I published an orchestration in Biztalk as a webservice. Does anyone know how I can use XML serialization or something to load XML from a file and "convert" it to the messagetype the webservice expects? How do people usually use this webservices? I try to avoid using untyped messages since I use both XML and flatfile, and have read that it could mean trouble.
Well, I guess generally the idea of web services is that you add a web reference to them, which would generate a set of proxy classes you could use to interact with the web service.
You don't normally have to worry about serialising xml files to and from the web service formats, the generated code will do it for you.
If you do wish to, however, to work of XML, you could use .net serialisation to deserialise an xml file into the generated proxy type (as well as serialise any response you're getting).
Here's a basic example of how to deserialise xml into a class instance, you can then pass this instance into the method in the generated proxy.
System.Xml.Serialization.XmlSerializer xser = new System.Xml.Serialization.XmlSerializer(typeof(<generated request type here>));
xser.UnknownAttribute += new System.Xml.Serialization.XmlAttributeEventHandler(xser_UnknownAttribute);
xser.UnknownElement += new System.Xml.Serialization.XmlElementEventHandler(xser_UnknownElement);
xser.UnknownNode += new System.Xml.Serialization.XmlNodeEventHandler(xser_UnknownNode);
xser.UnreferencedObject += new System.Xml.Serialization.UnreferencedObjectEventHandler(xser_UnreferencedObject);
<generated request type here> request = (<generated request type here>)xser.Deserialize(<xml stream here>);
I hope that makes sense
You question is bit confusing. You started off with saying you published an orchestration as web service, but raised the question about consuming it.
If you are talking about published web service:
The web service generated by BizTalk Web service Wizard is not different from a web service you would have written in .NET. Based on the message type you orchestration is expecting and how your structured the operation in the wizard. The Wizard would have auto generated a webservice for you with WSDL and schemas (there will be some BizTalk specific bits inside, but you don't need to worry about the implementation).
You consumers (independant of platform) should be able to consume that web service without any major issues.
If you are trying to consume a web service from Orchestration
Have a look at this paper http://msdn.microsoft.com/en-us/library/ms935219(BTS.10).aspx
Related
When I'm tasked with dealing with connecting to web services, I've always found the appropriate .wsdl file, ran WSDL2Java.bat, and incorporated those Java files into my Java project. Then I've successfully completed my project that needs to access data via web services.
My question is, are there other ways to use the .wsdl file to access web services? ( I'm not talking about creating classes for different languages ). For example, I have documentation describing one company's web services. The examples it shows in it's documentation are essentially dumps of HTTP Post requests. Is this "web services"? It looks to me that the .wsdl file is merely used as a reference to make the correct Post requests. I could just make text templates and plug in the right values, and send them out, right? I really feel like I'm missing something here.
Am I a web-services illiterati?
To call a SOAP web service over HTTP you just need to send it a properly formatted XML with a POST request. That's it! How you build the request is irrelevant as long as it conforms to the SOAP protocol and the payload corresponds to a proper web service operation that exists on the particular web service you are calling.
But how do you know how to build the proper payload?
The web service needs to have some sort of documentation otherwise you don't know what to put inside the XML. The documentation can be whatever you like as long as people can use it to build valid requests. WSDL fits this criteria but has an extra advantage: you can feed it to a tool that generates code. That code knows how to handle all the SOAP details and exposes objects and methods to your application.
What would you prefer? Generating code from the WSDL in a few minutes and be able to call whatever operation on the web service or, build the requests and parse the responses by hand and spend hours or days doing so. What would your boss or company prefer? :)
It looks to me that the .wsdl file is merely used as a reference to make the correct Post requests. I could just make text templates and plug in the right values, and send them out, right?
Right! But you also have to consider your productivity as an employee in one case as opposed to the other.
I have a web service containing a method with object type data. When I want to test this method using the webservice api it suggests like,
The test form is only available for methods with primitive types as parameters.
So, I am not able to test the service by passing object type data.
Is there any way simpler to test such method ? Any links, blogs etc ?
I am using .NET technology.
One way is to write an integration test that points to your web service and sends a request to it.
It depends on the technology you're using, but in the .Net world you would generate a proxy and call methods on it from the test.
The is an add-in for firefox than can be useful for you.
HTTP Resource Test
You can tailor your own http request.
Just need to know how your object type data is XML serialized and create a XML SOAP request.
Am new to web services. I have a spring bean in which i have used Transactional annotation for DB operations.
