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.calcite.avatica;
  
  import org.apache.calcite.avatica.proto.Common;
  
  import java.util.Objects;
  
  /**
   * An enumeration that denotes the severity of a given unexpected state.
   */
  public enum AvaticaSeverity {
    /**
     * The severity of the outcome of some unexpected state is unknown.
     */
    UNKNOWN(0),
  
    /**
     * The system has been left in an unrecoverable state as a result of an operation.
     */
    FATAL(1),
  
    /**
     * The result of an action resulted in an error which the current operation cannot recover
     * from. Clients can attempt to execute the operation again.
     */
    ERROR(2),
  
    /**
     * The operation completed successfully but a message was generated to warn the client about
     * some unexpected state or action.
     */
    WARNING(3);
  
    private final int value;
  
    AvaticaSeverity(int value) {
      this.value = value;
    }
  
    public int getValue() {
      return value;
    }
  
    public Common.Severity toProto() {
      switch (this) {
      case UNKNOWN:
        return Common.Severity.UNKNOWN_SEVERITY;
      case FATAL:
        return Common.Severity.FATAL_SEVERITY;
      case ERROR:
        return Common.Severity.ERROR_SEVERITY;
      case WARNING:
        return Common.Severity.WARNING_SEVERITY;
      default:
        throw new RuntimeException("Unhandled Severity level: " + this);
      }
    }
  
    public static AvaticaSeverity fromProto(Common.Severity proto) {
      switch (Objects.requireNonNull(proto)) {
      case UNKNOWN_SEVERITY:
        return AvaticaSeverity.UNKNOWN;
      case FATAL_SEVERITY:
        return AvaticaSeverity.FATAL;
      case ERROR_SEVERITY:
        return AvaticaSeverity.ERROR;
      case WARNING_SEVERITY:
        return AvaticaSeverity.WARNING;
      default:
        throw new RuntimeException("Unhandled protobuf Severity level: " + proto);
      }
    }
  }
  
  // End AvaticaSeverity.java
  