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Posted to dev@felix.apache.org by "Guillaume Nodet (JIRA)" <ji...@apache.org> on 2010/02/18 21:59:28 UTC
[jira] Created: (FELIX-2104) Investigate the possibility to use a
different xml parser
Investigate the possibility to use a different xml parser
---------------------------------------------------------
Key: FELIX-2104
URL: https://issues.apache.org/jira/browse/FELIX-2104
Project: Felix
Issue Type: Task
Components: Bundle Repository (OBR)
Reporter: Guillaume Nodet
kxml is nice because it's small
We may want to check using faster parser if they are available while still keeping kxml as a fallback.
Woodstox is one of the fastest parser so we may want to see what's possible with it.
The main driver behind that is speed, so we want to measure the parsing time with kxml vs woodstox.
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[jira] Commented: (FELIX-2104) Investigate the possibility to use a
different xml parser
Posted by "Guillaume Nodet (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/FELIX-2104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12835693#action_12835693 ]
Guillaume Nodet commented on FELIX-2104:
----------------------------------------
Yeah, I'm not thinking of embedding it.
I've done some initial testing using a stax parser and woodstox underneath.
The early tests shows a speed improvement > 7x, so it's really worth investigating.
I need to try with the default sun stax parser. If perfs are not too bad, the easiest way would be to simply use the stax parse if available. It would use whichever implementation is available (hopefully woodstox has been configured) or the JVM one.
> Investigate the possibility to use a different xml parser
> ---------------------------------------------------------
>
> Key: FELIX-2104
> URL: https://issues.apache.org/jira/browse/FELIX-2104
> Project: Felix
> Issue Type: Task
> Components: Bundle Repository (OBR)
> Reporter: Guillaume Nodet
>
> kxml is nice because it's small
> We may want to check using faster parser if they are available while still keeping kxml as a fallback.
> Woodstox is one of the fastest parser so we may want to see what's possible with it.
> The main driver behind that is speed, so we want to measure the parsing time with kxml vs woodstox.
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[jira] Resolved: (FELIX-2104) Add an optional faster stax based
parser
Posted by "Guillaume Nodet (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/FELIX-2104?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Guillaume Nodet resolved FELIX-2104.
------------------------------------
Resolution: Fixed
Fix Version/s: bundlerepository-1.6.0
Committing to https://svn.apache.org/repos/asf/felix/trunk ...
M bundlerepository/pom.xml
M bundlerepository/src/main/java/org/apache/felix/bundlerepository/RepositoryImpl.java
A bundlerepository/src/main/java/org/apache/felix/bundlerepository/StaxParser.java
M bundlerepository/src/test/java/org/apache/felix/bundlerepository/MockBundleContext.java
M bundlerepository/src/test/java/org/apache/felix/bundlerepository/RepositoryImplTest.java
M bundlerepository/src/test/java/org/apache/felix/bundlerepository/ResolverImplTest.java
A bundlerepository/src/test/java/org/apache/felix/bundlerepository/StaxParserTest.java
Committed r911818
The StaxParser is completely optional but if the stax package is available, it will be used and can provides a parsing gain > 10x
> Add an optional faster stax based parser
> ----------------------------------------
>
> Key: FELIX-2104
> URL: https://issues.apache.org/jira/browse/FELIX-2104
> Project: Felix
> Issue Type: Task
> Components: Bundle Repository (OBR)
> Reporter: Guillaume Nodet
> Assignee: Guillaume Nodet
> Fix For: bundlerepository-1.6.0
>
>
> kxml is nice because it's small
> We may want to check using faster parser if they are available while still keeping kxml as a fallback.
> Woodstox is one of the fastest parser so we may want to see what's possible with it.
> The main driver behind that is speed, so we want to measure the parsing time with kxml vs woodstox.
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[jira] Work started: (FELIX-2104) Add an optional faster stax based
parser
Posted by "Guillaume Nodet (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/FELIX-2104?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on FELIX-2104 started by Guillaume Nodet.
> Add an optional faster stax based parser
> ----------------------------------------
>
> Key: FELIX-2104
> URL: https://issues.apache.org/jira/browse/FELIX-2104
> Project: Felix
> Issue Type: Task
> Components: Bundle Repository (OBR)
> Reporter: Guillaume Nodet
> Assignee: Guillaume Nodet
> Fix For: bundlerepository-1.6.0
>
>
> kxml is nice because it's small
> We may want to check using faster parser if they are available while still keeping kxml as a fallback.
