/// <summary>
/// Get a list of enum-like classes containing Service Attribute Id definitions
/// for the type of the Service Class contained in the given Service Record.
/// </summary>
/// -
/// <returns>
/// An array of <see cref="T:System.Type"/> each of which is a enum-like class
/// which defines the set of Service Attribute IDs used by a particular
/// Service Class e.g. ObjectPushProfile.
/// An empty array will be returned if none of the Service Classes
/// are known, or the record contains no
/// <see cref="F:InTheHand.Net.Bluetooth.AttributeIds.UniversalAttributeId.ServiceClassIdList"/>
/// attribute, or it is invalid.
/// </returns>
/// -
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="record"/> is null.
/// </exception>
public Type[] GetAttributeIdEnumTypes(ServiceRecord record)
{
if (record == null) { throw new ArgumentNullException("record"); }
//
ServiceAttribute attr;
try {
attr = record.GetAttributeById(UniversalAttributeId.ServiceClassIdList);
} catch (
#if V1
ArgumentException
#else
System.Collections.Generic.KeyNotFoundException
#endif
ex) {
System.Diagnostics.Debug.Assert(ex.Message == ServiceRecord.ErrorMsgNoAttributeWithId);
goto InvalidRecord;
}
ServiceElement element = attr.Value;
if (element.ElementType != ElementType.ElementSequence) {
goto InvalidRecord;
}
ServiceElement[] idElements = element.GetValueAsElementArray();
//TODO ((GetServiceClassSpecificAttributeIdEnumDefiningType--foreach (ServiceElement curIdElem in idElements) {))
if (idElements.Length != 0) {
ServiceElement curIdElem = idElements[0];
Type enumType = GetAttributeIdEnumType(curIdElem);
if (enumType != null) {
return new Type[] { enumType };
}
}//else fall through...
// None-matched, or invalid attribute format etc.
InvalidRecord:
return new Type[0];
}
private static void SetRecordService(ServiceRecord m_record, Guid uuid128)
{
ServiceAttribute attr = m_record.GetAttributeById(UniversalAttributeId.ServiceClassIdList);
ServiceElement element = (ServiceElement)attr.Value.GetValueAsElementList()[0];
element.SetValue(uuid128);
}
private Guid GetRecordService(ServiceRecord m_record)
{
ServiceAttribute attr = m_record.GetAttributeById(UniversalAttributeId.ServiceClassIdList);
ServiceElement element = (ServiceElement)attr.Value.GetValueAsElementList()[0];
Guid uuid128 = (Guid)element.Value;
return(uuid128);
}
static ServiceElement GetChannelElement(ServiceRecord record, BluetoothProtocolDescriptorType proto)
{
if (!record.Contains(UniversalAttributeId.ProtocolDescriptorList))
{
goto NotFound;
}
ServiceAttribute attr = record.GetAttributeById(UniversalAttributeId.ProtocolDescriptorList);
#if !V1
bool?isSimpleRfcomm;
#else
object isSimpleRfcomm;
#endif
return(GetChannelElement(attr, proto, out isSimpleRfcomm));
NotFound:
return(null);
}
/// <summary>
/// Get a list of enum-like classes containing Service Attribute Id definitions
/// for the type of the Service Class contained in the given Service Record.
/// </summary>
/// -
/// <param name="record">A <see cref="T:InTheHand.Net.Bluetooth.ServiceRecord"/>
/// whose <see cref="F:InTheHand.Net.Bluetooth.AttributeIds.UniversalAttributeId.ServiceClassIdList"/>
/// element will be retrieved, and its Service Class Id will used
/// for the lookup.
/// </param>
/// -
/// <returns>
/// An array of <see cref="T:System.Type"/> each of which is a enum-like class
/// which defines the set of Service Attribute IDs used by a particular
/// Service Class e.g. ObjectPushProfile.
/// An empty array will be returned if none of the Service Classes
/// are known, or the record contains no
/// <see cref="F:InTheHand.Net.Bluetooth.AttributeIds.UniversalAttributeId.ServiceClassIdList"/>
/// attribute, or it is invalid.
/// <note>Currently only the first Service Class Id is looked-up.</note>
/// </returns>
/// -
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="record"/> is null.
