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

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

All Methods Instance Methods Concrete Methods
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 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

- Constructor Detail
  - SourceHttpMessageConverter
```
public SourceHttpMessageConverter()
```
    Sets the supportedMediaTypes to text/xml and application/xml, and application/*-xml.
- Method Detail
  - 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

Class SourceHttpMessageConverter<T extends Source>

Field Summary

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

Constructor Summary

Method Summary

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

Methods inherited from class java.lang.Object

Constructor Detail

SourceHttpMessageConverter

Method Detail

setSupportDtd

isSupportDtd

setProcessExternalEntities

isProcessExternalEntities

supports

readInternal

getContentLength

writeInternal