SignerFactory (XiPKI :: security 6.2.0 API)

All Known Implementing Classes:

P11SignerFactory, P12SignerFactory
```
public interface SignerFactory
```
Factory to create ConcurrentContentSigner.

Since:

2.0.0

Author:

Lijun Liao (xipki)

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`canCreateSigner(String type)`	Indicates whether a signer of the given `type` can be created or not.
`Set<String>`	`getSupportedSignerTypes()`	Retrieves the types of supported signers.
`ConcurrentContentSigner`	`newSigner(String type, SignerConf conf, X509Cert[] certificateChain)`	Creates a new signer.

- Method Detail
  - getSupportedSignerTypes
```
Set<String> getSupportedSignerTypes()
```
    Retrieves the types of supported signers.
    
    Returns:
    
    lower-case types of supported signers, never null.
  - canCreateSigner
```
boolean canCreateSigner(String type)
```
    Indicates whether a signer of the given type can be created or not.
    
    Parameters:
    
    type - Type of the signer. Must not be null.
    
    Returns:
    
    true if signer of the given type can be created, false otherwise.
  - newSigner
```
ConcurrentContentSigner newSigner(String type,
                                  SignerConf conf,
                                  X509Cert[] certificateChain)
                           throws org.xipki.util.exception.ObjectCreationException
```
    Creates a new signer.
    
    Parameters:
    
    type - Type of the signer. Must not be null.
    
    conf - Configuration of the signer. Must not be null.
    
    certificateChain - Certificate chain of the signer. Could be null.
    
    Returns:
    
    new signer.
    
    Throws:
    
    org.xipki.util.exception.ObjectCreationException - if signer could not be created.