8b2fee5c16
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@545 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
1683 lines
41 KiB
Perl
1683 lines
41 KiB
Perl
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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#Note that at the moment it only implements SQLite. This will probably be extended.
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#Also, ugly perl errors/and warnings are not currently wrapped. This probably will be cleaned
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#up
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#Some known weird behaviors
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#creating new sqlite db files when only requested to read non-existant table, easy to fix,
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#but going for prototype
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#class xcattable
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package xCAT::Table;
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use Sys::Syslog;
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BEGIN
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{
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$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : -d '/opt/xcat' ? '/opt/xcat' : '/usr';
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}
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use lib "$::XCATROOT/lib/perl";
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use DBI;
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#use strict;
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use Data::Dumper;
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use Scalar::Util qw/weaken/;
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use xCAT::Schema;
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use xCAT::NodeRange;
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use Text::Balanced qw(extract_bracketed);
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use xCAT::NotifHandler;
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#--------------------------------------------------------------------------------
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=head1 xCAT::Table
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xCAT::Table - Perl module for xCAT configuration access
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=head2 SYNOPSIS
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use xCAT::Table;
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my $table = xCAT::Table->new("tablename");
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my $hashref=$table->getNodeAttribs("nodename","columname1","columname2");
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printf $hashref->{columname1};
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=head2 DESCRIPTION
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This module provides convenience methods that abstract the backend specific configuration to a common API.
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Currently implements the preferred SQLite backend, as well as a CSV backend, using their respective perl DBD modules.
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NOTES
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The CSV backend is really slow at scale. Room for optimization is likely, but in general DBD::CSV is slow, relative to xCAT 1.2.x.
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The SQLite backend, on the other hand, is significantly faster on reads than the xCAT 1.2.x way, so it is recommended.
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BUGS
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This module is not thread-safe, due to underlying DBD thread issues. Specifically in testing, SQLite DBD leaks scalars if a thread
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where a Table object exists spawns a child and that child exits. The recommended workaround for now is to spawn a thread to contain
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all Table objects if you intend to spawn threads from your main thread. As long as no thread in which the new method is called spawns
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child threads, it seems to work fine.
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AUTHOR
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Jarrod Johnson <jbjohnso@us.ibm.com>
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xCAT::Table is released under an IBM license....
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=cut
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#--------------------------------------------------------------------------
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=head2 Subroutines
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=cut
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#--------------------------------------------------------------------------
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=head3 buildcreatestmt
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Description: Build create table statement ( see new)
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Arguments:
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Table name
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Table schema ( hash of column names)
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Returns:
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Table creation SQL
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Globals:
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Error:
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Example:
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my $str =
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buildcreatestmt($self->{tabname},
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$xCAT::Schema::tabspec{$self->{tabname}});
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=cut
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#--------------------------------------------------------------------------------
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sub buildcreatestmt
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{
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my $tabn = shift;
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my $descr = shift;
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my $retv = "CREATE TABLE $tabn (\n ";
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my $col;
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foreach $col (@{$descr->{cols}})
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{
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$retv .= "$col TEXT";
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if (grep /^$col$/, @{$descr->{required}})
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{
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$retv .= " NOT NULL";
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}
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$retv .= ",\n ";
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}
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$retv .= "PRIMARY KEY (";
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foreach (@{$descr->{keys}})
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{
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$retv .= "$_,";
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}
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$retv =~ s/,$/)\n)/;
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return $retv;
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}
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#--------------------------------------------------------------------------
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=head3 new
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Description: Constructor: Connects to or Creates Database Table
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Arguments: Table name
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0 = Connect to table
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1 = Create table
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Returns:
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Hash: Database Handle, Statement Handle, nodelist
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Globals:
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Error:
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Example:
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$nodelisttab = xCAT::Table->new("nodelist");
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Comments:
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none
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=cut
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#--------------------------------------------------------------------------------
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sub new
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{
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#Constructor takes table name as argument
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#Also takes a true/false value, or assumes 0. If something true is passed, create table
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#is requested
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my $self = {};
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my $proto = shift;
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$self->{tabname} = shift;
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unless (defined($xCAT::Schema::tabspec{$self->{tabname}})) { return undef; }
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$self->{schema} = $xCAT::Schema::tabspec{$self->{tabname}};
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$self->{colnames} = \@{$self->{schema}->{cols}};
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$self->{descriptions} = \%{$self->{schema}->{descriptions}};
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my %otherargs = @_;
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my $create = $otherargs{'-create'}; #(scalar(@_) == 1 ? shift : 0);
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$self->{autocommit} = $otherargs{'-autocommit'};
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unless (defined($self->{autocommit}))
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{
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$self->{autocommit} = 1;
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}
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my $class = ref($proto) || $proto;
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$self->{dbuser}="";
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$self->{dbpass}="";
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my $xcatcfg = (defined $ENV{'XCATCFG'} ? $ENV{'XCATCFG'} : '');
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if ($xcatcfg =~ /^$/)
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{
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if (-d "/opt/xcat/cfg")
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{
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$xcatcfg = "SQLite:/opt/xcat/cfg";
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}
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else
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{
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if (-d "/etc/xcat")
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{
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$xcatcfg = "SQLite:/etc/xcat";
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}
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}
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}
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($xcatcfg =~ /^$/) && die "Can't locate xCAT configuration";
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unless ($xcatcfg =~ /:/)
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{
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$xcatcfg = "SQLite:" . $xcatcfg;
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}
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if ($xcatcfg =~ /^SQLite:/)
