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From "Paul King (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GROOVY-8206) Groovy clone node with parent
Date Fri, 26 May 2017 05:54:04 GMT

    [ https://issues.apache.org/jira/browse/GROOVY-8206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16025848#comment-16025848
] 

Paul King commented on GROOVY-8206:
-----------------------------------

I can see what you are saying but still not sure of your full use case. What are you going
to do with {{clonedNode}} after its creation? Why not just print using {{node}} as per the
earlier line? Most people clone a node or node list when they plan to move/copy it into another
structure. Once moved/copied the new parent value will be in place.

> Groovy clone node with parent
> -----------------------------
>
>                 Key: GROOVY-8206
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8206
>             Project: Groovy
>          Issue Type: Improvement
>          Components: groovy-jdk
>            Reporter: Manish Yadav
>
> As of now groovy supports clone node feature without cloning parents.
> We can add following custom methods in some util class to make cloning more advanced
:
> 1:
> {code}
> private Node cloneNode(Node node, Node parentNode) {
>     Object newValue = node.value()
>     Node clonedNode = new Node(null, node.name(), new HashMap(node.attributes()), newValue)
>     if (newValue instanceof NodeList) {
>         NodeList nodes = (NodeList) newValue
>         newValue = cloneNodeList(nodes, clonedNode)
>     }
>     clonedNode.setValue(newValue)
>     clonedNode.setParent(parentNode)
>     return clonedNode
> }
> {code}
> 2:
> {code}
> private NodeList cloneNodeList(NodeList nodeList, Node parentNode) {
>     NodeList result = new NodeList(nodeList.size())
>     for (int i = 0; i < nodeList.size(); i++) {
>         Object next = nodeList.get(i)
>         if (next instanceof Node) {
>             result.add(cloneNode((Node) next, parentNode))
>         } else {
>             result.add(next)
>         }
>     }
>     return result
> }
> {code}



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