Package org.springframework.http.converter.xml

Class SourceHttpMessageConverter<T extends Source>

java.lang.Object

org.springframework.http.converter.AbstractHttpMessageConverter<T>

org.springframework.http.converter.xml.SourceHttpMessageConverter<T>

Type Parameters:

T - the converted object type

All Implemented Interfaces:

HttpMessageConverter<T>

public class SourceHttpMessageConverter<T extends Source>
extends AbstractHttpMessageConverter<T>

Implementation of HttpMessageConverter that can read and write Source objects.

Since:

3.0

Author:

Arjen Poutsma, Rossen Stoyanchev, Juergen Hoeller

Field Summary

Fields inherited from class org.springframework.http.converter.AbstractHttpMessageConverter

logger

Constructor Summary

Constructors

Constructor	Description
SourceHttpMessageConverter()	Sets the supportedMediaTypes to text/xml and application/xml, and application/*+xml.

Method Summary

Modifier and Type	Method	Description
protected Long	getContentLength(T t, MediaType contentType)	Returns the content length for the given type.
boolean	isProcessExternalEntities()	Return whether XML external entities are allowed.
boolean	isSupportDtd()	Return whether DTD parsing is supported.
protected T	readInternal(Class<? extends T> clazz, HttpInputMessage inputMessage)	Abstract template method that reads the actual object.
void	setProcessExternalEntities(boolean processExternalEntities)	Indicate whether external XML entities are processed when converting to a Source.
void	setSupportDtd(boolean supportDtd)	Indicate whether DTD parsing should be supported.
boolean	supports(Class<?> clazz)	Indicates whether the given class is supported by this converter.
protected boolean	supportsRepeatableWrites(T t)	Indicates whether this message converter can write the given object multiple times.
protected void	writeInternal(T t, HttpOutputMessage outputMessage)	Abstract template method that writes the actual body.

Methods inherited from class org.springframework.http.converter.AbstractHttpMessageConverter

addDefaultHeaders, canRead, canRead, canWrite, canWrite, getDefaultCharset, getDefaultContentType, getSupportedMediaTypes, read, setDefaultCharset, setSupportedMediaTypes, write

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.http.converter.HttpMessageConverter

getSupportedMediaTypes

Constructor Details

SourceHttpMessageConverter

public SourceHttpMessageConverter()

Sets the supportedMediaTypes to text/xml and application/xml, and application/*+xml.

Method Details

setSupportDtd

public void setSupportDtd(boolean supportDtd)

Indicate whether DTD parsing should be supported.

Default is false meaning that DTD is disabled.

isSupportDtd

public boolean isSupportDtd()

Return whether DTD parsing is supported.

setProcessExternalEntities

public void setProcessExternalEntities(boolean processExternalEntities)

Indicate whether external XML entities are processed when converting to a Source.

Default is false, meaning that external entities are not resolved.

Note: setting this option to true also automatically sets setSupportDtd(boolean) to true.

isProcessExternalEntities

public boolean isProcessExternalEntities()

Return whether XML external entities are allowed.

supports

public boolean supports(Class<?> clazz)

Description copied from class: AbstractHttpMessageConverter

Indicates whether the given class is supported by this converter.

Specified by:

supports in class AbstractHttpMessageConverter<T extends Source>

Parameters:

clazz - the class to test for support

Returns:

true if supported; false otherwise

readInternal

protected T readInternal(Class<? extends T> clazz,
 HttpInputMessage inputMessage)
                  throws IOException,
HttpMessageNotReadableException

Description copied from class: AbstractHttpMessageConverter

Abstract template method that reads the actual object. Invoked from AbstractHttpMessageConverter.read(java.lang.Class<? extends T>, org.springframework.http.HttpInputMessage).

Specified by:

readInternal in class AbstractHttpMessageConverter<T extends Source>

Parameters:

clazz - the type of object to return

inputMessage - the HTTP input message to read from

Returns:

the converted object

Throws:

IOException - in case of I/O errors

HttpMessageNotReadableException - in case of conversion errors

getContentLength

@Nullable
protected Long getContentLength(T t,
 @Nullable
 MediaType contentType)

Description copied from class: AbstractHttpMessageConverter

Returns the content length for the given type.

By default, this returns null, meaning that the content length is unknown. Can be overridden in subclasses.

Overrides:

getContentLength in class AbstractHttpMessageConverter<T extends Source>

Parameters:

t - the type to return the content length for

Returns:

the content length, or null if not known

writeInternal

protected void writeInternal(T t,
 HttpOutputMessage outputMessage)
                      throws IOException,
HttpMessageNotWritableException

Description copied from class: AbstractHttpMessageConverter

Abstract template method that writes the actual body. Invoked from AbstractHttpMessageConverter.write(T, org.springframework.http.MediaType, org.springframework.http.HttpOutputMessage).

Specified by:

writeInternal in class AbstractHttpMessageConverter<T extends Source>

Parameters:

t - the object to write to the output message

outputMessage - the HTTP output message to write to

Throws:

IOException - in case of I/O errors

HttpMessageNotWritableException - in case of conversion errors

supportsRepeatableWrites

protected boolean supportsRepeatableWrites(T t)

Description copied from class: AbstractHttpMessageConverter

Indicates whether this message converter can write the given object multiple times.

The default implementation returns false.

Overrides:

supportsRepeatableWrites in class AbstractHttpMessageConverter<T extends Source>

Parameters:

t - the object t

Returns:

true if t can be written repeatedly; false otherwise