java.lang.Object
- org.springframework.http.converter.AbstractHttpMessageConverter<T>
- - org.springframework.http.converter.AbstractGenericHttpMessageConverter<Object>
  - - org.springframework.http.converter.ResourceRegionHttpMessageConverter

All Implemented Interfaces:
GenericHttpMessageConverter<Object>, HttpMessageConverter<Object>
```
public class ResourceRegionHttpMessageConverter
extends AbstractGenericHttpMessageConverter<Object>
```
Implementation of HttpMessageConverter that can write a single ResourceRegion, or Collections of ResourceRegions.
Since:
4.3
Author:
Brian Clozel, Juergen Hoeller

Field Summary
- Fields inherited from class org.springframework.http.converter.AbstractHttpMessageConverter
  logger

Constructor Summary
Constructors
Constructor Description
ResourceRegionHttpMessageConverter()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`canRead(Class<?> clazz, MediaType mediaType)`	This implementation checks if the given class is supported, and if the supported media types include the given media type.
`boolean`	`canRead(Type type, Class<?> contextClass, MediaType mediaType)`	Indicates whether the given type can be read by this converter.
`boolean`	`canWrite(Class<?> clazz, MediaType mediaType)`	This implementation checks if the given class is supported, and if the supported media types include the given media type.
`boolean`	`canWrite(Type type, Class<?> clazz, MediaType mediaType)`	Indicates whether the given class can be written by this converter.
`protected MediaType`	`getDefaultContentType(Object object)`	Returns the default content type for the given type.
`Object`	`read(Type type, Class<?> contextClass, HttpInputMessage inputMessage)`	Read an object of the given type form the given input message, and returns it.
`protected ResourceRegion`	`readInternal(Class<?> clazz, HttpInputMessage inputMessage)`	Abstract template method that reads the actual object.
`protected void`	`writeInternal(Object object, Type type, HttpOutputMessage outputMessage)`	Abstract template method that writes the actual body.
`protected void`	`writeResourceRegion(ResourceRegion region, HttpOutputMessage outputMessage)`

Methods inherited from class org.springframework.http.converter.AbstractGenericHttpMessageConverter
supports, write, writeInternal

Methods inherited from class org.springframework.http.converter.AbstractHttpMessageConverter
addDefaultHeaders, canRead, canWrite, getContentLength, getDefaultCharset, 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, read, write

- Constructor Detail
  - ResourceRegionHttpMessageConverter
```
public ResourceRegionHttpMessageConverter()
```
- Method Detail
  - getDefaultContentType
```
protected MediaType getDefaultContentType(Object object)
```
    Description copied from class: AbstractHttpMessageConverter
    Returns the default content type for the given type. Called when AbstractHttpMessageConverter.write(T, org.springframework.http.MediaType, org.springframework.http.HttpOutputMessage) is invoked without a specified content type parameter.
    By default, this returns the first element of the supportedMediaTypes property, if any. Can be overridden in subclasses.
    Overrides:
    getDefaultContentType in class AbstractHttpMessageConverter<Object>
    Parameters:
    object - the type to return the content type for
    Returns:
    the content type, or null if not known
  - canRead
```
public boolean canRead(Class<?> clazz,
                       MediaType mediaType)
```
    Description copied from class: AbstractHttpMessageConverter
    This implementation checks if the given class is supported, and if the supported media types include the given media type.
    Specified by:
    canRead in interface HttpMessageConverter<Object>
    Overrides:
    canRead in class AbstractHttpMessageConverter<Object>
    Parameters:
    clazz - the class to test for readability
    mediaType - the media type to read (can be null if not specified); typically the value of a Content-Type header.
    Returns:
    true if readable; false otherwise
  - canRead
```
public boolean canRead(Type type,
                       Class<?> contextClass,
                       MediaType mediaType)
```
    Description copied from interface: GenericHttpMessageConverter
    Indicates whether the given type can be read by this converter. This method should perform the same checks than HttpMessageConverter.canRead(Class, MediaType) with additional ones related to the generic type.
    Specified by:
    canRead in interface GenericHttpMessageConverter<Object>
    Overrides:
    canRead in class AbstractGenericHttpMessageConverter<Object>
    Parameters:
    type - the (potentially generic) type to test for readability
    contextClass - a context class for the target type, for example a class in which the target type appears in a method signature (can be null)
    mediaType - the media type to read, can be null if not specified. Typically the value of a Content-Type header.
    Returns:
    true if readable; false otherwise
  - read
```
public Object read(Type type,
                   Class<?> contextClass,
                   HttpInputMessage inputMessage)
            throws IOException,
                   HttpMessageNotReadableException
```
    Description copied from interface: GenericHttpMessageConverter
    Read an object of the given type form the given input message, and returns it.
    Parameters:
    type - the (potentially generic) type of object to return. This type must have previously been passed to the canRead method of this interface, which must have returned true.
    contextClass - a context class for the target type, for example a class in which the target type appears in a method signature (can be null)
    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
  - readInternal
```
protected ResourceRegion readInternal(Class<?> 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<Object>
    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
  - canWrite
```
public boolean canWrite(Class<?> clazz,
                        MediaType mediaType)
```
    Description copied from class: AbstractHttpMessageConverter
    This implementation checks if the given class is supported, and if the supported media types include the given media type.
    Specified by:
    canWrite in interface HttpMessageConverter<Object>
    Overrides:
    canWrite in class AbstractHttpMessageConverter<Object>
    Parameters:
    clazz - the class to test for writability
    mediaType - the media type to write (can be null if not specified); typically the value of an Accept header.
    Returns:
    true if writable; false otherwise
  - canWrite
```
public boolean canWrite(Type type,
                        Class<?> clazz,
                        MediaType mediaType)
```
    Description copied from interface: GenericHttpMessageConverter
    Indicates whether the given class can be written by this converter.
    This method should perform the same checks than HttpMessageConverter.canWrite(Class, MediaType) with additional ones related to the generic type.
    Specified by:
    canWrite in interface GenericHttpMessageConverter<Object>
    Overrides:
    canWrite in class AbstractGenericHttpMessageConverter<Object>
    Parameters:
    type - the (potentially generic) type to test for writability (can be null if not specified)
    clazz - the source object class to test for writability
    mediaType - the media type to write (can be null if not specified); typically the value of an Accept header.
    Returns:
    true if writable; false otherwise
  - writeInternal
```
protected void writeInternal(Object object,
                             Type type,
                             HttpOutputMessage outputMessage)
                      throws IOException,
                             HttpMessageNotWritableException
```
    Description copied from class: AbstractGenericHttpMessageConverter
    Abstract template method that writes the actual body. Invoked from AbstractGenericHttpMessageConverter.write(T, java.lang.reflect.Type, org.springframework.http.MediaType, org.springframework.http.HttpOutputMessage).
    Specified by:
    writeInternal in class AbstractGenericHttpMessageConverter<Object>
    Parameters:
    object - the object to write to the output message
    type - the type of object to write (may be null)
    outputMessage - the HTTP output message to write to
    Throws:
    IOException - in case of I/O errors
    HttpMessageNotWritableException - in case of conversion errors
  - writeResourceRegion
```
protected void writeResourceRegion(ResourceRegion region,
                                   HttpOutputMessage outputMessage)
                            throws IOException
```
    Throws:
    IOException

Class ResourceRegionHttpMessageConverter

Field Summary

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

Constructor Summary

Method Summary

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceRegionHttpMessageConverter

Method Detail

getDefaultContentType

canRead

canRead

read

readInternal

canWrite

canWrite

writeInternal

writeResourceRegion