Re: Fop multiple thread generate performance
[email protected] Thu, 18 Jul 2024 08:44:31 +0200
| Newsgroups | gmane.text.xml.fop.user |
|---|---|
| Message-ID | <[email protected]> |
--------------gXNHPd0m1xmiFYdtUJK4rE1F
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Hi,
apart from the FopFactory which Simon mentioned,
I believe you can also do the same for TransformerFactory.
Also, you could consider caching the Stylesheet Templates.
They are Threadsafe & can be used by multiple Threads concurrently.
I'm a bit rusty, but below is some pseudo-code to illustrate some of that.
All the best,
Dave
packagefop.example;
importjava.io.ByteArrayInputStream;
importjava.io.File;
importjava.io.IOException;
importjava.io.InputStream;
importjava.net.URI;
importjava.util.HashMap;
importjavax.xml.transform.Templates;
importjavax.xml.transform.TransformerConfigurationException;
importjavax.xml.transform.TransformerFactory;
importjavax.xml.transform.stream.StreamSource;
importorg.apache.fop.apps.FopFactory;
importorg.apache.fop.apps.FopFactoryBuilder;
publicclassFopPseudoCode {
/*
* TODOa very simple Templates Cache. You might want to add more features
like Timestamp checking
*/
privatestaticfinalHashMap <String, Templates> TEMPLATES_CACHE=
newHashMap<>();
privatestaticfinalThreadLocal<TransformerFactory> LOCAL_TX_FACTORY=
newThreadLocal<>() {
@Override
protectedTransformerFactory initialValue() {
finalTransformerFactory factory= TransformerFactory.newInstance();
/*
* TODOCustomize your factory here
*/
returnfactory;
}
};
privatestaticfinalThreadLocal<FopFactory> LOCAL_FOP_FACTORY=
newThreadLocal<>() {
@Override
protectedFopFactory initialValue() {
finalURI defaultBaseURI= newFile(".").toURI();
returnnewFopFactoryBuilder(defaultBaseURI)
/*
* TODOCustomize your FopFactoryBuilder here
*/
.build();
}
};
publicstaticvoidmain(finalString[] args) throwsException {
finalTransformerFactory txFactory= LOCAL_TX_FACTORY.get();
finalFopFactory fopFactory= LOCAL_FOP_FACTORY.get();
finalTemplates docTemplates= readStylesheetTemplates(txFactory,
"Invoice.xslt");
finalbyte[] docBytes= readDocBytes( "Invoice.xml");
finalbyte[] foBytes= generateFO(docBytes, docTemplates);
finalbyte[] pdfBytes= generatePDFfromFO(txFactory, foBytes, fopFactory);
}
privatestaticfinalTemplates
readStylesheetTemplates(finalTransformerFactory factory, finalString
fileName) throwsTransformerConfigurationException, IOException {
finalTemplates templatesCached= TEMPLATES_CACHE.get(fileName);
if(null!= templatesCached) {
returntemplatesCached;
}
try(finalInputStream ist=
newByteArrayInputStream(readDocStylesheet(fileName)))
{
finalTemplates templatesNew= factory.newTemplates(newStreamSource(ist));
TEMPLATES_CACHE.put(fileName, templatesNew);
returntemplatesNew;
}
}
privatestaticfinalbyte[] readDocStylesheet(finalString fileName) {
return"<xsl:stylesheet>...".getBytes();
}
privatestaticfinalbyte[] readDocBytes(finalString fileName) {
return"<Invoice>...".getBytes();
}
privatestaticbyte[] generateFO(finalbyte[] xmlDataBytes, finalTemplates
templates) {
return"<fo:root xmlns:fo=...".getBytes();
}
privatestaticbyte[] generatePDFfromFO(finalTransformerFactory factory,
finalbyte[] bytesFO, finalFopFactory fopFactory) {
return"%PDF-1.4...".getBytes();
}
}
On 17/07/2024 08:16, Simon Steiner wrote:
>
> Hi,
>
> You can use multiple threads, each thread with their own fopfactory.
>
> Thanks
>
> *From:*Allen Wang <[email protected]>
> *Sent:* 14 July 2024 08:39
> *To:* fop-users <[email protected]>
> *Cc:* 1289495104 <[email protected]>
> *Subject:* Fop multiple thread generate performance
>
> Dear Fop Doctor.
