01 Feb 2020 16:51:08 UTC
- Distribution: Data-Serializer
- Module version: 0.05
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- License: perl_5
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- This version
- Latest version++ed by:5 non-PAUSE usersNEELY Neil A. Neelyand 1 contributors
- Neil Neely (firstname.lastname@example.org)
- CONVENTIONS for Raw Access
- Encrypting your data
- Compressing your data
- You want to read in data serialized outside of Data::Serializer
- You want to write serialized data in a form understood outside of Data::Serializer
- You want to convert data between two different serializers native formats
- Keeping data persistent between executions of a program.
- SEE ALSO
Cookbook - Examples of how to use Data::Serializer
Data::Serializer::Cookbook is a collection of solutions for using Data::Serializer.
Unless otherwise specified, all examples can be assumed to begin with:
use Data::Serializer; my $serializer = Data::Serializer->new();
Some examples will show different arguments to the new method, where specified simply use that line instead of the simple form above.
Fort hose who want a straight pass through to the underlying serializer, where nothing else is done (no encoding, encryption, compression, etc) there is Data::Serializer::Raw(3).
These begin like this:
use Data::Serializer::Raw; my $raw_serializer = Data::Serializer::Raw->new();
You wish to encrypt your data structure, so that it can only be decoded by someone who shares the same key.
$serializer->secret('mysecret'); my $encrypted_hashref = $serializer->serializer($hash); ... (in other program) ... $serializer->secret('mysecret'); my $clear_hash = $serializer->deserializer($encrypted_hash);
Note: You will have to have the Crypt::CBC module installed for this to work.
You wish to compress your data structure to cut down on how much disk space it will take up.
$serializer->compress(1); my $compressed_hashref = $serializer->serializer($hash); ... (in other program) ... my $clear_hash = $serializer->deserializer($compressed_hash);
Note: You will have to have the Compress::Zlib module installed for this to work. Your mileage will vary dramatically depending on what serializer you use. Some serializers are already fairly compact.
You need to write a program that can read in data serialized in a format other than Data::Serializer. For example you need to be able to be able to process data serialized by XML::Dumper.
use Data::Serializer::Raw; my $xml_raw_serializer = Data::Serializer::Raw->(serializer => 'XML::Dumper'); my $hash_ref = $xml_raw_serializer->deserialize($xml_data);
You need to write a program that can write out data in a format other than Data::Serializer. Or said more generically you need to write out data in the format native to the underlying serializer. For our example we will be exporting data using XML::Dumper format.
ues Data::Serializer::Raw; my $xml_raw_serializer = Data::Serializer::Raw->(serializer => 'XML::Dumper'); my $xml_data = $xml_raw_serializer->serialize($hash_ref);
You have data serialized by php that you want to convert to xml for use by other programs.
use Data::Serializer::Raw; my $xml_raw_serializer = Data::Serializer::Raw->(serializer => 'XML::Dumper'); my $php_raw_serializer = Data::Serializer::Raw->(serializer => 'PHP::Serialization'); my $hash_ref = $php_raw_serializer->deserialize($php_data); my $xml_data = $xml_raw_serializer->serialize($hash_ref);
You have a program that you run every 10 minutes, it uses SNMP to pull some counters from one of your routers. You want your program to keep the counters from the last run so that it can see how much traffic has passed over a link since it last ran.
# path to store our serialized data # be paranoid, use full paths my $last_run_datafile = '/full/path/to/file/lastrun.data'; #We keep our data as a hash reference my $last_data = $serializer->retrieve($last_run_datafile); #Pull in our new data through 'pull_data()'; my $new_data = query_router($router); #run comparison code run_comparison($last_data,$new_data); $serializer->store($new_data);
Neil Neely <email@example.com>.
Copyright (c) 2001-2011 Neil Neely. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Module Install Instructions
To install Data::Serializer, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell install Data::Serializer
For more information on module installation, please visit the detailed CPAN module installation guide.