Re: [iText-questions] IText doesn't seem to be thread safe?
Bang on the
money,
I hadn't
realised that each servlet was instantiated
only once. Rather than force the server
to create multiple instances I removed the
class variables and that fixed it.
Regards
Peter Wilkinson
System Developer
Mantel Solutions
Pty Ltd
PO Box 98,
35 Hamilton Road
Moorooka QLD
4105
P: +61 7 3848
0001
F: +61 7 3392
9923
W: www.mantel.com.au
The information
contained in this electronic message (e-mail)
and any files transmitted with it, is intended
for the named recipients only. It may
contain privileged and or confidential information
and if you are not the intended recipient
you must not copy distribute or take any
action in reliance on it. If you have received
this electronic message (e-mail) and any
files transmitted with it in error please
delete immediately and advise Mantel Solutions
on 07 3848 0001.
--- Original
Message ---
From: "Paulo Soares" <[EMAIL PROTECTED]>
To: "Post all your questions
about iText here"
Date: Thu, 20 Jul 2006 09:01:06
+0100
Subject: Re: [iText-questions]
IText doesn't seem to be thread safe?
I suspect that it's a problem with the
server configuration. The app server can
work in two modes: one where each request
creates a new instance of the servlet
and another where the same instance is used
by all the requests. Your server is configured
for the latter. Just guessing.Paulo-
Original Message - From: "Peter Wilkinson"
<[EMAIL PROTECTED]>To:
Sent:
Thursday, July 20, 2006 4:36 AMSubject:
[iText-questions] IText doesn't seem to be
thread safe?> I've written
a jsp page that produces a PDF using iText
and it work great > until 2 people
try and run the report at the same time.>>
I get a variety of errors including>>
DocumentException : Document is closed.>
ConcurrentModficationException>
NullPointerException>>
as well as pdf's that are corrupt.>>
I haven't declared a single thing on the
page as being static. All the >
exceptions are generated when trying to call
a Document method so I'm > wondering
if maybe the document object isn't thread
safe?>> This is my document
creation code.>> document =
new Document(PageSize.A4.rotate());>
baseFont = BaseFont.createFont("Helvetica",
BaseFont.WINANSI, false);> font =
new Font(baseFont, defaultFontSize);>
totalFont = new Font(baseFont, 9);>
totalFont.setStyle(Font.BOLD);> heading1Font
= new Font(baseFont, 20, Font.BOLDITALIC,
new Color(0, 0, > 0));> heading2Font
= new Font(baseFont, 17, Font.BOLDITALIC,
new Color(0, 0, > 0));> heading3Font
= new Font(baseFont, 14, Font.BOLDITALIC,
new Color(0, 0, > 0));> defaultLayoutCell
= new Cell();> defaultLayoutCell.setBorder(Rectangle.NO_BORDER);>
ByteArrayOutputStream baos = new ByteArrayOutputStream();>
writer = PdfWriter.getInstance(document,
baos);> //writer.setEncryption(false,
"", "", PdfWriter.AllowCopy | > PdfWriter.AllowPrinting);>
PageEventHandler pageEventHandler = new PageEventHandler();>
writer.setPageEvent(pageEventHandler);>
writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);>
// step 3: we open the document> document.open();>>
Regards>> Peter Wilkinson>
System Developer> Mantel Solutions
Pty Ltd>> PO Box 98, 35 Hamilton
Road> Moorooka QLD 4105>>
P: +61 7 3848 0001> F: +61 7 3392
9923> W: www.mantel.com.au>>
The information contained in this electronic
message (e-mail) and any > files transmitted
with it, is intended for the named recipients
only. It > may contain privileged
and or confidential information and if you
are not > the intended recipient you
must not copy distribute or take any action
in > reliance on it. If you have received
this electronic message (e-mail) and >
any files transmitted with it in error please
delete immediately and > advise Mantel
Solutions on 07 3848 0001.>
->
Take Surveys. Earn Cash. Influence the Future
of IT> Join SourceForge.net's Techsay
panel and you'll get the chance to share
> your> opinions on IT &
business topics through brief surveys --
and earn cash> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV>
___>
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https://lists.sourceforge.net/lists/listinfo/itext-questions>
Re: [iText-questions] IText doesn't seem to be thread safe?
