org.restlet.ext.jackson

Class JacksonRepresentation<T>

java.lang.Object

org.restlet.representation.Variant

org.restlet.representation.RepresentationInfo

org.restlet.representation.Representation

org.restlet.representation.StreamRepresentation

org.restlet.representation.OutputRepresentation

org.restlet.ext.jackson.JacksonRepresentation<T>

Type Parameters:

T - The type to wrap.

public class JacksonRepresentation<T>
extends OutputRepresentation

Representation based on the Jackson library. It can serialize and deserialize automatically in JSON, JSON binary (Smile), XML, YAML and CSV.

SECURITY WARNING: Using XML parsers configured to not prevent nor limit document type definition (DTD) entity resolution can expose the parser to an XML Entity Expansion injection attack.

Author:

Jerome Louvel

See Also:

Jackson project, XML Entity Expansion injection attack

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	XML_EXPANDING_ENTITY_REFS True for expanding entity references when parsing XML representations.
static boolean	XML_VALIDATING_DTD True for validating DTD documents when parsing XML representations.

Fields inherited from class org.restlet.representation.Representation

UNKNOWN_SIZE

Constructor Summary

Constructors

Constructor and Description
JacksonRepresentation(MediaType mediaType, T object) Constructor.
JacksonRepresentation(Representation representation, Class<T> objectClass) Constructor.
JacksonRepresentation(T object) Constructor for the JSON media type.

Method Summary

Methods

Modifier and Type	Method and Description
protected com.fasterxml.jackson.dataformat.csv.CsvSchema	createCsvSchema(com.fasterxml.jackson.dataformat.csv.CsvMapper csvMapper) Creates a Jackson CSV schema based on a mapper and the current object class.
protected com.fasterxml.jackson.databind.ObjectMapper	createObjectMapper() Creates a Jackson object mapper based on a media type.
protected com.fasterxml.jackson.databind.ObjectReader	createObjectReader() Creates a Jackson object reader based on a mapper.
protected com.fasterxml.jackson.databind.ObjectWriter	createObjectWriter() Creates a Jackson object writer based on a mapper.
com.fasterxml.jackson.dataformat.csv.CsvSchema	getCsvSchema() Returns the modifiable Jackson CSV schema.
T	getObject() Returns the wrapped object, deserializing the representation with Jackson if necessary.
Class<T>	getObjectClass() Returns the object class to instantiate.
com.fasterxml.jackson.databind.ObjectMapper	getObjectMapper() Returns the modifiable Jackson object mapper.
com.fasterxml.jackson.databind.ObjectReader	getObjectReader() Returns the modifiable Jackson object reader.
com.fasterxml.jackson.databind.ObjectWriter	getObjectWriter() Returns the modifiable Jackson object writer.
boolean	isExpandingEntityRefs() Indicates if the parser will expand entity reference nodes.
boolean	isValidatingDtd() Indicates the desire for validating this type of XML representations against an XML schema if one is referenced within the contents.
void	setCsvSchema(com.fasterxml.jackson.dataformat.csv.CsvSchema csvSchema) Sets the Jackson CSV schema.
void	setExpandingEntityRefs(boolean expandEntityRefs) Indicates if the parser will expand entity reference nodes.
void	setObject(T object) Sets the object to format.
void	setObjectClass(Class<T> objectClass) Sets the object class to instantiate.
void	setObjectMapper(com.fasterxml.jackson.databind.ObjectMapper objectMapper) Sets the Jackson object mapper.
void	setObjectReader(com.fasterxml.jackson.databind.ObjectReader objectReader) Sets the Jackson object reader.
void	setObjectWriter(com.fasterxml.jackson.databind.ObjectWriter objectWriter) Sets the Jackson object writer.
void	setValidatingDtd(boolean validating) Indicates the desire for validating this type of XML representations against an XML schema if one is referenced within the contents.
void	write(OutputStream outputStream)

Methods inherited from class org.restlet.representation.OutputRepresentation

getChannel, getStream

Methods inherited from class org.restlet.representation.StreamRepresentation

getReader, write, write

Methods inherited from class org.restlet.representation.Representation

append, exhaust, getAvailableSize, getDigest, getDisposition, getExpirationDate, getRange, getRegistration, getSize, getText, hasKnownSize, isAvailable, isEmpty, isSelectable, isTransient, release, setAvailable, setDigest, setDisposition, setExpirationDate, setListener, setRange, setSize, setTransient

Methods inherited from class org.restlet.representation.RepresentationInfo

getModificationDate, getTag, setModificationDate, setTag

Methods inherited from class org.restlet.representation.Variant

createClientInfo, equals, getCharacterSet, getEncodings, getLanguages, getLocationRef, getMediaType, includes, isCompatible, setCharacterSet, setEncodings, setLanguages, setLocationRef, setLocationRef, setMediaType, toString

Methods inherited from class java.lang.Object

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

Field Detail

XML_EXPANDING_ENTITY_REFS

public static boolean XML_EXPANDING_ENTITY_REFS

True for expanding entity references when parsing XML representations. Default value provided by system property "org.restlet.ext.xml.expandingEntityRefs", false by default.