> Woodstox is one of the fastest parser so we may want to see what's possible with it.
> The main driver behind that is speed, so we want to measure the parsing time with kxml vs woodstox.
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[jira] Updated: (FELIX-2104) Add an optional faster stax based
parser
Posted by "Guillaume Nodet (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/FELIX-2104?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Guillaume Nodet updated FELIX-2104:
-----------------------------------
Assignee: Guillaume Nodet
Summary: Add an optional faster stax based parser (was: Investigate the possibility to use a different xml parser)
> Add an optional faster stax based parser
> ----------------------------------------
>
> Key: FELIX-2104
> URL: https://issues.apache.org/jira/browse/FELIX-2104
> Project: Felix
> Issue Type: Task
> Components: Bundle Repository (OBR)
> Reporter: Guillaume Nodet
> Assignee: Guillaume Nodet
> Fix For: bundlerepository-1.6.0
>
>
> kxml is nice because it's small
> We may want to check using faster parser if they are available while still keeping kxml as a fallback.
> Woodstox is one of the fastest parser so we may want to see what's possible with it.
> The main driver behind that is speed, so we want to measure the parsing time with kxml vs woodstox.
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[jira] Updated: (FELIX-2104) Add an optional faster stax based
parser
Posted by "Richard S. Hall (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/FELIX-2104?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Richard S. Hall updated FELIX-2104:
-----------------------------------
Affects Version/s: bundlerepository-1.4.3
> Add an optional faster stax based parser
> ----------------------------------------
>
> Key: FELIX-2104
> URL: https://issues.apache.org/jira/browse/FELIX-2104
> Project: Felix
> Issue Type: Task
> Components: Bundle Repository (OBR)
> Affects Versions: bundlerepository-1.4.3
> Reporter: Guillaume Nodet
> Assignee: Guillaume Nodet
> Fix For: bundlerepository-1.6.0
>
>
> kxml is nice because it's small
> We may want to check using faster parser if they are available while still keeping kxml as a fallback.
> Woodstox is one of the fastest parser so we may want to see what's possible with it.
> The main driver behind that is speed, so we want to measure the parsing time with kxml vs woodstox.
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[jira] Commented: (FELIX-2104) Investigate the possibility to use a
different xml parser
Posted by "Richard S. Hall (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/FELIX-2104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12835441#action_12835441 ]
Richard S. Hall commented on FELIX-2104:
----------------------------------------
>From my point of view, the main issues here are keeping OBR small, self-contained, and usable across Java versions. I'm not knowledgeable about woodstox but a quick look appears like it isn't too small (3x the size of the current OBR bundle), so just replacing kxml2 doesn't look good. But, yeah, we could implement some sort of optional import-package approach, perhaps.
> Investigate the possibility to use a different xml parser
> ---------------------------------------------------------
>
> Key: FELIX-2104
> URL: https://issues.apache.org/jira/browse/FELIX-2104
> Project: Felix
> Issue Type: Task
> Components: Bundle Repository (OBR)
> Reporter: Guillaume Nodet
>
> kxml is nice because it's small
> We may want to check using faster parser if they are available while still keeping kxml as a fallback.
> Woodstox is one of the fastest parser so we may want to see what's possible with it.
> The main driver behind that is speed, so we want to measure the parsing time with kxml vs woodstox.
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[jira] Closed: (FELIX-2104) Add an optional faster stax based
parser
Posted by "Carsten Ziegeler (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/FELIX-2104?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Carsten Ziegeler closed FELIX-2104.
-----------------------------------
> Add an optional faster stax based parser
> ----------------------------------------
>
> Key: FELIX-2104
> URL: https://issues.apache.org/jira/browse/FELIX-2104
> Project: Felix
> Issue Type: Task
> Components: Bundle Repository (OBR)
> Affects Versions: bundlerepository-1.4.3
> Reporter: Guillaume Nodet
> Assignee: Guillaume Nodet
> Fix For: bundlerepository-1.6.0
>
>
> kxml is nice because it's small
> We may want to check using faster parser if they are available while still keeping kxml as a fallback.
> Woodstox is one of the fastest parser so we may want to see what's possible with it.
> The main driver behind that is speed, so we want to measure the parsing time with kxml vs woodstox.
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