Re: WSIF with Java Reflection or with Jaxme (or xstream)

[email protected] wrote:

>Re-hello,
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>No answers?
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>I wonder if I use Java Reflection (with setter methods) of stubs to fill input parameter object (for complex type).
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>OR
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>Use jaxme
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JAXB?

> (or xstream) to manipulate XML stream. Set attributes to correct values and generated from the XML stream the appropriate object.
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that solution seems to be Java specific as xstream  generates XML based 
on Java object tree/graph?

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>Somebody can give an opinion or its experience about this solution?
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as such why to bother with AXIS or WSIF? why not just open HTTP 
connection and do POST(using apache httpclient or even built in JDK 
APIs) with XML data - if service endpoint is SOAP just wrap it into 
SOAP:Envelope/SOAP:Body


that would be a simple and robust solution - working with reflection, 
generation of stub dynamically etc. is possible but may require lot of 
time and anyway it does not seem worth effort until you need 
multi-protocol WSDL binding capabilities of WSIF ...

best,

alek

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>-----------------------------------------------------------------
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>Hello everybody,
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>I use WSIF to invoke dynamically a Web Service:
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>I try this:
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>1 - Get the WSDL endpoint, operation name .... To call. My operation
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>take a complex type (new Person(name,firstname)) as input parameter and
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>return a String (hello <name> <firstname>)
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>2 - Generate in fly Java Stubs using Axis 1.2.1
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>3 - Get the dynamic class (from a ClassLoader class), fill this
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>instantiated object with setters methods using Java Reflection
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>4 - Set this dynamic object as an input parameter
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>(input.setObjectPart("Person_1", dynamicObject)). (Map this type with
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>service.mapType function)
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>5 - Call the WSIF executeRequestResponseOperation method.
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>It's works fine.
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>Now, I want to do the step 3 dynamically. Use Java Reflection to set all
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>the fields correctly with the user input value it's quiet complicated I
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>think.
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>So, I wonder whether with xstream API it will be easier.
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>1 - Get the WSDL endpoint, operation name .... 
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>2 - Generate in fly Java Stubs using Axis 1.2.1
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>3 - Get the dynamic class (from a ClassLoader class) of the input part
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>of the operation and generate the XML stream using xtream API
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>4 - Represent this XML stream as a JTree for the user who fill this. And
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>with this XML stream which is filled with user values, deserialize the
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>object back from the XML using xstream.
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>5 - Set the object generated by xstream as an input parameter
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>(input.setObjectPart("Person_1", xstreamGeneratedObject))
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>6 - Call the WSIF executeRequestResponseOperation method
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>Is somebody have already try this? (or a similar solution?)
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>I try to generate the XML stream from the stub generated by Axis, but
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>the fields are not initialized with default value. So, the XML stream is
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>empty.
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>For example, if I can get a Java Stubs from Axis like this (with a
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>default constructor which init nom and prenom to "" ):
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>package stubs.MyHelloServiceDme;
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>public class HelloObj  implements java.io.Serializable {
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>    private java.lang.String nom;
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>    private java.lang.String prenom;
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>    public HelloObj() {
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>      this.nom="";
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>      this.prenom="";
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>    }
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>    public java.lang.String getNom() {
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>        return nom;
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>    }
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>I can get the XML stream:
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><stubs.MyHelloServiceDme.HelloObj>
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>  <nom></nom>
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>  <prenom></prenom>
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>  <____hashCodeCalc>false</____hashCodeCalc>
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></stubs.MyHelloServiceDme.HelloObj>
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>Then, I can fill the XML stream <nom> and  <prenom> elements, get a Java
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>Object from the XML stream filled, and pass it to WSIF to invoker
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>operation.
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>Thanks to help me.
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>Delphine.
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>  
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-- 
The best way to predict the future is to invent it - Alan Kay