Package co.elastic.clients.json

Class JsonpUtils

java.lang.Object
co.elastic.clients.json.JsonpUtils
public class JsonpUtils extends Object

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static int
    MAX_TO_STRING_LENGTH
    Deprecated.
    use maxToStringLength(int)

  • Constructor Summary

    Constructors
    Constructor
    Description
    JsonpUtils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static void
    copy(jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonGenerator generator)
    Copy the JSON value at the current parser location to a JSON generator.
    static void
    copy(jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonGenerator generator, jakarta.json.stream.JsonParser.Event event)
    Copy the JSON value at the current parser location to a JSON generator.
    static void
    ensureAccepts(JsonpDeserializer<?> deserializer, jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonParser.Event event)
     
    static void
    ensureCustomVariantsAllowed(jakarta.json.stream.JsonParser parser, JsonpMapper mapper)
     
    static void
    expectEvent(jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonParser.Event expected, jakarta.json.stream.JsonParser.Event event)
     
    static String
    expectKeyName(jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonParser.Event event)
     
    static jakarta.json.stream.JsonParser.Event
    expectNextEvent(jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonParser.Event expected)
    Advances the parser to the next event and checks that this even is the expected one.
    static <Variant> Map.Entry<Variant,jakarta.json.stream.JsonParser>
    findVariant(Map<String,Variant> variants, jakarta.json.stream.JsonParser parser, JsonpMapper mapper)
    In union types, find the variant to be used by looking up property names in the JSON stream until we find one that uniquely identifies the variant.
    static jakarta.json.stream.JsonParser
    jsonValueParser(jakarta.json.JsonValue value, JsonpMapper mapper)
    Create a parser that traverses a JSON value
    static Map.Entry<String,jakarta.json.stream.JsonParser>
    lookAheadFieldValue(String name, String defaultValue, jakarta.json.stream.JsonParser parser, JsonpMapper mapper)
    Looks ahead a field value in the Json object from the upcoming object in a parser, which should be on the START_OBJECT event.
    static int
    maxToStringLength()
    Get the maximum length of the JSON representation of a JsonpSerializable in the result of its toString() method.
    static void
    maxToStringLength(int length)
    Set the maximum length of the JSON representation of a JsonpSerializable in the result of its toString() method.
    static jakarta.json.stream.JsonParser
    objectParser(jakarta.json.JsonObject object, JsonpMapper mapper)
    Deprecated.
    use jsonValueParser(JsonValue, JsonpMapper)
    static jakarta.json.spi.JsonProvider
    provider()
    Get a JsonProvider instance.
    static <T> void
    serialize(T value, jakarta.json.stream.JsonGenerator generator, JsonpSerializer<T> serializer, JsonpMapper mapper)
     
    static void
    serializeDoubleOrNull(jakarta.json.stream.JsonGenerator generator, double value, double defaultValue)
     
    static void
    serializeIntOrNull(jakarta.json.stream.JsonGenerator generator, int value, int defaultValue)
     
    static void
    setProvider(jakarta.json.spi.JsonProvider provider)
    Sets the JsonProvider that will be returned by JsonProvider.
    static void
    skipValue(jakarta.json.stream.JsonParser parser)
    Skip the value at the next position of the parser.
    static void
    skipValue(jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonParser.Event event)
    Skip the value at the current position of the parser.
    static jakarta.json.spi.JsonProvider
    systemProvider()
    Get the system's JsonProvider instance return by ServiceLoader.
    static String
    toJsonString(Object value, JsonpMapper mapper)
     
    static String
    toString(JsonpSerializable value)
    Renders a JsonpSerializable as a string by serializing it to JSON, prefixed by the class name.
    static StringBuilder
    toString(JsonpSerializable value, JsonpMapper mapper, StringBuilder dest)
    Renders a JsonpSerializable as a string in a destination StringBuilderby serializing it to JSON.
    static StringBuilder
    toString(JsonpSerializable value, StringBuilder dest)
    Renders a JsonpSerializable as a string in a destination StringBuilderby serializing it to JSON.
    static String
    toString(jakarta.json.JsonValue value)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

  • Constructor Details

    • JsonpUtils

      public JsonpUtils()

  • Method Details

    • provider

      public static jakarta.json.spi.JsonProvider provider()
      Get a JsonProvider instance. This method first calls the standard `JsonProvider.provider()` that is based on the current thread's context classloader, and in case of failure tries to find a provider in other classloaders. The value is cached for subsequent calls.

    • setProvider

      public static void setProvider(jakarta.json.spi.JsonProvider provider)
      Sets the JsonProvider that will be returned by JsonProvider.

    • systemProvider

      public static jakarta.json.spi.JsonProvider systemProvider()
      Get the system's JsonProvider instance return by ServiceLoader. First calls the standard `JsonProvider.provider()` that is based on the current thread's context classloader, and in case of failure tries to find a provider in other classloaders. The value is cached for subsequent calls.

