| /* |
| * 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.jackrabbit.oak.composite; |
| |
| import org.apache.jackrabbit.oak.api.PropertyState; |
| import org.apache.jackrabbit.oak.spi.state.NodeState; |
| import org.apache.jackrabbit.oak.spi.state.NodeStateDiff; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import static org.apache.jackrabbit.oak.commons.PathUtils.concat; |
| |
| public class ModifiedPathDiff implements NodeStateDiff { |
| |
| private final Set<String> paths; |
| |
| private final String currentPath; |
| |
| public static Set<String> getModifiedPaths(NodeState before, NodeState after) { |
| ModifiedPathDiff diff = new ModifiedPathDiff(); |
| after.compareAgainstBaseState(before, diff); |
| return diff.getPaths(); |
| } |
| |
| private ModifiedPathDiff() { |
| this.paths = new HashSet<>(); |
| this.currentPath = "/"; |
| } |
| |
| private ModifiedPathDiff(ModifiedPathDiff parent, String name) { |
| this.paths = parent.paths; |
| this.currentPath = concat(parent.currentPath, name); |
| } |
| |
| @Override |
| public boolean propertyAdded(PropertyState after) { |
| paths.add(currentPath); |
| return true; |
| } |
| |
| @Override |
| public boolean propertyChanged(PropertyState before, PropertyState after) { |
| paths.add(currentPath); |
| return true; |
| } |
| |
| @Override |
| public boolean propertyDeleted(PropertyState before) { |
| paths.add(currentPath); |
| return true; |
| } |
| |
| @Override |
| public boolean childNodeAdded(String name, NodeState after) { |
| paths.add(concat(currentPath, name)); |
| return true; |
| } |
| |
| @Override |
| public boolean childNodeChanged(String name, NodeState before, NodeState after) { |
| return after.compareAgainstBaseState(before, new ModifiedPathDiff(this, name)); |
| } |
| |
| @Override |
| public boolean childNodeDeleted(String name, NodeState before) { |
| paths.add(concat(currentPath, name)); |
| return true; |
| } |
| |
| private Set<String> getPaths() { |
| return paths; |
| } |
| } |