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{
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$self->{backend_type} = 'sqlite';
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my @path = split(':', $xcatcfg, 2);
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unless (-e $path[1] . "/" . $self->{tabname} . ".sqlite" || $create)
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{
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return undef;
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}
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$self->{connstring} =
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"dbi:" . $xcatcfg . "/" . $self->{tabname} . ".sqlite";
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}
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elsif ($xcatcfg =~ /^CSV:/)
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{
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$self->{backend_type} = 'csv';
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$xcatcfg =~ m/^.*?:(.*)$/;
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my $path = $1;
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$self->{connstring} = "dbi:CSV:f_dir=" . $path;
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}
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else #Generic DBI
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{
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($self->{connstring},$self->{dbuser},$self->{dbpass}) = split(/\|/,$xcatcfg);
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$self->{connstring} =~ s/^dbi://;
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$self->{connstring} =~ s/^/dbi:/;
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#return undef;
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}
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unless ($::XCAT_DBHS->{$self->{connstring},$self->{dbuser},$self->{dbpass},$self->{autocommit}}) { #= $self->{tabname};
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$::XCAT_DBHS->{$self->{connstring},$self->{dbuser},$self->{dbpass},$self->{autocommit}} =
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DBI->connect($self->{connstring}, $self->{dbuser}, $self->{dbpass}, {AutoCommit => $self->{autocommit}});
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}
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$self->{dbh} = $::XCAT_DBHS->{$self->{connstring},$self->{dbuser},$self->{dbpass},$self->{autocommit}};
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#DBI->connect($self->{connstring}, $self->{dbuser}, $self->{dbpass}, {AutoCommit => $autocommit});
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if ($xcatcfg =~ /^SQLite:/)
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{
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my $dbexistq =
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"SELECT name from sqlite_master WHERE type='table' and name = ?";
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my $sth = $self->{dbh}->prepare($dbexistq);
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$sth->execute($self->{tabname});
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my $result = $sth->fetchrow();
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$sth->finish;
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unless (defined $result)
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{
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if ($create)
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{
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my $str =
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buildcreatestmt($self->{tabname},
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$xCAT::Schema::tabspec{$self->{tabname}});
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$self->{dbh}->do($str);
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}
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else { return undef; }
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}
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}
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elsif ($xcatcfg =~ /^CSV:/)
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{
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$self->{dbh}->{'csv_tables'}->{$self->{tabname}} =
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{'file' => $self->{tabname} . ".csv"};
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$xcatcfg =~ m/^.*?:(.*)$/;
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my $path = $1;
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if (!-e $path . "/" . $self->{tabname} . ".csv")
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{
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unless ($create)
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{
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return undef;
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}
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my $str =
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buildcreatestmt($self->{tabname},
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$xCAT::Schema::tabspec{$self->{tabname}});
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$self->{dbh}->do($str);
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}
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} else { #generic DBI
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my $tbexistq = $self->{dbh}->table_info('','',$self->{tabname},'TABLE');
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my $found = 0;
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while (my $data = $tbexistq->fetchrow_hashref) {
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if ($data->{'TABLE_NAME'} =~ /^\"?$self->{tabname}\"?\z/) {
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$found = 1;
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last;
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}
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}
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unless ($found) {
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unless ($create)
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{
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return undef;
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}
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my $str =
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buildcreatestmt($self->{tabname},
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$xCAT::Schema::tabspec{$self->{tabname}});
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$self->{dbh}->do($str);
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}
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}
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updateschema($self);
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if ($self->{tabname} eq 'nodelist')
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{
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weaken($self->{nodelist} = $self);
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}
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else
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{
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$self->{nodelist} = xCAT::Table->new('nodelist',-create=>1);
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}
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bless($self, $class);
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return $self;
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}
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#--------------------------------------------------------------------------
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=head3 updateschema
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Description: Alters table schema
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Arguments: Hash containing Database and Table Handle and schema
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Returns: None
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Globals:
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Error:
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Example:
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$self->{tabname} = shift;
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$self->{schema} = $xCAT::Schema::tabspec{$self->{tabname}};
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$self->{colnames} = \@{$self->{schema}->{cols}};
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updateschema($self);
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Comments:
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none
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=cut
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#--------------------------------------------------------------------------------
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sub updateschema
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{
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#This determines alter table statements required..
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my $self = shift;
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my @columns;
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if ($self->{backend_type} eq 'sqlite')
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{
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my $dbexistq =
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"SELECT sql from sqlite_master WHERE type='table' and name = ?";
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my $sth = $self->{dbh}->prepare($dbexistq);
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$sth->execute($self->{tabname});
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my $cstmt = $sth->fetchrow();
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$sth->finish;
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#my $cstmt = $result->{sql};
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$cstmt =~ s/.*\(//;
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$cstmt =~ s/\)$//;
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my @entries = split /,/, $cstmt;
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foreach (@entries)
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{
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unless (/\(/)
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{ #Filter out the PRIMARY KEY statement, but not if on a col
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my $colname = $_;
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$colname =~ s/^\s*(\S+)\s+.*\s*$/$1/
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; #I don't understand why it won't work otherwise for " colname TEXT "
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push @columns, $colname;
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}
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}
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} else { #Attempt generic dbi..
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my $sth = $self->{dbh}->column_info('','',$self->{tabname},'');
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while (my $cd = $sth->fetchrow_hashref) {
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push @columns,$cd->{'COLUMN_NAME'};
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}
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foreach (@columns) { #Column names may end up quoted by database engin
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s/"//g;
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}
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}
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#Now @columns reflects the *actual* columns in the database
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my $dcol;
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foreach $dcol (@{$self->{colnames}})
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{
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unless (grep /^$dcol$/, @columns)
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{
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#TODO: log/notify of schema upgrade?
