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TestInsertQueryMaker.java
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/
TestInsertQueryMaker.java
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/*
* 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.druid.sql.calcite;
import com.google.common.collect.ImmutableList;
import org.apache.calcite.rel.type.RelDataType;
import org.apache.calcite.rel.type.RelDataTypeFactory;
import org.apache.calcite.runtime.Hook;
import org.apache.calcite.sql.type.SqlTypeName;
import org.apache.druid.java.util.common.IAE;
import org.apache.druid.java.util.common.guava.Sequence;
import org.apache.druid.java.util.common.guava.Sequences;
import org.apache.druid.segment.column.RowSignature;
import org.apache.druid.sql.calcite.rel.DruidQuery;
import org.apache.druid.sql.calcite.run.QueryFeature;
import org.apache.druid.sql.calcite.run.QueryMaker;
/**
* QueryMaker used by {@link CalciteInsertDmlTest}.
*/
public class TestInsertQueryMaker implements QueryMaker
{
private final RelDataType resultType;
private final String targetDataSource;
private final RowSignature signature;
public TestInsertQueryMaker(
final RelDataTypeFactory typeFactory,
final String targetDataSource,
final RowSignature signature
)
{
this.resultType = typeFactory.createStructType(
ImmutableList.of(
typeFactory.createSqlType(SqlTypeName.VARCHAR),
typeFactory.createSqlType(SqlTypeName.OTHER)
),
ImmutableList.of("dataSource", "signature")
);
this.targetDataSource = targetDataSource;
this.signature = signature;
}
@Override
public boolean feature(final QueryFeature feature)
{
switch (feature) {
// INSERT queries should stick to groupBy, scan.
case CAN_RUN_TIMESERIES:
case CAN_RUN_TOPN:
case CAN_RUN_TIME_BOUNDARY:
return false;
// INSERT uses external data.
case CAN_READ_EXTERNAL_DATA:
return true;
// INSERT uses Scan + ORDER BY.
case SCAN_CAN_ORDER_BY_NON_TIME:
return true;
default:
throw new IAE("Unrecognized feature: %s", feature);
}
}
@Override
public RelDataType getResultType()
{
return resultType;
}
@Override
public Sequence<Object[]> runQuery(final DruidQuery druidQuery)
{
// Don't actually execute anything, but do record information that tests will check for.
// 1) Add the query to Hook.QUERY_PLAN, so it gets picked up by QueryLogHook.
Hook.QUERY_PLAN.run(druidQuery.getQuery());
// 2) Return the dataSource and signature of the insert operation, so tests can confirm they are correct.
return Sequences.simple(ImmutableList.of(new Object[]{targetDataSource, signature}));
}
}