Initial Commit

database/perl/lib/IO/Uncompress/Adapter/Bunzip2.pm

@@ -0,0 +1,111 @@
+package IO::Uncompress::Adapter::Bunzip2;
+
+use strict;
+use warnings;
+use bytes;
+
+use IO::Compress::Base::Common 2.100 qw(:Status);
+
+use Compress::Raw::Bzip2 2.100 ;
+
+our ($VERSION, @ISA);
+$VERSION = '2.100';
+
+sub mkUncompObject
+{
+    my $small     = shift || 0;
+    my $verbosity = shift || 0;
+
+    my ($inflate, $status) = Compress::Raw::Bunzip2->new(1, 1, $small, $verbosity, 1);
+
+    return (undef, "Could not create Inflation object: $status", $status)
+        if $status != BZ_OK ;
+
+    return bless {'Inf'           => $inflate,
+                  'CompSize'      => 0,
+                  'UnCompSize'    => 0,
+                  'Error'         => '',
+                  'ConsumesInput' => 1,
+                 }  ;
+
+}
+
+sub uncompr
+{
+    my $self = shift ;
+    my $from = shift ;
+    my $to   = shift ;
+    my $eof  = shift ;
+
+    my $inf   = $self->{Inf};
+
+    my $status = $inf->bzinflate($from, $to);
+    $self->{ErrorNo} = $status;
+
+    if ($status != BZ_OK && $status != BZ_STREAM_END )
+    {
+        $self->{Error} = "Inflation Error: $status";
+        return STATUS_ERROR;
+    }
+
+
+    return STATUS_OK        if $status == BZ_OK ;
+    return STATUS_ENDSTREAM if $status == BZ_STREAM_END ;
+    return STATUS_ERROR ;
+}
+
+
+sub reset
+{
+    my $self = shift ;
+
+    my ($inf, $status) = Compress::Raw::Bunzip2->new();
+    $self->{ErrorNo} = ($status == BZ_OK) ? 0 : $status ;
+
+    if ($status != BZ_OK)
+    {
+        $self->{Error} = "Cannot create Inflate object: $status";
+        return STATUS_ERROR;
+    }
+
+    $self->{Inf} = $inf;
+
+    return STATUS_OK ;
+}
+
+sub compressedBytes
+{
+    my $self = shift ;
+    $self->{Inf}->compressedBytes();
+}
+
+sub uncompressedBytes
+{
+    my $self = shift ;
+    $self->{Inf}->uncompressedBytes();
+}
+
+sub crc32
+{
+    my $self = shift ;
+    #$self->{Inf}->crc32();
+}
+
+sub adler32
+{
+    my $self = shift ;
+    #$self->{Inf}->adler32();
+}
+
+sub sync
+{
+    my $self = shift ;
+    #( $self->{Inf}->inflateSync(@_) == BZ_OK)
+    #        ? STATUS_OK
+    #        : STATUS_ERROR ;
+}
+
+
+1;
+
+__END__