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my $stmt =
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"ALTER TABLE " . $self->{tabname} . " ADD $dcol TEXT";
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$self->{dbh}->do($stmt);
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}
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}
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}
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#--------------------------------------------------------------------------
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=head3 setNodeAttribs
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Description: Set attributes values on the node input to the routine
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Arguments:
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Hash: Database Handle, Statement Handle, nodelist
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Node name
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Attribute hash
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Returns:
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Globals:
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Error:
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Example:
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my $mactab = xCAT::Table->new('mac',-create=>1);
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$mactab->setNodeAttribs($node,{mac=>$mac});
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$mactab->close();
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Comments:
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none
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=cut
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#--------------------------------------------------------------------------------
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sub setNodeAttribs
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{
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my $self = shift;
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my $node = shift;
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return $self->setAttribs({'node' => $node}, @_);
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}
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#--------------------------------------------------------------------------
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=head3 addNodeAttribs
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Description: Add new attributes input to the routine to the nodes
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Arguments:
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Hash of new attributes
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Returns:
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Globals:
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Error:
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Example:
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Comments:
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none
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=cut
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#--------------------------------------------------------------------------------
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sub addNodeAttribs
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{
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my $self = shift;
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return $self->addAttribs('node', @_);
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}
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#--------------------------------------------------------------------------
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=head3 addAttribs
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Description: add new attributes
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Arguments:
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Hash: Database Handle, Statement Handle, nodelist
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Key name
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Key value
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Hash reference of column-value pairs to set
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Returns:
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Globals:
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Error:
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Example:
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Comments:
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none
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=cut
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#--------------------------------------------------------------------------------
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sub addAttribs
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{
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my $self = shift;
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my $key = shift;
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my $keyval = shift;
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my $elems = shift;
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my $cols = "";
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my @bind = ();
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@bind = ($keyval);
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$cols = "$key,";
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for my $col (keys %$elems)
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{
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$cols = $cols . $col . ",";
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if (ref($$elems{$col}))
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{
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push @bind, ${$elems}{$col}->[0];
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}
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else
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{
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push @bind, $$elems{$col};
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}
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}
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chop($cols);
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my $qstring = 'INSERT INTO ' . $self->{tabname} . " ($cols) VALUES (";
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for (@bind)
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{
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$qstring = $qstring . "?,";
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}
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$qstring =~ s/,$/)/;
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my $sth = $self->{dbh}->prepare($qstring);
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$sth->execute(@bind);
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#$self->{dbh}->commit;
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#notify the interested parties
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my $notif = xCAT::NotifHandler->needToNotify($self->{tabname}, 'a');
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if ($notif == 1)
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{
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my %new_notif_data;
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$new_notif_data{$key} = $keyval;
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foreach (keys %$elems)
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{
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$new_notif_data{$_} = $$elems{$_};
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}
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xCAT::NotifHandler->notify("a", $self->{tabname}, [0],
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\%new_notif_data);
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}
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}
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#--------------------------------------------------------------------------
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=head3 rollback
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|
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Description: rollback changes
|
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Arguments:
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Database Handle
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Returns:
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none
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|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
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|
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my $tab = xCAT::Table->new($table,-create =>1,-autocommit=>0);
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$tab->rollback();
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|
Comments:
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none
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|
|
=cut
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|
|
|
#--------------------------------------------------------------------------------
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|
sub rollback
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|
{
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my $self = shift;
|
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$self->{dbh}->rollback;
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 commit
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|
|
|
Description:
|
|
Commit changes
|
|
Arguments:
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|
Database Handle
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|
Returns:
|
|
none
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
my $tab = xCAT::Table->new($table,-create =>1,-autocommit=>0);
|
|
$tab->commit();
|
|
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub commit
|
|
{
|
|
my $self = shift;
|
|
$self->{dbh}->commit;
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 setAttribs
|
|
|
|
Description:
|
|
|
|
Arguments:
|
|
Key name
|
|
Key value
|
|
Hash reference of column-value pairs to set
|
|
|
|
Returns:
|
|
None
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
my $tab = xCAT::Table->new( 'ppc', -create=>1, -autocommit=>0 );
|
|
$keyhash{'node'} = $name;
|
|
$updates{'type'} = lc($type);
|
|
$updates{'id'} = $lparid;
|
|
$updates{'hcp'} = $server;
|
|
$updates{'profile'} = $prof;
|
|
$updates{'frame'} = $frame;
|
|
$updates{'mtms'} = "$model*$serial";
|
|
$tab->setAttribs( \%keyhash,\%updates );
|
|
$tab->commit;
|
|
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub setAttribs
|
|
{
|
|
|
|
#Takes three arguments:
|
|
#-Key name
|
|
#-Key value
|
|
#-Hash reference of column-value pairs to set
|
|
my $self = shift;
|
|
my %keypairs = %{shift()};
|
|
|
|
#my $key = shift;
|
|
#my $keyval=shift;
|
|
my $elems = shift;
|
|
my $cols = "";
|
|
my @bind = ();
|
|
my $action;
|
|
my @notif_data;
|
|
my $qstring = "SELECT * FROM " . $self->{tabname} . " WHERE ";
|
|
my @qargs = ();
|
|
foreach (keys %keypairs)
|
|
{
|
|
$qstring .= "$_ = ? AND ";
|
|
push @qargs, $keypairs{$_};
|
|
}
|
|
$qstring =~ s/ AND \z//;
|
|
my $query = $self->{dbh}->prepare($qstring);
|
|
$query->execute(@qargs);
|
|
|
|
#get the first row
|
|
my $data = $query->fetchrow_arrayref();
|
|
if (defined $data)
|
|
{
|
|
$action = "u";
|
|
}
|
|
else
|
|
{
|
|
$action = "a";
|
|
}
|
|
|
|
#prepare the notification data
|
|
my $notif =
|
|
xCAT::NotifHandler->needToNotify($self->{tabname}, $action);
|
|
if ($notif == 1)
|
|
{
|
|
if ($action eq "u")
|
|
{
|
|
|
|
#put the column names at the very front
|
|
push(@notif_data, $query->{NAME});
|
|
|
|
#copy the data out because fetchall_arrayref overrides the data.
