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org.apache.wink.json4j.utils
Class XML

java.lang.Object
  org.apache.wink.json4j.utils.XML

public class XML
extends Object

This class is a static helper for various ways of converting an XML document/InputStream into a JSON stream or String and vice-versa. For example, the XML document:

<getValuesReturn return="true"> <attribute attrValue="value"/> <String>First item</String> <String>Second item</String> <String>Third item</String> <TextTag>Text!</TextTag> <EmptyTag/> <TagWithAttrs attr1="value1" attr2="value2" attr3="value3"/> <TagWithAttrsAndText attr1="value1" attr2="value2" attr3="value3">Text!</TagWithAttrsAndText> </getValuesReturn>
in JSON (in non-compact form) becomes
{ "getValuesReturn" : { "return" : "true", "TextTag" : "Text!", "String" : [ "First item", "Second item", "Third item" ], "TagWithAttrsAndText" : { "content" : "Text!", "attr3" : "value3", "attr2" : "value2", "attr1" : "value1" } , "EmptyTag" : true, "attribute" : { "attrValue" : "value" } , "TagWithAttrs" : { "attr3" : "value3", "attr2" : "value2", "attr1" : "value1" } } }

Constructor Summary

XML()

Method Summary

static String	toJson(File xmlFile) Method to take an XML file and return a String of the JSON format.
static String	toJson(File xmlFile, boolean verbose) Method to take an XML file and return a String of the JSON format.
static String	toJson(InputStream xmlStream) Method to take an input stream to an XML document and return a String of the JSON format.
static String	toJson(InputStream xmlStream, boolean verbose) Method to take an input stream to an XML document and return a String of the JSON format.
static void	toJson(InputStream XMLStream, OutputStream JSONStream) Method to do the transform from an XML input stream to a JSON stream.
static void	toJson(InputStream XMLStream, OutputStream JSONStream, boolean verbose) Method to do the transform from an XML input stream to a JSON stream.
static String	toXml(File jsonFile) Method to take an JSON file and return a String of the XML format.
static String	toXml(File jsonFile, boolean verbose) Method to take a JSON file and return a String of the XML format.
static String	toXml(InputStream JSONStream) Method to take an input stream to an JSON document and return a String of the XML format.
static String	toXml(InputStream JSONStream, boolean verbose) Method to take an input stream to an JSON document and return a String of the XML format.
static void	toXml(InputStream JSONStream, OutputStream XMLStream) Method to do the transform from an JSON input stream to a XML stream.
static void	toXml(InputStream JSONStream, OutputStream XMLStream, boolean verbose) Method to do the transform from an JSON input stream to a XML stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

XML

public XML()

Method Detail

toJson

public static void toJson(InputStream XMLStream,
                          OutputStream JSONStream)
                   throws SAXException,
                          IOException

Method to do the transform from an XML input stream to a JSON stream. Neither input nor output streams are closed. Closure is left up to the caller. Same as calling toJson(inStream, outStream, false); (Default is compact form)

Parameters:

XMLStream - The XML stream to convert to JSON

JSONStream - The stream to write out JSON to. The contents written to this stream are always in UTF-8 format.

Throws:

SAXException - Thrown is a parse error occurs.

IOException - Thrown if an IO error occurs.

toJson

public static void toJson(InputStream XMLStream,
                          OutputStream JSONStream,
                          boolean verbose)
                   throws SAXException,
                          IOException

Method to do the transform from an XML input stream to a JSON stream. Neither input nor output streams are closed. Closure is left up to the caller.

Parameters:

XMLStream - The XML stream to convert to JSON

JSONStream - The stream to write out JSON to. The contents written to this stream are always in UTF-8 format.

verbose - Flag to denote whether or not to render the JSON text in verbose (indented easy to read), or compact (not so easy to read, but smaller), format.

Throws:

SAXException - Thrown if a parse error occurs.

IOException - Thrown if an IO error occurs.

toJson

public static String toJson(InputStream xmlStream)
                     throws SAXException,
                            IOException

Method to take an input stream to an XML document and return a String of the JSON format. Note that the xmlStream is not closed when read is complete. This is left up to the caller, who may wish to do more with it. This is the same as toJson(xmlStream,false)

Parameters:

xmlStream - The InputStream to an XML document to transform to JSON.

Returns:

A string of the JSON representation of the XML file

Throws:

SAXException - Thrown if an error occurs during parse.

