org.apache.hadoop.hbase.quotas.policies.NoWritesViolationPolicyEnforcement Maven / Gradle / Ivy
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Server functionality for HBase
/*
* 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 org.apache.hadoop.hbase.client.Append;
import org.apache.hadoop.hbase.client.Delete;
import org.apache.hadoop.hbase.client.Increment;
import org.apache.hadoop.hbase.client.Mutation;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.quotas.SpaceLimitingException;
import org.apache.hadoop.hbase.quotas.SpaceViolationPolicy;
import org.apache.hadoop.hbase.quotas.SpaceViolationPolicyEnforcement;
import org.apache.yetus.audience.InterfaceAudience;
/**
* A {@link SpaceViolationPolicyEnforcement} implementation which disables all writes flowing into
* HBase. The enforcement counterpart to {@link SpaceViolationPolicy#NO_WRITES}.
*/
@InterfaceAudience.Private
public class NoWritesViolationPolicyEnforcement extends DefaultViolationPolicyEnforcement {
@Override
public void enable() {
}
@Override
public void disable() {
}
@Override
public void check(Mutation m) throws SpaceLimitingException {
if (m instanceof Append || m instanceof Delete || m instanceof Increment || m instanceof Put) {
throw new SpaceLimitingException(getPolicyName(),
m.getClass().getSimpleName() + "s are disallowed due to a space quota.");
}
}
@Override
public String getPolicyName() {
return SpaceViolationPolicy.NO_WRITES.name();
}
}