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lib/AMF/Perl/App/Executive.pm  view on Meta::CPAN

#my $_classConstruct;
# the method to execute in the construct
#my $_methodname;
# the defined return type
#my $_returnType;
# the instance name to use for this gateway executive
#my $_instanceName;
# the list with registered service-packagees
#my $services = {};
# The original incoming classpath
#my $_target;
# The original classpath
#my $_origClassPath;
# switch to take different actions based on the header
#my $_headerFilter;
        
# constructor
sub new
{
    my ($proto)=@_;
    my $self={};
    bless $self, $proto;
    return $self;
    # nothing really to do here yet?
}


# setter for the _headerFilter
sub setHeaderFilter 
{
    my ($self, $header) = @_;
    $self->{_headerFilter} = $header;
}

# Set the base classpath. This is the path from which will be search for the packagees and functions
# $basecp should end with a "/";
sub setBaseClassPath
{
    my ($self, $basecp) = @_; 
    $self->{_basecp} = $basecp; 
}

sub setInstanceName
{  
    my ($self, $name) = @_; 
    $self->{_instanceName} = $name;
}

# you pass directory.script.method to this and it will build
# the classpath, classname and methodname values
sub setTarget
{
    my ($self, $target)=@_;
    $self->{target} = $target;
    # grab the position of the last . char
    my $lpos = strrpos($target, ".");
    # there were none
    unless ($lpos) 
    {
        print STDERR "Service name $target does not contain a dot.\n";
        # throw an error because there has to be atleast 1
    } 
    else
    {
        # the method name is the very last part
        $self->{_methodname} = substr($target, $lpos+1);
    }
    # truncate the method name from the string
    my $trunced = substr($target, 0, $lpos);
    
    $self->{_classname} = $trunced;
}

sub registerService
{
    my ($self, $package, $servicepackage) = @_;
    $self->{services}->{$package} = $servicepackage;
}

# returns the return type for this method
sub getReturnType
{
    my ($self)=@_;
    return $self->{_returnType};
}

# execute the method using dynamic inclusion of Perl files
sub doMethodCall 
{
    my ($self, $a) = @_;
    
    #First try to call a registered class...
    my $package = $self->{_classname};
    my $method = $self->{_methodname};
    
    my $calledMethod = $method;
    
    if(exists $self->{services}->{$package})
    {    
        return $self->doMethodCall_registered($package, $method, $a);
    }
    
    #Otherwise, browse in the directory specified by the user.

    push @INC, $self->{_basecp};

    # build the class object
    
    $package =~ s#\.#::#g;
    
    unless (eval ("require " . $package))
    {
        # report back to flash that the class wasn't properly formatted
        print STDERR  "Class $package does not exist or could not be loaded.\n";
	print STDERR $@;
        return;
    }

    # build the construct from the extended class
    my $object = $package->new;