IOException - Thrown if an IOError occurs.

toJson

public static String toJson(InputStream xmlStream,
                            boolean verbose)
                     throws SAXException,
                            IOException

Method to take an input stream to an XML document and return a String of the JSON format. Note that the xmlStream is not closed when read is complete. This is left up to the caller, who may wish to do more with it.

Parameters:

xmlStream - The InputStream to an XML document to transform to JSON.

verbose - Boolean flag denoting whther or not to write the JSON in verbose (formatted), or compact form (no whitespace)

Returns:

A string of the JSON representation of the XML file

Throws:

SAXException - Thrown if an error occurs during parse.

IOException - Thrown if an IOError occurs.

toJson

public static String toJson(File xmlFile,
                            boolean verbose)
                     throws SAXException,
                            IOException

Method to take an XML file and return a String of the JSON format.

Parameters:

xmlFile - The XML file to transform to JSON.

verbose - Boolean flag denoting whther or not to write the JSON in verbose (formatted), or compact form (no whitespace)

Returns:

A string of the JSON representation of the XML file

Throws:

SAXException - Thrown if an error occurs during parse.

IOException - Thrown if an IOError occurs.

toJson

public static String toJson(File xmlFile)
                     throws SAXException,
                            IOException

Method to take an XML file and return a String of the JSON format. This is the same as toJson(xmlStream,false)

Parameters:

xmlFile - The XML file to convert to JSON.

Returns:

A string of the JSON representation of the XML file

Throws:

SAXException - Thrown if an error occurs during parse.

IOException - Thrown if an IOError occurs.

toXml

public static void toXml(InputStream JSONStream,
                         OutputStream XMLStream)
                  throws IOException

Method to do the transform from an JSON input stream to a XML stream. Neither input nor output streams are closed. Closure is left up to the caller. Same as calling toXml(inStream, outStream, false); (Default is compact form)

Parameters:

JSONStream - The JSON stream to convert to XML

XMLStream - The stream to write out XML to. The contents written to this stream are always in UTF-8 format.

Throws:

IOException - Thrown if an IO error occurs.

toXml

public static void toXml(InputStream JSONStream,
                         OutputStream XMLStream,
                         boolean verbose)
                  throws IOException

Method to do the transform from an JSON input stream to a XML stream. Neither input nor output streams are closed. Closure is left up to the caller.

Parameters:

JSONStream - The XML stream to convert to JSON

XMLStream - The stream to write out JSON to. The contents written to this stream are always in UTF-8 format.

verbose - Flag to denote whether or not to render the XML text in verbose (indented easy to read), or compact (not so easy to read, but smaller), format.

Throws:

IOException - Thrown if an IO error occurs.

toXml

public static String toXml(InputStream JSONStream)
                    throws IOException

Method to take an input stream to an JSON document and return a String of the XML format. Note that the JSONStream is not closed when read is complete. This is left up to the caller, who may wish to do more with it. This is the same as toXml(JSONStream,false)

Parameters:

JSONStream - The InputStream to an JSON document to transform to XML.

Returns:

A string of the JSON representation of the XML file

Throws:

IOException - Thrown if an IOError occurs.

toXml

public static String toXml(InputStream JSONStream,
                           boolean verbose)
                    throws IOException

Method to take an input stream to an JSON document and return a String of the XML format. Note that the JSONStream is not closed when read is complete. This is left up to the caller, who may wish to do more with it.

Parameters:

xmlStream - The InputStream to an JSON document to transform to XML.

verbose - Boolean flag denoting whther or not to write the XML in verbose (formatted), or compact form (no whitespace)

Returns:

A string of the JSON representation of the XML file

Throws:

IOException - Thrown if an IOError occurs.

toXml

public static String toXml(File jsonFile,
                           boolean verbose)
                    throws IOException

Method to take a JSON file and return a String of the XML format.

Parameters:

xmlFile - The JSON file to transform to XML.

verbose - Boolean flag denoting whther or not to write the XML in verbose (formatted), or compact form (no whitespace)

Returns:

A string of the XML representation of the JSON file

Throws:

IOException - Thrown if an IOError occurs.

toXml

public static String toXml(File jsonFile)
                    throws IOException

Method to take an JSON file and return a String of the XML format. This is the same as toXml(jsonStream,false)

Parameters:

jsonFile - The XML file to convert to XML.

Returns:

A string of the XML representation of the JSON file

Throws:

IOException - Thrown if an IOError occurs.