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