alphavantage/com.crazzyghost.alphavantage.parser/DefaultParser

DefaultParser

public abstract class DefaultParser<T> extends Parser<T>

A Parser for the metadata-plus-time-series reply shape most Alpha Vantage endpoints use, where the first top-level key holds the metadata and the second holds the data keyed by timestamp.

Subclasses receive those two maps already separated, so they only map fields.

Author

Sylvester Sefa-Yeboah

Since

1.4.0

Parameters

<T>

the response type produced by this parser

Inheritors

Constructors

DefaultParser

public void DefaultParser()

Functions

getNumberFromString

public static N getNumberFromString<N extends Number>(String s, Function<String, N> parser)

onParseError

public abstract T onParseError(String error)

Produces the value this parser returns in place of a response object when the reply cannot be parsed, for example an empty or unrecognizable JSON body.

parse

public T parse(Map<String, Object> object)

Maps the decoded JSON body of an Alpha Vantage reply to a response object.

public abstract T parse(Map<String, String> metaData, Map<String, Map<String, String>> data)

parseJSON

public static Map<String, Object> parseJSON(String responseBody)

Decodes a raw JSON response body into a generic String-keyed map, with the NoneableDouble/NoneableLong adapters registered so numeric-or-"None" fields decode correctly.

public static U parseJSON(String responseBody, Class c)

Decodes a raw JSON response body directly into an instance of c, with the NoneableDouble/NoneableLong adapters registered so numeric-or-"None" fields decode correctly.

parseJSONList

public static List parseJSONList(Object object, Class klass)

Converts an already-decoded JSON value, typically a List produced by parseJSON, into a List of klass instances, with the NoneableDouble/NoneableLong adapters registered so numeric-or-"None" fields decode correctly.

toJSON

public static String toJSON(Map<String, Object> data)

Encodes a String-keyed map back into a JSON string, with the NoneableDouble/NoneableLong adapters registered.