| /* |
| * 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.hadoop.hbase.quotas.policies; |
| |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import org.apache.hadoop.hbase.quotas.SpaceViolationPolicy; |
| import org.apache.hadoop.hbase.quotas.SpaceViolationPolicyEnforcement; |
| import org.apache.yetus.audience.InterfaceAudience; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * A {@link SpaceViolationPolicyEnforcement} implementation which disables all updates and |
| * compactions. The enforcement counterpart to {@link SpaceViolationPolicy#NO_WRITES_COMPACTIONS}. |
| */ |
| @InterfaceAudience.Private |
| public class NoWritesCompactionsViolationPolicyEnforcement |
| extends NoWritesViolationPolicyEnforcement { |
| private static final Logger LOG = |
| LoggerFactory.getLogger(NoWritesCompactionsViolationPolicyEnforcement.class); |
| |
| private AtomicBoolean disableCompactions = new AtomicBoolean(false); |
| |
| @Override |
| public synchronized void enable() { |
| boolean ret = disableCompactions.compareAndSet(false, true); |
| if (!ret && LOG.isTraceEnabled()) { |
| LOG.trace("Compactions were already disabled upon enabling the policy"); |
| } |
| } |
| |
| @Override |
| public synchronized void disable() { |
| boolean ret = disableCompactions.compareAndSet(true, false); |
| if (!ret && LOG.isTraceEnabled()) { |
| LOG.trace("Compactions were already enabled upon disabling the policy"); |
| } |
| } |
| |
| @Override |
| public String getPolicyName() { |
| return SpaceViolationPolicy.NO_WRITES_COMPACTIONS.name(); |
| } |
| |
| @Override |
| public boolean areCompactionsDisabled() { |
| return disableCompactions.get(); |
| } |
| } |