// as SIF_Version elements, but also try to derive the most logical
// version element to set the SIF Message/@Version attribute to
// NOTE: Someone could theoretically set versions incorrectly, such
// as "1.1,1.5r1". Multiple SIF_Version elements are not supported in
// SIF 1.x, but we won't bother with validating incorrect settings. Policy
// is power in the configurator's hands to use or abuse.
String[] versions = requestVersions.Split( ',' );
String lowestVersion = versions[0];
foreach( String version in versions ){
String ver = version.Trim();
request.AddSIF_Version(new SIF_Version(ver));
if (lowestVersion.CompareTo(ver) > 0)
{
lowestVersion = ver;
}
}
// Determine how the SIF_Message/@Version should be set to
// * If the policy is set to a single version, use it
// * If a list, use the lowest
// * If *, ignore
// * if [major].*, use the lowest version supported
if( lowestVersion.Length > 0 ){
SifVersion newMsgVersion = null;
if( lowestVersion.EndsWith( "*" ) ){
try
{
// 2.*, requests go out with a message version of 2.0r1
int major = int.Parse( lowestVersion.Substring( 0, 1 ) );
newMsgVersion = SifVersion.GetEarliest( major );
} catch( FormatException iae ){
zone.Log.Warn(
"POLICY: Error parsing ObjectRequestPolicy version '" +
requestVersions + "' : " +
iae.Message, iae );
}
} else {
try
{
newMsgVersion = SifVersion.Parse( lowestVersion );
} catch( FormatException iae ){
zone.Log.Warn(
"POLICY: Error parsing ObjectRequestPolicy version '" +
requestVersions + "' : " +
iae.Message, iae );
}
}
if( newMsgVersion != null ){
if( (Adk.Debug & AdkDebugFlags.Policy ) > 0 ){
zone.Log.Info( "POLICY: Setting SIF_Messaage/@Version to " + newMsgVersion );
}
request.SifVersion = newMsgVersion;
}
}
}
//
// SIF_DestinationID policy
//
String requestSourceId = requestPolicy.RequestSourceId ;
if( requestSourceId != null ){
if( (Adk.Debug & AdkDebugFlags.Policy) > 0 ){
zone.Log.Info( "POLICY: Setting SIF_Request SIF_DestinationID to " + requestPolicy.RequestSourceId );
}
request.SIF_Header.SIF_DestinationId = requestSourceId;
}
}
}