Package net.sourceforge.plantuml.json

Class JsonParser

  • public class JsonParser
extends java.lang.Object
    A streaming parser for JSON text. The parser reports all events to a given handler.

    • Constructor Summary

      Constructors 
      Constructor Description
      JsonParser​(JsonHandler<?,​?> handler)
      Creates a new JsonParser with the given handler.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void parse​(java.io.Reader reader)
      Reads the entire input from the given reader and parses it as JSON.
      void parse​(java.io.Reader reader, int buffersize)
      Reads the entire input from the given reader and parses it as JSON.
      void parse​(java.lang.String string)
      Parses the given input string.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • JsonParser

        public JsonParser​(JsonHandler<?,​?> handler)
        Creates a new JsonParser with the given handler. The parser will report all parser events to this handler.
        Parameters:
        handler - the handler to process parser events

    • Method Detail

      • parse

        public void parse​(java.lang.String string)
        Parses the given input string. The input must contain a valid JSON value, optionally padded with whitespace.
        Parameters:
        string - the input string, must be valid JSON
        Throws:
        ParseException - if the input is not valid JSON

      • parse

        public void parse​(java.io.Reader reader)
           throws java.io.IOException
        Reads the entire input from the given reader and parses it as JSON. The input must contain a valid JSON value, optionally padded with whitespace.

        Characters are read in chunks into a default-sized input buffer. Hence, wrapping a reader in an additional BufferedReader likely won't improve reading performance.

        Parameters:
        reader - the reader to read the input from
        Throws:
        java.io.IOException - if an I/O error occurs in the reader
        ParseException - if the input is not valid JSON

      • parse

        public void parse​(java.io.Reader reader,
                  int buffersize)
           throws java.io.IOException
        Reads the entire input from the given reader and parses it as JSON. The input must contain a valid JSON value, optionally padded with whitespace.

        Characters are read in chunks into an input buffer of the given size. Hence, wrapping a reader in an additional BufferedReader likely won't improve reading performance.

        Parameters:
        reader - the reader to read the input from
        buffersize - the size of the input buffer in chars
        Throws:
        java.io.IOException - if an I/O error occurs in the reader
        ParseException - if the input is not valid JSON