XML_VALIDATING_DTD

public static boolean XML_VALIDATING_DTD

True for validating DTD documents when parsing XML representations. Default value provided by system property "org.restlet.ext.xml.validatingDtd", false by default.

Constructor Detail

JacksonRepresentation

public JacksonRepresentation(MediaType mediaType,
                     T object)

Constructor.

Parameters:

mediaType - The target media type.

object - The object to format.

JacksonRepresentation

public JacksonRepresentation(Representation representation,
                     Class<T> objectClass)

Constructor.

Parameters:

representation - The representation to parse.

objectClass - The object class to instantiate.

JacksonRepresentation

public JacksonRepresentation(T object)

Constructor for the JSON media type.

Parameters:

object - The object to format.

Method Detail

createCsvSchema

protected com.fasterxml.jackson.dataformat.csv.CsvSchema createCsvSchema(com.fasterxml.jackson.dataformat.csv.CsvMapper csvMapper)

Creates a Jackson CSV schema based on a mapper and the current object class.

Parameters:

csvMapper - The source CSV mapper.

Returns:

A Jackson CSV schema

createObjectMapper

protected com.fasterxml.jackson.databind.ObjectMapper createObjectMapper()

Creates a Jackson object mapper based on a media type. It supports JSON, JSON Smile, XML, YAML and CSV.

Returns:

The Jackson object mapper.

createObjectReader

protected com.fasterxml.jackson.databind.ObjectReader createObjectReader()

Creates a Jackson object reader based on a mapper. Has a special handling for CSV media types.

Returns:

The Jackson object reader.

createObjectWriter

protected com.fasterxml.jackson.databind.ObjectWriter createObjectWriter()

Creates a Jackson object writer based on a mapper. Has a special handling for CSV media types.

Returns:

The Jackson object writer.

getCsvSchema

public com.fasterxml.jackson.dataformat.csv.CsvSchema getCsvSchema()

Returns the modifiable Jackson CSV schema.

Returns:

The modifiable Jackson CSV schema.

getObject

public T getObject()
            throws IOException

Returns the wrapped object, deserializing the representation with Jackson if necessary.

Returns:

The wrapped object.

Throws:

IOException

getObjectClass

public Class<T> getObjectClass()

Returns the object class to instantiate.

Returns:

The object class to instantiate.

getObjectMapper

public com.fasterxml.jackson.databind.ObjectMapper getObjectMapper()

Returns the modifiable Jackson object mapper. Useful to customize mappings.

Returns:

The modifiable Jackson object mapper.

getObjectReader

public com.fasterxml.jackson.databind.ObjectReader getObjectReader()

Returns the modifiable Jackson object reader. Useful to customize deserialization.

Returns:

The modifiable Jackson object reader.

getObjectWriter

public com.fasterxml.jackson.databind.ObjectWriter getObjectWriter()

Returns the modifiable Jackson object writer. Useful to customize serialization.

Returns:

The modifiable Jackson object writer.

isExpandingEntityRefs

public boolean isExpandingEntityRefs()

Indicates if the parser will expand entity reference nodes. By default the value of this is set to true.

Returns:

True if the parser will expand entity reference nodes.

isValidatingDtd

public boolean isValidatingDtd()

Indicates the desire for validating this type of XML representations against an XML schema if one is referenced within the contents.

Returns:

True if the schema-based validation is enabled.

setCsvSchema

public void setCsvSchema(com.fasterxml.jackson.dataformat.csv.CsvSchema csvSchema)

Sets the Jackson CSV schema.

Parameters:

csvSchema - The Jackson CSV schema.

setExpandingEntityRefs

public void setExpandingEntityRefs(boolean expandEntityRefs)

Indicates if the parser will expand entity reference nodes. By default the value of this is set to true.

Parameters:

expandEntityRefs - True if the parser will expand entity reference nodes.

setObject

public void setObject(T object)

Sets the object to format.

Parameters:

object - The object to format.

setObjectClass

public void setObjectClass(Class<T> objectClass)

Sets the object class to instantiate.

Parameters:

objectClass - The object class to instantiate.

setObjectMapper

public void setObjectMapper(com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Sets the Jackson object mapper.

Parameters:

objectMapper - The Jackson object mapper.

setObjectReader

public void setObjectReader(com.fasterxml.jackson.databind.ObjectReader objectReader)

Sets the Jackson object reader.

Parameters:

objectReader - The Jackson object reader.

setObjectWriter

public void setObjectWriter(com.fasterxml.jackson.databind.ObjectWriter objectWriter)

Sets the Jackson object writer.

Parameters:

objectWriter - The Jackson object writer.

setValidatingDtd

public void setValidatingDtd(boolean validating)

Indicates the desire for validating this type of XML representations against an XML schema if one is referenced within the contents.

Parameters:

validating - The new validation flag to set.

write

public void write(OutputStream outputStream)
           throws IOException

Specified by:

write in class Representation

Throws:

IOException