| /* |
| * 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.plugins.itemsave; |
| |
| import static com.google.common.collect.Lists.newArrayList; |
| import static org.apache.jackrabbit.oak.commons.PathUtils.elements; |
| |
| import java.util.List; |
| |
| import org.apache.jackrabbit.oak.api.CommitFailedException; |
| import org.apache.jackrabbit.oak.api.PropertyState; |
| import org.apache.jackrabbit.oak.spi.commit.FailingValidator; |
| import org.apache.jackrabbit.oak.spi.commit.SubtreeExcludingValidator; |
| import org.apache.jackrabbit.oak.spi.commit.Validator; |
| |
| /** |
| * This validator checks that all changes are contained within the subtree |
| * rooted at a given path. |
| */ |
| class ItemSaveValidator extends SubtreeExcludingValidator { |
| |
| /** |
| * Name of the property whose {@link #propertyChanged(org.apache.jackrabbit.oak.api.PropertyState, org.apache.jackrabbit.oak.api.PropertyState)} to |
| * ignore or {@code null} if no property should be ignored. |
| */ |
| private final String ignorePropertyChange; |
| |
| /** |
| * Create a new validator that only throws a {@link CommitFailedException} whenever |
| * there are changes not contained in the subtree rooted at {@code path}. |
| * @param path |
| */ |
| public ItemSaveValidator(String path) { |
| this(new FailingValidator(CommitFailedException.UNSUPPORTED, 0, |
| "Failed to save subtree at " + path + ". There are " + |
| "transient modifications outside that subtree."), |
| newArrayList(elements(path))); |
| } |
| |
| private ItemSaveValidator(Validator validator, List<String> path) { |
| super(validator, path); |
| // Ignore property changes if this is the head of the path. |
| // This allows for calling save on a changed property. |
| ignorePropertyChange = path.size() == 1 ? path.get(0) : null; |
| } |
| |
| @Override |
| public void propertyChanged(PropertyState before, PropertyState after) |
| throws CommitFailedException { |
| if (!before.getName().equals(ignorePropertyChange)) { |
| super.propertyChanged(before, after); |
| } |
| } |
| |
| @Override |
| protected SubtreeExcludingValidator createValidator( |
| Validator validator, final List<String> path) { |
| return new ItemSaveValidator(validator, path); |
| } |
| |
| } |