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#
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# ActiveDoc.pm
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#
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# Originally Written by Christopher Williams
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#
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# Description
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#
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# Interface
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# ---------
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# new(ActiveStore) : A new ActiveDoc object
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# url() : Return/set the docs url - essential
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# file() : Return the local filename of document
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# ProcessFile() : Return the filename of PreProcessed document
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#
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# parent() : return the object ref of the calling parent
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# getfile(url) : get a processedfile object given a url
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# activatedoc(url) : Return the object ref for a doc described by the given url
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#
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# -- error methods --
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# error(string) : Report an general error to the user
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# parseerror(string) : Report an error during parsing a file
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# line([linenumber]) : Return the line number of the document
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# and the ProcessedFileObj it is in corresponding to the
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# supplied number of the expanded document
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# If no number supplied - the currentparse number will be
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# used
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package ActiveDoc::ActiveDoc;
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require 5.004;
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use ActiveDoc::SimpleURLDoc;
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use ActiveDoc::PreProcessedFile;
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use Utilities::Verbose;
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@ISA = qw(ActiveDoc::SimpleURLDoc Utilities::Verbose);
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sub new {
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my $class=shift;
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my $self={};
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bless $self, $class;
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$self->{Ostore}=shift;
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$self->cache($self->{Ostore}->cache());
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$self->{dbstore}=$self->{Ostore};
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$self->_initdoc("doc",@_);
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return $self;
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}
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sub url {
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my $self=shift;
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# get file & preprocess
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if ( @_ ) {
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$self->{origurl}=shift;
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$self->{File}=$self->getfile($self->{origurl});
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$self->filetoparse($self->{File}->ProcessedFile());
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$self->verbose("url downloaded to ".$self->{File}->ProcessedFile());
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}
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if ( defined $self->{File} ) {
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return $self->{File}->url();
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}
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else { return "undefined"; }
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}
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sub getfile {
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my $self=shift;
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my $origurl=shift;
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my $fileref;
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my ($url, $file);
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if ( 0 ) {
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$self->verbose("Forced download of $origurl");
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($url, $file)=$self->urldownload($origurl);
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}
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else {
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$self->verbose("Attempting to get $origurl");
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($url, $file)=$self->urlget($origurl);
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}
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# do we already have an appropriate object?
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($fileref)=$self->{dbstore}->find($url);
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if ( defined $fileref ) {
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$self->verbose("Found $url in database");
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$fileref->update();
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}
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else {
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if ( $file eq "" ) {
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$self->parseerror("Unable to get $origurl");
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}
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# -- set up a new preprocess file
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$self->verbose("Making a new preprocessed file $url");
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$fileref=ActiveDoc::PreProcessedFile->new($self->{Ostore});
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#$fileref->cache($self->{cache});
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$fileref->url($url);
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$fileref->update();
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}
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return $fileref;
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}
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sub activatedoc {
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my $self=shift;
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my $url=shift;
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# first get a preprocessed copy of the file
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my $fileobj=$self->getfile($url);
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# now parse it for the <Doc> tag
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my $tempdoc=ActiveDoc::SimpleURLDoc->new($self->{cache});
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$tempdoc->filetoparse($fileobj->ProcessFile());
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my ($doctype,$docversion)=$tempdoc->doctype();
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undef $tempdoc;
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if ( ! defined $doctype ) {
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$self->parseerror("No <Doc type=> Specified in ".$url);
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}
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$self->verbose("doctype required is $doctype $docversion");
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# Set up a new object of the specified type
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eval "require $doctype";
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die $@ if $@;
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my $newobj=$doctype->new($self->{Ostore}, $url);
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$newobj->url($url);
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#$newobj->parent($self);
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return $newobj;
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}
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sub parent {
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my $self=shift;
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@_?$self->{parent}=shift
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:$self->{parent};
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}
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# -------- Error Handling and Error services --------------
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sub parseerror {
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my $self=shift;
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my $string=shift;
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if ( $self->currentparsename() eq "" ) {
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$self->error($string);
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}
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elsif ( ! defined $self->{File} ) {
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print "Parse Error in ".$self->filenameref()." line "
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.$self->{currentparser}->line()."\n";
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print $string."\n";
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}
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else {
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($line, $file)=$self->line();
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print "Parse Error in ".$file->url().", line ".
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$line."\n";
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print $string."\n";
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}
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exit;
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}
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sub line {
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my $self=shift;
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my $parseline;
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if ( @_ ) {
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$parseline=shift;
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}
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else {
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$parseline=$self->{currentparser}->line();
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}
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my ($line, $fileobj)=
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$self->{File}->realline($parseline);
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return ($line, $fileobj);
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}
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sub tagstartline {
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my $self=shift;
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my ($line, $fileobj)=$self->{File}->line(
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$self->{currentparser}->tagstartline());
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return ($line, $fileobj);
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}
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sub file {
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my $self=shift;
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$self->{File}->file();
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}
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sub ProcessFile {
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my $self=shift;
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return $self->{File}->ProcessedFile();
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}
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#
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# Delegate all else to the switch
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#
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#sub AUTOLOAD {
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# my $self=shift;
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# dont propogate destroy methods
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# return if $AUTOLOAD=~/::DESTROY/;
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# remove this package name
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# ($name=$AUTOLOAD)=~s/ActiveDoc::ActiveDoc:://;
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# pass the message to SimpleDoc
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# $self->{switch}->$name(@_);
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#}
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# ------------------- Tag Routines -----------------------------------
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sub Doc_Start {
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my $self=shift;
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my $name=shift;
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my $hashref=shift;
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$self->checktag($name, $hashref, "type");
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$self->{doctypefound}++;
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if ( $self->{doctypefound} == 1 ) { # only take first doctype
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$self->{docobject}=$$hashref{'type'};
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}
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}
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