/*
* 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.Preconditions;
import com.google.common.base.Strings;
import io.crate.Constants;
import io.crate.metadata.ColumnIdent;
import io.crate.metadata.FulltextAnalyzerResolver;
import io.crate.metadata.ReferenceInfos;
import io.crate.metadata.TableIdent;
import io.crate.sql.tree.*;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.common.inject.Inject;
import java.util.Locale;
public class CreateTableStatementAnalyzer extends AbstractStatementAnalyzer<Void, CreateTableAnalysis> {
private static final TablePropertiesAnalyzer TABLE_PROPERTIES_ANALYZER = new TablePropertiesAnalyzer();
private final ReferenceInfos referenceInfos;
private final FulltextAnalyzerResolver fulltextAnalyzerResolver;
@Inject
public CreateTableStatementAnalyzer(ReferenceInfos referenceInfos,
FulltextAnalyzerResolver fulltextAnalyzerResolver) {
this.referenceInfos = referenceInfos;
this.fulltextAnalyzerResolver = fulltextAnalyzerResolver;
}
@Override
public Analysis newAnalysis(Analyzer.ParameterContext parameterContext) {
return new CreateTableAnalysis(referenceInfos, fulltextAnalyzerResolver, parameterContext);
}
protected Void visitNode(Node node, CreateTableAnalysis context) {
throw new RuntimeException(
String.format("Encountered node %s but expected a CreateTable node", node));
}
@Override
public Void visitCreateTable(CreateTable node, CreateTableAnalysis context) {
TableIdent tableIdent = TableIdent.of(node.name());
Preconditions.checkArgument(Strings.isNullOrEmpty(tableIdent.schema()),
"A custom schema name must not be specified in the CREATE TABLE clause");
context.table(tableIdent);
// apply default in case it is not specified in the genericProperties,
// if it is it will get overwritten afterwards.
TABLE_PROPERTIES_ANALYZER.analyze(
context.tableParameter(), new TableParameterInfo(),
node.properties(), context.parameters(), true);
context.analyzedTableElements(TableElementsAnalyzer.analyze(
node.tableElements(),
context.parameters(),
context.fulltextAnalyzerResolver()));
context.analyzedTableElements().finalizeAndValidate();
// update table settings
context.tableParameter().settingsBuilder().put(context.analyzedTableElements().settings());
for (CrateTableOption option : node.crateTableOptions()) {
process(option, context);
}
return null;
}
@Override
public Void visitClusteredBy(ClusteredBy node, CreateTableAnalysis context) {
if (node.column().isPresent()) {
ColumnIdent routingColumn = ColumnIdent.fromPath(
ExpressionToStringVisitor.convert(node.column().get(), context.parameters()));
if (!context.hasColumnDefinition(routingColumn)) {
throw new IllegalArgumentException(
String.format(Locale.ENGLISH, "Invalid or non-existent routing column \"%s\"",
routingColumn));
}
if (context.primaryKeys().size() > 0 && !context.primaryKeys().contains(routingColumn.fqn())) {
throw new IllegalArgumentException("Clustered by column must be part of primary keys");
}
context.routing(routingColumn);
}
int numShards;
if (node.numberOfShards().isPresent()) {
numShards = ExpressionToNumberVisitor.convert(node.numberOfShards().get(), context.parameters()).intValue();
if (numShards < 1) {
throw new IllegalArgumentException("num_shards in CLUSTERED clause must be greater than 0");
}
} else {
numShards = Constants.DEFAULT_NUM_SHARDS;
}
context.tableParameter().settingsBuilder().put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, numShards);
return null;
}
@Override
public Void visitPartitionedBy(PartitionedBy node, CreateTableAnalysis context) {
for (Expression partitionByColumn : node.columns()) {
ColumnIdent partitionedByIdent = ColumnIdent.fromPath(
ExpressionToStringVisitor.convert(partitionByColumn, context.parameters()));
context.analyzedTableElements().changeToPartitionedByColumn(partitionedByIdent, false);
ColumnIdent routing = context.routing();
if (routing != null && routing.equals(partitionedByIdent)) {
throw new IllegalArgumentException(
"Cannot use CLUSTERED BY column in PARTITIONED BY clause");
}
}
return null;
}
}