[GitHub] [jackrabbit-oak] stefan-egli commented on a change in pull request #238: OAK-9131 : introducing scanners for references to nt:frozenNode

[GitBox <gi...@apache.org>]

stefan-egli commented on a change in pull request #238:
URL: https://github.com/apache/jackrabbit-oak/pull/238#discussion_r453710442



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File path: oak-run/src/main/java/org/apache/jackrabbit/oak/run/FrozenNodeRefsByScanningCommand.java
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@@ -0,0 +1,293 @@
+/*
+ * 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.run;
+
+import java.io.IOException;
+import java.lang.management.ManagementFactory;
+import java.util.Collections;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
+
+import javax.jcr.ItemNotFoundException;
+import javax.jcr.Node;
+import javax.jcr.NodeIterator;
+import javax.jcr.Property;
+import javax.jcr.PropertyIterator;
+import javax.jcr.PropertyType;
+import javax.jcr.Repository;
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+import javax.jcr.SimpleCredentials;
+import javax.jcr.Value;
+import javax.jcr.query.Query;
+import javax.jcr.query.QueryManager;
+import javax.jcr.query.QueryResult;
+
+import org.apache.jackrabbit.oak.Oak;
+import org.apache.jackrabbit.oak.jcr.Jcr;
+import org.apache.jackrabbit.oak.plugins.index.lucene.IndexTracker;
+import org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexEditorProvider;
+import org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexProvider;
+import org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.DocumentQueue;
+import org.apache.jackrabbit.oak.run.cli.CommonOptions;
+import org.apache.jackrabbit.oak.run.cli.NodeStoreFixture;
+import org.apache.jackrabbit.oak.run.cli.NodeStoreFixtureProvider;
+import org.apache.jackrabbit.oak.run.cli.Options;
+import org.apache.jackrabbit.oak.run.commons.Command;
+import org.apache.jackrabbit.oak.spi.commit.Observer;
+import org.apache.jackrabbit.oak.spi.query.QueryIndexProvider;
+import org.apache.jackrabbit.oak.spi.state.NodeStore;
+import org.apache.jackrabbit.oak.stats.StatisticsProvider;
+
+import com.google.common.io.Closer;
+import com.google.common.util.concurrent.MoreExecutors;
+
+import joptsimple.OptionParser;
+import joptsimple.OptionSet;
+import joptsimple.OptionSpec;
+
+/**
+ * Scans and lists all references to nt:frozenNode and returns an exit code of 1 if any are found (0 otherwise).
+ * <p/>
+ * This variant does a *very expensive repository scan* for all properties formatted as uuid
+ * ( LIKE \"________-____-____-____-____________\" )
+ * and checking if any reference points to an nt:frozenNode (under /jcr:system/jcr:versionStorage
+ * at depth > 7).
+ * <p/>
+ * Note that any property with uuid that cannot be resolved will *not be reported*, as that
+ * is a legitimate use case of uuid property use. Only uuids that resolve will be analysed.
+ * <p/>
+ * Also note that this command has a few test parameters which can be used to "easily"
+ * create a property with a reference (or just a string for that matter too).
+ * <p/>
+ * Example: 
+ * <pre>
+ * java -mx4g -jar oak-run-*.jar frozennoderefsbyscanning mongodb://localhost/&lt;dbname&gt; -user=admin -password=admin
+ * </pre>
+ * <p/>
+ * Test Example for creating a reference:
+ * <pre>
+ * java -mx4g -jar oak-run-*.jar frozennoderefsbyscanning mongodb://localhost/&lt;dbname&gt; -user=admin -password=admin -testCreateRefPath=&lt;mypath&gt; -testCreateRefProp=&lt;mypropertyname&gt; -testCreateRefUuid=&lt;myuuid&gt; -read-write=true
+ * </pre>
+ */
+public class FrozenNodeRefsByScanningCommand implements Command {
+
+    static {
+        // disable any query limits as our query is going to be a fulls can, and we are aware of it

Review comment:
       thx! fixed




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