|
|
my @first_row = @$data;
|
|
push(@notif_data, \@first_row);
|
|
|
|
#get the rest of the rows
|
|
my $temp_data = $query->fetchall_arrayref();
|
|
foreach (@$temp_data)
|
|
{
|
|
push(@notif_data, $_);
|
|
}
|
|
}
|
|
}
|
|
|
|
$query->finish();
|
|
|
|
if ($action eq "u")
|
|
{
|
|
|
|
#update the rows
|
|
$action = "u";
|
|
for my $col (keys %$elems)
|
|
{
|
|
$cols = $cols . $col . " = ?,";
|
|
push @bind, (($$elems{$col} =~ /NULL/) ? undef: $$elems{$col});
|
|
}
|
|
chop($cols);
|
|
my $cmd = "UPDATE " . $self->{tabname} . " set $cols where ";
|
|
foreach (keys %keypairs)
|
|
{
|
|
if (ref($keypairs{$_}))
|
|
{
|
|
$cmd .= $_ . " = '" . $keypairs{$_}->[0] . "' AND ";
|
|
}
|
|
else
|
|
{
|
|
$cmd .= $_ . " = '" . $keypairs{$_} . "' AND ";
|
|
}
|
|
}
|
|
$cmd =~ s/ AND \z//;
|
|
my $sth = $self->{dbh}->prepare($cmd);
|
|
my $err = $sth->execute(@bind);
|
|
if (not defined($err))
|
|
{
|
|
return (undef, $sth->errstr);
|
|
}
|
|
$sth->finish;
|
|
}
|
|
else
|
|
{
|
|
|
|
#insert the rows
|
|
$action = "a";
|
|
@bind = ();
|
|
$cols = "";
|
|
my %newpairs;
|
|
#first, merge the two structures to a single hash
|
|
foreach (keys %keypairs)
|
|
{
|
|
$newpairs{$_} = $keypairs{$_};
|
|
}
|
|
for my $col (keys %$elems)
|
|
{
|
|
$newpairs{$col} = $$elems{$col};
|
|
}
|
|
foreach (keys %newpairs) {
|
|
$cols .= $_ . ",";
|
|
push @bind, $newpairs{$_};
|
|
}
|
|
chop($cols);
|
|
my $qstring = 'INSERT INTO ' . $self->{tabname} . " ($cols) VALUES (";
|
|
for (@bind)
|
|
{
|
|
$qstring = $qstring . "?,";
|
|
}
|
|
$qstring =~ s/,$/)/;
|
|
my $sth = $self->{dbh}->prepare($qstring);
|
|
my $err = $sth->execute(@bind);
|
|
if (not defined($err))
|
|
{
|
|
return (undef, $sth->errstr);
|
|
}
|
|
$sth->finish;
|
|
}
|
|
|
|
#notify the interested parties
|
|
if ($notif == 1)
|
|
{
|
|
#create new data ref
|
|
my %new_notif_data = %keypairs;
|
|
foreach (keys %$elems)
|
|
{
|
|
$new_notif_data{$_} = $$elems{$_};
|
|
}
|
|
xCAT::NotifHandler->notify($action, $self->{tabname},
|
|
\@notif_data, \%new_notif_data);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 setAttribsWhere
|
|
|
|
Description:
|
|
This function sets the attributes for the rows selected by the where clause.
|
|
Arguments:
|
|
Where clause.
|
|
Hash reference of column-value pairs to set
|
|
Returns:
|
|
None
|
|
Globals:
|
|
Error:
|
|
Example:
|
|
my $tab = xCAT::Table->new( 'ppc', -create=>1, -autocommit=>1 );
|
|
$updates{'type'} = lc($type);
|
|
$updates{'id'} = $lparid;
|
|
$updates{'hcp'} = $server;
|
|
$updates{'profile'} = $prof;
|
|
$updates{'frame'} = $frame;
|
|
$updates{'mtms'} = "$model*$serial";
|
|
$tab->setAttribs( "node in ('node1', 'node2', 'node3')", \%updates );
|
|
Comments:
|
|
none
|
|
=cut
|
|
#--------------------------------------------------------------------------------
|
|
sub setAttribsWhere
|
|
{
|
|
#Takes three arguments:
|
|
#-Where clause
|
|
#-Hash reference of column-value pairs to set
|
|
my $self = shift;
|
|
my $where_clause = shift;
|
|
my $elems = shift;
|
|
my $cols = "";
|
|
my @bind = ();
|
|
my $action;
|
|
my @notif_data;
|
|
my $qstring = "SELECT * FROM " . $self->{tabname} . " WHERE " . $where_clause;
|
|
my @qargs = ();
|
|
my $query = $self->{dbh}->prepare($qstring);
|
|
$query->execute(@qargs);
|
|
|
|
#get the first row
|
|
my $data = $query->fetchrow_arrayref();
|
|
if (defined $data){ $action = "u";}
|
|
else { return (0, "no rows selected."); }
|
|
|
|
#prepare the notification data
|
|
my $notif =
|
|
xCAT::NotifHandler->needToNotify($self->{tabname}, $action);
|
|
if ($notif == 1)
|
|
{
|
|
#put the column names at the very front
|
|
push(@notif_data, $query->{NAME});
|
|
|
|
#copy the data out because fetchall_arrayref overrides the data.