Peter -- you declared the document to be ''static'' <%! %> will be static in your case - move "Document document;" On 7/20/06,
Paulo Soares <[EMAIL PROTECTED]> wrote:
I suspect that it's a problem with the server configuration. The app servercan work in two modes: one where each request creates a new instance of theservlet and another where the same instance is used by all the requests.
Your server is configured for the latter. Just guessing.Paulo- Original Message -From: "Peter Wilkinson" <[EMAIL PROTECTED]
>To: <itext-questions@lists.sourceforge.net>Sent: Thursday, July 20, 2006 4:36 AMSubject: [iText-questions] IText doesn't seem to be thread safe?
> I've written a jsp page that produces a PDF using iText and it work great> until 2 people try and run the report at the same time.>> I get a variety of errors including>> DocumentException : Document is closed.
> ConcurrentModficationException> NullPointerException>> as well as pdf's that are corrupt.>> I haven't declared a single thing on the page as being static. All the> exceptions are generated when trying to call a Document method so I'm
> wondering if maybe the document object isn't thread safe?>> This is my document creation code.>> document = new Document(PageSize.A4.rotate());> baseFont = BaseFont.createFont("Helvetica",
BaseFont.WINANSI, false);> font = new Font(baseFont, defaultFontSize);> totalFont = new Font(baseFont, 9);> totalFont.setStyle(Font.BOLD);> heading1Font = new Font(baseFont, 20, Font.BOLDITALIC
, new Color(0, 0,> 0));> heading2Font = new Font(baseFont, 17, Font.BOLDITALIC, new Color(0, 0,> 0));> heading3Font = new Font(baseFont, 14, Font.BOLDITALIC, new Color(0, 0,> 0));> defaultLayoutCell = new Cell();
> defaultLayoutCell.setBorder(Rectangle.NO_BORDER);> ByteArrayOutputStream baos = new ByteArrayOutputStream();> writer = PdfWriter.getInstance(document, baos);> //writer.setEncryption(false, "", "",
PdfWriter.AllowCopy |> PdfWriter.AllowPrinting);> PageEventHandler pageEventHandler = new PageEventHandler();> writer.setPageEvent(pageEventHandler);> writer.setViewerPreferences(PdfWriter.PageModeUseOutlines
);> // step 3: we open the document> document.open();>> Regards>> Peter Wilkinson> System Developer> Mantel Solutions Pty Ltd>> PO Box 98, 35 Hamilton Road
> Moorooka QLD 4105>> P: +61 7 3848 0001> F: +61 7 3392 9923> W: www.mantel.com.au>> The information contained in this electronic message (e-mail) and any
> files transmitted with it, is intended for the named recipients only. It> may contain privileged and or confidential information and if you are not> the intended recipient you must not copy distribute or take any action in
> reliance on it. If you have received this electronic message (e-mail) and> any files transmitted with it in error please delete immediately and> advise Mantel Solutions on 07 3848 0001.
> -> Take Surveys. Earn Cash. Influence the Future of IT> Join SourceForge.net's Techsay panel and you'll get the chance to share
> your> opinions on IT & business topics through brief surveys -- and earn cash> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
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Re: [iText-questions] IText doesn't seem to be thread safe?
I suspect that it's a problem with the server configuration. The app server
can work in two modes: one where each request creates a new instance of the
servlet and another where the same instance is used by all the requests.
Your server is configured for the latter. Just guessing.
Paulo
- Original Message -
From: "Peter Wilkinson" <[EMAIL PROTECTED]>
To:
Sent: Thursday, July 20, 2006 4:36 AM
Subject: [iText-questions] IText doesn't seem to be thread safe?
> I've written a jsp page that produces a PDF using iText and it work great
> until 2 people try and run the report at the same time.
>
> I get a variety of errors including
>
> DocumentException : Document is closed.
> ConcurrentModficationException
> NullPointerException
>
> as well as pdf's that are corrupt.
>
> I haven't declared a single thing on the page as being static. All the
> exceptions are generated when trying to call a Document method so I'm
> wondering if maybe the document object isn't thread safe?
