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From Anne Thomas Manes <a...@manes.net>
Subject Re: REQ: modular, small footprint, client side only SOAP Java impl? [Re: Apache.WebServices.Next?]
Date Fri, 31 Oct 2003 16:54:32 GMT
Alek,

You might take a look at kSOAP -- it's a J2ME-based client.
http://ksoap.enhydra.org/

Anne


At 10:42 AM 10/30/2003, you wrote:
>hi,
>
>replying to Dims' "Apache.WebServices.Next" post i would like to look on 
>more fundamental question concerning Apache WS modularity: i am interested 
>to find out if there is any interest in very modular, low footprint, Java 
>SOAP implementation that is based around XML Infoset object model with 
>XPath support.
>
>in AXIS requirements (http://ws.apache.org/axis/java/requirements.html) 
>there is identified need for "*A single SUPER TINY .jar file must be 
>enough for a client to communicate via SOAP*" but based on my recent (and 
>limited!) experience with extracting functionality from AXIS this is very 
>very difficult to do due to monolithic source tree (i do not mind to be 
>proven wrong!).
>
>i also think that on client side what is really required is just HTTP and 
>doc/literal support, in other words to allow direct manipulation of XML, 
>and there is no real need for sophisticated serialization/deserialization 
>infrastructure.
>
>i am very interested to learn about open source Java SOAP implementations 
>that are in such space (modular, small footprint, client side only SOAP Java).
>
>as proof of concept i have built Web XML Services Utility Library that 
>currently has following modules:
>* common (no dependencies except for XML pull parsing API - currently uses 
>XPP3/XB1 for XML Infoset API)
>* http_client (depends on common)
>- provides basic HTTP 1.x client side support with simple HTTP connection 
>manager
>* http_server (depends on common)
>- provide basic HTTP 1.x server side support with simplified Servlet-like API
>* invoker (depends on http_client)
>- allows simple invocation of service by sending XML on top of HTTP
>* processor (depends on http_server)
>- provides basic support for processing incoming XML over HTTP
>* dsig_globus (depends on common and security jar file from lib/dsig*)
>- provides XML digital signature and limited WS SEC support using Globus 
>Toolkit 3 grid proxy certificates
>(later: SOAP 1.1 Section 4 encoding (de)serialization support, small 
>footprint WSDL, dynamic invocations using WSDL, WS-RM, and other modules)
>
>client footprint for common + http_client + invoker is currently 40K jar 
>(+ 70K for XPP3).
>
>the previous version of this client side library is used in Xydra - An 
>automatic form generator for Web Services 
>(http://www.extreme.indiana.edu/xgws/xydra/) and was tested for last few 
>months so i am thinking about releasing it if there is enough interest. to 
>give you idea how it works here is small code snippet (interfaces 
>XmlElement, XmlDocument directly model XML Infoset Element and Document 
>Information Items and are implemented by XPP3/XB1):
>
>//construct XML
>XmlPullBuilder builder = XmlPullBuilder.newInstance();
>XmlElement request = builder.parseFragmentFromReader(
>new StringReader("<getNode><path>hello</path></getNode>"));
>// create XML service invoker
>HttpDynamicInfosetInvoker invoker = new HttpDynamicInfosetInvoker();
>invoker.setLocation("http://localhost:"+port);
>// do actual invocation by wrapping message in SOAP 1.1 Envelope and 
>sending it over HTTP
>XmlDocument response = invoker.invokeSoap11(request);
>String r = builder.serializeToString(response);
>System.out.println("got back "+r);
>
>so let me know about other open source Java SOAP implementations that are 
>very modular and/or have good client side and i would like to hear if 
>there is need for such library (i noticed some interest in axis-dev 
>mailing list archives but i could not find any references to open source 
>toolkit only mentioned were GLUE and Wingfoot both not under Apache-like 
>licenses).
>
>thanks,
>
>alek
>
>Davanum Srinivas wrote:
>
>>Folks,
>>
>>Please review the latest proposals that we are working on. We can have a 
>>VOTE next week to start
>>the ball rolling for the following. As usual, feel free to sign up for 
>>anything you are interested
>>in.
>>
>>#1: WS-FX - umbrella for WS-* specification implementation
>>#2: WSS4J - WS-Security Implementation under WS-FX
>>#3: SANDESHA - WS-Reliability Implementation under WS-FX
>>
>>URL:
>>http://nagoya.apache.org/wiki/apachewiki.cgi?WebServicesProjectPages/WebServicesProjectProposals
>>
>>Thanks,
>>dims
>>
>>=====
>>Davanum Srinivas - http://webservices.apache.org/~dims/
>>
>
>
>--
>If everything seems under control, you're just not going fast enough. 
>¬óMario Andretti
>



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