|
|
my @first_row = @$data;
|
|
push(@notif_data, \@first_row);
|
|
#get the rest of the rows
|
|
my $temp_data = $query->fetchall_arrayref();
|
|
foreach (@$temp_data) {
|
|
push(@notif_data, $_);
|
|
}
|
|
}
|
|
|
|
$query->finish();
|
|
|
|
#update the rows
|
|
for my $col (keys %$elems)
|
|
{
|
|
$cols = $cols . $col . " = ?,";
|
|
push @bind, (($$elems{$col} =~ /NULL/) ? undef: $$elems{$col});
|
|
}
|
|
chop($cols);
|
|
my $cmd = "UPDATE " . $self->{tabname} . " set $cols where " . $where_clause;
|
|
my $sth = $self->{dbh}->prepare($cmd);
|
|
my $err = $sth->execute(@bind);
|
|
if (not defined($err))
|
|
{
|
|
return (undef, $sth->errstr);
|
|
}
|
|
|
|
#notify the interested parties
|
|
if ($notif == 1)
|
|
{
|
|
#create new data ref
|
|
my %new_notif_data = ();
|
|
foreach (keys %$elems)
|
|
{
|
|
$new_notif_data{$_} = $$elems{$_};
|
|
}
|
|
xCAT::NotifHandler->notify($action, $self->{tabname},
|
|
\@notif_data, \%new_notif_data);
|
|
}
|
|
$sth->finish;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 getNodeAttribs
|
|
|
|
Description: Retrieves the requested attribute
|
|
|
|
Arguments:
|
|
Table handle
|
|
Noderange
|
|
Attribute type array
|
|
Returns:
|
|
|
|
Attribute hash ( key attribute type)
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
my $ostab = xCAT::Table->new('nodetype');
|
|
my $ent = $ostab->getNodeAttribs($node,['profile','os','arch']);
|
|
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub getNodeAttribs
|
|
{
|
|
my $self = shift;
|
|
my $node = shift;
|
|
my @attribs = @{shift()};
|
|
my $datum;
|
|
my @data = $self->getNodeAttribs_nosub($node, \@attribs);
|
|
#my ($datum, $extra) = $self->getNodeAttribs_nosub($node, \@attribs);
|
|
if ($extra) { return undef; } # return (undef,"Ambiguous query"); }
|
|
defined($data[0])
|
|
|| return undef; #(undef,"No matching entry found in configuration");
|
|
my $attrib;
|
|
foreach $datum (@data) {
|
|
foreach $attrib (@attribs)
|
|
{
|
|
|
|
if ($datum->{$attrib} =~ /^\/.*\/.*\//)
|
|
{
|
|
my $exp = substr($datum->{$attrib}, 1);
|
|
chop $exp;
|
|
my @parts = split('/', $exp, 2);
|
|
$node =~ s/$parts[0]/$parts[1]/;
|
|
$datum->{$attrib} = $node;
|
|
}
|
|
elsif ($datum->{$attrib} =~ /^\|.*\|.*\|$/)
|
|
{
|
|
|
|
#Perform arithmetic and only arithmetic operations in bracketed issues on the right.
|
|
#Tricky part: don't allow potentially dangerous code, only eval if
|
|
#to-be-evaled expression is only made up of ()\d+-/%$
|
|
#Futher paranoia? use Safe module to make sure I'm good
|
|
my $exp = substr($datum->{$attrib}, 1);
|
|
chop $exp;
|
|
my @parts = split('\|', $exp, 2);
|
|
my $curr;
|
|
my $next;
|
|
my $prev;
|
|
my $retval = $parts[1];
|
|
($curr, $next, $prev) =
|
|
extract_bracketed($retval, '()', qr/[^()]*/);
|
|
|
|
while ($curr)
|
|
{
|
|
|
|
#my $next = $comps[0];
|
|
if ($curr =~ /^[\{\}()\-\+\/\%\*\$\d]+$/)
|
|
{
|
|
use integer
|
|
; #We only allow integer operations, they are the ones that make sense for the application
|
|
my $value = $node;
|
|
$value =~ s/$parts[0]/$curr/ee;
|
|
$retval = $prev . $value . $next;
|
|
}
|
|
else
|
|
{
|
|
print "$curr is bad\n";
|
|
}
|
|
($curr, $next, $prev) =
|
|
extract_bracketed($retval, '()', qr/[^()]*/);
|
|
}
|
|
$datum->{$attrib} = $retval;
|
|
|
|
#print Dumper(extract_bracketed($parts[1],'()',qr/[^()]*/));
|
|
#use text::balanced extract_bracketed to parse earch atom, make sure nothing but arith operators, parans, and numbers are in it to guard against code execution
|
|
}
|
|
}
|
|
}
|
|
return wantarray ? @data : $data[0];
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 getNodeAttribs_nosub
|
|
|
|
Description:
|
|
|
|
Arguments:
|
|
|
|
Returns:
|
|
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub getNodeAttribs_nosub
|
|
{
|
|
my $self = shift;
|
|
my $node = shift;
|
|
my $attref = shift;
|
|
my @data;
|
|
my $datum;
|
|
my @tents;
|
|
my $return = 0;
|
|
@tents = $self->getNodeAttribs_nosub_returnany($node, $attref);
|
|
foreach my $tent (@tents) {
|
|
$datum={};
|
|
foreach (@$attref)
|
|
{
|
|
if ($tent and defined($tent->{$_}))
|
|
{
|
|
$return = 1;
|
|
$datum->{$_} = $tent->{$_};
|
|
} else { #attempt to fill in gapped attributes
|
|
my $sent = $self->getNodeAttribs_nosub_returnany($node, [$_]);
|
|
if ($sent and defined($sent->{$_})) {
|
|
$return = 1;
|
|
$datum->{$_} = $sent->{$_};
|
|
}
|
|
}
|
|
}
|
|
push(@data,$datum);
|
|
}
|
|
if ($return)
|
|
{
|
|
return wantarray ? @data : $data[0];
|
|
}
|
|
else
|
|
{
|
|
return undef;
|
|
}
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 getNodeAttribs_nosub_returnany
|
|
|
|
Description:
|
|
|
|
Arguments:
|
|
|
|
Returns:
|
|
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub getNodeAttribs_nosub_returnany
|
|
{ #This is the original function
|
|
my $self = shift;
|
|
my $node = shift;
|
|
my @attribs = @{shift()};
|
|
my @results;
|
|
|
|
#my $recurse = ((scalar(@_) == 1) ? shift : 1);
|
|
@results = $self->getAttribs({node => $node}, @attribs);
|
|
my $data = $results[0];
|
|
if (!defined($data))
|
|
{
|
|
my ($nodeghash) =
|
|
$self->{nodelist}->getAttribs({node => $node}, 'groups');
|
|
unless (defined($nodeghash) && defined($nodeghash->{groups}))
|
|
{
|
|
return undef;
|
|
}
|
|
my @nodegroups = split(/,/, $nodeghash->{groups});
|
|
my $group;
|
|
foreach $group (@nodegroups)
|
|
{
|
|
@results = $self->getAttribs({node => $group}, @attribs);
|
|
$data = $results[0];
|
|
if ($data != undef)
|
|
{
|
|
foreach (@results) {
|
|
if ($_->{node}) { $_->{node} = $node; }
|
|
};
|
|
return @results;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
|
|
#Don't need to 'correct' node attribute, considering result of the if that governs this code block?
