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For the JSON output of Get DataNode we need to alter the DataMapUtils class. The function toDataMap translates a datanode object to a JSON output. We only want this to occur on the top node and as such we can create a new method which is called before toDataMap:

public static Map<String, Object> toDataMapTopNode(final DataNode dataNode) {
    final String nodeName = dataNode.getXpath().substring(dataNode.getXpath().lastIndexOf('/') + 1)
        .replaceAll("\\[.*?\\]", "");
    return ImmutableMap.<String, Object>builder().put(nodeName,
        toDataMap(dataNode)
    ).build();
}

We only want the container name on the top level of the JSON output and as such have to distinguish between a top level node and non top level node. We create an outer map to wrap the inner map which creates the appropriate levels in the JSON output. 

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Tests would need to be updated to accept the new JSON output which is returned. Examples would need to be updated in openapi

Backwards Compatibility 

Queries which use toDataMap:

Outstanding issues:

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