The simple line in the book, updating XFA is outside the scope.. is true but
a bit frustrating as it a VERY powerful way to fill forms
I spent some time investigating VTD-XML as a Java parsing library (there is
also a C++ version) and offer the following as a method of at least getting
to the right place in the XML tree and being able to update values to feed
back into an XFA form. It's in Groovy, but all you Java nuts should have no
problem with this
Anyone with better methods would be glad to hear.
>>
import com.ximpleware.VTDGen
import com.ximpleware.VTDNav
import com.ximpleware.XMLModifier
import com.ximpleware.AutoPilot
/*
Extract.
myform = '''<xfa:datasets
xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/";>
<xfa:data>
<myForm>
<name_title>Mr</name_title>
<name_first>John</name_first>
<name_last>Renfrew</name_last>
</myForm>
</xfa:data>
</xfa:datasets>
'''
*/
vg = new VTDGen()
xm = new XMLModifier()
f = new File(src)
fis = new FileInputStream(f)
b = new byte[(int) f.length()]
fis.read(b)
vg.setDoc(b)
vg.parse(true)
vn = vg.getNav()
ap = new AutoPilot(vn)
ap.selectElementNS("http://ns.adobe.com/xdp/";, 'xdp:xdp')
xm.bind(vn)
if (vn.toElement(VTDNav.FIRST_CHILD, "config")){
if (vn.toElement(VTDNav.NEXT_SIBLING , "template")){
if (vn.toElement(VTDNav.NEXT_SIBLING , "xfa:datasets")){
if (vn.toElement(VTDNav.FIRST_CHILD,"xfa:data")){
if (vn.toElement(VTDNav.FIRST_CHILD,"myForm")){
if (vn.toElement(VTDNav.FIRST_CHILD,"name_title")) {
i = vn.getText()
if (i!=-1){
xm.updateToken(i,"Master")
xm.updateElementName("name_status")
//to change next element value or name need to navigate
with vn.toElement(4)
//vn.toElement(4)
//i = vn.getText()
//xm.updateToken(i, value)
}
}
}
}
}
}
}
xm.output(new FileOutputStream(dest))
/*
OUTPUTS
...
<xfa:datasets xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/";>
<xfa:data>
<myForm>
<name_status>Master</name_status>
<name_first>John</name_first>
<name_last>Renfrew</name_last>
*/
All you have to do then is open in Acrobat Pro and save as
john renfrew
Right Way Up
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