>
> May I ask if we use mutiple thread to generate more output files. if
> we can have any method to improve the performance.
>
> Kindly, Could you give us some advise?
>
> Thanks a lot.
>
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<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<body>
Hi,
<div class="moz-forward-container"> <br>
apart from the FopFactory which Simon mentioned,<br>
I believe you can also do the same for TransformerFactory.<br>
<br>
Also, you could consider caching the Stylesheet Templates.<br>
They are Threadsafe & can be used by multiple Threads
concurrently.<br>
<br>
I'm a bit rusty, but below is some pseudo-code to illustrate some
of that.<br>
<br>
All the best,<br>
Dave<br>
<br>
<div style="background-color:#ffffff;padding:0px 0px 0px 2px;">
<div
style="color:#000000;background-color:#ffffff;font-family:"Consolas";font-size:10pt;white-space:pre;"><div
style="background-color:#ffffff;padding:0px 0px 0px 2px;"><div
style="color:#000000;background-color:#ffffff;font-family:"Consolas";font-size:10pt;white-space:pre;"><p
style="margin:0;"><span style="color:#7f0055;font-weight:bold;">package</span><span
style="color:#000000;"> fop.example;</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#7f0055;font-weight:bold;">import</span><span
style="color:#000000;"> java.io.ByteArrayInputStream;</span></p><p
style="margin:0;"><span style="color:#7f0055;font-weight:bold;">import</span><span
style="color:#000000;"> java.io.File;</span></p><p
style="margin:0;"><span style="color:#7f0055;font-weight:bold;">import</span><span
style="color:#000000;"> java.io.IOException;</span></p><p
style="margin:0;"><span style="color:#7f0055;font-weight:bold;">import</span><span
style="color:#000000;"> java.io.InputStream;</span></p><p
style="margin:0;"><span style="color:#7f0055;font-weight:bold;">import</span><span
style="color:#000000;"> java.net.URI;</span></p><p
style="margin:0;"><span style="color:#7f0055;font-weight:bold;">import</span><span
style="color:#000000;"> java.util.HashMap;</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#7f0055;font-weight:bold;">import</span><span
style="color:#000000;"> javax.xml.transform.Templates;</span></p><p
style="margin:0;"><span style="color:#7f0055;font-weight:bold;">import</span><span
style="color:#000000;"> javax.xml.transform.TransformerConfigurationException;</span></p><p
style="margin:0;"><span style="color:#7f0055;font-weight:bold;">import</span><span
style="color:#000000;"> javax.xml.transform.TransformerFactory;</span></p><p
style="margin:0;"><span style="color:#7f0055;font-weight:bold;">import</span><span
style="color:#000000;"> javax.xml.transform.stream.StreamSource;</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#7f0055;font-weight:bold;">import</span><span
style="color:#000000;"> org.apache.fop.apps.FopFactory;</span></p><p
style="margin:0;"><span style="color:#7f0055;font-weight:bold;">import</span><span
style="color:#000000;"> org.apache.fop.apps.FopFactoryBuilder;</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#7f0055;font-weight:bold;">public</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">class</span><span
style="color:#000000;"> FopPseudoCode {</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#3f7f5f;">/*</span></p><p style="margin:0;"><span
style="color:#3f7f5f;"> * </span><span
style="color:#7f9fbf;font-weight:bold;">TODO</span><span
style="color:#3f7f5f;"> a very simple Templates Cache. You might want to add more features like Timestamp checking</span></p><p
style="margin:0;"><span style="color:#3f7f5f;"> */</span></p><p
style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">private</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">static</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> HashMap <String, Templates> </span><span
style="color:#0000c0;font-style:italic;font-weight:bold;">TEMPLATES_CACHE</span><span
style="color:#000000;"> = </span><span
style="color:#7f0055;font-weight:bold;">new</span><span
style="color:#000000;"> HashMap<>();</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">private</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">static</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> ThreadLocal<TransformerFactory> </span><span
style="color:#0000c0;font-style:italic;font-weight:bold;">LOCAL_TX_FACTORY</span><span
style="color:#000000;"> = </span><span
style="color:#7f0055;font-weight:bold;">new</span><span
style="color:#000000;"> ThreadLocal<>() {</span></p><p
style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#646464;">@</span><span style="color:#646464;">Override</span></p><p
style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">protected</span><span
style="color:#000000;"> TransformerFactory initialValue() {</span></p><p
