[22702] | 1 | package AutoloadConverterScripting;
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| 2 |
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| 3 | use strict;
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| 4 | no strict 'refs';
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| 5 | no strict 'subs';
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| 6 |
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| 7 | use ConvertBinaryFile;
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| 8 |
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| 9 | use gsprintf 'gsprintf';
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| 10 |
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| 11 | # This plugin inherits from ConvertBinaryFile as a base line (so by default
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| 12 | # behaviour is no different to ConvertBinaryFile). If it can find the
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| 13 | # plugin named in '::autoConverterScripting' then it loads this in as well
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| 14 | # ,setting variables visible to the outside world that indicate whether:
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| 15 | # 1. it found the named plugin, and
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| 16 | # 2. if the named plugin itself could find the necessary programs it
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| 17 | # needs to run
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| 18 |
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| 19 |
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| 20 | sub _dynamicISA
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| 21 | {
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| 22 | my ($autoPackage) = @_;
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| 23 |
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| 24 | my ($autoName) = ($autoPackage =~ m/(^.*)Converter$/);
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| 25 | my $autoVar = lc($autoName);
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| 26 |
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| 27 | my $self = {};
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| 28 |
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| 29 | $self->{'_autoPackage'} = $autoPackage;
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| 30 | $self->{'_autoName'} = $autoName;
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| 31 | $self->{'_autoVar'} = $autoVar;
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| 32 |
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| 33 | # Always want this
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| 34 | @AutoloadConverterScripting::ISA = ('ConvertBinaryFile' );
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| 35 |
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| 36 | # Now see if requested Converter plugin is around
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| 37 | eval("require $autoPackage");
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| 38 |
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| 39 | if ($@) {
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| 40 | # Useful debugging statement if there is a syntax error in the plugin
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| 41 | print STDERR "$@\n";
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| 42 | $self->{'scripting_ext_installed'} = 0;
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| 43 | $self->{'scripting_ext_working'} = 0;
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| 44 | }
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| 45 | else {
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| 46 | # Successfully found
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| 47 | $self->{'scripting_ext_installed'} = 1;
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| 48 |
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| 49 | # now check whether it can run soffice
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| 50 | if (eval "\$${autoPackage}::${autoVar}_conversion_available") {
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| 51 | $self->{'scripting_ext_working'} = 1;
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| 52 |
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| 53 | } else {
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| 54 | $self->{'scripting_ext_working'} = 0;
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| 55 | }
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| 56 | }
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| 57 |
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| 58 | if ($self->{'scripting_ext_working'}) {
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| 59 | push(@AutoloadConverterScripting::ISA, $autoPackage);
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| 60 | }
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| 61 |
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| 62 | return $self;
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| 63 | }
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| 64 |
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| 65 |
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| 66 | my $arguments = [];
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| 67 |
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| 68 | my $options = { 'name' => "ConverterScripting",
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| 69 | 'desc' => "{ConverterScripting.desc}",
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| 70 | 'abstract' => "yes",
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| 71 | 'inherits' => "yes",
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| 72 | 'args' => $arguments };
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| 73 |
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| 74 | ####
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[22705] | 75 | # This plugin takes an extra initial parameter in its constructor (compared
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| 76 | # with the norm). The extra parameter specifies which plugin it should
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| 77 | # try to dynamically load
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[22702] | 78 | #####
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| 79 |
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| 80 | sub new {
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| 81 | my ($class) = shift (@_);
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| 82 | my ($autoPackage, $pluginlist,$inputargs,$hashArgOptLists) = @_;
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| 83 | push(@$pluginlist, $class);
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| 84 |
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| 85 | my $dynamic_self = _dynamicISA($autoPackage);
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| 86 | my $autoName = $dynamic_self->{'_autoName'};
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| 87 | my $autoVar = $dynamic_self->{'_autoVar'};
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| 88 |
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[22705] | 89 | if ($dynamic_self->{'scripting_ext_installed'}) {
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| 90 | my ($cpackage,$cfilename,$cline,$csubr,$chas_args,$cwantarray) = caller(0);
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[22702] | 91 |
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[22705] | 92 | print STDERR "$class: $autoName Extension to Greenstone detected for $cpackage\n";
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[22702] | 93 | if ($dynamic_self->{'scripting_ext_working'}) {
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| 94 | # print STDERR "... and it appears to be working\n";
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| 95 | } else {
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| 96 | print STDERR "... but it appears to be broken\n";
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| 97 | &gsprintf(STDERR, "AutoloadConverter: {AutoloadConverter.noconversionavailable}");
