BaseJsonParser (Groovy 6.0.0-alpha-2)

org.apache.groovy.json.internal.BaseJsonParser

All Implemented Interfaces and Traits:

JsonParser
```
public abstract class BaseJsonParser
extends Object
implements JsonParser
```
Base JSON parser. Scaled down version of Boon JsonParser with features removed that are JDK 1.7 dependent or Groovy duplicated functionality.

Field Summary

Fields
Modifiers	Name	Description
`protected static int`	`ALPHA_0`	Character code for digit `0`.
`protected static int`	`ALPHA_1`	Character code for digit `1`.
`protected static int`	`ALPHA_2`	Character code for digit `2`.
`protected static int`	`ALPHA_3`	Character code for digit `3`.
`protected static int`	`ALPHA_4`	Character code for digit `4`.
`protected static int`	`ALPHA_5`	Character code for digit `5`.
`protected static int`	`ALPHA_6`	Character code for digit `6`.
`protected static int`	`ALPHA_7`	Character code for digit `7`.
`protected static int`	`ALPHA_8`	Character code for digit `8`.
`protected static int`	`ALPHA_9`	Character code for digit `9`.
`protected static int`	`CLOSED_BRACKET`	Character code for the closing array delimiter `]`.
`protected static int`	`CLOSED_CURLY`	Character code for the closing object delimiter }.
`protected static int`	`COLON`	Character code for the `:` name/value separator.
`protected static int`	`COMMA`	Character code for the `,` element separator.
`protected static int`	`DECIMAL_POINT`	Character code for the decimal point in number literals.
`static int`	`DEFAULT_MAX_NESTING_DEPTH`	Default maximum nesting depth for arrays/objects.
`protected static int`	`DOUBLE_QUOTE`	Character code for the JSON string delimiter `"`.
`protected static int`	`ESCAPE`	Character code for the JSON escape marker `\`.
`protected static int`	`LETTER_BIG_E`	Uppercase exponent marker used in JSON numbers.
`protected static int`	`LETTER_E`	Lowercase exponent marker used in JSON numbers.
`protected static int`	`MINUS`	Character code for the minus sign in number literals.
`protected static int`	`PLUS`	Character code for the plus sign in exponent literals.
`protected int`	`bufSize`	Initial buffer size used when reading character streams.
`protected String`	`charset`	Charset used for byte-based input when no override is supplied.
`protected static boolean`	`internKeys`	Whether parsed object keys should be interned.
`protected static ConcurrentHashMap<String, String>`	`internedKeysCache`	Cache used when key interning is enabled.
`protected int`	`maxNestingDepth`	Maximum nesting depth permitted for this parser.

Methods Summary

Methods
Type Params	Return Type	Name and description
	`protected String`	`charDescription(int c)` Builds a readable description of a character code for parser errors.
	`protected final void`	`enterNesting()` Records entry into a nested array or object, enforcing maxNestingDepth.
	`protected final void`	`exitNesting()` Records exit from a nested array or object.
	`protected static int`	`findEndQuote(char[] array, int index)` Finds the closing quote of a JSON string while honoring escapes.
	`public int`	`getMaxNestingDepth()` Returns the maximum nesting depth permitted while parsing.
	`protected static boolean`	`hasEscapeChar(char[] array, int index, int[] indexHolder)` Scans a string body until it finds an escape or the closing quote.
	`protected static boolean`	`isDecimalChar(int currentChar)` Checks whether a character can appear in a decimal JSON number.
	`protected static boolean`	`isDelimiter(int c)` Checks whether a character terminates the current JSON value.
	`protected static final boolean`	`isDoubleQuote(int c)` Checks whether a character code is a double quote.
	`protected static final boolean`	`isEscape(int c)` Checks whether a character code is the JSON escape marker.
	`protected static final boolean`	`isNumberDigit(int c)` Checks whether a character code is an ASCII digit.
	`public Object`	`parse(String jsonString)` Parses a JSON string.
	`public Object`	`parse(byte[] bytes)` Parses JSON bytes using the parser's configured charset.
	`public Object`	`parse(byte[] bytes, String charset)` Parses JSON bytes using the supplied charset.
	`public Object`	`parse(CharSequence charSequence)` Parses JSON from a character sequence.
	`public Object`	`parse(Reader reader)` Parses JSON from a reader.
	`public Object`	`parse(InputStream input)` Parses JSON from a byte stream using the configured charset.
	`public Object`	`parse(InputStream input, String charset)` Parses JSON from a byte stream using the supplied charset.
	`public Object`	`parse(File file, String charset)` Parses JSON from a file.
	`protected final void`	`resetNesting()` Resets the nesting-depth counter; called at the start of a top-level parse so a reused parser instance starts cleanly.
	`public void`	`setCharset(String charset)` Sets the default charset used for byte and stream input.
	`public void`	`setMaxNestingDepth(int maxNestingDepth)` Sets the maximum nesting depth permitted while parsing.

