org.stefaniuk.json.service

Class JsonServiceUtil

java.lang.Object

org.stefaniuk.json.service.JsonServiceUtil

public class JsonServiceUtil
extends Object

JSON service utility methods.

Since:

2010/09/20

Version:

1.0.0

Author:

Daniel Stefaniuk

Constructor Summary

Constructors

Constructor and Description
JsonServiceUtil()

Method Summary

Modifier and Type	Method and Description
static <T> Object	fromJson(FileReader fr, Class<T> pojoClass) Creates Java POJO object from JSON string.
static <T> Object	fromJson(String jsonAsString, Class<T> pojoClass) Creates Java POJO object from JSON string.
protected static org.codehaus.jackson.node.ObjectNode	getJsonServiceErrorNode(JsonServiceError jse)
protected static org.codehaus.jackson.node.ObjectNode	getJsonServiceErrorNode(JsonServiceError jse, int id)
static org.springframework.http.ResponseEntity<String>	getResponseEntityForMethodCall(BufferedOutputStream bos) This method sets HTTP response headers adequate for JSON-RPC method call and returns ResponseEntity to be used by Spring Framework.
static org.springframework.http.ResponseEntity<String>	getResponseEntityForMethodCall(BufferedOutputStream bos, org.springframework.http.HttpStatus status) This method sets HTTP response headers adequate for JSON-RPC method call and returns ResponseEntity to be used by Spring Framework.
static org.springframework.http.ResponseEntity<String>	getResponseEntityForServiceMap(BufferedOutputStream bos) This method sets HTTP response headers adequate for Service Mapping Description and returns ResponseEntity to be used by Spring Framework.
static org.springframework.http.ResponseEntity<String>	handle(JsonServiceRegistry service, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, Class<?> clazz) Handles HTTP request.
static org.springframework.http.ResponseEntity<String>	handle(JsonServiceRegistry service, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, Object obj) Handles HTTP request.
static void	setHeadersForMethodCall(BufferedOutputStream bos, javax.servlet.http.HttpServletResponse response) This method sets HTTP response headers adequate for JSON-RPC method call.
static void	setHeadersForMethodCall(BufferedOutputStream bos, javax.servlet.http.HttpServletResponse response, int status) This method sets HTTP response headers adequate for JSON-RPC method call.
static void	setHeadersForServiceMap(BufferedOutputStream bos, javax.servlet.http.HttpServletResponse response) This method sets HTTP response headers adequate for Service Mapping Description.
static org.codehaus.jackson.node.ArrayNode	toJson(List<?> list) Converts a list to JSON array.
static org.codehaus.jackson.node.ObjectNode	toJson(Map<?,?> map) Converts a map to JSON object.
static String	toJson(Object pojo, boolean prettyPrint) Serialises Java POJO object to JSON string.
static void	toJson(Object pojo, FileWriter fw, boolean prettyPrint) Serialises Java POJO object to JSON string.

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonServiceUtil

public JsonServiceUtil()

Method Detail

setHeadersForServiceMap

public static void setHeadersForServiceMap(BufferedOutputStream bos,
                                           javax.servlet.http.HttpServletResponse response)

This method sets HTTP response headers adequate for Service Mapping Description.

Parameters:

bos - Output stream

response - HTTP response object

setHeadersForMethodCall

public static void setHeadersForMethodCall(BufferedOutputStream bos,
                                           javax.servlet.http.HttpServletResponse response)

This method sets HTTP response headers adequate for JSON-RPC method call.

Parameters:

bos - Output stream

response - HTTP response object

setHeadersForMethodCall

public static void setHeadersForMethodCall(BufferedOutputStream bos,
                                           javax.servlet.http.HttpServletResponse response,
                                           int status)

This method sets HTTP response headers adequate for JSON-RPC method call.

Parameters:

bos - Output stream

response - HTTP response object

status - HTTP response code

getResponseEntityForServiceMap

public static org.springframework.http.ResponseEntity<String> getResponseEntityForServiceMap(BufferedOutputStream bos)

This method sets HTTP response headers adequate for Service Mapping Description and returns ResponseEntity to be used by Spring Framework.

Parameters:

bos - Output stream

Returns:

Returns ResponseEntity to be used by Spring Framework.

getResponseEntityForMethodCall

public static org.springframework.http.ResponseEntity<String> getResponseEntityForMethodCall(BufferedOutputStream bos)

This method sets HTTP response headers adequate for JSON-RPC method call and returns ResponseEntity to be used by Spring Framework.

