| /* |
| * 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.schema; |
| |
| import com.google.inject.Inject; |
| import org.apache.calcite.schema.Schema; |
| import org.apache.druid.server.security.ResourceType; |
| import org.apache.druid.sql.calcite.planner.PlannerConfig; |
| |
| import javax.annotation.Nullable; |
| |
| /** |
| * The schema for Druid system tables to be accessible via SQL. |
| */ |
| public class NamedSystemSchema implements NamedSchema |
| { |
| public static final String NAME = "sys"; |
| |
| private final SystemSchema systemSchema; |
| private final PlannerConfig plannerConfig; |
| |
| @Inject |
| public NamedSystemSchema(PlannerConfig plannerConfig, SystemSchema systemSchema) |
| { |
| this.plannerConfig = plannerConfig; |
| this.systemSchema = systemSchema; |
| } |
| |
| @Override |
| public String getSchemaName() |
| { |
| return NAME; |
| } |
| |
| @Override |
| public Schema getSchema() |
| { |
| return systemSchema; |
| } |
| |
| @Nullable |
| @Override |
| public String getSchemaResourceType(String resourceName) |
| { |
| if (plannerConfig.isAuthorizeSystemTablesDirectly()) { |
| return ResourceType.SYSTEM_TABLE; |
| } |
| return null; |
| } |
| } |