Package org.lealone.cassandra.command.ddl

Source Code of org.lealone.cassandra.command.ddl.CreateKeyspace

/*
* Copyright 2011 The Apache Software Foundation
*
* 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.lealone.cassandra.command.ddl;

import org.apache.cassandra.cql3.statements.KSPropDefs;
import org.apache.cassandra.exceptions.AlreadyExistsException;
import org.apache.cassandra.service.MigrationManager;
import org.lealone.cassandra.command.CommandConstants;
import org.lealone.command.ddl.DefineCommand;
import org.lealone.dbobject.User;
import org.lealone.engine.Database;
import org.lealone.engine.Session;
import org.lealone.message.DbException;

public class CreateKeyspace extends DefineCommand {

    private String keyspaceName;
    private String authorization;
    private boolean ifNotExists;

    private KSPropDefs defs;

    public CreateKeyspace(Session session) {
        super(session);
    }

    public void setIfNotExists(boolean ifNotExists) {
        this.ifNotExists = ifNotExists;
    }

    public void setKeyspaceName(String keyspaceName) {
        this.keyspaceName = keyspaceName;
    }

    public void setAuthorization(String userName) {
        this.authorization = userName;
    }

    public void setKSPropDefs(KSPropDefs defs) {
        this.defs = defs;
    }

    @Override
    public int getType() {
        return CommandConstants.CREATE_KEYSPACE;
    }

    @Override
    public int update() {
        session.getUser().checkAdmin();
        session.commit(true);
        Database db = session.getDatabase();
        User user = db.getUser(authorization);
        user.checkAdmin();
        try {
            MigrationManager.announceNewKeyspace(defs.asKSMetadata(keyspaceName));
        } catch (AlreadyExistsException e) {
            if (!ifNotExists)
                throw DbException.convert(e);
        } catch (Exception e) {
            throw DbException.convert(e);
        }
        return 0;
    }
}
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