Android Question Problem to validate xml file using xsd - Fattura Elettronica

[Lello1964]

I'm trying to validate xml file using xsd, i've found this code but doesn't work

error in line 22

sub test
    Dim data_file_Xsd As String = File.ReadString(File.DirAssets,"Schema_VFPR12.xsd")
    Dim data_file_xml As String = File.ReadString(File.DirAssets,"test.xml")

    ValidateFile(data_file_Xsd,data_file_xml)
end sub

Sub ValidateFile(xsdFile As String,xmlFile As String) As Boolean
    Private SchemaFactory As JavaObject
    Private factory As JavaObject
    Private XMLconstants As JavaObject
    Private Validator As JavaObject
    Private StreamSource As JavaObject
    Private xsd,xml As JavaObject
    Private Schema As JavaObject
    Private ErrorList As List
 
    ErrorList.Initialize
 
    XMLconstants.InitializeStatic("javax.xml.XMLConstants")
    SchemaFactory.InitializeStatic("javax.xml.validation.SchemaFactory")
    factory = SchemaFactory.RunMethod("newInstance",Array(XMLconstants.GetField("W3C_XML_SCHEMA_NS_URI")))

    xsd.InitializeNewInstance("java.io.File",Array(xsdFile))
    xml.InitializeNewInstance("java.io.File",Array(xmlFile))
    Schema = factory.RunMethod("newSchema",Array As Object(xsd))
    Validator = Schema.RunMethod("newValidator",Null)
    StreamSource.InitializeNewInstance("javax.xml.transform.stream.StreamSource",Array(xml))
    Validator.RunMethod("setErrorHandler",Array(Validator.CreateEvent("org.xml.sax.ErrorHandler","xmlerr",Null)))
    Validator.RunMethod("validate",Array(StreamSource))

    If ErrorList.Size > 0 Then
        '        For Each i As Object In ErrorList
        '            Log("Error "&i)
        '        Next
        'Technical error report
        For a = 0 To ErrorList.Size-2 Step 2
            'ptxw.WriteLine(ErrorList.Get(a))
            Log(ErrorList.Get(a))
        Next
        Return False
    End If
    Return True
End Sub

i've this error :

Error occurred on line: 672 (GestFatture)
java.lang.reflect.InvocationTargetException
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4j.object.JavaObject.RunMethod(JavaObject.java:132)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:348)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:157)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:201)
    at anywheresoftware.b4a.shell.DebugResumableSub$RemoteResumableSub.resume(DebugResumableSub.java:22)
    at anywheresoftware.b4a.BA.checkAndRunWaitForEvent(BA.java:275)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:150)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:201)
    at anywheresoftware.b4a.keywords.Common$15.run(Common.java:1804)
    at android.os.Handler.handleCallback(Handler.java:883)
    at android.os.Handler.dispatchMessage(Handler.java:100)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7626)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:503)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)
Caused by: java.lang.IllegalArgumentException: http://www.w3.org/2001/XMLSchema
    at javax.xml.validation.SchemaFactory.newInstance(SchemaFactory.java:192)
    ... 21 more

 

[Star-Dust]

XMLSchema validation on Android

I maintain the JDOM project and I am trying to 'certify' it on Android. Most things work fine, but XML Schema validation is proving problematic... My questions are: Is there a way to do XMLSchema

stackoverflow.com

 

[TILogistic]

?

 

[Lello1964]

?
View attachment 143120

this is the result I want to obtain in B4A, how to do it ?