Class JsonUtilImpl

java.lang.Object

com.bazaarvoice.jolt.JsonUtilImpl

All Implemented Interfaces:

JsonUtil

public class JsonUtilImpl
extends Object
implements JsonUtil

Implementation of JsonUtil that allows the user to provide a configured Jackson ObjectMapper. All IOExceptions are caught, wrapped with context, and rethrown as RuntimeExceptions.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_ENCODING_UTF_8
private static final com.fasterxml.jackson.core.type.TypeReference<List<Object>>	listTypeReference
private static final com.fasterxml.jackson.core.type.TypeReference<Map<String,Object>>	mapTypeReference
private final com.fasterxml.jackson.databind.ObjectMapper	objectMapper
private final com.fasterxml.jackson.databind.ObjectWriter	prettyPrintWriter

Constructor Summary

Constructors

Constructor	Description
JsonUtilImpl()
JsonUtilImpl(com.fasterxml.jackson.databind.ObjectMapper objectMapper)	By allowing the user to provide an ObjectMapper, it can be configured with knowledge of how to marshall and un-marshall your domain objects.

Method Summary

Modifier and Type	Method	Description
List<Object>	classpathToList(String classPath)
Map<String,Object>	classpathToMap(String classPath)
Object	classpathToObject(String classPath)
<T> T	classpathToType(String classPath, com.fasterxml.jackson.core.type.TypeReference<T> typeRef)
<T> T	classpathToType(String classPath, Class<T> aClass)
Object	cloneJson(Object obj)	Makes a deep copy of a Mapinvalid input: '<'String, Object> object by converting it to a String and then back onto stock JSON objects.
static void	configureStockJoltObjectMapper(com.fasterxml.jackson.databind.ObjectMapper objectMapper)
List<Object>	filepathToList(String filePath)
Map<String,Object>	filepathToMap(String filePath)
Object	filepathToObject(String filePath)
<T> T	fileToType(String filePath, com.fasterxml.jackson.core.type.TypeReference<T> typeRef)
<T> T	fileToType(String filePath, Class<T> aClass)
<T> T	jsonTo(InputStream in, com.fasterxml.jackson.core.type.TypeReference<T> typeRef)	Deprecated.
<T> T	jsonTo(String json, com.fasterxml.jackson.core.type.TypeReference<T> typeRef)	Deprecated.
List<Object>	jsonToList(InputStream in)
List<Object>	jsonToList(String json)
List<Object>	jsonToList(String json, String charset)
Map<String,Object>	jsonToMap(InputStream in)
Map<String,Object>	jsonToMap(String json)
Map<String,Object>	jsonToMap(String json, String charset)
Object	jsonToObject(InputStream in)
Object	jsonToObject(String json)
Object	jsonToObject(String json, String charset)
<T> T	streamToType(InputStream in, com.fasterxml.jackson.core.type.TypeReference<T> typeRef)
<T> T	streamToType(InputStream in, Class<T> aClass)
<T> T	stringToType(String json, com.fasterxml.jackson.core.type.TypeReference<T> typeRef)
<T> T	stringToType(String json, Class<T> aClass)
String	toJsonString(Object obj)
String	toPrettyJsonString(Object obj)

Methods inherited from class Object

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

Field Details

objectMapper

private final com.fasterxml.jackson.databind.ObjectMapper objectMapper

prettyPrintWriter

private final com.fasterxml.jackson.databind.ObjectWriter prettyPrintWriter

DEFAULT_ENCODING_UTF_8

public static final String DEFAULT_ENCODING_UTF_8

See Also:

• Constant Field Values

mapTypeReference

private static final com.fasterxml.jackson.core.type.TypeReference<Map<String,Object>> mapTypeReference

listTypeReference

private static final com.fasterxml.jackson.core.type.TypeReference<List<Object>> listTypeReference

Constructor Details

JsonUtilImpl

public JsonUtilImpl(com.fasterxml.jackson.databind.ObjectMapper objectMapper)

By allowing the user to provide an ObjectMapper, it can be configured with knowledge of how to marshall and un-marshall your domain objects.

