/* * 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.cassandra.cql3.statements; import java.io.IOException; import java.util.concurrent.TimeoutException; import org.apache.cassandra.auth.Permission; import org.apache.cassandra.cql3.*; import org.apache.cassandra.exceptions.*; import org.apache.cassandra.transport.messages.ResultMessage; import org.apache.cassandra.service.ClientState; import org.apache.cassandra.service.QueryState; import org.apache.cassandra.service.StorageProxy; import org.apache.cassandra.thrift.ThriftValidation; public class TruncateStatement extends CFStatement implements CQLStatement { public TruncateStatement(CFName name) { super(name); } public int getBoundsTerms() { return 0; } public Prepared prepare() throws InvalidRequestException { return new Prepared(this); } public void checkAccess(ClientState state) throws InvalidRequestException, UnauthorizedException { state.hasColumnFamilyAccess(keyspace(), columnFamily(), Permission.MODIFY); } public void validate(ClientState state) throws InvalidRequestException { ThriftValidation.validateColumnFamily(keyspace(), columnFamily()); } public ResultMessage execute(QueryState state, QueryOptions options) throws InvalidRequestException, TruncateException { try { StorageProxy.truncateBlocking(keyspace(), columnFamily()); } catch (UnavailableException e) { throw new TruncateException(e); } catch (TimeoutException e) { throw new TruncateException(e); } catch (IOException e) { throw new TruncateException(e); } return null; } public ResultMessage executeInternal(QueryState state) { throw new UnsupportedOperationException(); } }