content: /*
   * Copyright 2024-2025 the original author or authors.
   *
   * 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
   *
   *      https://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.cloud.ai.graph.serializer.plain_text.jackson;
  
  import java.io.IOException;
  import java.util.HashMap;
  import java.util.Iterator;
  import java.util.Map;
  
  import com.fasterxml.jackson.core.JsonParser;
  import com.fasterxml.jackson.databind.DeserializationContext;
  import com.fasterxml.jackson.databind.JsonNode;
  import com.fasterxml.jackson.databind.ObjectMapper;
  import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
  import com.fasterxml.jackson.databind.node.ObjectNode;
  
  class GenericMapDeserializer extends StdDeserializer<Map<String, Object>> {
  
  	final TypeMapper typeMapper;
  
  	public GenericMapDeserializer(TypeMapper mapper) {
  		super(Map.class);
  		this.typeMapper = mapper;
  	}
  
  	@Override
  	public Map<String, Object> deserialize(JsonParser p, DeserializationContext ctx) throws IOException {
  		var mapper = (ObjectMapper) p.getCodec();
  		final ObjectNode node = mapper.readTree(p);
  
  		final Map<String, Object> result = new HashMap<>();
  
  		final Iterator<Map.Entry<String, JsonNode>> fields = node.fields();
  
  		while (fields.hasNext()) {
  			final var entry = fields.next();
  
  			result.put(entry.getKey(), JacksonDeserializer.valueFromNode(entry.getValue(), mapper, typeMapper));
  		}
  
  		return result;
  	}
  
  }
  