    • expectNextEvent

      public static jakarta.json.stream.JsonParser.Event expectNextEvent(jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonParser.Event expected)
      Advances the parser to the next event and checks that this even is the expected one.
      Returns:
      the expected event
      Throws:
      jakarta.json.JsonException - if an i/o error occurs (IOException would be cause of JsonException)
      jakarta.json.stream.JsonParsingException - if the event is not the expected one, or if the parser encounters invalid JSON when advancing to next state.
      NoSuchElementException - if there are no more parsing states.

    • expectEvent

      public static void expectEvent(jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonParser.Event expected, jakarta.json.stream.JsonParser.Event event)

    • expectKeyName

      public static String expectKeyName(jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonParser.Event event)

    • ensureAccepts

      public static void ensureAccepts(JsonpDeserializer<?> deserializer, jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonParser.Event event)

    • ensureCustomVariantsAllowed

      public static void ensureCustomVariantsAllowed(jakarta.json.stream.JsonParser parser, JsonpMapper mapper)

    • skipValue

      public static void skipValue(jakarta.json.stream.JsonParser parser)
      Skip the value at the next position of the parser.

    • skipValue

      public static void skipValue(jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonParser.Event event)
      Skip the value at the current position of the parser.

    • copy

      public static void copy(jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonGenerator generator)
      Copy the JSON value at the current parser location to a JSON generator.

    • copy

      public static void copy(jakarta.json.stream.JsonParser parser, jakarta.json.stream.JsonGenerator generator, jakarta.json.stream.JsonParser.Event event)
      Copy the JSON value at the current parser location to a JSON generator.

    • serialize

      public static <T> void serialize(T value, jakarta.json.stream.JsonGenerator generator, @Nullable JsonpSerializer<T> serializer, JsonpMapper mapper)

    • lookAheadFieldValue

      public static Map.Entry<String,jakarta.json.stream.JsonParser> lookAheadFieldValue(String name, String defaultValue, jakarta.json.stream.JsonParser parser, JsonpMapper mapper)
      Looks ahead a field value in the Json object from the upcoming object in a parser, which should be on the START_OBJECT event.

      Returns a pair containing that value and a parser that should be used to actually parse the object (the object has been consumed from the original one).

    • findVariant

      public static <Variant> Map.Entry<Variant,jakarta.json.stream.JsonParser> findVariant(Map<String,Variant> variants, jakarta.json.stream.JsonParser parser, JsonpMapper mapper)
      In union types, find the variant to be used by looking up property names in the JSON stream until we find one that uniquely identifies the variant.
      Type Parameters:
      Variant - the type of variant descriptors used by the caller.
      Parameters:
      variants - a map of variant descriptors, keyed by the property name that uniquely identifies the variant.
      Returns:
      a pair containing the variant descriptor (or null if not found), and a parser to be used to read the JSON object.

    • objectParser

      @Deprecated public static jakarta.json.stream.JsonParser objectParser(jakarta.json.JsonObject object, JsonpMapper mapper)
      Deprecated.
      use jsonValueParser(JsonValue, JsonpMapper)
      Create a parser that traverses a JSON object

    • jsonValueParser

      public static jakarta.json.stream.JsonParser jsonValueParser(jakarta.json.JsonValue value, JsonpMapper mapper)
      Create a parser that traverses a JSON value

    • toString

      public static String toString(jakarta.json.JsonValue value)

    • serializeDoubleOrNull

      public static void serializeDoubleOrNull(jakarta.json.stream.JsonGenerator generator, double value, double defaultValue)

    • serializeIntOrNull

      public static void serializeIntOrNull(jakarta.json.stream.JsonGenerator generator, int value, int defaultValue)

    • toString

      public static String toString(JsonpSerializable value)
      Renders a JsonpSerializable as a string by serializing it to JSON, prefixed by the class name. Any object of an application-specific class in the object graph is rendered using that object's toString() representation as a JSON string value.

      The size of the string is limited to maxToStringLength().

      See Also:

    • maxToStringLength

      public static void maxToStringLength(int length)
      Set the maximum length of the JSON representation of a JsonpSerializable in the result of its toString() method. The default is 10k characters.

    • maxToStringLength

      public static int maxToStringLength()
      Get the maximum length of the JSON representation of a JsonpSerializable in the result of its toString() method. The default is 10k characters.

    • toString

      public static StringBuilder toString(JsonpSerializable value, JsonpMapper mapper, StringBuilder dest)
      Renders a JsonpSerializable as a string in a destination StringBuilderby serializing it to JSON.

      The size of the string is limited to maxToStringLength().

      Returns:
      the dest parameter, for chaining.
      See Also:

    • toJsonString

      public static String toJsonString(Object value, JsonpMapper mapper)

    • toString

      public static StringBuilder toString(JsonpSerializable value, StringBuilder dest)
      Renders a JsonpSerializable as a string in a destination StringBuilderby serializing it to JSON. Any object of an application-specific class in the object graph is rendered using that object's toString() representation as a JSON string value.

      The size of the string is limited to maxToStringLength().

      Returns:
      the dest parameter, for chaining.
      See Also: