Module me.linusdev.data

Package de.linusdev.data.parser

Class JsonReader

java.lang.Object

de.linusdev.data.parser.JsonReader

public class JsonReader
extends Object

A Reader like class, that makes reading a json-object much easier.

Constructor Summary

Constructors

Constructor	Description
JsonReader(Reader reader)

Method Summary

Modifier and Type	Method	Description
void	close()
void	pushBack(int i)	Pushes given character back, so the next read(ParseTracker) call will read it. The push back buffer supports only a single character, if the buffer is not empty, it will be overwritten, and the old character will be lost.
int	read(@NotNull ParseTracker tracker)	reads to the next character, which integer value is not below 33.
String	readString(boolean allowNewLine, @NotNull ParseTracker tracker)	reads until a '"' is read.
@Nullable Object	readValue(@NotNull ParseTracker tracker)	reads until ',' is read.

Methods inherited from class java.lang.Object

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

Constructor Details

JsonReader

public JsonReader(Reader reader)

Method Details

pushBack

public void pushBack(int i)

Pushes given character back, so the next read(ParseTracker) call will read it.
The push back buffer supports only a single character, if the buffer is not empty, it will be overwritten, and the old character will be lost.

Parameters:

i - character to push back

read

public int read(@NotNull
 @NotNull ParseTracker tracker)
         throws IOException

reads to the next character, which integer value is not below 33.

Returns:

next character or -1 if end of the stream is reached.

Throws:

IOException

readValue

@Nullable
public @Nullable Object readValue(@NotNull
 @NotNull ParseTracker tracker)
                           throws IOException,
ParseException

reads until ',' is read. the ',' will be pushed back.

Parameters:

tracker - ParseTracker

Returns:

read value, may be Boolean, null or Number

Throws:

IOException - while reading or parsing

ParseException - while reading or parsing

readString

public String readString(boolean allowNewLine,
 @NotNull
 @NotNull ParseTracker tracker)
                  throws IOException,
UnexpectedEndException,
UnexpectedCharacterException

reads until a '"' is read.

Parameters:

allowNewLine - whether to allow a line break while reading

tracker - ParseTracker

Returns:

read String

Throws:

IOException - while reading or parsing

UnexpectedEndException - while reading or parsing

UnexpectedCharacterException - while reading or parsing

close

public void close()