Apache
/
lucene
mirror of https://github.com/apache/lucene.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Fix license location and CloudSolrClient leak

This commit is contained in:
Kevin Risden 2016-04-28 15:08:22 -05:00
parent 01a21000ab
commit e554ae404c
14 changed files with 209 additions and 201 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
solr/core/src/java/org/apache/solr/handler/sql/SolrEnumerator.java
View File

@ -1,12 +1,3 @@
package org.apache.solr.handler.sql;
import java.io.IOException;
import java.util.List;
import org.apache.calcite.linq4j.Enumerator;
import org.apache.solr.client.solrj.io.Tuple;
import org.apache.solr.client.solrj.io.stream.TupleStream;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
@ -23,6 +14,14 @@ import org.apache.solr.client.solrj.io.stream.TupleStream;
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.handler.sql;
import java.io.IOException;
import java.util.List;
import org.apache.calcite.linq4j.Enumerator;
import org.apache.solr.client.solrj.io.Tuple;
import org.apache.solr.client.solrj.io.stream.TupleStream;
/** Enumerator that reads from a Solr collection. */
class SolrEnumerator implements Enumerator<Object> {

33
solr/core/src/java/org/apache/solr/handler/sql/SolrFilter.java
View File

@ -1,3 +1,19 @@
/*
* 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.solr.handler.sql;
import java.util.ArrayList;
@ -16,23 +32,6 @@ import org.apache.calcite.rex.RexInputRef;
import org.apache.calcite.rex.RexLiteral;
import org.apache.calcite.rex.RexNode;
/*
* 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.
*/
/**
* Implementation of a {@link org.apache.calcite.rel.core.Filter} relational expression in Solr.
*/

15
solr/core/src/java/org/apache/solr/handler/sql/SolrMethod.java
View File

@ -1,11 +1,3 @@
package org.apache.solr.handler.sql;
import java.lang.reflect.Method;
import java.util.List;
import com.google.common.collect.ImmutableMap;
import org.apache.calcite.linq4j.tree.Types;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
@ -22,6 +14,13 @@ import org.apache.calcite.linq4j.tree.Types;
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.handler.sql;
import java.lang.reflect.Method;
import java.util.List;
import com.google.common.collect.ImmutableMap;
import org.apache.calcite.linq4j.tree.Types;
/**
* Builtin methods in the Solr adapter.

33
solr/core/src/java/org/apache/solr/handler/sql/SolrProject.java
View File

@ -1,3 +1,19 @@
/*
* 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.solr.handler.sql;
import java.util.HashMap;
@ -16,23 +32,6 @@ import org.apache.calcite.rel.type.RelDataType;
import org.apache.calcite.rex.RexNode;
import org.apache.calcite.util.Pair;
/*
* 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.
*/
/**
* Implementation of {@link org.apache.calcite.rel.core.Project} relational expression in Solr.
*/

25
solr/core/src/java/org/apache/solr/handler/sql/SolrRel.java
View File

@ -1,14 +1,3 @@
package org.apache.solr.handler.sql;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.calcite.plan.Convention;
import org.apache.calcite.plan.RelOptTable;
import org.apache.calcite.rel.RelNode;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
@ -25,6 +14,16 @@ import org.apache.calcite.rel.RelNode;
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.handler.sql;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.calcite.plan.Convention;
import org.apache.calcite.plan.RelOptTable;
import org.apache.calcite.rel.RelNode;
/**
* Relational expression that uses Solr calling convention.
@ -32,8 +31,8 @@ import org.apache.calcite.rel.RelNode;
public interface SolrRel extends RelNode {
void implement(Implementor implementor);
/** Calling convention for relational operations that occur in Cassandra. */
Convention CONVENTION = new Convention.Impl("SOLR", SolrRel.class);
/** Calling convention for relational operations that occur in Solr. */
Convention CONVENTION = new Convention.Impl("Solr", SolrRel.class);
/** Callback for the implementation process that converts a tree of {@link SolrRel} nodes into a Solr query. */
class Implementor {

33
solr/core/src/java/org/apache/solr/handler/sql/SolrRules.java
View File

@ -1,3 +1,19 @@
/*
* 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.solr.handler.sql;
import java.util.AbstractList;
@ -19,23 +35,6 @@ import org.apache.calcite.rex.RexNode;
import org.apache.calcite.rex.RexVisitorImpl;
import org.apache.calcite.sql.validate.SqlValidatorUtil;
/*
* 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.
*/
/**
* Rules and relational operators for
* {@link SolrRel#CONVENTION}