>
> This is my document creation code.
>
> document = new Document(PageSize.A4.rotate());
> baseFont = BaseFont.createFont("Helvetica", BaseFont.WINANSI, false);
> font = new Font(baseFont, defaultFontSize);
> totalFont = new Font(baseFont, 9);
> totalFont.setStyle(Font.BOLD);
> heading1Font = new Font(baseFont, 20, Font.BOLDITALIC, new Color(0, 0,
> 0));
> heading2Font = new Font(baseFont, 17, Font.BOLDITALIC, new Color(0, 0,
> 0));
> heading3Font = new Font(baseFont, 14, Font.BOLDITALIC, new Color(0, 0,
> 0));
> defaultLayoutCell = new Cell();
> defaultLayoutCell.setBorder(Rectangle.NO_BORDER);
> ByteArrayOutputStream baos = new ByteArrayOutputStream();
> writer = PdfWriter.getInstance(document, baos);
> //writer.setEncryption(false, "", "", PdfWriter.AllowCopy |
> PdfWriter.AllowPrinting);
> PageEventHandler pageEventHandler = new PageEventHandler();
> writer.setPageEvent(pageEventHandler);
> writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);
> // step 3: we open the document
> document.open();
>
> Regards
>
> Peter Wilkinson
> System Developer
> Mantel Solutions Pty Ltd
>
> PO Box 98, 35 Hamilton Road
> Moorooka QLD 4105
>
> P: +61 7 3848 0001
> F: +61 7 3392 9923
> W: www.mantel.com.au
>
> The information contained in this electronic message (e-mail) and any
> files transmitted with it, is intended for the named recipients only. It
> may contain privileged and or confidential information and if you are not
> the intended recipient you must not copy distribute or take any action in
> reliance on it. If you have received this electronic message (e-mail) and
> any files transmitted with it in error please delete immediately and
> advise Mantel Solutions on 07 3848 0001.
> -
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share
> your
> opinions on IT & business topics through brief surveys -- and earn cash
> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> ___
> iText-questions mailing list
> iText-questions@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/itext-questions
>
-
Take Surveys. Earn Cash. Influence the Future of IT
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Re: [iText-questions] IText doesn't seem to be thread safe?
Peter Wilkinson wrote: > It is declared in the jsp file like > > <%! > Document document; > %> Why are you using JSP to create a binary data file? If your PDFs are corrupt, maybe you shouldn't look in the direction of thread safeness, maybe you are experiencing a completely different problem. Just like other mailinglist subscribers we are using iText at Ghent University in a multithreaded environment. About 800 professors and their staff are generating student grading lists using the same web app since 1999. We would have had some serious problems by now if we experienced the same problems you are reporting. best regards, Bruno - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions
Re: [iText-questions] IText doesn't seem to be thread safe?
It is declared
in the jsp file like
<%!
Document document;
%>
Regards
Peter Wilkinson
System Developer
Mantel Solutions
Pty Ltd
PO Box 98,
35 Hamilton Road
Moorooka QLD
4105
P: +61 7 3848
0001
F: +61 7 3392
9923
W: www.mantel.com.au
The information
contained in this electronic message (e-mail)
and any files transmitted with it, is intended
for the named recipients only. It may
contain privileged and or confidential information
and if you are not the intended recipient
you must not copy distribute or take any
action in reliance on it. If you have received
this electronic message (e-mail) and any
files transmitted with it in error please
delete immediately and advise Mantel Solutions
on 07 3848 0001.
--- Original
Message ---
From: "Eliasen Jan" <[EMAIL PROTECTED]>
To: "Post all your questions
about iText here"
Date: Thu, 20 Jul 2006 08:38:18
+0200
Subject: Re: [iText-questions]
IText doesn't seem to be thread safe?
Hi
I am not
a java expert, but I think that the code
line you have posted doesn't prove anything.
We need to se where you ahve declared the
"document" variable and not where you assign
something to it.
