Serialization of array cia SimpleNotificationProducer sends only the last
element in the array
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Key: MUSE-265
URL: https://issues.apache.org/jira/browse/MUSE-265
Project: Muse
Issue Type: Bug
Components: WSN NotificationProducer
Affects Versions: 2.2.0
Reporter: Bogdan Solomon
Assignee: Dan Jemiolo
Priority: Minor
The problem is the way the NotificationMessage stores the elements.
The SimpleNotificationProducer publish array method does the following for
arrays, where content is the array (of either XmlSerializable or Elements):
NotificationMessage message = createNotificationMessage();
for (int n = 0; n < content.length; ++n)
message.addMessageContent(content[n]);
and in SimpleNotificationMessage
the addMessageContent does the following:
if (content == null)
throw new NullPointerException(_MESSAGES.get("NullMessageContent"));
QName name = XmlUtils.getElementQName(content);
_messageContent.put(name, content);
but _messageContent is a LinkedHashMap, and from what the Java specification
says adding multiple instances with the same key overwrites the values. So only
the last one will be preserved. If all the Array elements have the same QName
(which they should as they pass through the same serializer) then only the last
is stored.
I have solved the issue for the moment by wrapping the Elements that represent
the array in another top level element that gets published.
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