67
solr/core/src/java/org/apache/solr/handler/sql/SolrSchema.java
View File

@ -1,3 +1,19 @@
/*
* 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.solr.handler.sql;
import java.io.IOException;
@ -20,53 +36,40 @@ import org.apache.solr.client.solrj.request.LukeRequest;
import org.apache.solr.client.solrj.response.LukeResponse;
import org.apache.solr.common.luke.FieldFlag;
/*
* 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.
*/
class SolrSchema extends AbstractSchema {
final CloudSolrClient cloudSolrClient;
final String zk;
SolrSchema(String zk) {
super();
this.cloudSolrClient = new CloudSolrClient(zk);
this.cloudSolrClient.connect();
this.zk = zk;
}
@Override
protected Map<String, Table> getTableMap() {
this.cloudSolrClient.connect();
Set<String> collections = this.cloudSolrClient.getZkStateReader().getClusterState().getCollections();
final ImmutableMap.Builder<String, Table> builder = ImmutableMap.builder();
for (String collection : collections) {
builder.put(collection, new SolrTable(this, collection));
try(CloudSolrClient cloudSolrClient = new CloudSolrClient.Builder().withZkHost(zk).build()) {
cloudSolrClient.connect();
Set<String> collections = cloudSolrClient.getZkStateReader().getClusterState().getCollections();
final ImmutableMap.Builder<String, Table> builder = ImmutableMap.builder();
for (String collection : collections) {
builder.put(collection, new SolrTable(this, collection));
}
return builder.build();
} catch (IOException e) {
throw new RuntimeException(e);
}
return builder.build();
}
private Map<String, LukeResponse.FieldInfo> getFieldInfo(String collection) {
LukeRequest lukeRequest = new LukeRequest();
lukeRequest.setNumTerms(0);
LukeResponse lukeResponse;
try {
lukeResponse = lukeRequest.process(cloudSolrClient, collection);
try(CloudSolrClient cloudSolrClient = new CloudSolrClient.Builder().withZkHost(zk).build()) {
cloudSolrClient.connect();
LukeRequest lukeRequest = new LukeRequest();
lukeRequest.setNumTerms(0);
LukeResponse lukeResponse = lukeRequest.process(cloudSolrClient, collection);
return lukeResponse.getFieldInfo();
} catch (SolrServerException | IOException e) {
throw new RuntimeException(e);
}
return lukeResponse.getFieldInfo();
}
RelProtoDataType getRelDataType(String collection) {

15
solr/core/src/java/org/apache/solr/handler/sql/SolrSchemaFactory.java
View File

@ -1,11 +1,3 @@
package org.apache.solr.handler.sql;
import java.util.Map;
import org.apache.calcite.schema.Schema;
import org.apache.calcite.schema.SchemaFactory;
import org.apache.calcite.schema.SchemaPlus;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
@ -22,6 +14,13 @@ import org.apache.calcite.schema.SchemaPlus;
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.handler.sql;
import java.util.Map;
import org.apache.calcite.schema.Schema;
import org.apache.calcite.schema.SchemaFactory;
import org.apache.calcite.schema.SchemaPlus;
@SuppressWarnings("UnusedDeclaration")
public class SolrSchemaFactory implements SchemaFactory {

33
solr/core/src/java/org/apache/solr/handler/sql/SolrSort.java
View File

@ -1,3 +1,19 @@
/*
* 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.solr.handler.sql;
import java.util.ArrayList;
@ -16,23 +32,6 @@ import org.apache.calcite.rel.type.RelDataTypeField;
import org.apache.calcite.rex.RexLiteral;
import org.apache.calcite.rex.RexNode;
/*
* 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.
*/
/**
* Implementation of {@link org.apache.calcite.rel.core.Sort} relational expression in Solr.
*/

