Line data    Source code

       1              : /*
       2              :  *    Copyright (c) 2025 Project CHIP Authors
       3              :  *    All rights reserved.
       4              :  *
       5              :  *    Licensed under the Apache License, Version 2.0 (the "License");
       6              :  *    you may not use this file except in compliance with the License.
       7              :  *    You may obtain a copy of the License at
       8              :  *
       9              :  *        http://www.apache.org/licenses/LICENSE-2.0
      10              :  *
      11              :  *    Unless required by applicable law or agreed to in writing, software
      12              :  *    distributed under the License is distributed on an "AS IS" BASIS,
      13              :  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      14              :  *    See the License for the specific language governing permissions and
      15              :  *    limitations under the License.
      16              :  */
      17              : #include <app/server-cluster/AttributeListBuilder.h>
      18              : 
      19              : #include <app/server-cluster/DefaultServerCluster.h>
      20              : 
      21              : namespace chip {
      22              : namespace app {
      23              : 
      24           16 : CHIP_ERROR AttributeListBuilder::Append(Span<const DataModel::AttributeEntry> mandatoryAttributes,
      25              :                                         Span<const DataModel::AttributeEntry> optionalAttributes,
      26              :                                         AttributeSet enabledOptionalAttributes)
      27              : {
      28              :     // determine how much data to append. This should only be called if generally we have something to append
      29           16 :     size_t append_size = mandatoryAttributes.size();
      30           96 :     for (const auto & entry : optionalAttributes)
      31              :     {
      32           80 :         if (enabledOptionalAttributes.IsSet(entry.attributeId))
      33              :         {
      34           35 :             append_size++;
      35              :         }
      36              :     }
      37              : 
      38           16 :     if (append_size > 0)
      39              :     {
      40              :         // NOTE: ReferenceExisting will APPEND data (and use heap) when some data already
      41              :         //       exists in the builder. This is why we ensure AppendCapacity for everything
      42              :         //       so that we do not perform extra allocations.
      43           14 :         ReturnErrorOnFailure(mBuilder.EnsureAppendCapacity(append_size + DefaultServerCluster::GlobalAttributes().size()));
      44           14 :         ReturnErrorOnFailure(mBuilder.ReferenceExisting(mandatoryAttributes));
      45              : 
      46           90 :         for (const auto & entry : optionalAttributes)
      47              :         {
      48           76 :             if (enabledOptionalAttributes.IsSet(entry.attributeId))
      49              :             {
      50           35 :                 ReturnErrorOnFailure(mBuilder.Append(entry));
      51              :             }
      52              :         }
      53              :     }
      54              : 
      55              :     // NOTE: ReferenceExisting will APPEND data (and use heap) when some data already
      56              :     //       exists in the builder.
      57           16 :     return mBuilder.ReferenceExisting(DefaultServerCluster::GlobalAttributes());
      58              : }
      59              : 
      60            9 : CHIP_ERROR AttributeListBuilder::Append(Span<const DataModel::AttributeEntry> mandatoryAttributes,
      61              :                                         Span<const OptionalAttributeEntry> optionalAttributes)
      62              : {
      63              :     // determine how much data to append. This should only be called if generally we have something to append
      64            9 :     size_t append_size = mandatoryAttributes.size();
      65           14 :     for (const auto & entry : optionalAttributes)
      66              :     {
      67            5 :         if (entry.enabled)
      68              :         {
      69            3 :             append_size++;
      70              :         }
      71              :     }
      72              : 
      73            9 :     if (append_size > 0)
      74              :     {
      75              :         // NOTE: ReferenceExisting will APPEND data (and use heap) when some data already
      76              :         //       exists in the builder. This is why we ensure AppendCapacity for everything
      77              :         //       so that we do not perform extra allocations.
      78            8 :         ReturnErrorOnFailure(mBuilder.EnsureAppendCapacity(append_size + DefaultServerCluster::GlobalAttributes().size()));
      79            8 :         ReturnErrorOnFailure(mBuilder.ReferenceExisting(mandatoryAttributes));
      80              : 
      81           13 :         for (const auto & entry : optionalAttributes)
      82              :         {
      83            5 :             if (entry.enabled)
      84              :             {
      85            3 :                 ReturnErrorOnFailure(mBuilder.Append(entry.metadata));
      86              :             }
      87              :         }
      88              :     }
      89              : 
      90              :     // NOTE: ReferenceExisting will APPEND data (and use heap) when some data already
      91              :     //       exists in the builder.
      92            9 :     return mBuilder.ReferenceExisting(DefaultServerCluster::GlobalAttributes());
      93              : }
      94              : } // namespace app
      95              : } // namespace chip