Problem with getTextFromPage Method

[bsnuggs76]

I'm trying to use the getTextFromPage method on the PdfTextExtractor Class in iText-2.1.4.jar.

Here are my prototypes:

D PdfTextExtractor...
D                 S               O   CLASS(*JAVA
D                                     :'com.lowagie.text.pdf-
D                                     .parser.PdfTextExtractor')

D new_PdfTextExtractor...
D                 PR                  like(PdfTextExtractor)
D                                     ExtProc(*JAVA
D                                     :'com.lowagie.text.pdf-
D                                     .parser.PdfTextExtractor'
D                                     :*CONSTRUCTOR)
D  inReader                           like(PdfReader)

D PdfTextExtractor_getTextFromPage...
D                 PR                  like(jString)
D                                     EXTPROC(*JAVA
D                                     :'com.lowagie.text.pdf-
D                                     .parser.PdfTextExtractor'
D                                     :'getTextFromPage')
D  argPageNbr                         like(jint) value

...and here's my logic:

/free
   airDocument = AirPdf_newReader(%trim(#lcstmf));
   airPages = Pdfreader_getNumberOfPages(airDocument);
   airExtractor = new_PdfTextExtractor(airDocument);
   airPage = 1;
   dow airPage <= airPages;
     [COLOR="red"]airString = PdfTextExtractor_getTextFromPage(airPage);[/COLOR]
     airBytes = String_getBytes(airString);
     #lcpage = airBytes;
   airPage = airPage + 1;
   enddo;
   Pdfreader_close(airDocument);
   // Clean Up
   freeLocalRef(airDocument);
   freeLocalRef(airExtractor);
/end-free

When I try to compile, I'm getting:

*RNF5406 30 1 The call passed fewer parameters than the prototype indicates
are required.
*RNF7535 30 1 The type and attributes of the parameter do not match those
of the prototype.
...both pointing to the line in red above.

The documentation for the class shows this:

getTextFromPage

public String getTextFromPage(int page)
                       throws IOException

    Gets the text from a page.

    Parameters:
        page - the page number of the page 
    Returns:
        a String with the content as plain text (without PDF syntax) 
    Throws:
        IOException

To me it looks like I have it defined correctly, so I can't figure out where these compile messages are coming from.

Any thoughts?

[bsnuggs76]

Nevermind. After one change to my prototype /include file...I didn't recreate the service program SVAIRPDF so it was picking up the wrong prototype. I got it to compile, but now I'm getting a hard error that's making the JVM end. The code has changed to this:

/free
airDocument = AirPdf_newReader(%trim(#lcstmf));
airPages = Pdfreader_getNumberOfPages(airDocument);
airExtractor = new_PdfTextExtractor(airDocument);
airPage = 1;
dow airPage <= airPages;
airString = PdfTextExtractor_getTextFromPage(airDocument:airPa ge)
airBytes = String_getBytes(airString);
#lcpage = airBytes;
airPage = airPage + 1;
enddo;
Pdfreader_close(airDocument);
// Clean Up
freeLocalRef(airDocument);
freeLocalRef(airExtractor);
/end-free

[bsnuggs76]

It's working now...but #lcpage only contains the first 256 bytes of the string being loaded up from the method pdfTextExtractor_getTextFromPage. I look at the prototype for String_getBytes and it supports strings up to 64k in length so why is it only returning the first 256 bytes?

[bsnuggs76]

Nevermind...AGAIN. airBytes was defined as 256 for another function. I just created another variable called airBytes32k to hold the results. I should really look a little harder before jumping to the forum for answers :-)

[T.Snyder]

Sounds like you're getting it! Have fun!