Parameters:

objectMapper - a configured Jackson ObjectMapper

JsonUtilImpl

public JsonUtilImpl()

Method Details

configureStockJoltObjectMapper

public static void configureStockJoltObjectMapper(com.fasterxml.jackson.databind.ObjectMapper objectMapper)

jsonToObject

public Object jsonToObject(String json)

Specified by:

jsonToObject in interface JsonUtil

jsonToObject

public Object jsonToObject(String json,
 String charset)

Specified by:

jsonToObject in interface JsonUtil

jsonToObject

public Object jsonToObject(InputStream in)

Specified by:

jsonToObject in interface JsonUtil

jsonToMap

public Map<String,Object> jsonToMap(String json)

Specified by:

jsonToMap in interface JsonUtil

jsonToMap

public Map<String,Object> jsonToMap(String json,
 String charset)

Specified by:

jsonToMap in interface JsonUtil

jsonToMap

public Map<String,Object> jsonToMap(InputStream in)

Specified by:

jsonToMap in interface JsonUtil

jsonToList

public List<Object> jsonToList(String json)

Specified by:

jsonToList in interface JsonUtil

jsonToList

public List<Object> jsonToList(String json,
 String charset)

Specified by:

jsonToList in interface JsonUtil

jsonToList

public List<Object> jsonToList(InputStream in)

Specified by:

jsonToList in interface JsonUtil

filepathToObject

public Object filepathToObject(String filePath)

Specified by:

filepathToObject in interface JsonUtil

filepathToMap

public Map<String,Object> filepathToMap(String filePath)

Specified by:

filepathToMap in interface JsonUtil

filepathToList

public List<Object> filepathToList(String filePath)

Specified by:

filepathToList in interface JsonUtil

classpathToObject

public Object classpathToObject(String classPath)

Specified by:

classpathToObject in interface JsonUtil

classpathToMap

public Map<String,Object> classpathToMap(String classPath)

Specified by:

classpathToMap in interface JsonUtil

classpathToList

public List<Object> classpathToList(String classPath)

Specified by:

classpathToList in interface JsonUtil

jsonTo

@Deprecated
public <T> T jsonTo(InputStream in,
 com.fasterxml.jackson.core.type.TypeReference<T> typeRef)

Deprecated.

Description copied from interface: JsonUtil

Use the streamToType method instead.

Specified by:

jsonTo in interface JsonUtil

jsonTo

@Deprecated
public <T> T jsonTo(String json,
 com.fasterxml.jackson.core.type.TypeReference<T> typeRef)

Deprecated.

Description copied from interface: JsonUtil

Use the stringToType method instead.

Specified by:

jsonTo in interface JsonUtil

stringToType

public <T> T stringToType(String json,
 com.fasterxml.jackson.core.type.TypeReference<T> typeRef)

Specified by:

stringToType in interface JsonUtil

stringToType

public <T> T stringToType(String json,
 Class<T> aClass)

Specified by:

stringToType in interface JsonUtil

classpathToType

public <T> T classpathToType(String classPath,
 com.fasterxml.jackson.core.type.TypeReference<T> typeRef)

Specified by:

classpathToType in interface JsonUtil

classpathToType

public <T> T classpathToType(String classPath,
 Class<T> aClass)

Specified by:

classpathToType in interface JsonUtil

fileToType

public <T> T fileToType(String filePath,
 com.fasterxml.jackson.core.type.TypeReference<T> typeRef)

Specified by:

fileToType in interface JsonUtil

fileToType

public <T> T fileToType(String filePath,
 Class<T> aClass)

Specified by:

fileToType in interface JsonUtil

streamToType

public <T> T streamToType(InputStream in,
 com.fasterxml.jackson.core.type.TypeReference<T> typeRef)

Specified by:

streamToType in interface JsonUtil

streamToType

public <T> T streamToType(InputStream in,
 Class<T> aClass)

Specified by:

streamToType in interface JsonUtil

toJsonString

public String toJsonString(Object obj)

Specified by:

toJsonString in interface JsonUtil

toPrettyJsonString

public String toPrettyJsonString(Object obj)

Specified by:

toPrettyJsonString in interface JsonUtil

cloneJson

public Object cloneJson(Object obj)

Description copied from interface: JsonUtil

Makes a deep copy of a Mapinvalid input: '<'String, Object> object by converting it to a String and then back onto stock JSON objects. Leverages Serialization

Specified by:

cloneJson in interface JsonUtil

Parameters:

obj - object tree to copy

Returns:

deep copy of the incoming obj