Package org.infinispan.commons.dataconversion

Class StandardConversions

java.lang.Object

org.infinispan.commons.dataconversion.StandardConversions

public final class StandardConversions
extends Object

Utilities to convert between text/plain, octet-stream, java-objects and url-encoded contents.

Since:

9.2

Constructor Summary

Constructors

Constructor	Description
StandardConversions()

Method Summary

Modifier and Type	Method	Description
static String	bytesToHex(byte[] bytes)
static byte[]	convertCharset(Object content, Charset fromCharset, Charset toCharset)	Convert text content.
static byte[]	convertJavaToOctetStream(Object source, MediaType sourceMediaType, Marshaller marshaller)	Converts a java object to a sequence of bytes applying standard java serialization.
static byte[]	convertJavaToText(Object source, MediaType sourceMediaType, MediaType destinationMediaType)	Converts a java object to a text/plain representation.
static Object	convertOctetStreamToJava(byte[] source, MediaType destination, Marshaller marshaller)	Converts an octet stream to a Java object
static byte[]	convertOctetStreamToText(byte[] source, MediaType destination)	Converts generic byte[] to text.
static Object	convertOctetStreamToUrlEncoded(Object content, MediaType contentType)
static String	convertTextToObject(Object source, MediaType sourceType)	Converts text content to the Java representation (String).
static byte[]	convertTextToOctetStream(Object source, MediaType sourceType)	Converts text content to binary.
static Object	convertTextToText(Object source, MediaType sourceType, MediaType destinationType)	Convert text content to a different encoding.
static String	convertTextToUrlEncoded(Object source, MediaType sourceType)	Convert text format to a URL safe format.
static Object	convertUrlEncodedToObject(Object content)	Handle x-www-form-urlencoded as single values for now.
static Object	convertUrlEncodedToOctetStream(Object content)
static Object	convertUrlEncodedToText(Object content, MediaType destinationType)
static Object	decodeObjectContent(Object content, MediaType contentMediaType)	Decode UTF-8 as a java object.
static byte[]	decodeOctetStream(Object input, MediaType octetStream)	Decode a octet-stream content that is not a byte[].
static byte[]	hexToBytes(String hex)
static Object	urlDecode(Object content)
static String	urlEncode(Object content, MediaType mediaType)

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardConversions

public StandardConversions()

Method Detail

convertTextToText

public static Object convertTextToText(Object source,
                                       MediaType sourceType,
                                       MediaType destinationType)

Convert text content to a different encoding.

Parameters:

source - The source content.

sourceType - MediaType for the source content.

destinationType - the MediaType of the converted content.

Returns:

content conforming to the destination MediaType.

convertTextToOctetStream

public static byte[] convertTextToOctetStream(Object source,
                                              MediaType sourceType)

Converts text content to binary.

Parameters:

source - The source content.

sourceType - MediaType for the source content.

Returns:

content converted as octet-stream represented as byte[].

Throws:

EncodingException - if the source cannot be interpreted as plain text.

convertTextToObject

public static String convertTextToObject(Object source,
                                         MediaType sourceType)

Converts text content to the Java representation (String).

Parameters:

source - The source content

sourceType - the MediaType of the source content.

Returns:

String representation of the text content.

Throws:

EncodingException - if the source cannot be interpreted as plain text.

convertTextToUrlEncoded

public static String convertTextToUrlEncoded(Object source,
                                             MediaType sourceType)

Convert text format to a URL safe format.

Parameters:

source - the source text/plain content.

sourceType - the MediaType of the source content.

Returns:

a String with the content URLEncoded.

Throws:

EncodingException - if the source format cannot be interpreted as plain/text.

convertOctetStreamToText

public static byte[] convertOctetStreamToText(byte[] source,
                                              MediaType destination)

Converts generic byte[] to text.

Parameters:

source - byte[] to convert.

destination - MediaType of the desired text conversion.

Returns:

byte[] content interpreted as text, in the encoding specified by the destination MediaType.

convertOctetStreamToJava

public static Object convertOctetStreamToJava(byte[] source,
                                              MediaType destination,
                                              Marshaller marshaller)

Converts an octet stream to a Java object

Parameters:

source - The source to convert

destination - The type of the converted object.

Returns:

an instance of a java object compatible with the supplied destination type.

convertJavaToOctetStream

public static byte[] convertJavaToOctetStream(Object source,
                                              MediaType sourceMediaType,
                                              Marshaller marshaller)
                                       throws IOException,
                                              InterruptedException

Converts a java object to a sequence of bytes applying standard java serialization.

Parameters:

source - source the java object to convert.

sourceMediaType - the MediaType matching application/x-application-object describing the source.

Returns:

byte[] representation of the java object.

Throws:

EncodingException - if the sourceMediaType is not a application/x-java-object or if the conversion is not supported.

IOException

InterruptedException

convertJavaToText

public static byte[] convertJavaToText(Object source,
                                       MediaType sourceMediaType,
                                       MediaType destinationMediaType)

Converts a java object to a text/plain representation.

Parameters:

source - Object to convert.

sourceMediaType - The MediaType for the source object.

destinationMediaType - The required text/plain specification.

Returns:

byte[] with the text/plain representation of the object with the requested charset.

decodeObjectContent

public static Object decodeObjectContent(Object content,
                                         MediaType contentMediaType)

Decode UTF-8 as a java object. For this conversion, the "type" parameter is used in the supplied MediaType. Currently supported types are primitives and String, plus a special "ByteArray" to describe a sequence of bytes.

Parameters:

content - The content to decode.

contentMediaType - the MediaType describing the content.

Returns:

instance of Object according to the supplied MediaType "type" parameter, or if no type is present, the object itself.

Throws:

EncodingException - if the provided type is not supported.

convertCharset

public static byte[] convertCharset(Object content,
                                    Charset fromCharset,
                                    Charset toCharset)

Convert text content.

Parameters:

content - Object to convert.

fromCharset - Charset of the provided content.

toCharset - Charset to convert to.

Returns:

byte[] with the content in the desired charset.

decodeOctetStream

public static byte[] decodeOctetStream(Object input,
                                       MediaType octetStream)

Decode a octet-stream content that is not a byte[]. For this, it uses a special param called "encoding" in the "application/octet-stream" MediaType. The "encoding" param supports only the "hex" value that represents an octet-stream as a hexadecimal representation, for example "0xdeadbeef". In the absence of the "encoding" param, it will assume base64 encoding.

Parameters:

input - Object representing the binary content.

octetStream - The MediaType describing the input.

Returns:

a byte[] with the decoded content.

bytesToHex

public static String bytesToHex(byte[] bytes)

hexToBytes

public static byte[] hexToBytes(String hex)

convertUrlEncodedToObject

public static Object convertUrlEncodedToObject(Object content)

Handle x-www-form-urlencoded as single values for now. Ideally it should generate a Map<String, String>

convertUrlEncodedToText

public static Object convertUrlEncodedToText(Object content,
                                             MediaType destinationType)

convertUrlEncodedToOctetStream

public static Object convertUrlEncodedToOctetStream(Object content)

urlEncode

public static String urlEncode(Object content,
                               MediaType mediaType)

urlDecode

public static Object urlDecode(Object content)

convertOctetStreamToUrlEncoded

public static Object convertOctetStreamToUrlEncoded(Object content,
                                                    MediaType contentType)