code: /*
   * Copyright (c) 2019 the Eclipse Milo Authors
   *
   * This program and the accompanying materials are made
   * available under the terms of the Eclipse Public License 2.0
   * which is available at https://www.eclipse.org/legal/epl-2.0/
   *
   * SPDX-License-Identifier: EPL-2.0
   */
  
  package org.eclipse.milo.opcua.sdk.server.events.conversions;
  
  import org.eclipse.milo.opcua.stack.core.BuiltinDataType;
  import org.eclipse.milo.opcua.stack.core.types.builtin.LocalizedText;
  import org.eclipse.milo.opcua.stack.core.types.builtin.QualifiedName;
  import org.jetbrains.annotations.NotNull;
  import org.jetbrains.annotations.Nullable;
  
  final class QualifiedNameConversions {
  
      private QualifiedNameConversions() {}
  
      @Nullable
      static String qualifiedNameToString(@NotNull QualifiedName name) {
          return name.getName();
      }
  
      @NotNull
      static LocalizedText qualifiedNameToLocalizedText(@NotNull QualifiedName name) {
          return new LocalizedText("", name.getName());
      }
  
      @Nullable
      static Object convert(@NotNull Object o, BuiltinDataType targetType, boolean implicit) {
          if (o instanceof QualifiedName) {
              QualifiedName name = (QualifiedName) o;
  
              return implicit ?
                  implicitConversion(name, targetType) :
                  explicitConversion(name, targetType);
          } else {
              return null;
          }
      }
  
      @Nullable
      static Object explicitConversion(@NotNull QualifiedName name, BuiltinDataType targetType) {
          return implicitConversion(name, targetType);
      }
  
      @Nullable
      static Object implicitConversion(@NotNull QualifiedName name, BuiltinDataType targetType) {
          //@formatter:off
          switch (targetType) {
              case String:        return qualifiedNameToString(name);
              case LocalizedText: return qualifiedNameToLocalizedText(name);
              default:            return null;
          }
          //@formatter:on
      }
  
  }
  