org.springframework.http.converter
Class StringHttpMessageConverter

java.lang.Object
  org.springframework.http.converter.AbstractHttpMessageConverter<String>
      org.springframework.http.converter.StringHttpMessageConverter

All Implemented Interfaces:

HttpMessageConverter<String>

public class StringHttpMessageConverter
extends AbstractHttpMessageConverter<String>

Implementation of HttpMessageConverter that can read and write strings.

By default, this converter supports all media types (*/*), and writes with a Content-Type of text/plain. This can be overridden by setting the supportedMediaTypes property.

Since:

3.0

Author:

Arjen Poutsma

Field Summary

static Charset

DEFAULT_CHARSET

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

logger

Constructor Summary

StringHttpMessageConverter()
A default constructor that uses "ISO-8859-1" as the default charset.

StringHttpMessageConverter(Charset defaultCharset)
A constructor accepting a default charset to use if the requested content type does not specify one.

Method Summary

protected List<Charset>	getAcceptedCharsets() Return the list of supported Charset.
protected Long	getContentLength(String s, MediaType contentType) Returns the content length for the given type.
protected String	readInternal(Class clazz, HttpInputMessage inputMessage) Abstract template method that reads the actualy object.
void	setWriteAcceptCharset(boolean writeAcceptCharset) Indicates whether the Accept-Charset should be written to any outgoing request.
boolean	supports(Class<?> clazz) Indicates whether the given class is supported by this converter.
protected void	writeInternal(String s, HttpOutputMessage outputMessage) Abstract template method that writes the actual body.

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

canRead, canRead, canWrite, canWrite, getDefaultContentType, getSupportedMediaTypes, read, setSupportedMediaTypes, write

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_CHARSET

public static final Charset DEFAULT_CHARSET

Constructor Detail

StringHttpMessageConverter

public StringHttpMessageConverter()

A default constructor that uses "ISO-8859-1" as the default charset.

See Also:

StringHttpMessageConverter(Charset)

StringHttpMessageConverter

public StringHttpMessageConverter(Charset defaultCharset)

A constructor accepting a default charset to use if the requested content type does not specify one.

Method Detail

setWriteAcceptCharset

public void setWriteAcceptCharset(boolean writeAcceptCharset)

Indicates whether the Accept-Charset should be written to any outgoing request.

Default is true.

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<String>

Parameters:

clazz - the class to test for support

Returns:

true if supported; false otherwise

readInternal

protected String readInternal(Class clazz,
                              HttpInputMessage inputMessage)
                       throws IOException

Description copied from class: AbstractHttpMessageConverter

Abstract template method that reads the actualy object. Invoked from AbstractHttpMessageConverter.read(java.lang.Class, org.springframework.http.HttpInputMessage).

Specified by:

readInternal in class AbstractHttpMessageConverter<String>

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

getContentLength

protected Long getContentLength(String s,
                                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<String>

Parameters:

s - the type to return the content length for

Returns:

the content length, or null if not known

writeInternal

protected void writeInternal(String s,
                             HttpOutputMessage outputMessage)
                      throws IOException

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<String>

Parameters:

s - the object to write to the output message

outputMessage - the message to write to

Throws:

IOException - in case of I/O errors

getAcceptedCharsets

protected List<Charset> getAcceptedCharsets()

Return the list of supported Charset.

By default, returns Charset.availableCharsets(). Can be overridden in subclasses.

Returns:

the list of accepted charsets