Med venlig
hilsenJan Eliasen
WM-dataFredrik Bajers Vej 19220 Aalborg ØstTel.: +45 9630 5800,
direkte: +45 9630 5818Mobil: +45 2518
8024, fax: +45 9630 5805mailto: [EMAIL PROTECTED]http://www.wmdata.dk
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
On Behalf Of Peter WilkinsonSent:
20. juli 2006 06:05To: Post all
your questions about iText hereSubject:
Re: [iText-questions] IText doesn't seem
to be thread safe?
I don't see
how that can be with the code I've given?
The document
is created with
document = new Document(PageSize.A4.rotate());
Regards
Peter Wilkinson
System Developer
Mantel Solutions
Pty Ltd
PO Box 98,
35 Hamilton Road
Moorooka QLD
4105
P: +61 7 3848
0001
F: +61 7 3392
9923
W: www.mantel.com.au
The information
contained in this electronic message (e-mail)
and any files transmitted with it, is intended
for the named recipients only. It may
contain privileged and or confidential information
and if you are not the intended recipient
you must not copy distribute or take any
action in reliance on it. If you have received
this electronic message (e-mail) and any
files transmitted with it in error please
delete immediately and advise Mantel Solutions
on 07 3848 0001.
--- Original
Message ---
From: "David Thielen" <[EMAIL PROTECTED]>
To: "'Post all your questions
about iText here'"
Date: Wed, 19 Jul 2006 21:48:21
-0600
Subject: Re: [iText-questions]
IText doesn't seem to be thread safe?
We run 20
threads at once as part of our unit test
with no problems. My guess is that somehow
it is using the same Document object in each
thread (which is wrong).
thanks -
dave
David
Thielen
www.windwardreports.com
303-499-2544
x1185
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
On Behalf Of Peter WilkinsonSent:
Wednesday, July 19, 2006 9:36 PMTo:
itext-questions@lists.sourceforge.netSubject:
[iText-questions] IText doesn't seem to be
thread safe?
I've written
a jsp page that produces a PDF using iText
and it work great until 2 people try and
run the report at the same time.
I get a variety
of errors including
DocumentException
: Document is closed.
ConcurrentModficationException
NullPointerException
as well as
pdf's that are corrupt.
I haven't declared
a single thing on the page as being static.
All the exceptions are generated when trying
to call a Document method so I'm wondering
if maybe the document object isn't thread
safe?
This is my
document creation code.
document = new Document(PageSize.A4.rotate());
baseFont = BaseFont.createFont("Helvetica",
BaseFont.WINANSI, false); font
= new Font(baseFont, defaultFontSize); totalFont
= new Font(baseFont, 9); totalFont.setStyle(Font.BOLD); heading1Font
= new Font(baseFont, 20, Font.BOLDITALIC,
new Color(0, 0, 0)); heading2Font
= new Font(baseFont, 17, Font.BOLDITALIC,
new Color(0, 0, 0)); heading3Font
= new Font(baseFont, 14, Font.BOLDITALIC,
new Color(0, 0, 0)); defaultLayoutCell
= new Cell(); defaultLayoutCell.setBorder(Rectangle.NO_BORDER);
ByteArrayOutputStream baos = new
ByteArrayOutputStream(); writer
= PdfWriter.getInstance(document, baos); //writer.setEncryption(false,
"", "", PdfWriter.AllowCopy | PdfWriter.AllowPrinting);
PageEventHandler pageEventHandler
= new PageEventHandler();
writer.setPageEvent(pageEventHandler); writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);
// step 3: we open the document document.open();
Regards
Peter Wilkinson
Syste
Re: [iText-questions] IText doesn't seem to be thread safe?
Hi
I am not a java expert, but I think that the code line you
have posted doesn't prove anything. We need to se where you ahve declared the
"document" variable and not where you assign something to
it.
Med venlig
hilsenJan
Eliasen
WM-dataFredrik Bajers Vej 19220
Aalborg ØstTel.: +45 9630 5800, direkte:
+45 9630 5818Mobil: +45 2518 8024, fax: +45 9630 5805mailto:
[EMAIL PROTECTED]http://www.wmdata.dk
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Peter
WilkinsonSent: 20. juli 2006 06:05To: Post all your
questions about iText hereSubject: Re: [iText-questions] IText
doesn't seem to be thread safe?
I don't see how that can be with the code I've
given?
