/*
* (C) Copyright 2006-2008 Nuxeo SA (http://nuxeo.com/) and others.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Contributors:
* bstefanescu
*
* $Id$
*/
package org.nuxeo.ecm.webengine.ui.json;
import java.util.Collection;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.nuxeo.common.utils.StringUtils;
/**
* @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
*/
public abstract class JQueryTreeBuilder<T> {
public static final String CHILDREN = "children";
public JSONArray buildTree(String rootName, String path) {
return buildTree(rootName, path);
}
public JSONArray buildTree(T root, String path) {
if (path == null || path.length() == 0 || "/".equals(path)) {
return buildChildren(root);
}
String[] ar = StringUtils.split(path, '/', false);
if (ar.length > 1) {
String name = getName(root);
if (name.equals(ar[0])) {
return buildChildren(root, ar, 1);
}
}
return buildChildren(root);
}
public JSONArray buildChildren(T parent) {
JSONArray json = new JSONArray();
Collection<T> children = getChildren(parent);
if (children != null) {
for (T obj : children) {
JSONObject map = toJson(obj);
json.add(map);
}
}
return json;
}
public JSONArray buildChildren(T parent, String[] path, int off) {
JSONArray json = new JSONArray();
String expandName = path[off];
Collection<T> children = getChildren(parent);
if (children != null) {
for (T obj : children) {
JSONObject map = toJson(obj);
String childName = getName(obj);
if (expandName.equals(childName)) {
JSONArray jsonChildren = null;
if (off < path.length - 1) {
jsonChildren = buildChildren(obj, path, off + 1);
} else {
jsonChildren = buildChildren(obj);
}
map.element(CHILDREN, jsonChildren);
}
json.add(map);
}
}
return json;
}
protected abstract T getObject(String name);
protected abstract String getName(T obj);
protected abstract Collection<T> getChildren(T obj);
protected abstract JSONObject toJson(T obj);
}