[Montag-users] Testing openlaszlo SOAP client -> XQueryService -> eXist DB

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This experiment is an attempt to invoke montag XQueryService -> eXist DB

from a SOAP client in openlaszlo platform running on tomcat server.

Test Requirement: Install lps-3.0.2 servlet in %tomcat_home%\webapps\

http://www.openlaszlo.com/download/

http://www.laszlosystems.com/developers/download/ ..... servlet only 10 MB

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openlaszlo SOAP documents here ..

http://www.laszlosystems.com/lps-2.2/docs/guide/rpc-soap.html#d0e23146

Example 40.10 XML schema array pattern

The Laszlo SOAP WSDL parser expects the XML schema array pattern to look 
like:

<xsd:complexType name="ARRAY_NAME">
    <xsd:complexContent>
          <xsd:restriction base="soapenc:Array">
             <xsd:attribute ref="soapenc:arrayType" wsdl:arrayType="ARRAY_TYPE[]"/>
          </xsd:restriction>
    </xsd:complexContent>
</xsd:complexType>

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Extract of XML schema from montag XQueryService.wsdl

 <wsdl:types>
    <schema elementFormDefault="qualified" 
targetNamespace="http://montag.sourceforge.net/ns/wsdl/local/types" 
    xmlns="http://www.w3.org/2001/XMLSchema" 
    xmlns:types="http://montag.sourceforge.net/ns/wsdl/local/types">

      <element name="query">
        <complexType>
          <sequence>
            <element name="collection" type="xsd:string"/>
            <element name="query" type="xsd:string"/>
            <element maxOccurs="unbounded" minOccurs="0" name="namespaces" 
type="xsd:string"/>
            <element maxOccurs="unbounded" minOccurs="0" name="vars" 
type="xsd:string"/>
          </sequence>
        </complexType>
      </element>

      <element name="queryResponse">
        <complexType>
          <sequence>
            <element name="queryReturn" type="xsd:string"/>
          </sequence>
        </complexType>
      </element>

      <element name="username">
        <simpleType>
          <restriction base="xsd:string"/>
        </simpleType>
      </element>

      <element name="password">
        <simpleType>
          <restriction base="xsd:string"/>
        </simpleType>
      </element>

      <element name="MontagSOAPFault">
        <complexType>
          <sequence/>
        </complexType>
      </element>

    </schema>

 </wsdl:types>
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Invoking the webservice and monitoring POST session using Microsoft Fiddler HTTP 
Debugging Proxy

this is the textview of the POST

fpv=7%2E19&lzr=swf6&proxied=true&lzpostbody=%3Ce%3E%3Ch%3E%3Cusernam
e%3Eadmin%3C%2Fusername%3E%3Cpassword%3E%3C%2Fpassword%3E%3C%
2Fh%3E%3Cb%3E%3Cparams%3E%3Cparam%3E%253Cquery%2520xmlns%253A
xsi%253D%2522http%253A%252F%252Fwww%252Ew3%252Eorg%252F2001%252
FXMLSchema%252Dinstance%2522%253E%253Cusername%253E%253C%252Fus
ername%253E%253Cpassword%253E%253C%252Fpassword%253E%253Ccollectio
n%253Eshakespeare%252Fplays%253C%252Fcollection%253E%253Cquery%253Ef
or%2520%2524speech%2520in%2520%252F%252FSPEECH%255BSPEAKER%252
0%2526amp%253B%253D%2520%2527witch%2527%2520and%2520near%2528%2
52E%252C%2520%2527fenny%2520snake%2527%2529%255D%2520return%2520
%2524speech%253C%252Fquery%253E%253Cnamespaces%253E0%253C%252Fn
amespaces%253E%253Cvars%253E0%253C%252Fvars%253E%253C%252Fquery
%253E%3C%2Fparam%3E%3C%2Fparams%3E%3C%2Fb%3E%3C%2Fe%3E&opst
yle=document&operation=query&port=XQueryService&service=XQueryServiceService
&wsdl=http%3A%2F%2Flocalhost%3A8080%2Fmontag%2Fservices%2FXQueryServi
ce%3FWSDL&request=invoke&url=soap%3A%2F%2Fsoap&reqtype=POST&lzt=data
&ccache=false&cache=false&sendheaders=false

