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Posted to issues@commons.apache.org by "Niall Pemberton (JIRA)" <ji...@apache.org> on 2007/10/21 21:03:50 UTC
[jira] Created: (JCI-55) Improve FilesystemAlterationObserver
implementation
Improve FilesystemAlterationObserver implementation
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Key: JCI-55
URL: https://issues.apache.org/jira/browse/JCI-55
Project: Commons JCI
Issue Type: Improvement
Components: fam
Affects Versions: 1.0
Reporter: Niall Pemberton
Proposal to factor back into fam's FilesystemAlterationObserverImpl the improvements proposed in IO-132:
1) Use a matching array technique to compare previous and current directory contents which minimizes object creation
2) Allow FileFilters to be specified to monitor only portions of the file system, ignoring files/directories of no interest. This is more efficient and reduces the amount of noise from un-wanted file/directory events
3) Add an option to make the observer case-insenstive for file names
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[jira] Updated: (JCI-55) Improve FilesystemAlterationObserver
implementation
Posted by "Niall Pemberton (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/JCI-55?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Niall Pemberton updated JCI-55:
-------------------------------
Attachment: FilesystemAlterationObserverImplTestCase.java
commons-jci-fam-ObserverImpl-improvements.patch
If this patch is accepted then it has implications for the current FilesystemAlterationMonitor - since a single FilesystemAlterationObserver per root directory being observed no longer makes sense with the ability to filter.
Additionally in the IO-132 proposal I split out the basic FilesystemAlterationObserver plumbing (i.e. adding, removing and notifying listeners) into a separate abstract class leaving just the implementation of the checkAndNotify() method in FilesystemAlterationObserverImpl. This facilitates other FilesystemAlterationObserver implementations and makes the FilesystemAlterationObserverImpl easier to read - although the current FilesystemAlterationMonitor is hardcoded only to the FilesystemAlterationObserverImpl.
> Improve FilesystemAlterationObserver implementation
> ---------------------------------------------------
>
> Key: JCI-55
> URL: https://issues.apache.org/jira/browse/JCI-55
> Project: Commons JCI
> Issue Type: Improvement
> Components: fam
> Affects Versions: 1.0
> Reporter: Niall Pemberton
> Attachments: commons-jci-fam-ObserverImpl-improvements.patch, FilesystemAlterationObserverImplTestCase.java
>
>
> Proposal to factor back into fam's FilesystemAlterationObserverImpl the improvements proposed in IO-132:
> 1) Use a matching array technique to compare previous and current directory contents which minimizes object creation
> 2) Allow FileFilters to be specified to monitor only portions of the file system, ignoring files/directories of no interest. This is more efficient and reduces the amount of noise from un-wanted file/directory events
> 3) Add an option to make the observer case-insenstive for file names
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