Util::HEAdas (version 2.2)

package Util::HEAdas;
##############################################################################
#
# DESCRIPTION: This sub-class adds HEAdas environment initialization
#
# HISTORY
# HISTORY: $Log: HEAdas.pm,v $
# HISTORY: Revision 1.3  2007/01/31 16:04:08  apsop
# HISTORY: Update to version being used by swift.  Merge in intializations previous done by ftools. Override variables unitentionally picked up from the starting environment.
# HISTORY:
# HISTORY: Revision 1.2  2006/08/01 20:35:34  apsop
# HISTORY: Add in CVS history indicator.
# HISTORY:
# HISTORY: 1.0 -> 1.1 2001-03-05
# HISTORY: Modified the way the PATH and LD_LIBRARY_PATH environment variables
# HISTORY: are set to make the more robust.
# HISTORY:
# HISTORY: 1.1 -> 2.0 2002-04-18
# HISTORY: Made this a subclass of ParfileTool to better handle FTOOLS
# HISTORY: and HEAdas, not to mention PseudoFtools.
# HISTORY:
# HISTORY: 2.0 -> 2.1 2004-02-11
# HISTORY: The environment method now returns a reference to a hash
# HISTORY: 
# HISTORY: 2.1 -> 2.2 2004-03-09
# HISTORY: Moved HEADASNOQUERY environment variable to ParfileTool.pm
#
# VERSION: 2.2
#
##############################################################################

use Util::ParfileTool;
@ISA=("Util::ParfileTool");
use strict;

use Util::Ftool;
use Util::Xanadu;

my $INSTALL_DIR;
my @BINS=();
my @LIBS=();
my $SYSPFILES;
my %ENVIRONMENT=();
my %SCRIPT_ENVIRONMENT=();

my $VERSION;

#########################################################################
# 
#########################################################################
sub new {
    my $self=shift;
    my $tool=shift;

    $self->SUPER::new($tool,$SYSPFILES, \@BINS, \@LIBS);

} # end of constructor


######################
# ACCESSORS:
######################

########################################################################
# Returns a hash of environment variables which must
# be set before running this tool
########################################################################
sub environment {
    my $self=shift;

    if ($self->{IS_SCRIPT} ) { return {%{$self->SUPER::environment()}, %ENVIRONMENT, %SCRIPT_ENVIRONMENT}; }
    else                    { return {%{$self->SUPER::environment()}, %ENVIRONMENT}; }

} # end of environment method

####################################################################
# This method does all the initialization for this class, given
# the name of the machine-specific instalation directory.
# Note this method must be called after the corresponding method is called
# for the Ftools.
####################################################################
sub install_dir {
        my $self=shift;


    if(@_) {
        $INSTALL_DIR=shift;

        #####################################################
        # set the executable directories and 
        # the parfile directory
        #####################################################
        @BINS=("$INSTALL_DIR/bin");
        @LIBS=("$INSTALL_DIR/lib");
        $SYSPFILES = "$INSTALL_DIR/syspfiles";

        ##########################################
        # parse the version name
        ##########################################
        ($VERSION) = $INSTALL_DIR =~ m|/\w*\.([^/]*)/|;


        #####################################################
        # Set the environment variables
        #####################################################
        $ENVIRONMENT{HEADAS}=$INSTALL_DIR;
##        $ENVIRONMENT{HEADASOUTPUT}="stdout";
##        $ENVIRONMENT{HEADASERROR }="stderr";
        $ENVIRONMENT{HEADASPROMPT}="/dev/null";
        $ENVIRONMENT{LHEAPERL}=$^X; # <- perl version running this script

        
        #####################################################
        # special stuff for scripts
        #####################################################
        my $ftools = Util::Ftool->install_dir;

        $SCRIPT_ENVIRONMENT{HOME} = '.';

#	my $envPERLLIB = $ENV{PERLLIB} || '';
#        $SCRIPT_ENVIRONMENT{PERLLIB} = "$INSTALL_DIR/lib/perl:$envPERLLIB";
        $SCRIPT_ENVIRONMENT{PERLLIB} = "$INSTALL_DIR/lib/perl";
        $SCRIPT_ENVIRONMENT{PERL5LIB} = "$INSTALL_DIR/lib/perl";
#	$envPERLLIB = $ENV{PERL5LIB} || '';
#        $SCRIPT_ENVIRONMENT{PERL5LIB} = "$INSTALL_DIR/lib/perl:$envPERLLIB";

        $SCRIPT_ENVIRONMENT{PATH} = join(":", @BINS, "$ftools/bin", $ENV{PATH});

        # ack
#        push(@LIBS, "$ftools/lib");
#        $SCRIPT_ENVIRONMENT{PFILES} = ".;$SYSPFILES:$ftools/syspfiles";

        # need Xanadu setup too
        my $xanadu = Util::Xanadu->new('ximage');
	my $xanenv = $xanadu->environment;
        my @keys = keys(%$xanenv);
        @SCRIPT_ENVIRONMENT{@keys} = @{$xanenv}{@keys};

        push(@LIBS, $xanadu->libs);
    }

    return $INSTALL_DIR;
}

##############################################################
# returns the version of the package being used.
# Note this version name is derived by parsing the name
# of the instalation directory.
############################################################
sub version {
    my $self=shift;
    return $VERSION;
}


####################################################
# assemble the error message.
# Override the generic message to specify "FTOOL"
####################################################
sub error_message {
    my $self=shift;

    my $message="Error from HEAdas Task $self->{COMMAND} - ".
                "exit status $self->{STATUS}";
    return $message;
}


sub DESTROY {
  my $self = shift;
  # check for an overridden destructor...
  $self->SUPER::DESTROY if $self->can("SUPER::DESTROY");
}


1;