/*
This file is part of RouteConverter.
RouteConverter is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
RouteConverter is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with RouteConverter; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Copyright (C) 2007 Christian Pesch. All Rights Reserved.
*/
package slash.navigation.converter.gui.helpers;
import slash.navigation.catalog.model.CategoryTreeNode;
import javax.swing.tree.TreePath;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
/**
* Helps to convert between {@link TreePath}s and {@link String}s.
*
* @author Christian Pesch
*/
public class TreePathStringConversion {
private static final String LOCAL = "LOCAL:";
private static final String REMOTE = "REMOTE:";
public static String toString(TreePath treePath) {
StringBuilder buffer = new StringBuilder();
for (Object pathElement : treePath.getPath()) {
CategoryTreeNode treeNode = (CategoryTreeNode) pathElement;
String nodeName = treeNode.getName();
if (treeNode.isLocalRoot())
buffer.append(LOCAL);
else if (treeNode.isRemoteRoot())
buffer.append(REMOTE);
else if (nodeName != null)
buffer.append("/").append(nodeName);
}
return buffer.toString();
}
private static CategoryTreeNode getSubCategory(CategoryTreeNode node, String name) {
for (int i = 0; i < node.getChildCount(); i++) {
CategoryTreeNode child = (CategoryTreeNode) node.getChildAt(i);
if (child.getName().equals(name) ||
child.isLocalRoot() && LOCAL.equals(name) ||
child.isRemoteRoot() && REMOTE.equals(name))
return child;
}
return null;
}
public static TreePath fromString(CategoryTreeNode root, String path) {
List<CategoryTreeNode> result = new ArrayList<CategoryTreeNode>();
StringTokenizer tokenizer = new StringTokenizer(path, "/");
CategoryTreeNode current = root;
result.add(root);
while (tokenizer.hasMoreTokens()) {
String pathElement = tokenizer.nextToken();
CategoryTreeNode next = getSubCategory(current, pathElement);
if (next != null) {
result.add(next);
current = next;
}
}
return new TreePath(result.toArray());
}
}