|
|
return @results;
|
|
}
|
|
return undef; #Made it here, config has no good answer
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 getAllEntries
|
|
|
|
Description: Read entire table
|
|
|
|
Arguments:
|
|
Table handle
|
|
Returns:
|
|
Hash containing all rows in table
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
|
|
my $tabh = xCAT::Table->new($table);
|
|
my $recs=$tabh->getAllEntries();
|
|
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub getAllEntries
|
|
{
|
|
my $self = shift;
|
|
my @rets;
|
|
my $query = $self->{dbh}->prepare('SELECT * FROM ' . $self->{tabname});
|
|
$query->execute();
|
|
while (my $data = $query->fetchrow_hashref())
|
|
{
|
|
foreach (keys %$data)
|
|
{
|
|
if ($data->{$_} =~ /^$/)
|
|
{
|
|
$data->{$_} = undef;
|
|
}
|
|
}
|
|
push @rets, $data;
|
|
}
|
|
$query->finish();
|
|
return \@rets;
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 getAllAttribsWhere
|
|
|
|
Description: Get all attributes with "where" clause
|
|
|
|
Arguments:
|
|
Database Handle
|
|
Where clause
|
|
Returns:
|
|
Array of attributes
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
$nodelist->getAllAttribsWhere("groups like '%".$atom."%'",'node','group');
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub getAllAttribsWhere
|
|
{
|
|
|
|
#Takes a list of attributes, returns all records in the table.
|
|
my $self = shift;
|
|
my $whereclause = shift;
|
|
my @attribs = @_;
|
|
my @results = ();
|
|
my $query =
|
|
$self->{dbh}->prepare('SELECT * FROM '
|
|
. $self->{tabname}
|
|
. ' WHERE ('
|
|
. $whereclause
|
|
. ") and (\"disable\" is NULL or \"disable\" in ('0','no','NO','no'))");
|
|
$query->execute();
|
|
while (my $data = $query->fetchrow_hashref())
|
|
{
|
|
my %newrow = ();
|
|
foreach (@attribs)
|
|
{
|
|
unless ($data->{$_} =~ /^$/ || !defined($data->{$_}))
|
|
{ #The reason we do this is to undef fields in rows that may still be returned..
|
|
$newrow{$_} = $data->{$_};
|
|
}
|
|
}
|
|
if (keys %newrow)
|
|
{
|
|
push(@results, \%newrow);
|
|
}
|
|
}
|
|
$query->finish();
|
|
return @results;
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 getAllNodeAttribs
|
|
|
|
Description: Get all the node attributes values for the input table on the
|
|
attribute list
|
|
|
|
Arguments:
|
|
Table handle
|
|
Attribute list
|
|
Returns:
|
|
Array of attribute values
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
my @entries = $self->{switchtab}->getAllNodeAttribs(['port','switch']);
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub getAllNodeAttribs
|
|
{
|
|
|
|
#Extract and substitute every node record, expanding groups and substituting as getNodeAttribs does
|
|
my $self = shift;
|
|
my $attribq = shift;
|
|
my @results = ();
|
|
my %donenodes
|
|
; #Remember those that have been done once to not return same node multiple times
|
|
my $query =
|
|
$self->{dbh}->prepare('SELECT node FROM '
|
|
. $self->{tabname}
|
|
. " WHERE \"disable\" is NULL or \"disable\" in ('','0','no','NO','no')");
|
|
$query->execute();
|
|
while (my $data = $query->fetchrow_hashref())
|
|
{
|
|
|
|
unless ($data->{node} =~ /^$/ || !defined($data->{node}))
|
|
{ #ignore records without node attrib, not possible?
|
|
my @nodes =
|
|
noderange($data->{node})
|
|
; #expand node entry, to make groups expand
|
|
foreach (@nodes)
|
|
{
|
|
if ($donenodes{$_}) { next; }
|
|
my $attrs;
|
|
my $nde = $_;
|
|
|
|
#if ($self->{giveand}) { #software requests each attribute be independently inherited
|
|
# foreach (@attribs) {
|
|
# my $attr = $self->getNodeAttribs($nde,$_);
|
|
# $attrs->{$_}=$attr->{$_};
|
|
# }
|
|
#} else {
|
|
my @attrs =
|
|
$self->getNodeAttribs($_, $attribq)
|
|
; #Logic moves to getNodeAttribs
|
|
#}
|
|
#populate node attribute by default, this sort of expansion essentially requires it.
