/**
* Obtain a default dir, if there is one, which would have been passed in via a -p argument. Try
* to expand the dir in the file tree.
*/
public void expandDefaultDir() {
// do an overall try catch. Don't want an exception here bringing down
// the app.
try {
String defaultDir = FileUtilities.getDefaultDir();
if (defaultDir == null) {
return;
}
File file = new File(defaultDir);
if (!file.exists() || !file.isDirectory()) {
return;
}
String path = file.getCanonicalPath();
// break the path into components
String tokens[] = FileUtilities.tokenizePath(path);
if (tokens == null) {
return;
}
DefaultMutableTreeNode root = (DefaultMutableTreeNode) getModel().getRoot();
if ((root == null) || (root.getChildCount() < 1)) {
return;
}
int tokenIndex = 0;
while ((root != null) && (root.getChildCount() > 0) && (tokenIndex < tokens.length)) {
String token = tokens[tokenIndex];
tokenIndex++;
DefaultMutableTreeNode newRoot = getChild(root, token);
if (newRoot != null) {
TreeNode pathnodes[] = ((DefaultTreeModel) getModel()).getPathToRoot(newRoot);
TreePath cpath = new TreePath(pathnodes);
scrollPathToVisible(cpath);
expandPath(cpath);
newRoot = getChild(root, token);
pathnodes = ((DefaultTreeModel) getModel()).getPathToRoot(newRoot);
}
root = newRoot;
}
} catch (Exception e) {
e.printStackTrace();
}
}
private DefaultMutableTreeNode getChild(DefaultMutableTreeNode parent, String name) {
if ((parent == null) || (parent.getChildCount() < 1)) {
return null;
}
try {
for (Enumeration<?> e = parent.children(); e.hasMoreElements(); ) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) (e.nextElement());
FileNode fileNode = getFileNode(node);
if (fileNode != null) {
File file = fileNode.getFile();
if ((file != null) && (file.exists() && (file.isDirectory()))) {
String subTokens[] = FileUtilities.tokenizePath(file.getPath());
if ((subTokens != null) && (subTokens.length > 0)) {
String fname = subTokens[subTokens.length - 1];
if (name.equalsIgnoreCase(fname)) {
return node;
}
} else {
Log.getInstance().warning("tokenizer in fileTree getChiild not working properly.");
}
}
} // fileNode != null
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
