/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.sling.resource.inventory.impl;
import java.util.Iterator;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.commons.json.JSONException;
import org.apache.sling.commons.json.JSONObject;
public class ResourceTraversor {
private final JSONObject startObject;
private final Resource startResource;
public ResourceTraversor(final Resource resource)
throws JSONException {
this.startResource = resource;
this.startObject = this.adapt(resource);
}
/**
* Recursive descent from startResource, collecting JSONObjects into
* startObject.
* @throws JSONException
*/
public void collectResources() throws JSONException {
collectChildren(startResource, this.startObject);
}
/**
* @param resource
* @param currentLevel
* @throws JSONException
*/
private void collectChildren(final Resource resource,
final JSONObject jsonObj)
throws JSONException {
final Iterator<Resource> children = resource.listChildren();
while (children.hasNext()) {
final Resource res = children.next();
final JSONObject json = collectResource(res, jsonObj);
collectChildren(res, json);
}
}
/**
* Adds a resource in the JSON tree.
*
* @param resource The resource to add
* @param level The level where this resource is located.
* @throws JSONException
*/
private JSONObject collectResource(final Resource resource, final JSONObject parent)
throws JSONException {
final JSONObject o = adapt(resource);
parent.put(resource.getName(), o);
return o;
}
/**
* Adapt a Resource to a JSON Object.
*
* @param resource The resource to adapt.
* @return The JSON representation of the Resource
* @throws JSONException
*/
private JSONObject adapt(final Resource resource) throws JSONException {
return JsonObjectCreator.create(resource);
}
public JSONObject getJSONObject() {
return startObject;
}
}