/// </exception>
public Type[] GetAttributeIdEnumTypes(ServiceRecord record)
{
if (record == null)
{
throw new ArgumentNullException("record");
}
//
ServiceAttribute attr;
try {
attr = record.GetAttributeById(UniversalAttributeId.ServiceClassIdList);
} catch (
#if V1
ArgumentException
#else
System.Collections.Generic.KeyNotFoundException
#endif
ex) {
System.Diagnostics.Debug.Assert(ex.Message == ServiceRecord.ErrorMsgNoAttributeWithId);
goto InvalidRecord;
}
ServiceElement element = attr.Value;
if (element.ElementType != ElementType.ElementSequence)
{
goto InvalidRecord;
}
ServiceElement[] idElements = element.GetValueAsElementArray();
//TODO ((GetServiceClassSpecificAttributeIdEnumDefiningType--foreach (ServiceElement curIdElem in idElements) {))
if (idElements.Length != 0)
{
ServiceElement curIdElem = idElements[0];
Type enumType = GetAttributeIdEnumType(curIdElem);
if (enumType != null)
{
return(new Type[] { enumType });
}
}//else fall through...
// None-matched, or invalid attribute format etc.
InvalidRecord:
return(new Type[0]);
}
//--------------------------------------------------------------
/// <summary>
/// Reads the RFCOMM Channel Number element from the service record.
/// </summary>
/// <returns>The <see cref="T:InTheHand.Net.Bluetooth.ServiceElement"/>
/// holding the Channel Number.
/// or <see langword="null"/> if at the <see cref="F:InTheHand.Net.Bluetooth.AttributeIds.UniversalAttributeId.ProtocolDescriptorList"/>
/// attribute is missing or contains invalid elements.
/// </returns>
public static ServiceElement GetRfcommChannelElement(ServiceRecord record)
{
if (!record.Contains(UniversalAttributeId.ProtocolDescriptorList)) {
goto NotFound;
}
ServiceAttribute attr = record.GetAttributeById(UniversalAttributeId.ProtocolDescriptorList);
ServiceElement e0 = attr.Value;
if (e0.ElementType == ElementType.ElementAlternative) {
#if ! WinCE
Trace.WriteLine("Don't support ElementAlternative ProtocolDescriptorList values.");
#endif
goto NotFound;
} else if (e0.ElementType != ElementType.ElementSequence) {
#if ! WinCE
Trace.WriteLine("Bad ProtocolDescriptorList base element.");
#endif
goto NotFound;
}
IList_ServiceElement protoStack = e0.GetValueAsElementList();
IEnumerator_ServiceElement etor = protoStack.GetEnumerator();
ServiceElement layer;
IList_ServiceElement layerContent;
if (!etor.MoveNext()) {
#if ! WinCE
Trace.WriteLine("Protocol stack truncated before {0}.", "L2CAP");
#endif
goto NotFound;
}
layer = (ServiceElement)etor.Current; //cast here are for non-Generic version.
layerContent = layer.GetValueAsElementList();
if (((ServiceElement)layerContent[0]).GetValueAsUuid() != BluetoothService.L2CapProtocol) {
#if ! WinCE
Trace.WriteLine(String.Format(System.Globalization.CultureInfo.InvariantCulture,
"Bad protocol stack, layer {0} is not {1}.", 1, "L2CAP"));
#endif
goto NotFound;
}
//
if (!etor.MoveNext()) {
#if ! WinCE
Trace.WriteLine("Protocol stack truncated before {0}.", "RFCOMM");
#endif
goto NotFound;
}
layer = (ServiceElement)etor.Current;
layerContent = layer.GetValueAsElementList();
if (((ServiceElement)layerContent[0]).GetValueAsUuid() != BluetoothService.RFCommProtocol) {
#if ! WinCE
Trace.WriteLine(String.Format(System.Globalization.CultureInfo.InvariantCulture,
"Bad protocol stack, layer {0} is not {1}.", 2, "RFCOMM"));
#endif
goto NotFound;
}
//
if (layerContent.Count < 2) {
#if ! WinCE
Trace.WriteLine(String.Format(System.Globalization.CultureInfo.InvariantCulture,
"Bad protocol stack, layer {0} hasn't a second element.", 2));
#endif
goto NotFound;
}
ServiceElement channelElement = (ServiceElement)layerContent[1];
if (channelElement.ElementType != ElementType.UInt8) {
#if ! WinCE
Trace.WriteLine(String.Format(System.Globalization.CultureInfo.InvariantCulture,
"Bad protocol stack, layer {0} is not UInt8.", 2));
#endif
goto NotFound;
}
// Success
return channelElement;
NotFound:
return null;
}
private Guid GetRecordService(ServiceRecord m_record)
{
ServiceAttribute attr = m_record.GetAttributeById(UniversalAttributeId.ServiceClassIdList);
ServiceElement element = (ServiceElement)attr.Value.GetValueAsElementList()[0];
Guid uuid128 = (Guid)element.Value;
return uuid128;
}
private static void SetRecordService(ServiceRecord m_record, Guid uuid128)
{
ServiceAttribute attr = m_record.GetAttributeById(UniversalAttributeId.ServiceClassIdList);
ServiceElement element = (ServiceElement)attr.Value.GetValueAsElementList()[0];
element.SetValue(uuid128);
}