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This POST decodes as follows ..( note the openlaszlo arguments at top and tail)

fpv=7.19
&lzr=swf6
&proxied=true
&lzpostbody=
<e>
<h>
<username>admin</username>
<password></password>
</h>
<b>
<params>
<param>
<query xmlns:xsi="http://www.w3.org/2001/XMLSchema%2Dinstance">
<username></username>
<password></password>
<collection>shakespeare/plays</collection>
<query>for $speech in //SPEECH[SPEAKER &amp;= 'witch' and near(., 'fenny snake')] 
return $speech</query>
<namespaces>0</namespaces>
<vars>0</vars>
</query>
</param>
</params>
</b>
</e>
&opstyle=document&operation=query
&port=XQueryService&service=XQueryServiceService
&wsdl=http://localhost:8080/montag/services/XQueryService?WSDL
&request=invoke&url=soap://soap&reqtype=POST
&lzt=data
&ccache=false
&cache=false
&sendheaders=false

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However .. I am getting an AxisFault report in the SOAPclient log (the SOAP message 
POST does not reach the montag log and there is no response message)

"<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<soapenv:Fault>
<faultcode>soapenv:Server.userException</faultcode>
<faultstring>org.xml.sax.SAXException: operation description is missing parameter 
description!</faultstring>
<detail>
<ns1:hostname 
xmlns:ns1="http://xml.apache.org/axis/">mylocalhostname</ns1:hostname>
</detail>
</soapenv:Fault>
</soapenv:Body>
</soapenv:Envelope>"

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Can you see any montag incompatibility in the openlaszlo SOAP message which 
results in SOAP message not being processed by montag .. not even being logged?

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To demonstrate that montag/exist is setup correctly, I can invoke the same web 
service using a PHP5 SOAP client .. which correctly returns this test response ..

QUERY PARAMETERS ARRAY:
username: 
password: 
collection: shakespeare/plays
query: for $speech in //SPEECH[SPEAKER &= 'witch' and near(., 'fenny snake')] return $speech
namespaces: 0
vars: 0

SOAP FUNCTIONS:
array(1) { [0]=> string(38) "queryResponse query(query $parameters)" } 

SOAP TYPES:
array(5) { [0]=> string(85) "struct query { string collection; string query; string 
namespaces; string vars; }" [1]=> string(45) "struct queryResponse { string 
queryReturn; }" [2]=> string(15) "string username" [3]=> string(15) "string password" 
[4]=> string(26) "struct MontagSOAPFault { }" } 

LAST REQUEST HEADERS:
string(196) "POST /montag/services/XQueryService HTTP/1.1 Host: localhost:8080 
Connection: Keep-Alive User-Agent: PHP SOAP 0.1 Content-Type: text/xml; 
charset=utf-8 SOAPAction: "" Content-Length: 472 " 

LAST REQUEST:
string(472) " shakespeare/playsfor $speech in //SPEECH[SPEAKER &= 'witch' and 
near(., 'fenny snake')] return $speech00 " 

LAST RESPONSE HEADERS:
string(147) "HTTP/1.1 200 OK Content-Type: text/xml;charset=utf-8 Transfer-
Encoding: chunked Date: Sun, 07 Aug 2005 14:02:25 GMT Server: Apache-
Coyote/1.1 " 

LAST RESPONSE:
string(1788) "<?xml version="1.0" encoding="UTF-8"?> <montag:result-set 
xmlns:montag="http://montag.sourceforge.net/ns/result-set" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://montag.sourceforge.net/ns/result-set 
http://montag.sourceforge.net/schema/resultSet.xsd"> 
<montag:content> 
<SPEECH> 
<SPEAKER> Second <exist:match 
xmlns:exist="http://exist.sourceforge.net/NS/exist">Witch</exist:match> </SPEAKER> 
<LINE> Fillet of a <exist:match 
xmlns:exist="http://exist.sourceforge.net/NS/exist">fenny</exist:match> <exist:match 
xmlns:exist="http://exist.sourceforge.net/NS/exist">snake</exist:match> , </LINE> 
<LINE>In the cauldron boil and bake;</LINE> 
<LINE>Eye of newt and toe of frog,</LINE> 
<LINE>Wool of bat and tongue of dog,</LINE> 
<LINE>Adder's fork and blind-worm's sting,</LINE> 
<LINE>Lizard's leg and owlet's wing,</LINE> 
<LINE>For a charm of powerful trouble,</LINE> 
<LINE>Like a hell-broth boil and bubble.</LINE> 
</SPEECH> 
</montag:content> 
</montag:result-set> " 