Re: Getting a list of font names without the memory hit...
The auto-detect feature creates the font cache, to save time on sunsequent calls to FOP, you can disable the cache using the setting: use-cachefalse/use-cache in your fop.xconf. I suspect the reason for the high memory consumption is your use of auto-detect feature. Though I've not replicated the issue. If your intention is to allow the user to pick any font installed on the Operating System, why not use the java.awt classes to list the available fonts instead? I've not tried it but I suspect it will use less memory as it doesn't need to load the full contents of every font in the system. Thanks, Chris On 31/07/2013 12:53, Bernard Giannetti wrote: Now I'm chasing my tail...looking at FontCachehas gotten me back to FontInfo.getFonts()! Any other ideas please?! From: thebernmeis...@hotmail.com To: fop-users@xmlgraphics.apache.org Subject: RE: Getting a list of font names without the memory hit... Date: Wed, 31 Jul 2013 21:33:14 +1000 I'm readingorg.apache.fop.fonts.FontCache now...red-faced and fingers crossed! From: thebernmeis...@hotmail.com To: fop-users@xmlgraphics.apache.org Subject: RE: Getting a list of font names without the memory hit... Date: Wed, 31 Jul 2013 21:29:59 +1000 The config file or the cache file? My config file has no fonts listed for PDF: renderer mime=application/pdf filterList valueflate/value /filterList fonts auto-detect/ /fonts /renderer Date: Wed, 31 Jul 2013 04:26:33 -0700 From: djs...@yahoo.com To: fop-users@xmlgraphics.apache.org Subject: RE: Getting a list of font names without the memory hit... Why don't you just read the config file which list all the available fonts? - To unsubscribe, e-mail: fop-users-unsubscr...@xmlgraphics.apache.org For additional commands, e-mail: fop-users-h...@xmlgraphics.apache.org
RE: Getting a list of font names without the memory hit...
Thanks Chris - simplest solution is often the best: String fonts[] = GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames(); Getting a list of fonts this way does NOT appear to impact memory at all...so much better! I don't have the use-cache tag in my config file, so I assume the cache is on by default. I did a test run of creating a PDF: With no use-cache present: memory used 111 MBWith use-cachefalse/use-cache present: memory used 330 MB I think I'll stick with the default! Thanks again, Bernard. Date: Thu, 1 Aug 2013 13:58:57 +0100 From: bowditch_ch...@hotmail.com To: fop-users@xmlgraphics.apache.org Subject: Re: Getting a list of font names without the memory hit... The auto-detect feature creates the font cache, to save time on sunsequent calls to FOP, you can disable the cache using the setting: use-cachefalse/use-cache in your fop.xconf. I suspect the reason for the high memory consumption is your use of auto-detect feature. Though I've not replicated the issue. If your intention is to allow the user to pick any font installed on the Operating System, why not use the java.awt classes to list the available fonts instead? I've not tried it but I suspect it will use less memory as it doesn't need to load the full contents of every font in the system.
RE: Getting a list of font names without the memory hit...
Why don't you just read the config file which list all the available fonts? -- View this message in context: http://apache-fop.1065347.n5.nabble.com/Getting-a-list-of-font-names-without-the-memory-hit-tp38952p38958.html Sent from the FOP - Users mailing list archive at Nabble.com. - To unsubscribe, e-mail: fop-users-unsubscr...@xmlgraphics.apache.org For additional commands, e-mail: fop-users-h...@xmlgraphics.apache.org
RE: Getting a list of font names without the memory hit...
I've done some more digging/testing and noticed that when I get the fonts
map...
FontInfo fontInfo = new FontInfo();configurator.setupFontInfo( documentHandler,
fontInfo );Map fonts = fontInfo.getFonts();
(the above essentially comes straight out of listfonts() and its subcalls)
the fontInfo.getFonts() was returning a Collections.unmodifiableMap(this.fonts)
which I initially thought was the memory hog. Well it sort of is, but it is
not the main culprit.
Noticing that this.fonts is private, I used reflection to access the this.fonts
directly (so no copy took place) and still the memory was excessive
(essentially little difference to what I've initially seen).
On digging deeper, the big memory hit is happening within
configurator.setupFontInfo( documentHandler, fontInfo );.
Let me back up and ask a couple of sanity questions...first, to reiterate: my
desktop Java application allows a user to create PDF reports (from XML and XSL)
by making direct Java calls to FOP (that is, I do NOT invoke FOP from the
command line).
1) I want the user to be able to choose the name of a font for a given report.
Should I be getting the font names by calling FontListGenerator.listFonts()?
2) I noticed in the guts of configurator.setupFontInfo(), there is a font
cache file which is written. Is it possible to get the fonts names from this
file instead?
In short, I am not fussed on how I get the font names so long as the memory
doesn't go through the roof!
