org.apache.jackrabbit.oak.commons.json
Class JsopBuilder

java.lang.Object
  org.apache.jackrabbit.oak.commons.json.JsopBuilder

All Implemented Interfaces:

JsopWriter

public class JsopBuilder
extends Object
implements JsopWriter

A builder for Json and Jsop strings. It encodes string values, and knows when a comma is needed. A comma is appended before '{', '[', a value, or a key; but only if the last appended token was '}', ']', or a value. There is no limit to the number of nesting levels.

Constructor Summary

JsopBuilder()

Method Summary

JsopBuilder	append(JsopWriter buffer) Append all entries of the given buffer.
JsopBuilder	array() Append '['.
static String	encode(String s) Convert a string to a quoted Json literal using the correct escape sequences.
JsopBuilder	encodedValue(String value) Append an already encoded value.
JsopBuilder	endArray() Append ']'.
JsopBuilder	endObject() Append '}'.
static void	escape(String s, int length, StringBuilder buff) Escape a string into the target buffer.
JsopBuilder	key(String name) Append the key (in quotes) plus a colon.
int	length() Get the buffer length.
JsopBuilder	newline() Append a newline character.
JsopBuilder	object() Append '{'.
static String	prettyPrint(String jsop) Beautify (format) the json / jsop string.
void	resetWriter() Resets this instance.
void	setLineLength(int length) Set the line length, after which a newline is added (to improve readability).
JsopBuilder	tag(char tag) Append a Jsop tag character.
String	toString() Get the generated string.
JsopBuilder	value(boolean value) Append the boolean value 'true' or 'false'.
JsopBuilder	value(long value) Append a number.
JsopBuilder	value(String value) Append a string or null.

Methods inherited from class java.lang.Object

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

Constructor Detail

JsopBuilder

public JsopBuilder()

Method Detail

resetWriter

public void resetWriter()

Resets this instance.

Specified by:

resetWriter in interface JsopWriter

setLineLength

public void setLineLength(int length)

Description copied from interface: JsopWriter

Set the line length, after which a newline is added (to improve readability).

Specified by:

setLineLength in interface JsopWriter

Parameters:

length - the length

append

public JsopBuilder append(JsopWriter buffer)

Append all entries of the given buffer.

Specified by:

append in interface JsopWriter

Parameters:

buffer - the buffer

Returns:

this

tag

public JsopBuilder tag(char tag)

Append a Jsop tag character.

Specified by:

tag in interface JsopWriter

Parameters:

tag - the string to append

Returns:

this

newline

public JsopBuilder newline()

Append a newline character.

Specified by:

newline in interface JsopWriter

Returns:

this

object

public JsopBuilder object()

Append '{'. A comma is appended first if needed.

Specified by:

object in interface JsopWriter

Returns:

this

endObject

public JsopBuilder endObject()

Append '}'.

Specified by:

endObject in interface JsopWriter

Returns:

this

array

public JsopBuilder array()

Append '['. A comma is appended first if needed.

Specified by:

array in interface JsopWriter

Returns:

this

endArray

public JsopBuilder endArray()

Append ']'.

Specified by:

endArray in interface JsopWriter

Returns:

this

key

public JsopBuilder key(String name)

Append the key (in quotes) plus a colon. A comma is appended first if needed.

Specified by:

key in interface JsopWriter

Parameters:

name - the key

Returns:

this

value

public JsopBuilder value(long value)

Append a number. A comma is appended first if needed.

Specified by:

value in interface JsopWriter

Parameters:

value - the value

Returns:

this

value

public JsopBuilder value(boolean value)

Append the boolean value 'true' or 'false'. A comma is appended first if needed.

Specified by:

value in interface JsopWriter

Parameters:

value - the value

Returns:

this

value

public JsopBuilder value(String value)

Append a string or null. A comma is appended first if needed.

Specified by:

value in interface JsopWriter

Parameters:

value - the value

Returns:

this

encodedValue

public JsopBuilder encodedValue(String value)

Append an already encoded value. A comma is appended first if needed.

Specified by:

encodedValue in interface JsopWriter

Parameters:

value - the value

Returns:

this

toString

public String toString()

Get the generated string.

Overrides:

toString in class Object

encode

public static String encode(String s)

Convert a string to a quoted Json literal using the correct escape sequences. The literal is enclosed in double quotes. Characters outside the range 32..127 are encoded (backslash u xxxx). The forward slash (solidus) is not escaped. Null is encoded as "null" (without quotes).

Parameters:

s - the text to convert

Returns:

the Json representation (including double quotes)

escape

public static void escape(String s,
                          int length,
                          StringBuilder buff)

Escape a string into the target buffer.

Parameters:

s - the string to escape

length - the number of characters.

buff - the target buffer

length

public int length()

Get the buffer length.

Returns:

the length

prettyPrint

public static String prettyPrint(String jsop)

Beautify (format) the json / jsop string.

Parameters:

jsop - the jsop string

Returns:

the formatted string