content: /**
   * Copyright 2020 Alibaba Group Holding Limited.
   *
   * Licensed 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 com.alibaba.graphscope.groot.wal.kafka;
  
  import com.alibaba.graphscope.groot.common.exception.InternalException;
  import com.alibaba.graphscope.groot.wal.LogEntry;
  import com.alibaba.graphscope.proto.groot.LogEntryPb;
  import com.google.protobuf.InvalidProtocolBufferException;
  
  import org.apache.kafka.common.serialization.Deserializer;
  
  import java.util.Map;
  
  public class LogEntryDeserializer implements Deserializer<LogEntry> {
      @Override
      public void configure(Map<String, ?> configs, boolean isKey) {}
  
      @Override
      public LogEntry deserialize(String topic, byte[] data) {
          if (data == null) {
              return null;
          }
          try {
              return LogEntry.parseProto(LogEntryPb.parseFrom(data));
          } catch (InvalidProtocolBufferException e) {
              throw new InternalException(e);
          }
      }
  
      @Override
      public void close() {}
  }
  