From: thebernmeis...@hotmail.com
To: fop-users@xmlgraphics.apache.org
Subject: RE: Getting a list of font names without the memory hit...
Date: Wed, 31 Jul 2013 13:17:32 +1000
I'm using FOP inside my desktop app. I use FOP to combine .xml data files and
.xsl template files into PDFs. I wanted to give the user the choice of font to
use for the PDF text and so I am calling FOP code to get that list of fonts.
Date: Tue, 30 Jul 2013 21:41:10 -0500
From: lmpmberna...@gmail.com
To: fop-users@xmlgraphics.apache.org
Subject: Re: Getting a list of font names without the memory hit...
Are you using FOP in your Desktop app
(meaning you feed and FO file and output one of the supported
formats) or you just want to use some classes to get the list of
fonts in your system?
On 7/30/13 5:42 PM, Bernard Giannetti wrote:
(apologies for the double post...somehow
my email got tagged to the end of an unrelated post)
Hi,
I'm making a call to
org.apache.fop.tools.fontlist.FontListGenerator.listFonts(
... ) to get a list of font names
for my desktop application. To get the font names, I take the
keys from the
returned fontFamilies
SortedMap; the actual data is
junked.
I hadn't
realised just how much memory is used by listfont(
... ) - on some platforms such as Windows 7, in
excess of 250 MB. In this case I'm hitting out of
memory errors.
I was
wondering if there's a simpler way (uses less memory) to
get just the font names (first family names)? As I
said, I don't make use of the metrics and other font
details...just the first family name for each font. Digging
down into listfont(
... ), I was wondering if it's safe to take the firstFamilyName
and place it
into a list say and then drop the following lines for the
containers/sort?
Iterator iter =
fontInfo.getFontTriplets().entrySet().iterator();
while (iter.hasNext()) {
Map.Entry
entry = (Map.Entry)iter.next();
FontTriplet
triplet = (FontTriplet)entry.getKey();
String
key = (String)entry.getValue();
FontSpec
container;
if
(keyBag.contains(key)) {
keyBag.remove(key);
FontMetrics metrics = (FontMetrics)fonts.get(key);
container = new FontSpec(key,
metrics);
container.addFamilyNames(metrics.getFamilyNames());
keys.put(key, container);
String firstFamilyName =
(String)container.getFamilyNames().first();
RE: Getting a list of font names without the memory hit...
The config file or the cache file? My config file has no fonts listed for PDF: renderer mime=application/pdf filterListvalueflate/value /filterList fontsauto-detect/ /fonts/renderer Date: Wed, 31 Jul 2013 04:26:33 -0700 From: djs...@yahoo.com To: fop-users@xmlgraphics.apache.org Subject: RE: Getting a list of font names without the memory hit... Why don't you just read the config file which list all the available fonts?
RE: Getting a list of font names without the memory hit...
I'm reading org.apache.fop.fonts.FontCache now...red-faced and fingers crossed! From: thebernmeis...@hotmail.com To: fop-users@xmlgraphics.apache.org Subject: RE: Getting a list of font names without the memory hit... Date: Wed, 31 Jul 2013 21:29:59 +1000 The config file or the cache file? My config file has no fonts listed for PDF: renderer mime=application/pdf filterListvalueflate/value /filterList fontsauto-detect/ /fonts/renderer Date: Wed, 31 Jul 2013 04:26:33 -0700 From: djs...@yahoo.com To: fop-users@xmlgraphics.apache.org Subject: RE: Getting a list of font names without the memory hit... Why don't you just read the config file which list all the available fonts?
RE: Getting a list of font names without the memory hit...
Now I'm chasing my tail...looking at FontCache has gotten me back to FontInfo.getFonts()! Any other ideas please?! From: thebernmeis...@hotmail.com To: fop-users@xmlgraphics.apache.org Subject: RE: Getting a list of font names without the memory hit... Date: Wed, 31 Jul 2013 21:33:14 +1000 I'm reading org.apache.fop.fonts.FontCache now...red-faced and fingers crossed! From: thebernmeis...@hotmail.com To: fop-users@xmlgraphics.apache.org Subject: RE: Getting a list of font names without the memory hit... Date: Wed, 31 Jul 2013 21:29:59 +1000 The config file or the cache file? My config file has no fonts listed for PDF: renderer mime=application/pdf filterListvalueflate/value /filterList fontsauto-detect/ /fonts/renderer Date: Wed, 31 Jul 2013 04:26:33 -0700 From: djs...@yahoo.com To: fop-users@xmlgraphics.apache.org Subject: RE: Getting a list of font names without the memory hit... Why don't you just read the config file which list all the available fonts?
Re: Getting a list of font names without the memory hit...
Are you using FOP in your Desktop app (meaning you feed and FO file and
output one of the supported formats) or you just want to use some
classes to get the list of fonts in your system?
