Tree, TreeNode

[kiler]

Hi All,

I am new in java and JSF and I have (IMHO) big problem. I want to list disk folder in Tree control, but I do not know how to do this.
I wrote somthing like below, but it's return just subfolders from parent. I do not know how to read sub...sub...folders. I could build new path and add to tree (or treeNode), but I do not know it is good idea, may be there is simple way.
Could someone show example code ?

Code: Select all

        String realPath = "somePath";
        File rootDir = new File(realPath);
        TreeNode rootNode = new DefaultTreeNode("Root", null);

        File[] subDirs = rootDir.listFiles(new FileFilter() {

            @Override
            public boolean accept(File rootDir) {
                return rootDir.isDirectory();
            }
        });

        for (int i = 0; i < subDirs.length; i++) {
            if (!(subDirs[i].getName().toUpperCase().equals("META-INF")
                    || subDirs[i].getName().toUpperCase().equals("WEB-INF"))) {

                rootNode.addChild(new DefaultTreeNode(subDirs[i].getName(), null));
            }
        }

Thx for your answer !

[gcameo]

Well, this is not actually a primefaces question but because am almost doing what you are doing, maybe you can learn from mine.

what you need to do is recursion.

this is how mine is. Not the repeated call to

Code: Select all

populateTree

if the current child has children, the call the method again.

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    private TreeNode populateTree( Set<HierarchyItem> children, TreeNode parentNode )
    {
        if ( !Utils.isNullOrEmpty( children ) )
        {
            for ( HierarchyItem site : children )
            {
                TreeNode node = new DefaultTreeNode( site , parentNode );
                if ( !Utils.isNullOrEmpty( site.getChildren() ) )
                {
                    populateTree( site.getChildren(), node );
                }
            }
        }
        return parentNode;
    }

When you become a guru like optimus, dont forget to help someone else

[kiler]

Thank You Very Much !!!

I know that is not issue related with primefaces, but primefaces community should help eachother

Can I one more question ? Class/library

Code: Select all

HierarchyItem

where can I find ? or this is yours implementation ?


PS.
I always try help if I only can.

[gcameo]

Can I one more question ? Class/library

Code:
HierarchyItem

where can I find ? or this is yours implementation ?

That is the model i store in the tree so when a tree is selected, and it fires the tree event handler, i retreive that from TreeNode via treeNode.getData().

dobra noc