Importance of Fault contact in web service.

I have gone through some articles about the importance of fault contract in SOA.
I got this perception that fault contract is not only necessary for the client but it also more describe your service.

Fault contract is a very good approach to describe the possible error so , client will know in advance and safe to face any surprise behavior. Client can handle this exception and write his logic because he is well aware about, what will happen after anything wrong.
Now the question come how we can implement fault contract.
There could two (2) ways implement it.
1) specify it in wsdl document.
2) make your own exception.

Lets discuss one by one.
1) specify it in the wsdl
One of the best approach to define you contract first before writing any code, there is debate on code first vs. contract first approaches. Everyone accepts contract first approach is very detail and less prone to error approach. As the matter of fault contract we can define in code or contract both will resolve at the end in wsdl.
Advantage of this approach is:
"SOAP faults are message types that are included in the metadata for a service operation and therefore create a fault contract that clients can use to make their operation more robust or interactive. In addition, because SOAP faults are expressed to clients in XML form, it is a highly interoperable type system that clients on any SOAP platform can use, increasing the reach of your WCF application. "
This is excerpt of msdn article.
This is not a new concept to define fault contract wsdl specification has this leverage to define your faults inside wsdl document. For more …
Fault contract implementation in wsdl by IBM

2) Make your own exception
This is also good approach and specially when previously established who uses custom exception Scheme. Its good for them this scheme to use it without disturbing the whole application. It comes with its own cost also because Exception will be serialized in to SOAP request. Because the behavior is not defined at designed time

Error Message

Error Message

Ora error: "ORA-01036: illegal variable name/number"

when it happens remove @ character in your parameters Like this

< parameter>

< parameterName value="P_ERRORTOKENID"/>

< dbType value="String"/>

< size value="100"/>

< layout type="log4net.Layout.PatternLayout" value="%property{ErrorTokenId}"/>

<\parameter>

Hosting service on IIS

The requested content appears to be script and will not be served by the static file handler.

I have solve this issue by helping this article.

Hosting service on IIS: "http://www.byteblocks.com/post/2010/03/25/HTTP-Error-40417-Not-Found.aspx"

Hi,
I am working on integration project which mainly deals with two other system.
when this task comes to me I designed a question airs for other teams.In this development. I have learned some good points during integration analysis.
These points are under mentioned.
1) Always go through details analysis of front end application(which helps you to understand about system functionality)
2) System back office knowledge (It will help you to understand about the technical complexity which you will faced during integration,existing work-flow)
3) Existing system's deployment architecture so will be aware how you communicate with them.
I am also attaching my question air with this post,It will guide in you integration development.

Questions	Descriptions
System(Service Name)	GetApplicationStatus
Desciption	what is purpose of this webmethod
Nature of Interaction	Synch/Asynch
Response Time (Approx.)	response time of this service mthod
Transactional Integrity	How you ensure transactional integrity
Message Format	Xml string/DataObject....
Idempotent?	one dataset can entertain multiple time
Security Implementation	security mechnaism
Availability	Is it availabe 24/7
Change Management	what if you are releasing new version of Service then forward or back comptible
Proposed Scheduling	any downtime
Dependency	service is depened on any other service
Expected Messages Frequency	500 per day
Owner	responsible person of this service

Unable to cast object of type 'Oracle.DataAccess.Client.OracleConnection' to type 'System.Data.Common.DbConnection'.

for this problem just add this string in your hibernate configuration file
none
or for details refer to
http://stackoverflow.com/questions/1210037/error-with-nhibernate-2-1-and-oracle-10g-client

how to get file from resources

Hi,
Today I was busy in two issues
First one was something refactoring I have to deal with some objects and their property name
and object property will be called by name Like I want obj.property(string name).setvalue("")
Any how I achieved this by reflection. lemme me share code with u


private static void LoadPropertiesValues(object dataObject )
{
if(dataObject != null)
{
PropertyInfo[] properties = dataObject.GetType().GetProperties();
foreach (PropertyInfo objInfo in properties)
{
XmlNode xmlMapNode =
_xmlMappingDoc.SelectSingleNode("/parentElement/ChildName[@fieldname='" +
objInfo.Name + "']");
if (xmlMapNode != null && xmlMapNode.Attributes[1] != null &&
xmlMapNode.Attributes[1].Value != string.Empty)
{
string mapGroupName = xmlMapNode.Attributes[1].InnerText;
Mapping mapping = _dataMapperDao.GetMappingByCodeAndResidencyValue(mapGroupName,
dataObject.GetType().GetProperty(objInfo.Name).GetValue(dataObject,null).ToString());
if (mapping != null)
{
dataObject.GetType().GetProperty(objInfo.Name).SetValue(dataObject,mapping.code,null);
}
}

}
}
}

Second issue was access file from resources
Actually I have to load some values from xml file and then I have to take care about its path because in production Envoirnment I cann't guarantee that path will be same neither I can enforce it. It will be changed so I want to get rid of this issue I put this file inside resources, then I put little effort on accessing this file.

Assembly objAssembly = Assembly.GetAssembly(typeof (ClassName));
if(objAssembly!=null)
{
Stream stream = objAssembly.
GetManifestResourceStream("ParentApp.ApplicationName.FileName.xml");
if (stream != null)
{
var xmlTextReader = new XmlTextReader(stream);

_xmlMappingDoc.Load(xmlTextReader);

}
}
So, this is all about today :)

breakpoints connot be set in method or class with the debuggerstep through attribute just my code is enable

Today I face this problem I was unable to debug my code and I spent several hours to solve it.
I got this exception when I put debug point and it displays this message on runtime.
Anyhow I found two solution
[assembly:System.Diagnostics.Debuggable(true,true)] attribute at assembly level.
I declare this attribute in assemblyinfo.cs

second solution is I change my webservice project from website to web application and everything is going smoothly :) Happy!!