On 7/30/13 5:42 PM, Bernard Giannetti wrote:
(apologies for the double post...somehow my email got tagged to the
end of an unrelated post)
Hi,
I'm making a call to
org.apache.fop.tools.fontlist.FontListGenerator.listFonts( ... ) to
get a list of font names for my desktop application. To get the font
names, I take the keys from the returned fontFamilies SortedMap; the
actual data is junked.
I hadn't realised just how much memory is used by listfont( ... ) - on
some platforms such as Windows 7, in excess of 250 MB. In this case
I'm hitting out of memory errors.
I was wondering if there's a simpler way (uses less memory) to get
just the font names (first family names)? As I said, I don't make use
of the metrics and other font details...just the first family name for
each font. Digging down into listfont( ... ), I was wondering if it's
safe to take the firstFamilyName and place it into a list say and then
drop the following lines for the containers/sort?
Iterator iter = fontInfo.getFontTriplets().entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry)iter.next();
FontTriplet triplet = (FontTriplet)entry.getKey();
String key = (String)entry.getValue();
FontSpec container;
if (keyBag.contains(key)) {
keyBag.remove(key);
FontMetrics metrics = (FontMetrics)fonts.get(key);
container = new FontSpec(key, metrics);
container.addFamilyNames(metrics.getFamilyNames());
keys.put(key, container);
String firstFamilyName = (String)container.getFamilyNames().first();
List containers = (List)fontFamilies.get(firstFamilyName);
if (containers == null) {
containers = new java.util.ArrayList();
fontFamilies.put(firstFamilyName, containers);
}
containers.add(container);
Collections.sort(containers);
} else {
container = (FontSpec)keys.get(key);
}
container.addTriplet(triplet);
}
I'm guessing a lot of memory is chewed up in the containers/sort
section...but really I can't be sure as I don't fully follow what's
going on!
Ideally I'd just up the amount of memory supplied to the desktop
application, but I don't have that option and besides, it just delays
the problem of running out of memory.
Thanks in advance,
Bernard.
RE: Getting a list of font names without the memory hit...
I'm using FOP inside my desktop app. I use FOP to combine .xml data files and
.xsl template files into PDFs. I wanted to give the user the choice of font to
use for the PDF text and so I am calling FOP code to get that list of fonts.
Date: Tue, 30 Jul 2013 21:41:10 -0500
From: lmpmberna...@gmail.com
To: fop-users@xmlgraphics.apache.org
Subject: Re: Getting a list of font names without the memory hit...
Are you using FOP in your Desktop app
(meaning you feed and FO file and output one of the supported
formats) or you just want to use some classes to get the list of
fonts in your system?
On 7/30/13 5:42 PM, Bernard Giannetti wrote:
(apologies for the double post...somehow
my email got tagged to the end of an unrelated post)
Hi,
I'm making a call to
org.apache.fop.tools.fontlist.FontListGenerator.listFonts(
... ) to get a list of font names
for my desktop application. To get the font names, I take the
keys from the
returned fontFamilies
SortedMap; the actual data is
junked.
I hadn't
realised just how much memory is used by listfont(
... ) - on some platforms such as Windows 7, in
excess of 250 MB. In this case I'm hitting out of
memory errors.
I was
wondering if there's a simpler way (uses less memory) to
get just the font names (first family names)? As I
said, I don't make use of the metrics and other font
details...just the first family name for each font. Digging
down into listfont(
... ), I was wondering if it's safe to take the firstFamilyName
and place it
into a list say and then drop the following lines for the
containers/sort?
Iterator iter =
fontInfo.getFontTriplets().entrySet().iterator();
while (iter.hasNext()) {
Map.Entry
entry = (Map.Entry)iter.next();
FontTriplet
triplet = (FontTriplet)entry.getKey();
String
key = (String)entry.getValue();
FontSpec
container;
if
(keyBag.contains(key)) {
keyBag.remove(key);
FontMetrics metrics = (FontMetrics)fonts.get(key);
container = new FontSpec(key,
metrics);
container.addFamilyNames(metrics.getFamilyNames());
keys.put(key, container);
String firstFamilyName =
(String)container.getFamilyNames().first();
List containers =
(List)fontFamilies.get(firstFamilyName);
if (containers == null) {
containers = new
java.util.ArrayList();
fontFamilies.put(firstFamilyName,
containers);
}
containers.add(container);
Collections.sort(containers);
} else {
container =
(FontSpec)keys.get(key);
}
container.addTriplet(triplet);
}
I'm guessing a lot
of memory is chewed up in the containers/sort
section...but really I can't be sure as I don't fully
follow what's going on!
Ideally I'd just up
the amount of memory supplied to the desktop application,
but I don't have that option and besides, it just delays
the problem of running out of memory.
Thanks in advance,
Bernard.
