Child topics in topic set documents are being parsed as root topics by
notification producer
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Key: MUSE-153
URL: http://issues.apache.org/jira/browse/MUSE-153
Project: Muse
Issue Type: Bug
Components: WSN Topics
Affects Versions: 2.0.0
Environment: any
Reporter: Mohammad Fakhar
Assigned To: Dan Jemiolo
The addTopic routines in SimpleNotificationProducer, which parse topic set
documents to TopicNameSpace objects, are treating child topics in the topic set
document as root topics.
Lets say I have this topic set doucment (root and children belong to same
namespace):
<root1>
<child1/>
<child2/>
</root1>
Here is the sequence of events which leads to the erroneous behavior:
1) createTopicSetDocument in SimpleNotificationProducer calls addTopics on all
root topics in document.
2) addTopics calls addTopic to add root1, and then recursively calls itself for
all children of root.
3) Now, when addTopic is called with child1, the following code is executed (in
the addTopic method):
Topic topic = new SimpleTopic(localName, topicSpace);
topicSpace.addTopic(topic);
This causes the child1 to be added as a root topic as this code is executed in
SimpleTopicSpace.addTopic: "_rootTopics.put(name, topic);"
where the name is child1. Same applies to child2.
The problem was exposed when I tried to evaluate a concrete topic expression
against this topic set document; it was treating child1 and child2 as root
topics in the namespace, instead of child topics of root1.
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