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/*
* 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;
}
}