style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> TransformerFactory </span><span
style="color:#6a3e3e;">factory</span><span
style="color:#000000;"> = TransformerFactory.</span><span
style="color:#000000;font-style:italic;">newInstance</span><span
style="color:#000000;">();</span></p><p style="margin:0;"><span
style="color:#000000;"> </span><span
style="color:#3f7f5f;">/*</span></p><p style="margin:0;"><span
style="color:#3f7f5f;"> * </span><span
style="color:#7f9fbf;font-weight:bold;">TODO</span><span
style="color:#3f7f5f;"> Customize your factory here</span></p><p
style="margin:0;"><span style="color:#3f7f5f;"> */</span></p><p
style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">return</span><span
style="color:#000000;"> </span><span style="color:#6a3e3e;">factory</span><span
style="color:#000000;">;</span></p><p style="margin:0;"><span
style="color:#000000;"> }</span></p><p style="margin:0;"><span
style="color:#000000;"> };</span></p><p style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">private</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">static</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> ThreadLocal<FopFactory> </span><span
style="color:#0000c0;font-style:italic;font-weight:bold;">LOCAL_FOP_FACTORY</span><span
style="color:#000000;"> = </span><span
style="color:#7f0055;font-weight:bold;">new</span><span
style="color:#000000;"> ThreadLocal<>() {</span></p><p
style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#646464;">@</span><span style="color:#646464;">Override</span></p><p
style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">protected</span><span
style="color:#000000;"> FopFactory initialValue() {</span></p><p
style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> URI </span><span
style="color:#6a3e3e;">defaultBaseURI</span><span
style="color:#000000;"> = </span><span
style="color:#7f0055;font-weight:bold;">new</span><span
style="color:#000000;"> File(</span><span style="color:#2a00ff;">"."</span><span
style="color:#000000;">).toURI();</span></p><p style="margin:0;"><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">return</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">new</span><span
style="color:#000000;"> FopFactoryBuilder(</span><span
style="color:#6a3e3e;">defaultBaseURI</span><span
style="color:#000000;">)</span></p><p style="margin:0;"><span
style="color:#000000;"> </span><span
style="color:#3f7f5f;">/*</span></p><p style="margin:0;"><span
style="color:#3f7f5f;"> * </span><span
style="color:#7f9fbf;font-weight:bold;">TODO</span><span
style="color:#3f7f5f;"> Customize your FopFactoryBuilder here</span></p><p
style="margin:0;"><span style="color:#3f7f5f;"> */</span></p><p
style="margin:0;"><span style="color:#000000;"> .build();</span></p><p
style="margin:0;"><span style="color:#000000;"> }</span></p><p
style="margin:0;"><span style="color:#000000;"> };</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">public</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">static</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">void</span><span
style="color:#000000;"> main(</span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> String[] </span><span
style="color:#6a3e3e;">args</span><span style="color:#000000;">) </span><span
style="color:#7f0055;font-weight:bold;">throws</span><span
style="color:#000000;"> Exception {</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> TransformerFactory </span><span
style="color:#6a3e3e;">txFactory</span><span
style="color:#000000;"> = </span><span
style="color:#0000c0;font-style:italic;font-weight:bold;">LOCAL_TX_FACTORY</span><span
style="color:#000000;"> .get();</span></p><p style="margin:0;"><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> FopFactory </span><span
style="color:#6a3e3e;">fopFactory</span><span
style="color:#000000;"> = </span><span
style="color:#0000c0;font-style:italic;font-weight:bold;">LOCAL_FOP_FACTORY</span><span
style="color:#000000;">.get();</span></p><p style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> Templates </span><span
style="color:#6a3e3e;">docTemplates</span><span
style="color:#000000;"> = </span><span
style="color:#000000;font-style:italic;">readStylesheetTemplates</span><span
style="color:#000000;">(</span><span style="color:#6a3e3e;">txFactory</span><span
style="color:#000000;">, </span><span style="color:#2a00ff;">"Invoice.xslt"</span><span
style="color:#000000;">);</span></p><p style="margin:0;"><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">byte</span><span
style="color:#000000;">[] </span><span
style="color:#6a3e3e;">docBytes</span><span
style="color:#000000;"> = </span><span
style="color:#000000;font-style:italic;">readDocBytes</span><span
style="color:#000000;"> ( </span><span
style="color:#2a00ff;">"Invoice.xml"</span><span
