| /* |
| * 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.document; |
| |
| import org.apache.jackrabbit.oak.api.CommitFailedException; |
| import org.apache.jackrabbit.oak.cache.CacheStats; |
| import org.apache.jackrabbit.oak.spi.commit.CommitInfo; |
| import org.apache.jackrabbit.oak.spi.commit.EmptyHook; |
| import org.apache.jackrabbit.oak.spi.state.DefaultNodeStateDiff; |
| import org.apache.jackrabbit.oak.spi.state.NodeBuilder; |
| import org.apache.jackrabbit.oak.spi.state.NodeState; |
| import org.apache.jackrabbit.oak.spi.state.NodeStore; |
| import org.apache.jackrabbit.oak.stats.Clock; |
| import org.junit.Test; |
| |
| import static org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.EMPTY_NODE; |
| import static org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.MISSING_NODE; |
| import static org.junit.Assert.assertEquals; |
| |
| public class DocumentNodeStoreDiffTest extends AbstractMongoConnectionTest { |
| |
| // OAK-2562 |
| @Test |
| public void diff() throws Exception { |
| DocumentNodeStore store = mk.getNodeStore(); |
| |
| NodeBuilder builder = store.getRoot().builder(); |
| builder.child("other"); |
| for (int i = 0; i < 10; i++) { |
| builder.child("test").child("folder").child("node-" + i); |
| } |
| merge(store, builder); |
| |
| for (int i = 0; i < 50; i++) { |
| builder = store.getRoot().builder(); |
| builder.child("other").child("node-" + i); |
| merge(store, builder); |
| } |
| |
| NodeState before = store.getRoot(); |
| |
| builder = store.getRoot().builder(); |
| builder.child("test").child("folder").child("node-x").child("child"); |
| NodeState after = merge(store, builder); |
| |
| for (int i = 0; i < 10; i++) { |
| builder = store.getRoot().builder(); |
| builder.child("test").child("folder").child("node-" + i).child("child"); |
| merge(store, builder); |
| } |
| |
| Iterable<CacheStats> stats = store.getDiffCacheStats(); |
| for (CacheStats cs : stats) { |
| cs.resetStats(); |
| } |
| |
| // must not cause cache misses |
| Diff.perform(before, after); |
| for (CacheStats cs : stats) { |
| assertEquals(0, cs.getMissCount()); |
| } |
| } |
| |
| @Override |
| protected Clock getTestClock() throws InterruptedException { |
| return new Clock.Virtual(); |
| } |
| |
| private static NodeState merge(NodeStore store, NodeBuilder builder) |
| throws CommitFailedException { |
| return store.merge(builder, EmptyHook.INSTANCE, CommitInfo.EMPTY); |
| } |
| |
| private static class Diff extends DefaultNodeStateDiff { |
| |
| static void perform(NodeState before, NodeState after) { |
| after.compareAgainstBaseState(before, new Diff()); |
| } |
| |
| @Override |
| public boolean childNodeAdded(String name, NodeState after) { |
| return after.compareAgainstBaseState(EMPTY_NODE, this); |
| } |
| |
| @Override |
| public boolean childNodeChanged(String name, |
| NodeState before, |
| NodeState after) { |
| return after.compareAgainstBaseState(before, this); |
| } |
| |
| @Override |
| public boolean childNodeDeleted(String name, NodeState before) { |
| return MISSING_NODE.compareAgainstBaseState(before, this); |
| } |
| } |
| } |