Package org.glassfish.jersey.jaxb.internal

Class AbstractCollectionJaxbProvider

java.lang.Object

org.glassfish.jersey.message.internal.AbstractMessageReaderWriterProvider<T>

org.glassfish.jersey.jaxb.internal.AbstractJaxbProvider<Object>

org.glassfish.jersey.jaxb.internal.AbstractCollectionJaxbProvider

All Implemented Interfaces:

MessageBodyReader<Object>, MessageBodyWriter<Object>

Direct Known Subclasses:

XmlCollectionJaxbProvider

public abstract class AbstractCollectionJaxbProvider
extends AbstractJaxbProvider<Object>

An abstract provider for T[], Collection<T>, and its subtypes as long as they have the public default constructor or are interfaces implemented by one the following classes:

• ArrayList
• LinkedList
• HashSet
• TreeSet
• Stack

T must be a JAXB type annotated with XmlRootElement.

Implementing classes may extend this class to provide specific marshalling and unmarshalling behaviour.

When unmarshalling a UnmarshalException will result in a WebApplicationException being thrown with a status of 400 (Client error), and a JAXBException will result in a WebApplicationException being thrown with a status of 500 (Internal Server error).

When marshalling a JAXBException will result in a WebApplicationException being thrown with a status of 500 (Internal Server error).

Author:

Paul Sandoz, Martin Matula

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	AbstractCollectionJaxbProvider.JaxbTypeChecker	This is to allow customized JAXB collections checking.

Field Summary

Fields inherited from class org.glassfish.jersey.message.internal.AbstractMessageReaderWriterProvider

UTF8

Constructor Summary

Constructors

Constructor	Description
AbstractCollectionJaxbProvider(Providers ps)
AbstractCollectionJaxbProvider(Providers ps, MediaType mt)

Method Summary

Modifier and Type	Method	Description
protected static Class	getElementClass(Class<?> type, Type genericType)
protected static String	getElementName(Class<?> elementType)	Get the element name for a given Java type.
protected String	getRootElementName(Class<?> elementType)	Construct the name of the root element from it's Java type name.
protected abstract XMLStreamReader	getXMLStreamReader(Class<?> elementType, MediaType mediaType, jakarta.xml.bind.Unmarshaller unmarshaller, InputStream entityStream)	Get the XMLStreamReader for unmarshalling.
boolean	isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType)
boolean	isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType)
Object	readFrom(Class<Object> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String,String> httpHeaders, InputStream inputStream)
static boolean	verifyArrayType(Class type, AbstractCollectionJaxbProvider.JaxbTypeChecker checker)	The method could be used to check if given type is an array of JAXB beans.
static boolean	verifyCollectionSubclass(Class<?> type)
static boolean	verifyGenericType(Type genericType, AbstractCollectionJaxbProvider.JaxbTypeChecker checker)	The method could be used to check if given type is a collection of JAXB beans.
abstract void	writeCollection(Class<?> elementType, Collection<?> t, MediaType mediaType, Charset c, jakarta.xml.bind.Marshaller m, OutputStream entityStream)	Write a collection of JAXB objects as child elements of the root element.
void	writeTo(Object t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String,Object> httpHeaders, OutputStream entityStream)

Methods inherited from class org.glassfish.jersey.jaxb.internal.AbstractJaxbProvider

getMarshaller, getSAXSource, getStoredJaxbContext, getUnmarshaller, isFormattedOutput, isSupported, isXmlRootElementProcessing, setConfiguration, setHeader

Methods inherited from class org.glassfish.jersey.message.internal.AbstractMessageReaderWriterProvider

getCharset, getSize, readFromAsString, writeTo, writeTo, writeToAsString

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractCollectionJaxbProvider

public AbstractCollectionJaxbProvider(Providers ps)

AbstractCollectionJaxbProvider

public AbstractCollectionJaxbProvider(Providers ps,
                                      MediaType mt)

Method Detail

isReadable

public boolean isReadable(Class<?> type,
                          Type genericType,
                          Annotation[] annotations,
                          MediaType mediaType)

isWriteable

public boolean isWriteable(Class<?> type,
                           Type genericType,
                           Annotation[] annotations,
                           MediaType mediaType)

verifyCollectionSubclass

public static boolean verifyCollectionSubclass(Class<?> type)

verifyArrayType

public static boolean verifyArrayType(Class type,
                                      AbstractCollectionJaxbProvider.JaxbTypeChecker checker)

The method could be used to check if given type is an array of JAXB beans. It allows customizing the "is this a JAXB bean?" part.

Parameters:

type - the array to be checked

checker - allows JAXB bean check customization

Returns:

true if given type is an array of JAXB beans

verifyGenericType

public static boolean verifyGenericType(Type genericType,
                                        AbstractCollectionJaxbProvider.JaxbTypeChecker checker)

The method could be used to check if given type is a collection of JAXB beans. It allows customizing the "is this a JAXB bean?" part.

Parameters:

genericType - the type to be checked

checker - allows JAXB bean check customization

Returns:

true if given type is a collection of JAXB beans

writeTo

public final void writeTo(Object t,
                          Class<?> type,
                          Type genericType,
                          Annotation[] annotations,
                          MediaType mediaType,
                          MultivaluedMap<String,Object> httpHeaders,
                          OutputStream entityStream)
                   throws IOException

Throws:

IOException

writeCollection

public abstract void writeCollection(Class<?> elementType,
                                     Collection<?> t,
                                     MediaType mediaType,
                                     Charset c,
                                     jakarta.xml.bind.Marshaller m,
                                     OutputStream entityStream)
                              throws jakarta.xml.bind.JAXBException,
                                     IOException

Write a collection of JAXB objects as child elements of the root element.

Parameters:

elementType - the element type in the collection.

t - the collection to marshall

mediaType - the media type

c - the charset

m - the marshaller

entityStream - the output stream to marshall the collection

Throws:

jakarta.xml.bind.JAXBException - in case the marshalling of element collection fails.

IOException - in case of any other I/O error while marshalling the collection of JAXB objects.

readFrom

public final Object readFrom(Class<Object> type,
                             Type genericType,
                             Annotation[] annotations,
                             MediaType mediaType,
                             MultivaluedMap<String,String> httpHeaders,
                             InputStream inputStream)
                      throws IOException

Throws:

IOException

getXMLStreamReader

protected abstract XMLStreamReader getXMLStreamReader(Class<?> elementType,
                                                      MediaType mediaType,
                                                      jakarta.xml.bind.Unmarshaller unmarshaller,
                                                      InputStream entityStream)
                                               throws XMLStreamException

Get the XMLStreamReader for unmarshalling.

Parameters:

elementType - the individual element type.

mediaType - the media type.

unmarshaller - the unmarshaller as a carrier of possible config options.

entityStream - the input stream.

Returns:

the XMLStreamReader.

Throws:

XMLStreamException - in case XMLStreamReader retrieval fails.

getElementClass

protected static Class getElementClass(Class<?> type,
                                       Type genericType)

getRootElementName

protected final String getRootElementName(Class<?> elementType)

Construct the name of the root element from it's Java type name.

Parameters:

elementType - element Java type.

Returns:

constructed root element name for a given element Java type.

getElementName

protected static String getElementName(Class<?> elementType)

Get the element name for a given Java type.

In case the element is annotated with a XmlRootElement annotation and the specified element name is not default, the method returns the specified element name in the annotation. Otherwise, the method returns the name of the element class instead.

Parameters:

elementType - element Java type.

Returns:

element name for a given element Java type.