style="color:#000000;">);</span></p><p style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">byte</span><span
style="color:#000000;">[] </span><span
style="color:#6a3e3e;">foBytes</span><span
style="color:#000000;"> = </span><span
style="color:#000000;font-style:italic;">generateFO</span><span
style="color:#000000;"> (</span><span
style="color:#6a3e3e;">docBytes</span><span
style="color:#000000;">, </span><span style="color:#6a3e3e;">docTemplates</span><span
style="color:#000000;">);</span></p><p style="margin:0;"><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">byte</span><span
style="color:#000000;">[] </span><span
style="color:#6a3e3e;text-decoration:underline;text-decoration-color:#f4c82d;text-decoration-style:wavy;">pdfBytes</span><span
style="color:#000000;"> = </span><span
style="color:#000000;font-style:italic;">generatePDFfromFO</span><span
style="color:#000000;"> (</span><span
style="color:#6a3e3e;">txFactory</span><span
style="color:#000000;">, </span><span style="color:#6a3e3e;">foBytes</span><span
style="color:#000000;">, </span><span style="color:#6a3e3e;">fopFactory</span><span
style="color:#000000;">);</span></p><p style="margin:0;"><span
style="color:#000000;"> }</span></p><p style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">private</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">static</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> Templates readStylesheetTemplates(</span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> TransformerFactory </span><span
style="color:#6a3e3e;">factory</span><span
style="color:#000000;">, </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> String </span><span
style="color:#6a3e3e;">fileName</span><span
style="color:#000000;">) </span><span
style="color:#7f0055;font-weight:bold;">throws</span><span
style="color:#000000;"> TransformerConfigurationException, IOException {</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> Templates </span><span
style="color:#6a3e3e;">templatesCached</span><span
style="color:#000000;"> = </span><span
style="color:#0000c0;font-style:italic;font-weight:bold;">TEMPLATES_CACHE</span><span
style="color:#000000;">.get(</span><span style="color:#6a3e3e;">fileName</span><span
style="color:#000000;">);</span></p><p style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">if</span><span
style="color:#000000;"> (</span><span
style="color:#7f0055;font-weight:bold;">null</span><span
style="color:#000000;"> != </span><span
style="color:#6a3e3e;">templatesCached</span><span
style="color:#000000;">) {</span></p><p style="margin:0;"><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">return</span><span
style="color:#000000;"> </span><span
style="color:#6a3e3e;">templatesCached</span><span
style="color:#000000;">;</span></p><p style="margin:0;"><span
style="color:#000000;"> }</span></p><p style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">try</span><span
style="color:#000000;"> (</span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> InputStream </span><span
style="color:#6a3e3e;">ist</span><span style="color:#000000;"> = </span><span
style="color:#7f0055;font-weight:bold;">new</span><span
style="color:#000000;"> ByteArrayInputStream(</span><span
style="color:#000000;font-style:italic;">readDocStylesheet</span><span
style="color:#000000;">(</span><span style="color:#6a3e3e;">fileName</span><span
style="color:#000000;">)))</span></p><p style="margin:0;"><span
style="color:#000000;"> {</span></p><p style="margin:0;"><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> Templates </span><span
style="color:#6a3e3e;">templatesNew</span><span
style="color:#000000;"> = </span><span style="color:#6a3e3e;">factory</span><span
style="color:#000000;">.newTemplates(</span><span
style="color:#7f0055;font-weight:bold;">new</span><span
style="color:#000000;"> StreamSource(</span><span
style="color:#6a3e3e;">ist</span><span style="color:#000000;">));</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#0000c0;font-style:italic;font-weight:bold;">TEMPLATES_CACHE</span><span
style="color:#000000;">.put(</span><span style="color:#6a3e3e;">fileName</span><span
style="color:#000000;">, </span><span style="color:#6a3e3e;">templatesNew</span><span
style="color:#000000;">);</span></p><p style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">return</span><span
style="color:#000000;"> </span><span
style="color:#6a3e3e;">templatesNew</span><span
style="color:#000000;">;</span></p><p style="margin:0;"><span
style="color:#000000;"> }</span></p><p style="margin:0;"><span
style="color:#000000;"> }</span></p><p style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">private</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">static</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">byte</span><span
