annotate Lib/Engine/Output/JSON.pm @ 134:44977efed303

Significant performance optimizations Fixed recursion problems due converting objects to JSON Added cache support for the templates Added discovery feature for the web methods
author wizard
date Mon, 21 Jun 2010 02:39:53 +0400
parents 16ada169ca75
children
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1 package Configuration;
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2 our $HtDocsDir;
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3
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4 package Engine;
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5 our $Encoding;
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6
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7 package Engine::Output::JSON;
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8 use strict;
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9 use warnings;
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10
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11 use Encode;
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12 use PerlIO;
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13 use IMPL::Exception;
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14 use JSON;
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15
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16 sub CTX_TEMPLATE() { 1 }
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17 sub CTX_DATA() { 2 }
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18
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19 my $context = CTX_DATA;
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20 our $Data;
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21
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22 sub template() { $context = CTX_TEMPLATE }
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23 sub data() { $context = CTX_DATA }
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24
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25 sub Print {
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26 my ($class,$query,$action) = @_;
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27
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28 my @path = $action->RequestURI->path_segments;
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29 shift @path;
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30
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31 my $result;
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32
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33 undef $@;
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34 $Data = $action->Result;
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35 eval {
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36 my $fname = $HtDocsDir . join '/', @path;
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37 if ($context == CTX_DATA) {
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38 my $dummy = '';
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39 open my $hstd, ">>", \$dummy or die new IMPL::Exception('Failed to create inmemory stream');
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40 local (*STDIN,*STDOUT) = ($hstd,$hstd);
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41 local ${^ENCODING};
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42 $result = do $fname or die new IMPL::Exception('Failed to evalute the file', $@, $!,$fname);
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43 } else {
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44 die new IMPL::Exception('JSON templates not implemented');
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45 }
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46 };
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47 if ($@) {
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48 $result = { errorCode => 1, errorMessage => "$@"};
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49 }
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50
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51 print $query->header(-status => 200, -type => 'text/javascript');
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52 print to_json({ errorCode => 0, result => $result });
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53 }
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54
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55
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56 1;