The document is created with
document = new Document(PageSize.A4.rotate());
Regards
Peter Wilkinson
System Developer
Mantel Solutions Pty Ltd
PO Box 98, 35 Hamilton Road
Moorooka QLD 4105
P: +61 7 3848 0001
F: +61 7 3392 9923
W: www.mantel.com.au
The information contained in this electronic
message (e-mail) and any files transmitted with it, is intended for the named
recipients only. It may contain privileged and or confidential information
and if you are not the intended recipient you must not copy distribute or take
any action in reliance on it. If you have received this electronic message
(e-mail) and any files transmitted with it in error please delete immediately
and advise Mantel Solutions on 07 3848 0001.
--- Original Message
---
From: "David Thielen" <[EMAIL PROTECTED]>
To: "'Post all your questions about iText here'"
Date: Wed, 19 Jul 2006 21:48:21 -0600
Subject: Re: [iText-questions] IText doesn't seem to be thread
safe?
We run 20 threads at once as part of our unit test with no
problems. My guess is that somehow it is using the same Document object in each
thread (which is wrong).
thanks - dave
David Thielen
www.windwardreports.com
303-499-2544 x1185
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Peter
WilkinsonSent: Wednesday, July 19, 2006 9:36 PMTo:
itext-questions@lists.sourceforge.netSubject: [iText-questions] IText
doesn't seem to be thread safe?
I've written a jsp page that produces a PDF using
iText and it work great until 2 people try and run the report at the same
time.
I get a variety of errors including
DocumentException : Document is
closed.
ConcurrentModficationException
NullPointerException
as well as pdf's that are corrupt.
I haven't declared a single thing on the page as
being static. All the exceptions are generated when trying to call a
Document method so I'm wondering if maybe the document object isn't thread
safe?
This is my document creation code.
document = new Document(PageSize.A4.rotate());
baseFont = BaseFont.createFont("Helvetica", BaseFont.WINANSI,
false); font = new Font(baseFont,
defaultFontSize); totalFont = new Font(baseFont,
9); totalFont.setStyle(Font.BOLD); heading1Font = new
Font(baseFont, 20, Font.BOLDITALIC, new Color(0, 0, 0)); heading2Font =
new Font(baseFont, 17, Font.BOLDITALIC, new Color(0, 0,
0)); heading3Font = new Font(baseFont, 14, Font.BOLDITALIC, new
Color(0, 0, 0)); defaultLayoutCell = new
Cell(); defaultLayoutCell.setBorder(Rectangle.NO_BORDER);
ByteArrayOutputStream baos = new
ByteArrayOutputStream(); writer = PdfWriter.getInstance(document,
baos); //writer.setEncryption(false, "", "", PdfWriter.AllowCopy
| PdfWriter.AllowPrinting);
PageEventHandler pageEventHandler = new PageEventHandler();
writer.setPageEvent(pageEventHandler); writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);
// step 3: we open the document document.open();
Regards
Peter Wilkinson
System Developer
Mantel Solutions Pty Ltd
PO Box 98, 35 Hamilton Road
Moorooka QLD 4105
P: +61 7 3848 0001
F: +61 7 3392 9923
W: www.mantel.com.au
The information contained in this electronic
message (e-mail) and any files transmitted with it, is intended for the named
recipients only. It may contain privileged and or confidential information
and if you are not the intended recipient you must not copy distribute or take
any action in reliance on it. If you have received this electronic message
(e-mail) and any files transmitted with it in error please delete immediately
and advise Mantel Solutions on 07 3848 0001.
-Take
Surveys. Earn Cash. Influence the Future of ITJoin SourceForge.net's Techsay
panel and you'll get the chance to share youropinions on IT & business
topics through brief surveys -- and earn
cashhttp://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
Re: [iText-questions] IText doesn't seem to be thread safe?
I don't see
how that can be with the code I've given?