Inherited Methods Summary

Inherited Methods
Methods inherited from class	Name
`class Object`	`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- Field Detail
  - protected static final int ALPHA_0
    
    Character code for digit 0.
  - protected static final int ALPHA_1
    
    Character code for digit 1.
  - protected static final int ALPHA_2
    
    Character code for digit 2.
  - protected static final int ALPHA_3
    
    Character code for digit 3.
  - protected static final int ALPHA_4
    
    Character code for digit 4.
  - protected static final int ALPHA_5
    
    Character code for digit 5.
  - protected static final int ALPHA_6
    
    Character code for digit 6.
  - protected static final int ALPHA_7
    
    Character code for digit 7.
  - protected static final int ALPHA_8
    
    Character code for digit 8.
  - protected static final int ALPHA_9
    
    Character code for digit 9.
  - protected static final int CLOSED_BRACKET
    
    Character code for the closing array delimiter ].
  - protected static final int CLOSED_CURLY
    
    Character code for the closing object delimiter }.
  - protected static final int COLON
    
    Character code for the : name/value separator.
  - protected static final int COMMA
    
    Character code for the , element separator.
  - protected static final int DECIMAL_POINT
    
    Character code for the decimal point in number literals.
  - public static final int DEFAULT_MAX_NESTING_DEPTH
    
    Default maximum nesting depth for arrays/objects. A small, crafted but deeply-nested document would otherwise drive the recursive-descent parsers into a StackOverflowError; this Groovy-level bound turns that into a clean JsonException instead. Chosen to match Jackson's StreamReadConstraints default so JSON is bounded consistently with the Jackson-backed YAML/TOML/CSV slurpers, while sitting far above any realistic document.
  - protected static final int DOUBLE_QUOTE
    
    Character code for the JSON string delimiter ".
  - protected static final int ESCAPE
    
    Character code for the JSON escape marker \.
  - protected static final int LETTER_BIG_E
    
    Uppercase exponent marker used in JSON numbers.
  - protected static final int LETTER_E
    
    Lowercase exponent marker used in JSON numbers.
  - protected static final int MINUS
    
    Character code for the minus sign in number literals.
  - protected static final int PLUS
    
    Character code for the plus sign in exponent literals.
  - protected int bufSize
    
    Initial buffer size used when reading character streams.
  - protected String charset
    
    Charset used for byte-based input when no override is supplied.
  - protected static final boolean internKeys
    
    Whether parsed object keys should be interned.
  - protected static final ConcurrentHashMap<String, String> internedKeysCache
    
    Cache used when key interning is enabled.
  - protected int maxNestingDepth
    
    Maximum nesting depth permitted for this parser. A value of 0 or less disables the check (restoring the previous, unbounded behaviour). Defaults to DEFAULT_MAX_NESTING_DEPTH, overridable globally via the groovy.json.maxNestingDepth system property.
- Method Detail
  - protected String charDescription(int c)
    
    Builds a readable description of a character code for parser errors.
    Parameters:
    c - character code to describe
    Returns:
    human-readable description of c
  - protected final void enterNesting()
    
    Records entry into a nested array or object, enforcing maxNestingDepth.
    throws:
    JsonException if the configured maximum nesting depth would be exceeded
  - protected final void exitNesting()
    
    Records exit from a nested array or object.
  - protected static int findEndQuote(char[] array, int index)
    
    Finds the closing quote of a JSON string while honoring escapes.
    Parameters:
    array - source buffer
    index - index at which to start scanning
    Returns:
    index of the terminating quote or the buffer end
  - public int getMaxNestingDepth()
    
    Returns the maximum nesting depth permitted while parsing.
    Returns:
    the maximum nesting depth, or a value <= 0 when the check is disabled
  - protected static boolean hasEscapeChar(char[] array, int index, int[] indexHolder)
    
    Scans a string body until it finds an escape or the closing quote.
    Parameters:
    array - source buffer
    index - index at which to start scanning
    indexHolder - single-item holder updated with the stop index
    Returns:
    true when an escape character is encountered before the closing quote
  - protected static boolean isDecimalChar(int currentChar)
    
    Checks whether a character can appear in a decimal JSON number.
    Parameters:
    currentChar - character code to test
    Returns:
    true for decimal-number markers
  - protected static boolean isDelimiter(int c)
    
    Checks whether a character terminates the current JSON value.
    Parameters:
    c - character code to test
    Returns:
    true when c is a value delimiter
  - protected static final boolean isDoubleQuote(int c)
    
