1 | ###############################################################################
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2 | #
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3 | # GDBM.pm -- utility functions for writing to gdbm databases
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4 | #
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5 | # A component of the Greenstone digital library software from the New Zealand
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6 | # Digital Library Project at the University of Waikato, New Zealand.
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7 | #
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8 | # Copyright (C) 1999-2015 New Zealand Digital Library Project
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9 | #
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10 | # This program is free software; you can redistribute it and/or modify it under
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11 | # the terms of the GNU General Public License as published by the Free Software
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12 | # Foundation; either version 2 of the License, or (at your option) any later
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13 | # version.
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14 | #
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15 | # This program is distributed in the hope that it will be useful, but WITHOUT
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16 | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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17 | # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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18 | # more details.
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19 | #
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20 | # You should have received a copy of the GNU General Public License along with
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21 | # this program; if not, write to the Free Software Foundation, Inc., 675 Mass
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22 | # Ave, Cambridge, MA 02139, USA.
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23 | #
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24 | ###############################################################################
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25 |
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26 | package DBDrivers::GDBM;
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27 |
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28 | # Pragma
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29 | use strict;
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30 |
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31 | # Libraries
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32 | use util;
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33 | use FileUtils;
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34 | use DBDrivers::70HyphenFormat;
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35 |
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36 |
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37 | BEGIN
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38 | {
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39 | if (!defined $ENV{'GSDLHOME'} || !defined $ENV{'GSDLOS'}) {
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40 | die("Error! Environment not prepared. Have you sourced setup.bash?\n");
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41 | }
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42 | @DBDrivers::GDBM::ISA = ('DBDrivers::70HyphenFormat');
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43 | }
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44 |
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45 |
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46 | ## @function constructor
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47 | #
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48 | sub new
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49 | {
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50 | my $class = shift(@_);
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51 | my $self = DBDrivers::70HyphenFormat->new(@_);
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52 | $self->{'default_file_extension'} = 'gdb';
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53 | # note: file separator agnostic
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54 | $self->{'executable_path'} = FileUtils::filenameConcatenate($ENV{'GSDLHOME'}, 'bin', $ENV{'GSDLOS'});
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55 | $self->{'read_executable'} = 'db2txt';
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56 | $self->{'keyread_executable'} = 'gdbmkeys';
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57 | $self->{'write_executable'} = 'txt2db';
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58 | # Optional Support
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59 | $self->{'supports_set'} = 1;
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60 | bless($self, $class);
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61 | return $self;
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62 | }
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63 | ## new(void) => GDBM ##
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64 |
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65 |
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66 | # -----------------------------------------------------------------------------
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67 | # GDBM IMPLEMENTATION
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68 | # -----------------------------------------------------------------------------
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69 |
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70 | # Handled by BaseDBDriver
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71 | # sub get_infodb_file_path(string, string) => string
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72 | # sub rename_db_file_to(string, string) => void
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73 | # sub remove_db_file(string) => void
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74 |
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75 | # Handled by 70HyphenFormat
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76 | # sub open_infodb_write_handle(string, string?) => filehandle
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77 | # sub close_infodb_write_handle(filehandle) => void
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78 | # sub delete_infodb_entry(filehandle, string) => void
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79 | # sub read_infodb_entry(string, string) => hashmap
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80 | # sub read_infodb_file(string, hashmap) => void
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81 | # sub read_infodb_keys(string, hashmap) => void
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82 | # sub read_infodb_rawentry(string, string) => string
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83 | # sub set_infodb_entry(string, string, hashmap) => integer
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84 | # sub write_infodb_entry(filehandle, string, hashmap) => void
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85 | # sub write_infodb_rawentry(filehandle, string, string) => void
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86 |
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87 | 1;
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