com.github.inspektr.common.spi
Interface PrincipalResolver

public interface PrincipalResolver

An SPI interface needed to be implemented by individual applications requiring an audit trail record keeping functionality, to provide a currently authenticated principal performing an audit-able action.

Since:

1.0

Version:

$Revision$ $Date$

Author:

Dmitriy Kopylenko, Scott Battaglia

Field Summary

static String	ANONYMOUS_USER Default String that can be used when the user is anonymous.
static String	UNKNOWN_USER Default String that can be used when the user cannot be determined.

Method Summary

String	resolve() Called when there is no other way to resolve the principal (i.e.
String	resolveFrom(org.aspectj.lang.JoinPoint auditTarget, Exception exception) Resolve the principal performing an audit-able action that has incurred an exception.
String	resolveFrom(org.aspectj.lang.JoinPoint auditTarget, Object returnValue) Resolve the principal performing an audit-able action.

Field Detail

ANONYMOUS_USER

static final String ANONYMOUS_USER

Default String that can be used when the user is anonymous.

See Also:

Constant Field Values

UNKNOWN_USER

static final String UNKNOWN_USER

Default String that can be used when the user cannot be determined.

See Also:

Constant Field Values

Method Detail

resolveFrom

String resolveFrom(org.aspectj.lang.JoinPoint auditTarget,
                   Object returnValue)

Resolve the principal performing an audit-able action.

Note, this method should NEVER throw an exception *unless* the expectation is that a failed resolution causes the entire transaction to fail. Otherwise use UNKNOWN_USER.

Parameters:

auditTarget - the join point where we're auditing.

returnValue - the returned value

Returns:

The principal as a String. CANNOT be NULL.

resolveFrom

String resolveFrom(org.aspectj.lang.JoinPoint auditTarget,
                   Exception exception)

Resolve the principal performing an audit-able action that has incurred an exception.

Note, this method should NEVER throw an exception *unless* the expectation is that a failed resolution causes the entire transaction to fail. Otherwise use UNKNOWN_USER.

Parameters:

auditTarget - the join point where we're auditing.

exception - The exception incurred when the join point proceeds.

Returns:

The principal as a String. CANNOT be NULL.

resolve

String resolve()

Called when there is no other way to resolve the principal (i.e. an error was captured, auditing was not called, etc.)

Note, this method should NEVER throw an exception *unless* the expectation is that a failed resolution causes the entire transaction to fail. Otherwise use UNKNOWN_USER.

Returns:

the principal. CANNOT be NULL.