RE: [xsl] Accessing External Java Library

["Michael Kay" <mike@xxxxxxxxxxxx>]

Right, so it's an instance-level method and therefore the call needs to
supply an extra parameter, which is the object instance. 

I would expect to see something like:

<xsl:variable name="instance" select="PGP:new()"/>
<xsl:variable name="encryptData" 
  select="PGP:encrypt($instance, $passphrase, $datain, $keyring,
$filename)"/>


Michael Kay
http://www.saxonica.com/
 

> -----Original Message-----
> From: Carl Bourne [mailto:cbourne@xxxxxxxxxxxxxxx] 
> Sent: 02 November 2007 16:23
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: RE: [xsl] Accessing External Java Library
> 
> Hi Michael,
> 
> The Java signature method for the method we are calling is:
> 
> encrypt(string, string, string, string)
> 
> which is declared as the following in the iPGP java class:
> 
> public native int encrypt(String passphraseoruid, String 
> datain, String pgpkeyring, String outputfilename);
> 
> Regards,
> 
> 
> Carl Bourne
> Intellect
> DDI: +44 1491 842502
> M: +44 7770 284294
> 
> 
> 
> 
> -----Original Message-----
> From: Michael Kay [mailto:mike@xxxxxxxxxxxx]
> Sent: 02 November 2007 15:37
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: RE: [xsl] Accessing External Java Library
> 
> Well, this is what it says:
> 
> Trying method encrypt: name matches
> Method is not static
> Method has 4 arguments; expecting 3 
> 
> And you haven't showed us the Java method signature, so I 
> can't advise any further.
> 
> Michael Kay
> http://www.saxonica.com/
> 
>  
> 
> > -----Original Message-----
> > From: Carl Bourne [mailto:cbourne@xxxxxxxxxxxxxxx]
> > Sent: 02 November 2007 15:00
> > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> > Subject: RE: [xsl] Accessing External Java Library
> > 
> > Hi Michael,
> > 
> > I think I'm now creating an instance of the class correctly but I'm 
> > still getting some errors relating to a missing function when using 
> > non static methods.
> > 
> > Output:
> > 
> > C:\Documents and Settings\cbourne\My Documents\PGPJava>java -cp 
> > .;C:\javapgp\iPG P.jar net.sf.saxon.Transform -TJ pgp.xml pgp.xslt 
> > Loading iPGP.iPGP Looking for method new in Java class 
> class iPGP.iPGP 
> > Number of actual arguments = 4 Looking for a constructor Found a 
> > constructor with 4 arguments Found a constructor with 0 arguments 
> > Loading iPGP.iPGP Looking for method encrypt in Java class class 
> > iPGP.iPGP Number of actual arguments = 4 Trying method 
> getArmor: name 
> > does not match Trying method setArmor: name does not match Trying 
> > method
> > getConventional: name does not match Trying method
> > setConventional: name does not match Trying method
> > getInputIsText: name does not match Trying method
> > setInputIsText: name does not match Trying method
> > getOutputIsText: name does not match Trying method
> > setOutputIsText: name does not match Trying method
> > getUseKeyID: name does not match Trying method setUseKeyID: 
> > name does not match Trying method getOutputFilename: name does not 
> > match Trying method setOutputFilename: name does not match Trying 
> > method getASCIIOutput: name does not match Trying method 
> > getPGPSDKErrorMessage: name does not match Trying method 
> encrypt: name 
> > matches Method is not static Method has 4 arguments; expecting 3 
> > Trying method
> > encryptAndSign: name does not match Trying method
> > decryptAndVerify: name does not match Trying method hashCode: 
> > name does not match Trying method getClass: name does not 
> match Trying 
> > method wait: name does not match Trying method
> > wait: name does not match Trying method wait: name does not match 
> > Trying method equals: name does not match Trying method
> > toString: name does not match Trying method notify: name does not 
> > match Trying method notifyAll: name does not match No 
> method or field 
> > matching encrypt with 4 parameters found in class iPGP.iPGP 
> Error at 
> > xsl:variable on line 21 of 
> > file:/C:/Documents%20and%20Settings/cbourne/
> > My%20Documents/PGPJava/pgp.xslt:
> >   XPST0003: XPath syntax error at char 54 on line 21 in {... 
> > $datain, $keyring,
> > $filena...}:
> >     Cannot find a matching 4-argument function named
> > {java:iPGP.iPGP}encrypt()
> > Failed to compile stylesheet. 1 error detected.
> > 
> > XSLT:
> > 
> > <?xml version="1.0" ?>
> > <xsl:stylesheet version="2.0" 
> >       xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> >       xmlns:PGP="java:iPGP.iPGP"
> >       exclude-result-prefixes="PGP">
> >       
> > 
> > <xsl:template match="dataelements">
> > 
> > <xsl:param name="passphrase">mypswd</xsl:param>
> >  <xsl:param name="keyring"></xsl:param>  <xsl:param 
> > name="filename"></xsl:param>
> > 
> > <xsl:value-of select="PGP:new(true(), true(), true(), true())" /> 
> > <!--<xsl:value-of select="PGP:setArmor(true())"
> > /> <xsl:value-of select="PGP:setConventional(true())" /> 
> <xsl:value-of 
> > select="PGP:setInputIsText(true())" /> <xsl:value-of 
> > select="PGP:setOutputIsText(true())"/>
> > -->   
> >    <xsl:variable name="datain" select="data"/>
> >    <xsl:variable name="encryptData" 
> > select="PGP:encrypt($passphrase, $datain, $keyring, $filename)"/>
> >    <xsl:value-of select="$encryptData"/> </xsl:template> 
> > </xsl:stylesheet>
> > 
> > XML:
> > 
> > <dataelements>
> >     <dataelement>
> >         <data>New York</data>
> >     </dataelement>
> >     <dataelement>
> >         <data>Boston</data>
> >      </dataelement>
> >      <dataelement>
> >         <data>Denver</data>
> >      </dataelement>
> > </dataelements>
> > 
> > 
> > 
> > 
> > 
> > 
> > Carl Bourne
> > Intellect
> > DDI: +44 1491 842502
> > M: +44 7770 284294
> > 
> > 
> > 
> > 
> > 
> > -----Original Message-----
> > From: Michael Kay [mailto:mike@xxxxxxxxxxxx]
> > Sent: 01 November 2007 17:10
> > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> > Subject: RE: [xsl] Accessing External Java Library
> > 
> > Once again, the messages give you the information, and once again, 
> > it's in the checklist that I gave you earlier:
> > 
> > > C:\Documents and Settings\cbourne\My Documents\PGPJava>java -cp 
> > > .;C:\javapgp\iPG P.jar net.sf.saxon.Transform -TJ pgp.xml 
> pgp.xslt 
> > > Loading iPGP.iPGP Looking for method setArmor in Java class class 
> > > iPGP.iPGP Number of actual arguments = 1 Trying method
> > getArmor: name
> > > does not match Trying method
> > > setArmor: name matches Method is not static
> > 
> > If you're calling a non-static method then you need to supply an 
> > object instance as the first argument. The documentation tells you 
> > how.
> > 
> > Michael Kay
> > http://www.saxonica.com/