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.kafka.streams.state.internals;
  
  import org.apache.kafka.common.config.ConfigException;
  import org.apache.kafka.common.serialization.Serde;
  import org.apache.kafka.streams.errors.StreamsException;
  import org.apache.kafka.streams.kstream.internals.WrappingNullableUtils;
  import org.apache.kafka.streams.processor.StateStoreContext;
  import org.apache.kafka.streams.processor.TaskId;
  import org.apache.kafka.streams.processor.internals.SerdeGetter;
  import org.apache.kafka.streams.state.StateSerdes;
  
  public class StoreSerdeInitializer {
      static <K, V> StateSerdes<K, V> prepareStoreSerde(final StateStoreContext context,
                                                        final String storeName,
                                                        final String changelogTopic,
                                                        final Serde<K> keySerde,
                                                        final Serde<V> valueSerde,
                                                        final PrepareFunc<V> prepareValueSerdeFunc) {
          return new StateSerdes<>(
              changelogTopic,
              prepareSerde(WrappingNullableUtils::prepareKeySerde, storeName, keySerde, new SerdeGetter(context), true, context.taskId()),
              prepareSerde(prepareValueSerdeFunc, storeName, valueSerde, new SerdeGetter(context), false, context.taskId())
          );
      }
  
      private static <T> Serde<T> prepareSerde(final PrepareFunc<T> prepare,
                                               final String storeName,
                                               final Serde<T> serde,
                                               final SerdeGetter getter,
                                               final Boolean isKey,
                                               final TaskId taskId) {
  
          final String serdeType = isKey ? "key" : "value";
          try {
              return prepare.prepareSerde(serde, getter);
          } catch (final ConfigException | StreamsException e) {
              throw new StreamsException(String.format("Failed to initialize %s serdes for store %s", serdeType, storeName), e, taskId);
          }
      }
  }
  
  interface PrepareFunc<T> {
      Serde<T> prepareSerde(Serde<T> serde, SerdeGetter getter);
  }
  