The document
is created with
document = new Document(PageSize.A4.rotate());
Regards
Peter Wilkinson
System Developer
Mantel Solutions
Pty Ltd
PO Box 98,
35 Hamilton Road
Moorooka QLD
4105
P: +61 7 3848
0001
F: +61 7 3392
9923
W: www.mantel.com.au
The information
contained in this electronic message (e-mail)
and any files transmitted with it, is intended
for the named recipients only. It may
contain privileged and or confidential information
and if you are not the intended recipient
you must not copy distribute or take any
action in reliance on it. If you have received
this electronic message (e-mail) and any
files transmitted with it in error please
delete immediately and advise Mantel Solutions
on 07 3848 0001.
--- Original
Message ---
From: "David Thielen" <[EMAIL PROTECTED]>
To: "'Post all your questions
about iText here'"
Date: Wed, 19 Jul 2006 21:48:21
-0600
Subject: Re: [iText-questions]
IText doesn't seem to be thread safe?
We run 20
threads at once as part of our unit test
with no problems. My guess is that somehow
it is using the same Document object in each
thread (which is wrong).
thanks -
dave
David
Thielen
www.windwardreports.com
303-499-2544
x1185
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
On Behalf Of Peter WilkinsonSent:
Wednesday, July 19, 2006 9:36 PMTo:
itext-questions@lists.sourceforge.netSubject:
[iText-questions] IText doesn't seem to be
thread safe?
I've written
a jsp page that produces a PDF using iText
and it work great until 2 people try and
run the report at the same time.
I get a variety
of errors including
DocumentException
: Document is closed.
ConcurrentModficationException
NullPointerException
as well as
pdf's that are corrupt.
I haven't declared
a single thing on the page as being static.
All the exceptions are generated when trying
to call a Document method so I'm wondering
if maybe the document object isn't thread
safe?
This is my
document creation code.
document = new Document(PageSize.A4.rotate());
baseFont = BaseFont.createFont("Helvetica",
BaseFont.WINANSI, false); font
= new Font(baseFont, defaultFontSize); totalFont
= new Font(baseFont, 9); totalFont.setStyle(Font.BOLD); heading1Font
= new Font(baseFont, 20, Font.BOLDITALIC,
new Color(0, 0, 0)); heading2Font
= new Font(baseFont, 17, Font.BOLDITALIC,
new Color(0, 0, 0)); heading3Font
= new Font(baseFont, 14, Font.BOLDITALIC,
new Color(0, 0, 0)); defaultLayoutCell
= new Cell(); defaultLayoutCell.setBorder(Rectangle.NO_BORDER);
ByteArrayOutputStream baos = new
ByteArrayOutputStream(); writer
= PdfWriter.getInstance(document, baos); //writer.setEncryption(false,
"", "", PdfWriter.AllowCopy | PdfWriter.AllowPrinting);
PageEventHandler pageEventHandler
= new PageEventHandler();
writer.setPageEvent(pageEventHandler); writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);
// step 3: we open the document document.open();
Regards
Peter Wilkinson
System Developer
Mantel Solutions
Pty Ltd
PO Box 98,
35 Hamilton Road
Moorooka QLD
4105
P: +61 7 3848
0001
F: +61 7 3392
9923
W: www.mantel.com.au
The information
contained in this electronic message (e-mail)
and any files transmitted with it, is intended
for the named recipients only. It may
contain privileged and or confidential information
and if you are not the intended recipient
you must not copy distribute or take any
action in reliance on it. If you have received
this electronic message (e-mail) and any
files transmitted with it in error please
delete immediately and advise Mantel Solutions
on 07 3848 0001.
-Take
Surveys. Earn Cash. Influence the Future
of ITJoin SourceForge.net's Techsay panel
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Re: [iText-questions] IText doesn't seem to be thread safe?
We run 20 threads at once as part of our unit test with no
problems. My guess is that somehow it is using the same Document object in each
thread (whihc is wrong).
thanks - dave
David Thielen
www.windwardreports.com
303-499-2544 x1185
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Peter
WilkinsonSent: Wednesday, July 19, 2006 9:36 PMTo:
itext-questions@lists.sourceforge.netSubject: [iText-questions] IText
doesn't seem to be thread safe?
I've written a jsp page that produces a PDF using
iText and it work great until 2 people try and run the report at the same
time.
I get a variety of errors including
DocumentException : Document is
closed.
ConcurrentModficationException
NullPointerException
as well as pdf's that are corrupt.
