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;
  
  import java.util.Arrays;
  import java.util.EnumSet;
  import java.util.List;
  import java.util.Map;
  
  import com.google.common.collect.Maps;
  import org.eclipse.milo.opcua.stack.core.types.builtin.DiagnosticInfo;
  
  public class DiagnosticsContext<T> {
  
      private final Map<T, DiagnosticInfo> diagnosticsMap = Maps.newConcurrentMap();
  
      public EnumSet<OperationDiagnostic> getRequestedOperationDiagnostics(T t) {
          return null;
      }
  
      public void setOperationDiagnostic(T t, DiagnosticInfo diagnosticInfo) {
  
      }
  
      public Map<T, DiagnosticInfo> getDiagnosticsMap() {
          return diagnosticsMap;
      }
  
      public DiagnosticInfo[] getDiagnosticInfos(T[] ts) {
          return getDiagnosticInfos(Arrays.asList(ts));
      }
  
      public DiagnosticInfo[] getDiagnosticInfos(List<T> ts) {
          if (diagnosticsMap.isEmpty()) {
              return new DiagnosticInfo[0];
          } else {
              DiagnosticInfo[] diagnostics = new DiagnosticInfo[ts.size()];
  
              for (int i = 0; i < ts.size(); i++) {
                  DiagnosticInfo diagnosticInfo = diagnosticsMap.getOrDefault(
                      ts.get(i), DiagnosticInfo.NULL_VALUE);
  
                  diagnostics[i] = diagnosticInfo;
              }
  
              return diagnostics;
          }
      }
  
      public enum OperationDiagnostic {
          SymbolicId,
          LocalizedText,
          InnerStatusCode,
          InnerDiagnostics
      }
  
  }
  