Index: oak-core/src/main/java/org/apache/jackrabbit/oak/query/stats/StaticStatisticsProviderService.java =================================================================== --- oak-core/src/main/java/org/apache/jackrabbit/oak/query/stats/StaticStatisticsProviderService.java (nonexistent) +++ oak-core/src/main/java/org/apache/jackrabbit/oak/query/stats/StaticStatisticsProviderService.java (working copy) @@ -0,0 +1,48 @@ +/* + * 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.query.stats; + +import org.apache.jackrabbit.oak.stats.StatisticsProvider; +import org.jetbrains.annotations.Nullable; +import org.osgi.service.component.annotations.*; + +/** + * Static provider for {@link StatisticsProvider}. + * + * Note: this static provider should only be used to fetch a {@link StatisticsProvider} when it's not possible to obtain + * it via usual OSGi {@link Reference}. + */ +@Component(immediate = true) +public class StaticStatisticsProviderService { + + @Reference(policy = ReferencePolicy.STATIC, policyOption = ReferencePolicyOption.GREEDY) + private StatisticsProvider statisticsProvider; + + private static StatisticsProvider staticStatisticsProvider; + + protected void activate() { + staticStatisticsProvider = statisticsProvider; + } + + @Nullable + public static StatisticsProvider getStatisticsProvider() { + return staticStatisticsProvider; + } + +}