Due to the fact that my PDF runs into 100's of pages, I get outOFMemory exception. I have already taken care of the JVM memory sizes on my machine having 512MB RAM, till this is not enough. Based on apache's recomendation, I am trying to figure out a way by which I can use multiple page sequence. Basically, my report has the same look and feel on all pages. I can have multiple sequences in one of 2 ways: - call for a fresh page sequence after, say every 20 records (preferable, since the data volume varies for each record). - call for a page sequence per new page, wherein I specify that the number of records per page is, say, 5 A simplified version of my XML looks like: <ROWSET> <ROW> <SSN></SSN> <NAME></NAME> <ADDRESS></ADDRESS> <PHONE></PHONE> </ROW> </ROWSET> Here is a very simplified version of XSL that I am currently using: <fo age-sequence master-reference="default-master"> <fo:static-content flow-name="xsl-region-before"> --------- </fo:static-content> <fo:static-content flow-name="xsl-region-after"> ---------- </fo:static-content> <fo:flow flow-name="xsl-region-body"> <fo:table table-layout="fixed"> <fo:table-column column-width="20mm" background-color="white"/> <fo:table-column column-width="43mm" background-color="white"/> <fo:table-column column-width="20mm" background-color="white"/> <fo:table-column column-width="43mm" background-color="white"/> <fo:table-header> -------- </fo:table-header> <fo:table-body> <xsl:apply-templates select="document('AllEmployees.xml')/ROWSET/ROW"> </xsl:apply-templates> </fo:table-body> </fo:table> </fo:flow> </fo age-sequence> <xsl:template match="ROW"> <fo:table-row keep-with-next="always"> <fo:table-cell> <fo:block><xsl:value-of select="SSN"/></fo:block> </fo:table-cell> <fo:table-cell> <fo:block><fo:block><xsl:value-of select="Name"/></fo:block> </fo:table-cell> <fo:table-cell padding="1.0pt"> <fo:block><xsl:value-of select="Address"/></fo:block> </fo:table-cell> <fo:table-cell padding="1.0pt"> <fo:block><xsl:value-of select="Phone"/></fo:block> </fo:table-cell> </fo:table-row> </template> Any help would be greatly appreciated.
Balaji Loganathan
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Why u r loading the AllEmployees.xml using document() function. you can supply xml directly to FOP using -XML option.
One idea could be to preprocess your xml and break them into a group of 5 records using xslt for xml, this is possible with xsl for-each <ROWSET> <break> 5 <ROW></ROW> elements</break> <break> 5 <ROW></ROW> elements</break> <break> 5 <ROW></ROW> elements</break> </ROWSET> now use a new xsl for FO which will apply a new page sequence for every break element some thing like this <xsl:template match="break"> <fo age-sequence master-reference="default-master"> <fo:flow flow-name="xsl-region-body"> <xsl:apply-templates/> </fo:flow> </fo age-sequence> </xsl:template> Give a try. rgds balaji
I don't have control over the XML, which is delivered to me from elsewhere. So, I can't get additional tags. However, I have been able to make some progress, and now get one record per page. I know that using MOD and position(), I can send 5 records per page sequence, but I am not sure how to implement it in the code. Following is the XSL for the XML noted above, which generates 1 record per page-sequence while I want it to generate 5 records per page-sequence. <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fo="http://www.w3.org/1999/XSL/Format">
Originally posted by Prateek Gupta: I don't have control over the XML, which is
Prateek, Even if it sent by someone else on a random basis,you still have control on it.All u r going to do is receive the incoming xml,group them, process them for pdf. i guess this link will sure help you on grouping. www.dpawson.co.uk/xsl/sect2/N4486.html Just wondering how i received a related email tip, with files in your name. is that you ? below the main content of the email.
Balaji Loganathan
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Hope you solved problem,if not get back.
Monty Guppy
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Balaji, Thanks to you and some others who helped me point to the right direction. I was able to write the XSL for multi-page-sequences, without altering the XML. If you or any one else would be interested, please let me know and I would post it.\ One interesting thing that I did note is that it is better to render many pages at a time rather than necessarily one page at a time. The original problem I had was I was getting java.lang.outOfMemory. Apparently the PDF gets rendered at the end of each page sequence. So, one can increase the number of records in a page sequence such that it spans to say 50 PDF pages. Rendering 50 pages at a time (in a 2000 page PDF document that I have) is better than rendering 1 page at a time. It saved about 15% time in doing that. Some of the other things that I did to overcome Memory problems is setting the JVM memory size and taking away "Page x of y" type of references. Thanks Prateek
Balaji Loganathan
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if you dont mind,please post ur solution (xsl)here, it will sure help others.
Monty Guppy
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Please pay special attention to: <xsl:for-each select="ROW[position() mod 150 = 1]"> (Here I consider 150 records per sequence) and <xsl:for-each select="following-sibling::ROW[ position() < 150 ]"> (This is where template is applied to other 149 records) XML: <ROWSET> <ROW num="1"> <SSN>100-00-2000</SSN> <FIRST_NAME>Darren</FIRST_NAME> <MIDDLE_NAME>S</MIDDLE_NAME> <LAST_NAME>Adli</LAST_NAME> <SEX>M</SEX> <BIRTH_DATE>08/10/1955</BIRTH_DATE> <HOME_PHONE>500-245-2000</HOME_PHONE> <ADDR_LINE1>2422 Glenmary Avenue</ADDR_LINE1> <CITY>New York</CITY> <STATE>LA</STATE> <ZIP_CD>65201</ZIP_CD> <CLASS_DESCRIPTION>LOUISVILLE</CLASS_DESCRIPTION> <DEPENDANTS>Lizzy Richard (Spouse)<DEPENDANTS> </ROW> <ROW num="2">> .. . . . </ROW> XSL: <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fo="http://www.w3.org/1999/XSL/Format">
@Kamohelo Mofokeng
For xsl:if element, the attribute is test (for node test); select? never!
Kamohelo Mofokeng
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Thanks g tsuji,
I have changed xsl:if accordingly i.e. changed select to test.
So, how do I implement Monty Guppy's example for my environment - I'm still trying create multiple page sequences because I'm running out of memory when I perform transormation for large files.
Regards
g tsuji
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If that change takes out the error, what is not working? As it is a sacre long scrpt, I would suggest you open a new thread of your own so as not to mess up other people's concern. Further, I would suggest you give more precision on what errors or expectations etc... to provide more motivation for people to read it entirely critically.
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age-sequence master-reference="default-master">
utput method="xml" encoding="UTF-8" indent="yes"/>
utput method="xml" encoding="UTF-8" indent="yes"/>