style="color:#000000;">[] readDocStylesheet(</span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> String </span><span
style="color:#6a3e3e;">fileName</span><span
style="color:#000000;">) {</span></p><p style="margin:0;"><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">return</span><span
style="color:#000000;"> </span><span style="color:#2a00ff;">"<xsl:stylesheet>..."</span><span
style="color:#000000;">.getBytes();</span></p><p
style="margin:0;"><span style="color:#000000;"> }</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">private</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">static</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">byte</span><span
style="color:#000000;">[] readDocBytes(</span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> String </span><span
style="color:#6a3e3e;">fileName</span><span
style="color:#000000;">) {</span></p><p style="margin:0;"><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">return</span><span
style="color:#000000;"> </span><span style="color:#2a00ff;">"<Invoice>..."</span><span
style="color:#000000;">.getBytes();</span></p><p
style="margin:0;"><span style="color:#000000;"> }</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">private</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">static</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">byte</span><span
style="color:#000000;">[] generateFO(</span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">byte</span><span
style="color:#000000;">[] </span><span style="color:#6a3e3e;">xmlDataBytes</span><span
style="color:#000000;">, </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> Templates </span><span
style="color:#6a3e3e;">templates</span><span
style="color:#000000;">) {</span></p><p style="margin:0;"><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">return</span><span
style="color:#000000;"> </span><span style="color:#2a00ff;">"<fo:root xmlns:fo=..."</span><span
style="color:#000000;">.getBytes();</span></p><p
style="margin:0;"><span style="color:#000000;"> }</span></p><p
style="margin:0;">
</p><p style="margin:0;"><span style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">private</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">static</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">byte</span><span
style="color:#000000;">[] generatePDFfromFO(</span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> TransformerFactory </span><span
style="color:#6a3e3e;">factory</span><span
style="color:#000000;">, </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">byte</span><span
style="color:#000000;">[] </span><span style="color:#6a3e3e;">bytesFO</span><span
style="color:#000000;">, </span><span
style="color:#7f0055;font-weight:bold;">final</span><span
style="color:#000000;"> FopFactory </span><span
style="color:#6a3e3e;">fopFactory</span><span
style="color:#000000;">) {</span></p><p style="margin:0;"><span
style="color:#000000;"> </span><span
style="color:#7f0055;font-weight:bold;">return</span><span
style="color:#000000;"> </span><span style="color:#2a00ff;">"%PDF-1.4..."</span><span
style="color:#000000;">.getBytes();</span></p><p
style="margin:0;"><span style="color:#000000;"> }</span></p><p
style="margin:0;"><span style="color:#000000;">}</span></p><p
style="margin:0;">
</p></div></div></div>
</div>
<br>
<br>
<div class="moz-cite-prefix">On 17/07/2024 08:16, Simon Steiner
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:[email protected]">
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<div class="WordSection1">
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">You
can use multiple threads, each thread with their own
fopfactory.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span
lang="EN-US"> Allen Wang <a class="moz-txt-link-rfc2396E"
href="mailto:[email protected]"
moz-do-not-send="true"><[email protected]></a>
<br>
<b>Sent:</b> 14 July 2024 08:39<br>
<b>To:</b> fop-users <a class="moz-txt-link-rfc2396E"
href="mailto:[email protected]"
moz-do-not-send="true"><[email protected]></a><br>
<b>Cc:</b> 1289495104 <a class="moz-txt-link-rfc2396E"
href="mailto:[email protected]" moz-do-not-send="true"><[email protected]></a><br>
<b>Subject:</b> Fop multiple thread generate performance<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">Dear Fop Doctor.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">May I ask if we use mutiple thread to
generate more output files. if we can have any method to
improve the performance.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt">Kindly,
Could you give us some advise?<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Thanks a lot.<o:p></o:p></p>
</div>
</div>
</blockquote>
<br>
</div>
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