Now I need to expose one of the method in the bean as a service.
The method parameters are Hashmap and a POJO (like JPA entity) object. return type is HashMap.
What is the best way to implement it.
Directly exposing the bean using Axis2.
Using Spring-Ws with CXF.
Writing a new method in a new wrapper class which accepts Strings as parameters.
(These string are actually as required by the original Map and POJO ).
And by setting these strings as properties and objects in POJO and Map respectively, as required by original method.
The Third method wont work in my case as the Map will contains several arraylists which needs to be stored in DB.So I have to use Map only.
Shall I go with SOAP or RESt.
Already two web services were provided using Axis2 in our project by old team.
We are using spring 3 (as core container and for ORM), Hibernate template, Tomcat 6.
Well, that question is best answered by yourself. We can only give hints here which framework and technology might work out best for you. In order to give any hint, we'd need some more information about your project.
SOAP and REST, for example, are two essentially different technologies. The SOAP protocol must use XML as information medium and can use literally any transport medium, e.g. HTTP, E-Mail, JMS, etc. Using SOAP, the contract, which is the WSDL specification, between a service endpoint and a client is the interface description. The REST protocol can use any information medium, e.g. JSON, XML, YAML, etc., but is limited to the HTTP protocol as transport medium. Here, the HTTP methods like DELETE, GET, POST are the interface description.
You said, you're actually using AXIS2. If your experiences with that framework are good enough, I would recommend to use it further. CXF is simply another Web Service Framework which cannot be used together with Spring-WS (but it can be used with the Spring Framework). Here, I would consider that each framework has its caveats and needs some time to learn.
am new on WS.
some simple questions in my mind, please try to solve it.
i did a demo WS for Calculator on calculator(), where it has one UI where i enter values for it, internally pass it to WS. Ok i got answer/output. but if i want to create only webservice which take/give xml data or just give xml data. how can i create it.
i found some WS URL's about some fame company. is it used by using by opening Connection. how they define this URL? am using MyEclipse10 when i went to create new WS, needed to use Java Bean class for create it. ok, if i create myWS url then how it ll get call? because it is JavaBean?
and if just want to create WS then i need not required to create New WS client?
i dont know it is simple or may be foolish question, when i walk on WS i stop here. i feel like , without basic knowledge started to build it.
please, clear it.
Thanx.
MyEclipse (as well as Eclipse, IBM D Developer, etc) let you create a Java Web service server in one of two ways:
Bottom up Java Bean: you supply a bean, it turns it into a WSDL (and generates the corresponding stub code)
Top down WSDL: you supply a WSDL, and it generates the corresponding stub code
When a company creates a web page, they set up a web server and publish some HTML pages on it.
When a company publishes a WSDL, they also set up a web server ... and publish an XML WSDL on it.
The URL you go to in order to read a WSDL is just an ordinary HTTP web server, that happens to be serving an XML WSDL at that location.
The WSDL specifies where the service can be found, and what operations and data types the service uses. A WSDL you create, or a WSDL that's published by some other company.
'Hope that helps
What would be the preferred method of pulling content from a remote database?
I don't think that I would want to pull directly from the database for a number of reasons.
(Such as easily being able to change where it is fetching the info from and a current lack of access from outside the server.)
I've been thinking of using HTTP as a proxy to the database basically just using some PHP to display raw text from the database and then grabbing the page and dumping it to a string for displaying.
I'm not exactly sure how I would go about doing that though. (Sockets?)
Right now I am building it around a blog/news type system. Though the content would expand in the future.
I've got a similar problem at the moment, and the approach I'm taking is to communicate from the client app with a database via a SOAP web service.
The beauty of this approach is that on the client side the networking involved consists of a standard HTTP request. Most platforms these days include an API to perform basic HTTP client functions. You'll then also need an XML or JSON parser to parse the returned SOAP data, but they're also readily available.
As a concrete example, a little about my particular project: It's an iPhone app communicating with an Oracle database. I use a web service to read data from the database and send the data to the app formatted in XML using SOAP. The app can use Apple's NSURLConnection API to perform the necessary HTTP request. The XML is then parsed using the NSXMLParser API.
While the above are pretty iPhone-specific (and are Objective-C based) I think the general message still applies - there's tools out there that will do most of the work for you. I can't think of an example of an HTTP API offhand, but for the XML parsing part of the equation there's Xerces, TinyXML, Expat...
HTH!
You might look at using AJAX (I recommend JSON instead of XML though). This is the technology underlying Google Maps.