792f606a64
Contains the cql3 grammer and supporting classes, which will be converted one by one. From commit bf599fb5b062cbcc652da78b7d699e7a01b949ad.
78 lines
2.5 KiB
Java
78 lines
2.5 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.exceptions.ConfigurationException;
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import org.apache.cassandra.exceptions.InvalidRequestException;
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import org.apache.cassandra.exceptions.RequestValidationException;
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import org.apache.cassandra.auth.Permission;
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import org.apache.cassandra.exceptions.UnauthorizedException;
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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.thrift.ThriftValidation;
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import org.apache.cassandra.transport.Event;
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public class DropKeyspaceStatement extends SchemaAlteringStatement
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{
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private final String keyspace;
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private final boolean ifExists;
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public DropKeyspaceStatement(String keyspace, boolean ifExists)
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{
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super();
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this.keyspace = keyspace;
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this.ifExists = ifExists;
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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(keyspace, Permission.DROP);
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}
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public void validate(ClientState state) throws RequestValidationException
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{
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ThriftValidation.validateKeyspaceNotSystem(keyspace);
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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 keyspace;
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}
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public boolean announceMigration(boolean isLocalOnly) throws ConfigurationException
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{
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try
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{
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MigrationManager.announceKeyspaceDrop(keyspace, isLocalOnly);
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return true;
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}
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catch(ConfigurationException e)
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{
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if (ifExists)
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return false;
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throw e;
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}
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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.DROPPED, keyspace());
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}
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}
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