/*
* Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
* license agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership. Crate 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial agreement.
*/
package io.crate.analyze;
import com.google.common.base.Joiner;
import io.crate.exceptions.SchemaUnknownException;
import io.crate.exceptions.TableUnknownException;
import io.crate.metadata.ReferenceInfos;
import io.crate.metadata.TableIdent;
import io.crate.metadata.table.SchemaInfo;
import io.crate.metadata.table.TableInfo;
public class DropTableAnalysis extends AbstractDDLAnalysis {
private TableInfo tableInfo;
private final ReferenceInfos referenceInfos;
public DropTableAnalysis(ReferenceInfos referenceInfos) {
super(null);
this.referenceInfos = referenceInfos;
}
public String index() {
return tableIdent.name();
}
@Override
public void table(TableIdent tableIdent) {
SchemaInfo schemaInfo = referenceInfos.getSchemaInfo(tableIdent.schema());
if (schemaInfo == null) {
throw new SchemaUnknownException(tableIdent.schema());
}
if (schemaInfo.systemSchema()) {
throw new UnsupportedOperationException(
String.format("cannot delete '%s'.", Joiner.on('.').join(tableIdent.schema(), tableIdent.name())));
}
TableInfo tableInfo = schemaInfo.getTableInfo(tableIdent.name());
if (tableInfo == null) {
throw new TableUnknownException(tableIdent.name());
} else if (tableInfo.isAlias()) {
throw new UnsupportedOperationException("Table alias not allowed in DROP TABLE statement.");
}
this.tableIdent = tableIdent;
this.tableInfo = tableInfo;
}
@Override
public TableInfo table() {
return tableInfo;
}
@Override
public void normalize() { }
@Override
public <C, R> R accept(AnalysisVisitor<C, R> analysisVisitor, C context) {
return analysisVisitor.visitDropTableAnalysis(this, context);
}
@Override
public boolean isData() {
// TODO: remove DropTableAnalysis from Planner and extend DDLVisitor in the Transport
return true;
}
}