Nathan Cutler

NAME

App::CELL::Status - class for return value objects

VERSION

Version 0.207

SYNOPSIS

    use App::CELL::Status;

    # simplest usage
    my $status = App::CELL::Status->ok;
    print "ok" if ( $status->ok );
    $status = App::CELL::Status->not_ok;
    print "NOT ok" if ( $status->not_ok );

    # as a return value: in the caller
    my $status = $XYZ( ... );
    return $status if not $status->ok;  # handle failure
    my $payload = $status->payload;     # handle success

INHERITANCE

This module inherits from App::CELL::Message

DESCRIPTION

An App::CELL::Status object is a reference to a hash containing some or all of the following keys (attributes):

level - the status level (see "new", below)
message - message explaining the status
caller - an array reference containing the three-item list generated by the caller function

The typical use cases for this object are:

As a return value from a function call
To trigger a higher-severity log message

All calls to App::CELL::Status->new with a status other than OK trigger a log message.

PUBLIC METHODS

This module provides the following public methods:

new

Construct a status object and trigger a log message if the level is anything other than "OK". Always returns a status object. If no level is specified, the level will be 'ERR'. If no code is given, the code will be

ok

If the first argument is blessed, assume we're being called as an instance method: return true if status is OK, false otherwise.

Otherwise, assume we're being called as a class method: return a new OK status object with optional payload (optional parameter to the method call, must be a scalar).

not_ok

Similar method to 'ok', except it handles 'NOT_OK' status.

When called as an instance method, returns a true value if the status level is anything other than 'OK'. Otherwise false.

When called as a class method, returns a 'NOT_OK' status object. Optionally, a payload can be supplied as an argument.

level

Accessor method, returns level of status object in ALL-CAPS. All status objects must have a level attribute.

code

Accesor method, returns code of status object, or "<NONE>" if none present.

args

Accessor method - returns value of the 'args' property.

text

Accessor method, returns text of status object, or the code if no text present. If neither code nor text are present, returns "<NONE>"

caller

Accessor method. Returns array reference containing output of caller function associated with this status object, or [] if not present.

payload

When called with no arguments, acts like an accessor method. When called with a scalar argument, either adds that as the payload or changes the payload to that.

Logs a warning if an existing payload is changed.

Returns the (new) payload or undef.

msgobj

Accessor method (returns the parent message object)

expurgate

Make a deep copy of the status object, unbless it, and remove certain attributes deemed "extraneous".