|
|
#$attrs->{node} = $_;
|
|
foreach my $att (@attrs) {
|
|
$att->{node} = $_;
|
|
}
|
|
$donenodes{$_} = 1;
|
|
push @results, @attrs; #$self->getNodeAttribs($_,@attribs);
|
|
}
|
|
}
|
|
}
|
|
$query->finish();
|
|
return @results;
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 getAllAttribs
|
|
|
|
Description: Returns a list of records in the input table for the input
|
|
list of attributes.
|
|
|
|
Arguments:
|
|
Table handle
|
|
List of attributes
|
|
Returns:
|
|
Array of attribute values
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
$nodelisttab = xCAT::Table->new("nodelist");
|
|
my @attribs = ("node");
|
|
@nodes = $nodelisttab->getAllAttribs(@attribs);
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub getAllAttribs
|
|
{
|
|
|
|
#Takes a list of attributes, returns all records in the table.
|
|
my $self = shift;
|
|
my @attribs = @_;
|
|
my @results = ();
|
|
my $query =
|
|
$self->{dbh}->prepare('SELECT * FROM '
|
|
. $self->{tabname}
|
|
. " WHERE \"disable\" is NULL or \"disable\" in ('','0','no','NO','no')");
|
|
$query->execute();
|
|
while (my $data = $query->fetchrow_hashref())
|
|
{
|
|
my %newrow = ();
|
|
foreach (@attribs)
|
|
{
|
|
unless ($data->{$_} =~ /^$/ || !defined($data->{$_}))
|
|
{ #The reason we do this is to undef fields in rows that may still be returned..
|
|
$newrow{$_} = $data->{$_};
|
|
}
|
|
}
|
|
if (keys %newrow)
|
|
{
|
|
push(@results, \%newrow);
|
|
}
|
|
}
|
|
$query->finish();
|
|
return @results;
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 delEntries
|
|
|
|
Description: Delete table entries
|
|
|
|
Arguments:
|
|
Table Handle
|
|
Entry to delete
|
|
Returns:
|
|
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
my $table=xCAT::Table->new("notification", -create => 1,-autocommit => 0);
|
|
my %key_col = (filename=>$fname);
|
|
$table->delEntries(\%key_col);
|
|
$table->commit;
|
|
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub delEntries
|
|
{
|
|
my $self = shift;
|
|
my $keyref = shift;
|
|
my %keypairs;
|
|
if ($keyref)
|
|
{
|
|
%keypairs = %{$keyref};
|
|
}
|
|
|
|
my $notif = xCAT::NotifHandler->needToNotify($self->{tabname}, 'd');
|
|
my @notif_data;
|
|
if ($notif == 1)
|
|
{
|
|
my $qstring = "SELECT * FROM " . $self->{tabname};
|
|
if ($keyref) { $qstring .= " WHERE "; }
|
|
my @qargs = ();
|
|
foreach (keys %keypairs)
|
|
{
|
|
$qstring .= "$_ = ? AND ";
|
|
push @qargs, $keypairs{$_};
|
|
}
|
|
$qstring =~ s/ AND \z//;
|
|
my $query = $self->{dbh}->prepare($qstring);
|
|
$query->execute(@qargs);
|
|
|
|
#prepare the notification data
|
|
#put the column names at the very front
|
|
push(@notif_data, $query->{NAME});
|
|
my $temp_data = $query->fetchall_arrayref();
|
|
foreach (@$temp_data)
|
|
{
|
|
push(@notif_data, $_);
|
|
}
|
|
$query->finish();
|
|
}
|
|
|
|
my @stargs = ();
|
|
my $delstring = 'DELETE FROM ' . $self->{tabname};
|
|
if ($keyref) { $delstring .= ' WHERE '; }
|
|
foreach (keys %keypairs)
|
|
{
|
|
$delstring .= $_ . ' = ? AND ';
|
|
if (ref($keypairs{$_}))
|
|
{ #XML transformed data may come in mangled unreasonably into listrefs
|
|
push @stargs, $keypairs{$_}->[0];
|
|
}
|
|
else
|
|
{
|
|
push @stargs, $keypairs{$_};
|
|
}
|
|
}
|
|
$delstring =~ s/ AND \z//;
|
|
my $stmt = $self->{dbh}->prepare($delstring);
|
|
$stmt->execute(@stargs);
|
|
$stmt->finish;
|
|
|
|
#notify the interested parties
|
|
if ($notif == 1)
|
|
{
|
|
xCAT::NotifHandler->notify("d", $self->{tabname}, \@notif_data,
|
|
{});
|
|
}
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 getAttribs
|
|
|
|
Description:
|
|
|
|
Arguments:
|
|
key
|
|
List of attributes
|
|
Returns:
|
|
Hash of requested attributes
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
$table = xCAT::Table->new('passwd');
|
|
@tmp=$table->getAttribs({'key'=>'ipmi'},('username','password');
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub getAttribs
|
|
{
|
|
|
|
#Takes two arguments:
|
|
#-Node name (will be compared against the 'Node' column)
|
|
#-List reference of attributes for which calling code wants at least one of defined
