| /* |
| * 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.mongo; |
| |
| import com.mongodb.ReadPreference; |
| |
| import org.apache.jackrabbit.oak.plugins.document.AbstractMongoConnectionTest; |
| import org.apache.jackrabbit.oak.plugins.document.DocumentMK; |
| import org.apache.jackrabbit.oak.plugins.document.LeaseCheckMode; |
| import org.apache.jackrabbit.oak.plugins.document.MongoUtils; |
| import org.apache.jackrabbit.oak.plugins.document.util.MongoConnection; |
| import org.apache.jackrabbit.oak.stats.Clock; |
| import org.junit.After; |
| import org.junit.Test; |
| |
| import static org.apache.jackrabbit.oak.plugins.document.Collection.NODES; |
| import static org.apache.jackrabbit.oak.plugins.document.Collection.SETTINGS; |
| import static org.apache.jackrabbit.oak.plugins.document.mongo.MongoDocumentStore.DocumentReadPreference; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertTrue; |
| |
| public class ReadPreferenceIT extends AbstractMongoConnectionTest { |
| |
| private MongoDocumentStore mongoDS; |
| |
| private DocumentMK mk2; |
| |
| private Clock clock; |
| |
| @Override |
| public void setUpConnection() { |
| clock = new Clock.Virtual(); |
| setRevisionClock(clock); |
| setClusterNodeInfoClock(clock); |
| mongoConnection = connectionFactory.getConnection(); |
| assertNotNull(mongoConnection); |
| MongoUtils.dropCollections(mongoConnection.getDBName()); |
| mk = new DocumentMK.Builder() |
| .clock(clock) |
| .setClusterId(1) |
| .setClientSessionDisabled(true) |
| .setMongoDB(mongoConnection.getMongoClient(), mongoConnection.getDBName()) |
| .setLeaseCheckMode(LeaseCheckMode.DISABLED) |
| .open(); |
| mongoDS = (MongoDocumentStore) mk.getDocumentStore(); |
| |
| // use a separate connection for cluster node 2 |
| MongoConnection mongoConnection2 = connectionFactory.getConnection(); |
| mk2 = new DocumentMK.Builder() |
| .clock(clock) |
| .setClusterId(2) |
| .setClientSessionDisabled(true) |
| .setMongoDB(mongoConnection2.getMongoClient(), mongoConnection2.getDBName()) |
| .setLeaseCheckMode(LeaseCheckMode.DISABLED) |
| .open(); |
| } |
| |
| @After |
| public void tearDown() { |
| // reset readWrite mode before shutting down |
| mongoDS.setReadWriteMode(""); |
| mk2.dispose(); |
| } |
| |
| @Test |
| public void testMongoReadPreferencesDefault() { |
| // start with read preference set to primary |
| mongoDS.setReadWriteMode(rwMode(ReadPreference.primary())); |
| |
| assertEquals(ReadPreference.primary(), |
| mongoDS.getMongoReadPreference(NODES,"foo", DocumentReadPreference.PRIMARY)); |
| |
| assertEquals(ReadPreference.primaryPreferred(), |
| mongoDS.getMongoReadPreference(NODES,"foo", DocumentReadPreference.PREFER_PRIMARY)); |
| |
| //By default Mongo read preference is primary |
| assertEquals(ReadPreference.primary(), |
| mongoDS.getMongoReadPreference(NODES,"foo", DocumentReadPreference.PREFER_SECONDARY)); |
| |
| //Change the default and assert again |
| mongoDS.setReadWriteMode(rwMode(ReadPreference.secondary())); |
| assertEquals(ReadPreference.secondary(), |
| mongoDS.getMongoReadPreference(NODES,"foo", DocumentReadPreference.PREFER_SECONDARY)); |
| |
| //for case where parent age cannot be determined the preference should be primary |
| assertEquals(ReadPreference.primary(), |
| mongoDS.getMongoReadPreference(NODES,"foo", DocumentReadPreference.PREFER_SECONDARY_IF_OLD_ENOUGH)); |
| |
| //For collection other than NODES always primary |
| assertEquals(ReadPreference.primary(), |
| mongoDS.getMongoReadPreference(SETTINGS,"foo", DocumentReadPreference.PREFER_SECONDARY_IF_OLD_ENOUGH)); |
| |
| } |
| |
| @Test |
| public void testReadWriteMode() { |
| mongoDS.setReadWriteMode(rwMode(ReadPreference.primary())); |
| assertEquals(ReadPreference.primary(), mongoDS.getConfiguredReadPreference(NODES)); |
| |
| mongoDS.setReadWriteMode("readPreference=secondary&w=2&safe=true&j=true"); |
| |
| assertEquals(ReadPreference.secondary(), mongoDS.getDBCollection(NODES).getReadPreference()); |
| assertEquals(2, mongoDS.getDBCollection(NODES).getWriteConcern().getW()); |
| Boolean journal = mongoDS.getDBCollection(NODES).getWriteConcern().getJournal(); |
| assertNotNull(journal); |
| assertTrue(journal); |
| |
| assertEquals(ReadPreference.secondary(), mongoDS.getConfiguredReadPreference(NODES)); |
| } |
| |
| private static String rwMode(ReadPreference preference) { |
| return "readpreference=" + preference.getName(); |
| } |
| } |