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From "Rich Scheuerle (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (AXIS2-3422) Eliminate redundant lookup in MessageContext.getProperty(String)
Date Thu, 03 Jan 2008 15:27:34 GMT

     [ https://issues.apache.org/jira/browse/AXIS2-3422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rich Scheuerle resolved AXIS2-3422.
-----------------------------------

    Resolution: Fixed

Fixed 608527

> Eliminate redundant lookup in MessageContext.getProperty(String)
> ----------------------------------------------------------------
>
>                 Key: AXIS2-3422
>                 URL: https://issues.apache.org/jira/browse/AXIS2-3422
>             Project: Axis 2.0 (Axis2)
>          Issue Type: Improvement
>          Components: kernel
>            Reporter: Rich Scheuerle
>            Assignee: Rich Scheuerle
>
> Background:
> MessageContext.getProperty(String) is invoked frequently during the processing of a web
service message.
> MessageContext.getProperty(String) delegates to its super class (AbstractContext) to
get the property value.  The AbstractContext is aware of parent/ancestor contexts and automatically
> searches these objects.
> If a value is not found, the MessageContext then looks in the OperationContext, ServiceContext,
etc. 
> Problem:
> The secondary search of the OperationContext, ServiceContext, etc. is not necessary if
these contexts are ancestors of the MessageContext.  
> The secondary search is expensive and should be eliminated.
> Solution:
> Add a new method to AbstractContext, isAncestor(AbstractContext).
> Use the new method in MessageContext to avoid the secondary search.
> Kudos:
> David Strite (IBM) found this secondary search problem while doing performance testing
for small message payloads.  The new code should increase throughput by about 2% in these
cases.

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