|
|
# (recurse argument intended only for internal use.)
|
|
# Returns a hash reference with requested attributes defined.
|
|
my $self = shift;
|
|
|
|
#my $key = shift;
|
|
#my $keyval = shift;
|
|
my %keypairs = %{shift()};
|
|
my @attribs = @_;
|
|
my @return;
|
|
my $statement = 'SELECT * FROM ' . $self->{tabname} . ' WHERE ';
|
|
my @exeargs;
|
|
foreach (keys %keypairs)
|
|
{
|
|
|
|
if ($keypairs{$_})
|
|
{
|
|
$statement .= "\"".$_ . "\" = ? and ";
|
|
if (ref($keypairs{$_}))
|
|
{ #correct for XML process mangling if occurred
|
|
push @exeargs, $keypairs{$_}->[0];
|
|
}
|
|
else
|
|
{
|
|
push @exeargs, $keypairs{$_};
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$statement .= "$_ is NULL and ";
|
|
}
|
|
}
|
|
$statement .= "(\"disable\" is NULL or \"disable\" in ('0','no','NO','No','nO'))";
|
|
my $query = $self->{dbh}->prepare($statement);
|
|
$query->execute(@exeargs);
|
|
my $data;
|
|
while ($data = $query->fetchrow_hashref())
|
|
{
|
|
my $attrib;
|
|
my %rethash;
|
|
foreach $attrib (@attribs)
|
|
{
|
|
unless ($data->{$attrib} =~ /^$/ || !defined($data->{$attrib}))
|
|
{ #To undef fields in rows that may still be returned
|
|
$rethash{$attrib} = $data->{$attrib};
|
|
}
|
|
}
|
|
if (keys %rethash)
|
|
{
|
|
push @return, \%rethash;
|
|
}
|
|
}
|
|
$query->finish();
|
|
if (@return)
|
|
{
|
|
return wantarray ? @return : $return[0];
|
|
}
|
|
return undef;
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 getTable
|
|
|
|
Description: Read entire Table
|
|
|
|
Arguments:
|
|
Table Handle
|
|
|
|
Returns:
|
|
Array of table rows
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
my $table=xCAT::Table->new("notification", -create =>0);
|
|
my @row_array= $table->getTable;
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub getTable
|
|
{
|
|
|
|
# Get contents of table
|
|
# Takes no arguments
|
|
# Returns an array of hashes containing the entire contents of this
|
|
# table. Each array entry contains a pointer to a hash which is
|
|
# one row of the table. The row hash is keyed by attribute name.
|
|
my $self = shift;
|
|
my @return;
|
|
my $statement = 'SELECT * FROM ' . $self->{tabname};
|
|
my $query = $self->{dbh}->prepare($statement);
|
|
$query->execute();
|
|
my $data;
|
|
while ($data = $query->fetchrow_hashref())
|
|
{
|
|
my $attrib;
|
|
my %rethash;
|
|
foreach $attrib (keys %{$data})
|
|
{
|
|
$rethash{$attrib} = $data->{$attrib};
|
|
}
|
|
if (keys %rethash)
|
|
{
|
|
push @return, \%rethash;
|
|
}
|
|
}
|
|
$query->finish();
|
|
if (@return)
|
|
{
|
|
return @return;
|
|
}
|
|
return undef;
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 close
|
|
|
|
Description: Close out Table transaction
|
|
|
|
Arguments:
|
|
Table Handle
|
|
Returns:
|
|
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
my $mactab = xCAT::Table->new('mac');
|
|
$mactab->setNodeAttribs($macmap{$mac},{mac=>$mac});
|
|
$mactab->close();
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub close
|
|
{
|
|
my $self = shift;
|
|
#if ($self->{dbh}) { $self->{dbh}->disconnect(); }
|
|
#undef $self->{dbh};
|
|
if ($self->{tabname} eq 'nodelist') {
|
|
undef $self->{nodelist};
|
|
} else {
|
|
$self->{nodelist}->close();
|
|
}
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 open
|
|
|
|
Description: Connect to Database
|
|
|
|
Arguments:
|
|
Empty Hash
|
|
Returns:
|
|
Data Base Handle
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub open
|
|
{
|
|
my $self = shift;
|
|
$self->{dbh} = DBI->connect($self->{connstring}, "", "");
|
|
}
|
|
|
|
#--------------------------------------------------------------------------
|
|
|
|
=head3 DESTROY
|
|
|
|
Description: Disconnect from Database
|
|
|
|
Arguments:
|
|
Database Handle
|
|
Returns:
|
|
|
|
Globals:
|
|
|
|
Error:
|
|
|
|
Example:
|
|
|
|
Comments:
|
|
none
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
sub DESTROY
|
|
{
|
|
my $self = shift;
|
|
$self->{dbh} = '';
|
|
undef $self->{dbh};
|
|
#if ($self->{dbh}) { $self->{dbh}->disconnect(); undef $self->{dbh};}
|
|
undef $self->{nodelist}; #Could be circular
|
|
}
|
|
|
|
|
|
=head3 getTableList
|
|
Description: Returns a list of the table names in the xCAT database.
|
|
=cut
|
|
sub getTableList { return keys %xCAT::Schema::tabspec; }
|
|
|
|
|
|
=head3 getTableSchema
|
|
Description: Returns the db schema for the specified table.
|
|
Returns: A reference to a hash that contains the cols, keys, etc. for this table. (See Schema.pm for details.)
|
|
=cut
|
|
sub getTableSchema { return $xCAT::Schema::tabspec{$_[1]}; }
|
|
|
|
|
|
=head3 getTableList
|
|
Description: Returns a summary description for each table.
|
|
Returns: A reference to a hash. Each key is the table name.
|
|
Each value is the table description.
|
|
=cut
|
|
sub getDescriptions {
|
|
my $classname = shift; # we ignore this because this function is static
|
|
# List each table name and the value for table_desc.
|
|
my $ret = {};
|
|
#my @a = keys %{$xCAT::Schema::tabspec{nodelist}}; print 'a=', @a, "\n";
|
|
foreach my $t (keys %xCAT::Schema::tabspec) { $ret->{$t} = $xCAT::Schema::tabspec{$t}->{table_desc}; }
|
|
return $ret;
|
|
}
|
|
|
|
1;
|
|
|