catalog.h

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// Copyright 2012 Cloudera Inc.
//
// Licensed 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.

#ifndef IMPALA_CATALOG_CATALOG_H
#define IMPALA_CATALOG_CATALOG_H

#include <jni.h>

#include "gen-cpp/Frontend_types.h"
#include "gen-cpp/CatalogInternalService_types.h"
#include "gen-cpp/CatalogService_types.h"
#include "common/status.h"

namespace impala {

class Catalog {
 public:
  Catalog();

  Status ExecDdl(const TDdlExecRequest& req, TDdlExecResponse* resp);

  Status UpdateCatalog(const TUpdateCatalogRequest& req,
      TUpdateCatalogResponse* resp);

  Status ResetMetadata(const TResetMetadataRequest& req, TResetMetadataResponse* resp);

  Status GetCatalogVersion(long* version);

  Status GetAllCatalogObjects(long from_version, TGetAllCatalogObjectsResponse* resp);

  Status GetCatalogObject(const TCatalogObject& request, TCatalogObject* response);

  Status GetDbNames(const std::string* pattern, TGetDbsResult* table_names);

  Status GetTableNames(const std::string& db, const std::string* pattern,
      TGetTablesResult* table_names);

  Status GetFunctions(const TGetFunctionsRequest& request,
      TGetFunctionsResponse *response);

  Status PrioritizeLoad(const TPrioritizeLoadRequest& req);

  Status SentryAdminCheck(const TSentryAdminCheckRequest& req);

 private:
  jclass catalog_class_;

  jobject catalog_;  // instance of com.cloudera.impala.service.JniCatalog
  jmethodID update_metastore_id_;  // JniCatalog.updateMetaastore()
  jmethodID exec_ddl_id_;  // JniCatalog.execDdl()
  jmethodID reset_metadata_id_;  // JniCatalog.resetMetdata()
  jmethodID get_catalog_object_id_;  // JniCatalog.getCatalogObject()
  jmethodID get_catalog_objects_id_;  // JniCatalog.getCatalogObjects()
  jmethodID get_catalog_version_id_;  // JniCatalog.getCatalogVersion()
  jmethodID get_db_names_id_; // JniCatalog.getDbNames()
  jmethodID get_table_names_id_; // JniCatalog.getTableNames()
  jmethodID get_functions_id_; // JniCatalog.getFunctions()
  jmethodID prioritize_load_id_; // JniCatalog.prioritizeLoad()
  jmethodID sentry_admin_check_id_; // JniCatalog.checkUserSentryAdmin()
  jmethodID catalog_ctor_;
};

}
#endif