jsonvalues.spec

Class JsReader

java.lang.Object

jsonvalues.spec.JsReader

public final class JsReader
extends Object

Object for processing JSON from byte[] and InputStream. The only public methods are readNextToken() and reset(). Most of the time you don't need to parse a JSON token by token since there are a lot of high-level and efficient alternatives implemented in json-values. Just in case, find below an example:

     
            String json = "[1,2,3]";
            var reader = JsonIO.INSTANCE.createReader(json.getBytes(StandardCharsets.UTF_8));
            byte token;
            while ((token = reader.readNextToken()) != ']'){
                if(Character.isDigit(token)) System.out.println(Character.toString(token));
            }


     

 

You can also read tokens as JsValue and validate them using the method JsSpec.readNextValue(JsReader)

Method Summary

Modifier and Type	Method and Description
byte	readNextToken() Read next token (byte) from input JSON.
void	reset() Reset reader after processing input It will release reference to provided byte[] or InputStream input

Methods inherited from class java.lang.Object

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

Method Detail

reset

public void reset()

Reset reader after processing input It will release reference to provided byte[] or InputStream input

readNextToken

public byte readNextToken()
                   throws JsParserException

Read next token (byte) from input JSON. Whitespace will be skipped and next non-whitespace byte will be returned.

Returns:

next non-whitespace byte in the JSON input

Throws:

JsParserException - unable to get next byte (end of stream, ...)