Hi Jayanga,

For the sake of performance, only generated node list for a service is the
very first time it gets a request. Then we save this nodelist against it
service QName. So you can safely move this nodelist to serviceConfiguration
level then the issue you mention will vanish. Or you can introduce a way to
update nodeMap by checking last update time of the service.


Thanks,
Shameera.


On Fri, Nov 21, 2014 at 12:56 AM, Jayanga Dissanayake <jsdjaya...@gmail.com>
wrote:

> Hi,
>
> Yes. This is exactly my observation. Thanks for elaborating the above
> implementation.
>
> Here the 'nodeMap' is stored in the ConfigurationContext. Why it is
> stored in ConfigurationContext instead of ServiceContext. I think, if we
> need to update the 'nodeMap' when the services are redeployed, it should be
> stored in ServiceContext.
>
> Thanks,
> Jayanga.
>
> On Thu, Nov 20, 2014 at 9:34 PM, Martin Gainty <mgai...@hotmail.com>
> wrote:
>
>> xmlnodes is *assumed* to be in your base configuration for nodeMap to be
>> created properly
>>
>> IF xmlnodes is nowhere to be found a NEW nodeMap IS created via
>>            Map<QName, XmlNode> newNodeMap = new HashMap<QName, XmlNode>();
>> //assumptions xmlSchemaList is a set properly by constructor
>> //elementQName is set properly by constructor
>>              xmlNodeGenerator = new XmlNodeGenerator(xmlSchemaList,
>> elementQname);
>>              mainXmlNode = xmlNodeGenerator.getMainXmlNode();
>> //get the Queue from mainXmlNode
>>              queue = xmlNodeGenerator.getQueue(mainXmlNode);
>> //put new mainxmlNode into newNodeMap and associate to elementQName
>>              newNodeMap.put(elementQname, mainXmlNode);
>> //re-insert the new Map into configContext under 'xmlnodes'
>>              configContext.setProperty(JsonConstant.XMLNODES, newNodeMap);
>>
>> ELSE elementQname (passed in from XMLStreamReader) is searched within the
>> xmlnodes
>> IF elementQName is found in xmlnodes
>>
>> //a queue is acquired from existing nodeMap created from xmlnodes
>> referenced by elementQName
>>    xmlNodeGenerator = new
>> XmlNodeGenerator().getQueue(nodeMap.get(elementQname))
>>
>> //if xmlnodes nodeMap exists but has NO elementQName entry then
>> mainXmlNode will be used:
>> //assumptions xmlSchemaList is a set properly by constructor
>> //elementQName is set properly by constructor
>>        xmlNodeGenerator = new XmlNodeGenerator(xmlSchemaList,
>> elementQname);
>>       mainXmlNode = xmlNodeGenerator.getMainXmlNode();
>> //get Queue from mainXMLNode
>>       queue = xmlNodeGenerator.getQueue(mainXmlNode);
>> //put new mainXmlNode into existing nodeMap and associate with
>> 'elementQName'
>>       nodeMap.put(elementQname, mainXmlNode);
>> //re-insert the new Map into configContext under 'xmlnodes'
>>       configContext.setProperty(JsonConstant.XMLNODES, nodeMap);
>>
>> reference the 4.2.0 branch of WS02 codebase:
>>
>> https://svn.wso2.org/repos/wso2/carbon/kernel/branches/4.2.0/dependencies/axis2/1.6.1-wso2v10/modules/json/src/org/apache/axis2/json/gson/GsonXMLStreamReader.java
>>
>> does this conform to your observations?
>> Martin
>>
>> ------------------------------
>> Date: Thu, 20 Nov 2014 18:07:08 +0530
>> Subject: json.gson : 'NodeMap' in ConfigurationContext doesn't get
>> cleared with service redeployment
>> From: jsdjaya...@gmail.com
>> To: java-user@axis.apache.org
>>
>>
>> Hi All,
>>
>> I am trying out some samples with axis2 json.gson [1] implementation. In
>> my sample I have an Axis2 service which accept and sends json contents.
>> According to the json.gson implementation, it creates the 'NodeMap' in the
>> first invocation and sets it in the ConfigurationContext.
>>
>> I made some changes to the json mappings in my service and simply
>> redeploy the service without restarting the server. While doing this I
>> found out that org.apache.axis2.json.gson.GsonXMLStreamReader failed to
>> read the request. While debugging the code found out that, this is happened
>> by the un-updated 'NodeMap' in the ConfigurationContext.
>>
>> Though my service get redeployed, the 'NodeMap' doesn't get updated. Once
>> I try to access the service it tries to parse the request with old
>> 'NodeMap' and fails. ConfigurationContext doesn't get updated/invalidated
>> with service redeployment.
>>
>> So, shouldn't the 'NodeMap' be stored in a context like ServiceContext,
>>  which get refreshed with service redeployment.
>>
>> Can someone please help me to understand and solve the above issue.
>>
>> [1]
>> http://svn.apache.org/viewvc/axis/axis2/java/core/trunk/modules/json/src/org/apache/axis2/json/gson/
>>
>> Thanks,
>> Jayanga.
>>
>
>


-- 
Best Regards,
Shameera Rathnayaka.

email: shameera AT apache.org , shameerainfo AT gmail.com
Blog : http://shameerarathnayaka.blogspot.com/

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