Parameters:

bos - Output stream

Returns:

Returns ResponseEntity to be used by Spring Framework.

getResponseEntityForMethodCall

public static org.springframework.http.ResponseEntity<String> getResponseEntityForMethodCall(BufferedOutputStream bos,
                                                                                             org.springframework.http.HttpStatus status)

This method sets HTTP response headers adequate for JSON-RPC method call and returns ResponseEntity to be used by Spring Framework.

Parameters:

bos - Output stream

status - HTTP response code

Returns:

Returns ResponseEntity to be used by Spring Framework.

handle

public static org.springframework.http.ResponseEntity<String> handle(JsonServiceRegistry service,
                                                                     javax.servlet.http.HttpServletRequest request,
                                                                     javax.servlet.http.HttpServletResponse response,
                                                                     Class<?> clazz)
                                                              throws IOException

Handles HTTP request.

Parameters:

service - Service registry object

request - HTTP request object

response - HTTP response object

clazz - Class

Returns:

Returns ResponseEntity to be used by Spring Framework.

Throws:

IOException

handle

public static org.springframework.http.ResponseEntity<String> handle(JsonServiceRegistry service,
                                                                     javax.servlet.http.HttpServletRequest request,
                                                                     javax.servlet.http.HttpServletResponse response,
                                                                     Object obj)
                                                              throws IOException

Handles HTTP request.

Parameters:

service - Service registry object

request - HTTP request object

response - HTTP response object

obj - Already instantiated object

Returns:

Returns ResponseEntity to be used by Spring Framework.

Throws:

IOException

fromJson

public static <T> Object fromJson(String jsonAsString,
                                  Class<T> pojoClass)
                           throws org.codehaus.jackson.map.JsonMappingException,
                                  org.codehaus.jackson.JsonParseException,
                                  IOException

Creates Java POJO object from JSON string.

Type Parameters:

T -

Parameters:

jsonAsString - JSON string

pojoClass - POJO class

Returns:

POJO object

Throws:

org.codehaus.jackson.map.JsonMappingException

org.codehaus.jackson.JsonParseException

IOException

fromJson

public static <T> Object fromJson(FileReader fr,
                                  Class<T> pojoClass)
                           throws org.codehaus.jackson.JsonParseException,
                                  IOException

Creates Java POJO object from JSON string.

Type Parameters:

T -

Parameters:

fr - File stream to read JSON string.

pojoClass - POJO class

Returns:

POJO object

Throws:

org.codehaus.jackson.JsonParseException

IOException

toJson

public static String toJson(Object pojo,
                            boolean prettyPrint)
                     throws org.codehaus.jackson.map.JsonMappingException,
                            org.codehaus.jackson.JsonGenerationException,
                            IOException

Serialises Java POJO object to JSON string.

Parameters:

pojo - POJO object

prettyPrint - JSON pretty print

Returns:

JSON string

Throws:

org.codehaus.jackson.map.JsonMappingException

org.codehaus.jackson.JsonGenerationException

IOException

toJson

public static void toJson(Object pojo,
                          FileWriter fw,
                          boolean prettyPrint)
                   throws org.codehaus.jackson.map.JsonMappingException,
                          org.codehaus.jackson.JsonGenerationException,
                          IOException

Serialises Java POJO object to JSON string.

Parameters:

pojo - POJO object

fw - File stream to write JSON string.

prettyPrint - JSON pretty print

Throws:

org.codehaus.jackson.map.JsonMappingException

org.codehaus.jackson.JsonGenerationException

IOException

toJson

public static org.codehaus.jackson.node.ArrayNode toJson(List<?> list)

Converts a list to JSON array.

Parameters:

list - List

Returns:

Returns JSON array.

toJson

public static org.codehaus.jackson.node.ObjectNode toJson(Map<?,?> map)

Converts a map to JSON object.

Parameters:

map - Map

Returns:

Returns JSON object.

getJsonServiceErrorNode

protected static org.codehaus.jackson.node.ObjectNode getJsonServiceErrorNode(JsonServiceError jse)

getJsonServiceErrorNode

protected static org.codehaus.jackson.node.ObjectNode getJsonServiceErrorNode(JsonServiceError jse,
                                                                              int id)