792f606a64
Contains the cql3 grammer and supporting classes, which will be converted one by one. From commit bf599fb5b062cbcc652da78b7d699e7a01b949ad.
98 lines
4.0 KiB
Java
98 lines
4.0 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.cassandra.cql3.statements;
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import org.apache.cassandra.auth.Permission;
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import org.apache.cassandra.config.DatabaseDescriptor;
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import org.apache.cassandra.config.KSMetaData;
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import org.apache.cassandra.config.Schema;
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import org.apache.cassandra.db.SystemKeyspace;
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import org.apache.cassandra.exceptions.*;
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import org.apache.cassandra.locator.AbstractReplicationStrategy;
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import org.apache.cassandra.service.ClientState;
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import org.apache.cassandra.service.MigrationManager;
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import org.apache.cassandra.service.StorageService;
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import org.apache.cassandra.transport.Event;
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public class AlterKeyspaceStatement extends SchemaAlteringStatement
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{
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private final String name;
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private final KSPropDefs attrs;
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public AlterKeyspaceStatement(String name, KSPropDefs attrs)
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{
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super();
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this.name = name;
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this.attrs = attrs;
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}
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@Override
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public String keyspace()
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{
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return name;
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}
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public void checkAccess(ClientState state) throws UnauthorizedException, InvalidRequestException
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{
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state.hasKeyspaceAccess(name, Permission.ALTER);
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}
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public void validate(ClientState state) throws RequestValidationException
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{
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KSMetaData ksm = Schema.instance.getKSMetaData(name);
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if (ksm == null)
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throw new InvalidRequestException("Unknown keyspace " + name);
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if (ksm.name.equalsIgnoreCase(SystemKeyspace.NAME))
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throw new InvalidRequestException("Cannot alter system keyspace");
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attrs.validate();
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if (attrs.getReplicationStrategyClass() == null && !attrs.getReplicationOptions().isEmpty())
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{
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throw new ConfigurationException("Missing replication strategy class");
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}
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else if (attrs.getReplicationStrategyClass() != null)
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{
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// The strategy is validated through KSMetaData.validate() in announceKeyspaceUpdate below.
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// However, for backward compatibility with thrift, this doesn't validate unexpected options yet,
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// so doing proper validation here.
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AbstractReplicationStrategy.validateReplicationStrategy(name,
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AbstractReplicationStrategy.getClass(attrs.getReplicationStrategyClass()),
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StorageService.instance.getTokenMetadata(),
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DatabaseDescriptor.getEndpointSnitch(),
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attrs.getReplicationOptions());
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}
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}
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public boolean announceMigration(boolean isLocalOnly) throws RequestValidationException
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{
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KSMetaData ksm = Schema.instance.getKSMetaData(name);
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// In the (very) unlikely case the keyspace was dropped since validate()
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if (ksm == null)
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throw new InvalidRequestException("Unknown keyspace " + name);
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MigrationManager.announceKeyspaceUpdate(attrs.asKSMetadataUpdate(ksm), isLocalOnly);
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return true;
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}
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public Event.SchemaChange changeEvent()
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{
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return new Event.SchemaChange(Event.SchemaChange.Change.UPDATED, keyspace());
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}
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}
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