CDL

public class CDL

This provides static methods to convert comma delimited text into a JSONArray, and to covert a JSONArray into comma delimited text. Comma delimited text is a very popular format for data interchange. It is understood by most database, spreadsheet, and organizer programs.

Each row of text represents a row in a table or a data record. Each row ends with a NEWLINE character. Each row contains one or more values. Values are separated by commas. A value can contain any character except for comma, unless is is wrapped in single quotes or double quotes.

The first row usually contains the names of the columns.

A comma delimited list can be converted into a JSONArray of JSONObjects. The names for the elements in the JSONObjects can be taken from the names in the first row.

Author:JSON.org

Methods

rowToJSONArray

public static JSONArray rowToJSONArray(JSONTokener x)

Produce a JSONArray of strings from a row of comma delimited values.

Parameters:
  • x – A JSONTokener of the source text.
Throws:
Returns:

A JSONArray of strings.

rowToJSONObject

public static JSONObject rowToJSONObject(JSONArray names, JSONTokener x)

Produce a JSONObject from a row of comma delimited text, using a parallel JSONArray of strings to provides the names of the elements.

Parameters:
  • names – A JSONArray of names. This is commonly obtained from the first row of a comma delimited text file using the rowToJSONArray method.
  • x – A JSONTokener of the source text.
Throws:
Returns:

A JSONObject combining the names and values.

rowToString

public static String rowToString(JSONArray ja)

Produce a comma delimited text row from a JSONArray. Values containing the comma character will be quoted. Troublesome characters may be removed.

Parameters:
  • ja – A JSONArray of strings.
Returns:

A string ending in NEWLINE.

toJSONArray

public static JSONArray toJSONArray(String string)

Produce a JSONArray of JSONObjects from a comma delimited text string, using the first row as a source of names.

Parameters:
  • string – The comma delimited text.
Throws:
Returns:

A JSONArray of JSONObjects.

toJSONArray

public static JSONArray toJSONArray(JSONTokener x)

Produce a JSONArray of JSONObjects from a comma delimited text string, using the first row as a source of names.

Parameters:
  • x – The JSONTokener containing the comma delimited text.
Throws:
Returns:

A JSONArray of JSONObjects.

toJSONArray

public static JSONArray toJSONArray(JSONArray names, String string)

Produce a JSONArray of JSONObjects from a comma delimited text string using a supplied JSONArray as the source of element names.

Parameters:
  • names – A JSONArray of strings.
  • string – The comma delimited text.
Throws:
Returns:

A JSONArray of JSONObjects.

toJSONArray

public static JSONArray toJSONArray(JSONArray names, JSONTokener x)

Produce a JSONArray of JSONObjects from a comma delimited text string using a supplied JSONArray as the source of element names.

Parameters:
  • names – A JSONArray of strings.
  • x – A JSONTokener of the source text.
Throws:
Returns:

A JSONArray of JSONObjects.

toString

public static String toString(JSONArray ja)

Produce a comma delimited text from a JSONArray of JSONObjects. The first row will be a list of names obtained by inspecting the first JSONObject.

Parameters:
  • ja – A JSONArray of JSONObjects.
Throws:
Returns:

A comma delimited text.

toString

public static String toString(JSONArray names, JSONArray ja)

Produce a comma delimited text from a JSONArray of JSONObjects using a provided list of names. The list of names is not included in the output.

Parameters:
  • names – A JSONArray of strings.
  • ja – A JSONArray of JSONObjects.
Throws:
Returns:

A comma delimited text.