SilverpeasWebTokenService (Silverpeas Core 6.4 API)

java.lang.Object
- org.silverpeas.core.web.token.SilverpeasWebTokenService

```
@Technical
@Bean
@Singleton
public class SilverpeasWebTokenService
extends Object
```
This service allows generating several WEB tokens per identifier.
An identifier represents any kind of resource (Service, entity, etc.).

This allows a service to identify use token to identify resources without using the real identifiers.

Generated tokens MUST be cleared by the service which creating them.

Author:

silveryocha

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class SilverpeasWebTokenService.WebToken

Field Summary

Fields
Modifier and Type Field Description

protected static int MAX_TOKENS_PER_ID

Constructor Summary

Constructors
Constructor Description

SilverpeasWebTokenService()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Optional<String>`	`consumeIdentifierBy(String tokenValue)`	Gets the identifier behind the given token value.
`SilverpeasWebTokenService.WebToken`	`generateFor(String identifier)`	Generates a new token linked to an identifier.
`static SilverpeasWebTokenService`	`get()`
`void`	`revokeById(String id)`	Removes all generated token for an identifier.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - MAX_TOKENS_PER_ID
```
protected static final int MAX_TOKENS_PER_ID
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - SilverpeasWebTokenService
```
public SilverpeasWebTokenService()
```
- Method Detail
  - get
```
public static SilverpeasWebTokenService get()
```
  - generateFor
```
public SilverpeasWebTokenService.WebToken generateFor(String identifier)
```
    Generates a new token linked to an identifier.
    The token is put into cache.
    
    To retrieve the identifier, please use consumeIdentifierBy(String).
    
    At most MAX_TOKENS_PER_ID tokens CAN be generated per identifier. When this limit is reached, the next takes previous token space.
    
    Parameters:
    
    identifier - any identifier as string managed by any service.
    
    Returns:
    
    a new instance of SilverpeasWebTokenService.WebToken.
  - consumeIdentifierBy
```
public Optional<String> consumeIdentifierBy(String tokenValue)
```
    Gets the identifier behind the given token value.
    
    Parameters:
    
    tokenValue - a token value.
    
    Returns:
    
    an optional string representing the identifier behind the token.
  - revokeById
```
public void revokeById(String id)
```
    Removes all generated token for an identifier.
    
    Parameters:
    
    id - any identifier.