[NETCONF-988] Convert xml pretty print

Tue, 4 Apr 2023 14:22:57 +0000

When we print NetconfMessage, we found that, the print like this:

<notification xmlns="urn:ietf:params:netconf:capability:notification:1.0">    <event-notification xmlns="http://openconfig.net/yang/event">
    
        <events>
        
            <id>MODULE_EVENT_1</id>
            
            <resource/>
            
            <text>transceiver plug off</text>
            
            <time-created>1679874955</time-created>
            
            <severity xmlns:oc-alarm-types="http://openconfig.net/yang/alarms/types">oc-alarm-types:MAJOR</severity>
            
            <type-id>EVENT</type-id>
            
            <vendor-type/>
            
            <event-abbreviate>MODULE-PLUGOFF</event-abbreviate>
            
            <hostname>test</hostname>
            
        </events>
        
    </event-notification>
    
    <eventTime>2023-03-31T02:16:18.672Z</eventTime>
    
</notification>

his has been discussed in this JDK bug ticket.

We shoud use a stylesheet to remove empty Text nodes.

OpenDaylight JIRA

[NETCONF-988] Convert xml pretty print