| /* |
| * 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.spi.commit; |
| |
| import java.util.List; |
| |
| import org.apache.jackrabbit.oak.api.CommitFailedException; |
| import org.apache.jackrabbit.oak.api.PropertyState; |
| import org.apache.jackrabbit.oak.spi.state.NodeState; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Validator that excludes a subtree from the validation process and delegates |
| * validation of other changes to another given validator. |
| * |
| * @see SubtreeValidator |
| * @since Oak 0.9 |
| */ |
| public class SubtreeExcludingValidator extends DefaultValidator { |
| |
| private final Validator validator; |
| |
| private final String head; |
| |
| private final List<String> tail; |
| |
| protected SubtreeExcludingValidator(Validator validator, List<String> path) { |
| this.validator = checkNotNull(validator); |
| checkNotNull(path); |
| checkArgument(!path.isEmpty()); |
| this.head = path.get(0); |
| this.tail = path.subList(1, path.size()); |
| } |
| |
| @Override |
| public void propertyAdded(PropertyState after) throws CommitFailedException { |
| validator.propertyAdded(after); |
| } |
| |
| @Override |
| public void propertyChanged(PropertyState before, PropertyState after) |
| throws CommitFailedException { |
| validator.propertyChanged(before, after); |
| } |
| |
| @Override |
| public void propertyDeleted(PropertyState before) throws CommitFailedException { |
| validator.propertyDeleted(before); |
| } |
| |
| @Override |
| public Validator childNodeAdded(String name, NodeState after) throws CommitFailedException { |
| validator.childNodeAdded(name, after); |
| return descend(name); |
| } |
| |
| @Override |
| public Validator childNodeChanged(String name, NodeState before, NodeState after) |
| throws CommitFailedException { |
| validator.childNodeChanged(name, before, after); |
| return descend(name); |
| } |
| |
| @Override |
| public Validator childNodeDeleted(String name, NodeState before) |
| throws CommitFailedException { |
| validator.childNodeDeleted(name, before); |
| return descend(name); |
| } |
| |
| private Validator descend(String name) { |
| if (!head.equals(name)) { |
| return validator; |
| } else if (tail.isEmpty()) { |
| return null; |
| } else { |
| return createValidator(validator, tail); |
| } |
| } |
| |
| protected SubtreeExcludingValidator createValidator(Validator validator, List<String> path) { |
| return new SubtreeExcludingValidator(validator, path); |
| } |
| |
| } |