I haven't declared a single thing on the page as
being static. All the exceptions are generated when trying to call a
Document method so I'm wondering if maybe the document object isn't thread
safe?
This is my document creation code.
document = new Document(PageSize.A4.rotate());
baseFont = BaseFont.createFont("Helvetica", BaseFont.WINANSI,
false); font = new Font(baseFont,
defaultFontSize); totalFont = new Font(baseFont,
9); totalFont.setStyle(Font.BOLD); heading1Font = new
Font(baseFont, 20, Font.BOLDITALIC, new Color(0, 0, 0)); heading2Font =
new Font(baseFont, 17, Font.BOLDITALIC, new Color(0, 0,
0)); heading3Font = new Font(baseFont, 14, Font.BOLDITALIC, new
Color(0, 0, 0)); defaultLayoutCell = new
Cell(); defaultLayoutCell.setBorder(Rectangle.NO_BORDER);
ByteArrayOutputStream baos = new
ByteArrayOutputStream(); writer = PdfWriter.getInstance(document,
baos); //writer.setEncryption(false, "", "", PdfWriter.AllowCopy
| PdfWriter.AllowPrinting);
PageEventHandler pageEventHandler = new PageEventHandler();
writer.setPageEvent(pageEventHandler); writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);
// step 3: we open the document document.open();
Regards
Peter Wilkinson
System Developer
Mantel Solutions Pty Ltd
PO Box 98, 35 Hamilton Road
Moorooka QLD 4105
P: +61 7 3848 0001
F: +61 7 3392 9923
W: www.mantel.com.au
The information contained in this electronic
message (e-mail) and any files transmitted with it, is intended for the named
recipients only. It may contain privileged and or confidential information
and if you are not the intended recipient you must not copy distribute or take
any action in reliance on it. If you have received this electronic message
(e-mail) and any files transmitted with it in error please delete immediately
and advise Mantel Solutions on 07 3848 0001.
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[iText-questions] IText doesn't seem to be thread safe?
I've written
a jsp page that produces a PDF using iText
and it work great until 2 people try and
run the report at the same time.
I get a variety
of errors including
DocumentException
: Document is closed.
ConcurrentModficationException
NullPointerException
as well as
pdf's that are corrupt.
I haven't declared
a single thing on the page as being static.
All the exceptions are generated when trying
to call a Document method so I'm wondering
if maybe the document object isn't thread
safe?
This is my
document creation code.
document = new Document(PageSize.A4.rotate());
baseFont = BaseFont.createFont("Helvetica",
BaseFont.WINANSI, false); font
= new Font(baseFont, defaultFontSize); totalFont
= new Font(baseFont, 9); totalFont.setStyle(Font.BOLD); heading1Font
= new Font(baseFont, 20, Font.BOLDITALIC,
new Color(0, 0, 0)); heading2Font
= new Font(baseFont, 17, Font.BOLDITALIC,
new Color(0, 0, 0)); heading3Font
= new Font(baseFont, 14, Font.BOLDITALIC,
new Color(0, 0, 0)); defaultLayoutCell
= new Cell(); defaultLayoutCell.setBorder(Rectangle.NO_BORDER);
ByteArrayOutputStream baos = new
ByteArrayOutputStream(); writer
= PdfWriter.getInstance(document, baos); //writer.setEncryption(false,
"", "", PdfWriter.AllowCopy | PdfWriter.AllowPrinting);
PageEventHandler pageEventHandler
= new PageEventHandler();
writer.setPageEvent(pageEventHandler); writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);
// step 3: we open the document document.open();
Regards
Peter Wilkinson
System Developer
Mantel Solutions
Pty Ltd
PO Box 98,
35 Hamilton Road
Moorooka QLD
4105
P: +61 7 3848
0001
F: +61 7 3392
9923
W: www.mantel.com.au
The information
contained in this electronic message (e-mail)
and any files transmitted with it, is intended
for the named recipients only. It may
contain privileged and or confidential information
and if you are not the intended recipient
you must not copy distribute or take any
action in reliance on it. If you have received
this electronic message (e-mail) and any
files transmitted with it in error please
delete immediately and advise Mantel Solutions
on 07 3848 0001.
-
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
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