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| 98 |
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| 99 | my $dictentry_reason
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| 100 | = eval "$autoPackage\.\$${autoPackage}::no_${autoVar}_conversion_reason";
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| 101 |
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| 102 | &gsprintf(STDERR, " ({$dictentry_reason})\n");
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| 103 | }
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| 104 | }
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| 105 |
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| 106 | if ($dynamic_self->{'scripting_ext_working'}) {
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| 107 |
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| 108 | my $opt_scripting_args =
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| 109 | [ { 'name' => "$autoVar\_scripting",
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| 110 | 'desc' => "{$autoPackage.$autoVar\_scripting}",
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| 111 | 'type' => "flag",
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| 112 | 'reqd' => "no" } ];
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| 113 |
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| 114 | push(@$arguments,@$opt_scripting_args);
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| 115 | }
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| 116 |
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| 117 | push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
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| 118 | push(@{$hashArgOptLists->{"OptList"}},$options);
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| 119 |
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| 120 | my $self;
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| 121 | if ($dynamic_self->{'scripting_ext_working'}) {
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| 122 |
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| 123 | my $autoc_self = eval "new $autoPackage(\$pluginlist, \$inputargs, \$hashArgOptLists,1);";
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| 124 | my $cbf_self = new ConvertBinaryFile($pluginlist, $inputargs, $hashArgOptLists);
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| 125 | $self = BasePlugin::merge_inheritance($dynamic_self,$autoc_self, $cbf_self);
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| 126 |
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| 127 | $self->{"{$autoVar}_available"} = 1;
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| 128 | }
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| 129 | else {
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| 130 | $self = new ConvertBinaryFile($pluginlist, $inputargs, $hashArgOptLists);
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| 131 | $self->{"{$autoVar}_available"} = 0;
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| 132 | }
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| 133 |
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| 134 | return bless $self, $class;
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| 135 | }
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| 136 |
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| 137 | sub init {
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| 138 | my $self = shift (@_);
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| 139 | my ($verbosity, $outhandle, $failhandle) = @_;
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| 140 | my $autoPackage = $self->{'_autoPackage'};
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| 141 |
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| 142 | $self->SUPER::init($verbosity,$outhandle,$failhandle);
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| 143 | if ($self->{'scripting_ext_working'}) {
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| 144 | eval "\$self->${autoPackage}::init();";
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| 145 | }
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| 146 | }
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| 147 |
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| 148 | sub begin {
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| 149 | my $self = shift (@_);
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| 150 | my $autoPackage = $self->{'_autoPackage'};
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| 151 |
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| 152 | if ($self->{'scripting_ext_working'}) {
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| 153 | eval "\$self->${autoPackage}::begin(\@_);";
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| 154 | }
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| 155 | $self->SUPER::begin(@_);
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| 156 | }
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| 157 |
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| 158 | sub deinit {
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| 159 | # called only once, after all plugin passes have been done
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| 160 | my ($self) = @_;
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| 161 | my $autoPackage = $self->{'_autoPackage'};
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| 162 |
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| 163 | if ($self->{'scripting_ext_working'}) {
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| 164 | eval "\$self->${autoPackage}::deinit()";
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| 165 | }
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| 166 | $self->SUPER::deinit();
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| 167 | }
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| 168 |
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| 169 | # if the dynamically loaded Converter plugins is working, and scripting is on,, then call its convert
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| 170 | # method, otherwise fall back to ConvertBinaryFile method.
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| 171 |
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| 172 | sub tmp_area_convert_file {
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| 173 | my $self = shift (@_);
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| 174 | my ($output_ext, $input_filename, $textref) = @_;
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| 175 | my $autoPackage = $self->{'_autoPackage'};
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| 176 | my $autoVar = $self->{'_autoVar'};
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| 177 | my $autoName = $self->{'_autoName'};
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| 178 |
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| 179 | if ($self->{'scripting_ext_working'} && $self->{"${autoVar}_scripting"}) {
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| 180 | my ($result, $result_str, $new_filename)
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| 181 | = eval "\$self->${autoPackage}::convert(\$input_filename, \$output_ext);";
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| 182 | if ($result != 0) {
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| 183 | return $new_filename;
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| 184 | }
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| 185 | my $outhandle=$self->{'outhandle'};
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| 186 | print $outhandle "$autoName Conversion error\n";
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| 187 | print $outhandle $result_str;
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| 188 | return "";
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| 189 | }
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| 190 | else {
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| 191 | return $self->ConvertBinaryFile::tmp_area_convert_file(@_);
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| 192 | }
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| 193 | }
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