content: /*
   * 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.asterix.common.metadata;
  
  import org.apache.asterix.common.functions.FunctionConstants;
  import org.apache.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
  
  public class MetadataUtil {
      public static final int PENDING_NO_OP = 0;
      public static final int PENDING_ADD_OP = 1;
      public static final int PENDING_DROP_OP = 2;
  
      private MetadataUtil() {
      }
  
      public static String pendingOpToString(int pendingOp) {
          switch (pendingOp) {
              case PENDING_NO_OP:
                  return "Pending No Operation";
              case PENDING_ADD_OP:
                  return "Pending Add Operation";
              case PENDING_DROP_OP:
                  return "Pending Drop Operation";
              default:
                  return "Unknown Pending Operation";
          }
      }
  
      public static String dataverseName(String databaseName, DataverseName dataverseName, boolean useDb) {
          return useDb ? databaseName + "." + dataverseName : String.valueOf(dataverseName);
      }
  
      public static String getFullyQualifiedDisplayName(DataverseName dataverseName, String objectName) {
          return dataverseName + "." + objectName;
      }
  
      public static String getFullyQualifiedDisplayName(String databaseName, DataverseName dataverseName,
              String objectName) {
          return databaseName + "." + dataverseName + "." + objectName;
      }
  
      public static String databaseFor(DataverseName dataverse) {
          if (dataverse == null) {
              return null;
          }
          if (MetadataConstants.METADATA_DATAVERSE_NAME.equals(dataverse)) {
              return MetadataConstants.SYSTEM_DATABASE;
          } else if (FunctionConstants.ASTERIX_DV.equals(dataverse)) {
              return FunctionConstants.ASTERIX_DB;
          } else if (FunctionConstants.ALGEBRICKS_DV.equals(dataverse)) {
              return AlgebricksBuiltinFunctions.ALGEBRICKS_DB;
          } else {
              return MetadataConstants.DEFAULT_DATABASE;
          }
      }
  
      public static String resolveDatabase(String database, DataverseName dataverse) {
          if (dataverse == null) {
              return null;
          }
          if (database != null) {
              return database;
          }
          return databaseFor(dataverse);
      }
  }
  