51
solr/core/src/java/org/apache/solr/handler/sql/SolrTable.java
View File

@ -1,3 +1,19 @@
/*
* 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.solr.handler.sql;
import java.io.IOException;
@ -26,23 +42,6 @@ import org.apache.solr.client.solrj.io.stream.CloudSolrStream;
import org.apache.solr.client.solrj.io.stream.TupleStream;
import org.apache.solr.common.params.CommonParams;
/*
* 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.
*/
/**
* Table based on a Solr collection
*/
@ -70,18 +69,18 @@ public class SolrTable extends AbstractQueryableTable implements TranslatableTab
return protoRowType.apply(typeFactory);
}
public Enumerable<Object> query(final CloudSolrClient cloudSolrClient) {
return query(cloudSolrClient, Collections.emptyList(), Collections.emptyList(), Collections.emptyList(), null);
public Enumerable<Object> query(final String zk) {
return query(zk, Collections.emptyList(), Collections.emptyList(), Collections.emptyList(), null);
}
/** Executes a Solr query on the underlying table.
*
* @param cloudSolrClient Solr CloudSolrClient
* @param zk Solr ZooKeeper connection string
* @param fields List of fields to project
* @param filterQueries A list of filterQueries which should be used in the query
* @return Enumerator of results
*/
public Enumerable<Object> query(final CloudSolrClient cloudSolrClient, List<String> fields,
public Enumerable<Object> query(final String zk, List<String> fields,
List<String> filterQueries, List<String> order, String limit) {
Map<String, String> solrParams = new HashMap<>();
solrParams.put(CommonParams.Q, "*:*");
@ -117,7 +116,7 @@ public class SolrTable extends AbstractQueryableTable implements TranslatableTab
public Enumerator<Object> enumerator() {
TupleStream cloudSolrStream;
try {
cloudSolrStream = new CloudSolrStream(cloudSolrClient.getZkHost(), collection, solrParams);
cloudSolrStream = new CloudSolrStream(zk, collection, solrParams);
cloudSolrStream.open();
} catch (IOException e) {
throw new RuntimeException(e);
@ -144,7 +143,7 @@ public class SolrTable extends AbstractQueryableTable implements TranslatableTab
public Enumerator<T> enumerator() {
//noinspection unchecked
final Enumerable<T> enumerable = (Enumerable<T>) getTable().query(getCloudSolrClient());
final Enumerable<T> enumerable = (Enumerable<T>) getTable().query(getZK());
return enumerable.enumerator();
}
@ -152,8 +151,8 @@ public class SolrTable extends AbstractQueryableTable implements TranslatableTab
return (SolrTable) table;
}
private CloudSolrClient getCloudSolrClient() {
return schema.unwrap(SolrSchema.class).cloudSolrClient;
private String getZK() {
return schema.unwrap(SolrSchema.class).zk;
}
/** Called via code-generation.
@ -162,7 +161,7 @@ public class SolrTable extends AbstractQueryableTable implements TranslatableTab
*/
@SuppressWarnings("UnusedDeclaration")
public Enumerable<Object> query(List<String> fields, List<String> filterQueries, List<String> order, String limit) {
return getTable().query(getCloudSolrClient(), fields, filterQueries, order, limit);
return getTable().query(getZK(), fields, filterQueries, order, limit);
}
}
}

25
solr/core/src/java/org/apache/solr/handler/sql/SolrTableScan.java
View File

@ -1,16 +1,3 @@
package org.apache.solr.handler.sql;
import java.util.List;
import org.apache.calcite.plan.RelOptCluster;
import org.apache.calcite.plan.RelOptPlanner;
import org.apache.calcite.plan.RelOptRule;
import org.apache.calcite.plan.RelOptTable;
import org.apache.calcite.plan.RelTraitSet;
import org.apache.calcite.rel.RelNode;
import org.apache.calcite.rel.core.TableScan;
import org.apache.calcite.rel.type.RelDataType;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
@ -27,6 +14,18 @@ import org.apache.calcite.rel.type.RelDataType;
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.handler.sql;
import java.util.List;
import org.apache.calcite.plan.RelOptCluster;
import org.apache.calcite.plan.RelOptPlanner;
import org.apache.calcite.plan.RelOptRule;
import org.apache.calcite.plan.RelOptTable;
import org.apache.calcite.plan.RelTraitSet;
import org.apache.calcite.rel.RelNode;
import org.apache.calcite.rel.core.TableScan;
import org.apache.calcite.rel.type.RelDataType;
/**
* Relational expression representing a scan of a Solr collection.

33
solr/core/src/java/org/apache/solr/handler/sql/SolrToEnumerableConverter.java
View File

@ -1,3 +1,19 @@
/*
* 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.solr.handler.sql;
import java.util.ArrayList;
@ -27,23 +43,6 @@ import org.apache.calcite.rel.type.RelDataType;
import org.apache.calcite.runtime.Hook;
import org.apache.calcite.util.BuiltInMethod;
/*
* 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.
*/
/**
* Relational expression representing a scan of a table in Solr
*/

13
solr/core/src/java/org/apache/solr/handler/sql/SolrToEnumerableConverterRule.java
View File

@ -1,10 +1,3 @@
package org.apache.solr.handler.sql;
import org.apache.calcite.adapter.enumerable.EnumerableConvention;
import org.apache.calcite.plan.RelTraitSet;
import org.apache.calcite.rel.RelNode;
import org.apache.calcite.rel.convert.ConverterRule;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
@ -21,6 +14,12 @@ import org.apache.calcite.rel.convert.ConverterRule;
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.handler.sql;
import org.apache.calcite.adapter.enumerable.EnumerableConvention;
import org.apache.calcite.plan.RelTraitSet;
import org.apache.calcite.rel.RelNode;
import org.apache.calcite.rel.convert.ConverterRule;
/**
* Rule to convert a relational expression from {@link SolrRel#CONVENTION} to {@link EnumerableConvention}.

17
solr/core/src/java/org/apache/solr/handler/sql/package-info.java
View File

@ -1,3 +1,20 @@
/*
* 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.
*/
/**
* Classes related to Apache Calcite implementation in {@link org.apache.solr.handler.SQLHandler}
*/