kafka JsonObject 源码
kafka JsonObject 代码
文件路径：/core/src/main/scala/kafka/utils/json/JsonObject.scala
/**
* 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 kafka.utils.json
import com.fasterxml.jackson.databind.JsonMappingException
import scala.jdk.CollectionConverters._
import com.fasterxml.jackson.databind.node.ObjectNode
import scala.collection.Iterator
/**
* A thin wrapper over Jackson's `ObjectNode` for a more idiomatic API. See `JsonValue` for more details.
*/
class JsonObject private[json] (protected val node: ObjectNode) extends JsonValue {
def apply(name: String): JsonValue =
get(name).getOrElse(throw new JsonMappingException(null, s"No such field exists: `$name`"))
def get(name: String): Option[JsonValue] = Option(node.get(name)).map(JsonValue(_))
def iterator: Iterator[(String, JsonValue)] = node.fields.asScala.map { entry =>
(entry.getKey, JsonValue(entry.getValue))
}
}
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