    Checks whether a character code is a double quote.
    Parameters:
    c - character code to test
    Returns:
    true when c is "
  - protected static final boolean isEscape(int c)
    
    Checks whether a character code is the JSON escape marker.
    Parameters:
    c - character code to test
    Returns:
    true when c is \
  - protected static final boolean isNumberDigit(int c)
    
    Checks whether a character code is an ASCII digit.
    Parameters:
    c - character code to test
    Returns:
    true when c is between 0 and 9
  - public Object parse(String jsonString)
    
    Parses a JSON string.
    Parameters:
    jsonString - JSON text to parse
    Returns:
    parsed Groovy JSON value
  - public Object parse(byte[] bytes)
    
    Parses JSON bytes using the parser's configured charset.
    Parameters:
    bytes - JSON bytes to parse
    Returns:
    parsed Groovy JSON value
  - public Object parse(byte[] bytes, String charset)
    
    Parses JSON bytes using the supplied charset.
    Parameters:
    bytes - JSON bytes to parse
    charset - charset name to use
    Returns:
    parsed Groovy JSON value
  - public Object parse(CharSequence charSequence)
    
    Parses JSON from a character sequence.
    Parameters:
    charSequence - JSON text to parse
    Returns:
    parsed Groovy JSON value
  - public Object parse(Reader reader)
    
    Parses JSON from a reader.
    Parameters:
    reader - reader supplying JSON content
    Returns:
    parsed Groovy JSON value
  - public Object parse(InputStream input)
    
    Parses JSON from a byte stream using the configured charset.
    Parameters:
    input - input stream supplying JSON bytes
    Returns:
    parsed Groovy JSON value
  - public Object parse(InputStream input, String charset)
    
    Parses JSON from a byte stream using the supplied charset.
    Parameters:
    input - input stream supplying JSON bytes
    charset - charset name to use
    Returns:
    parsed Groovy JSON value
  - public Object parse(File file, String charset)
    
    Parses JSON from a file.
    Parameters:
    file - file containing JSON content
    charset - charset name to use, or the platform default when blank
    Returns:
    parsed Groovy JSON value
  - protected final void resetNesting()
    
    Resets the nesting-depth counter; called at the start of a top-level parse so a reused parser instance starts cleanly.
  - public void setCharset(String charset)
    
    Sets the default charset used for byte and stream input.
    Parameters:
    charset - charset name to use for subsequent parsing
  - public void setMaxNestingDepth(int maxNestingDepth)
    
    Sets the maximum nesting depth permitted while parsing. A value of 0 or less disables the check.
    Parameters:
    maxNestingDepth - maximum number of nested arrays/objects to allow

Summary:
Field
Method

| Detail:
Field
Method

[Java] Class BaseJsonParser

Field Summary

Methods Summary

Inherited Methods Summary

Field Detail

protected static final int ALPHA_0

protected static final int ALPHA_1

protected static final int ALPHA_2

protected static final int ALPHA_3

protected static final int ALPHA_4

protected static final int ALPHA_5

protected static final int ALPHA_6

protected static final int ALPHA_7

protected static final int ALPHA_8

protected static final int ALPHA_9

protected static final int CLOSED_BRACKET

protected static final int CLOSED_CURLY

protected static final int COLON

protected static final int COMMA

protected static final int DECIMAL_POINT

public static final int DEFAULT_MAX_NESTING_DEPTH

protected static final int DOUBLE_QUOTE

protected static final int ESCAPE

protected static final int LETTER_BIG_E

protected static final int LETTER_E

protected static final int MINUS

protected static final int PLUS

protected int bufSize

protected String charset

protected static final boolean internKeys

protected static final ConcurrentHashMap<String, String> internedKeysCache

protected int maxNestingDepth

Method Detail

protected String charDescription(int c)

protected final void enterNesting()

protected final void exitNesting()

protected static int findEndQuote(char[] array, int index)

public int getMaxNestingDepth()

protected static boolean hasEscapeChar(char[] array, int index, int[] indexHolder)

protected static boolean isDecimalChar(int currentChar)

protected static boolean isDelimiter(int c)

protected static final boolean isDoubleQuote(int c)

protected static final boolean isEscape(int c)

protected static final boolean isNumberDigit(int c)

public Object parse(String jsonString)

public Object parse(byte[] bytes)

public Object parse(byte[] bytes, String charset)

public Object parse(CharSequence charSequence)

public Object parse(Reader reader)

public Object parse(InputStream input)

public Object parse(InputStream input, String charset)

public Object parse(File file, String charset)

protected final void resetNesting()

public void setCharset(String charset)

public void setMaxNestingDepth(int maxNestingDepth)