Package io.airlift.json

Class JsonCodec<T>

java.lang.Object
io.airlift.json.JsonCodec<T>
public class JsonCodec<T> extends Object

  • Method Details

    • jsonCodec

      public static <T> JsonCodec<T> jsonCodec(Class<T> type)

    • jsonCodec

      public static <T> JsonCodec<T> jsonCodec(com.google.common.reflect.TypeToken<T> type)

    • listJsonCodec

      public static <T> JsonCodec<List<T>> listJsonCodec(Class<T> type)

    • listJsonCodec

      public static <T> JsonCodec<List<T>> listJsonCodec(JsonCodec<T> type)

    • mapJsonCodec

      public static <K, V> JsonCodec<Map<K,V>> mapJsonCodec(Class<K> keyType, Class<V> valueType)

    • mapJsonCodec

      public static <K, V> JsonCodec<Map<K,V>> mapJsonCodec(Class<K> keyType, JsonCodec<V> valueType)

    • getType

      public Type getType()
      Gets the type this codec supports.

    • fromJson

      public T fromJson(String json) throws IllegalArgumentException
      Converts the specified json string into an instance of type T.
      Parameters:
      json - the json string to parse
      Returns:
      parsed response; never null
      Throws:
      IllegalArgumentException - if the json string can not be converted to the type T

    • toJson

      public String toJson(T instance) throws IllegalArgumentException
      Converts the specified instance to json.
      Parameters:
      instance - the instance to convert to json
      Returns:
      json string
      Throws:
      IllegalArgumentException - if the specified instance can not be converted to json

    • toJsonWithLengthLimit

      public Optional<String> toJsonWithLengthLimit(T instance, int lengthLimit)
      Converts the specified instance to optional json string with a length limit. Returns Optional.empty() if length limit is exceeded.
      Parameters:
      instance - the instance to convert to json
      lengthLimit - the maximum length of the serialized string in characters
      Returns:
      json string
      Throws:
      IllegalArgumentException - if the specified instance can not be converted to json

    • fromJson

      public T fromJson(byte[] json) throws IllegalArgumentException
      Coverts the specified json bytes (UTF-8) into an instance of type T.
      Parameters:
      json - the json bytes (UTF-8) to parse
      Returns:
      parsed response; never null
      Throws:
      IllegalArgumentException - if the json bytes can not be converted to the type T

    • toJsonBytes

      public byte[] toJsonBytes(T instance) throws IllegalArgumentException
      Converts the specified instance to json.
      Parameters:
      instance - the instance to convert to json
      Returns:
      json bytes (UTF-8)
      Throws:
      IllegalArgumentException - if the specified instance can not be converted to json