NAME¶
UDDI::Lite - Library for UDDI clients in Perl
SYNOPSIS¶
use UDDI::Lite;
print UDDI::Lite
-> proxy('http://uddi.microsoft.com/inquire')
-> find_business(name => 'old')
-> result
-> businessInfos->businessInfo->serviceInfos->serviceInfo->name;
The same code with autodispatch:
use UDDI::Lite +autodispatch =>
proxy => 'http://uddi.microsoft.com/inquire'
;
print find_business(name => 'old')
-> businessInfos->businessInfo->serviceInfos->serviceInfo->name;
Or with importing:
use UDDI::Lite
'UDDI::Lite' => [':inquiry'],
proxy => 'http://uddi.microsoft.com/inquire'
;
print find_business(name => 'old')
-> businessInfos->businessInfo->serviceInfos->serviceInfo->name;
Publishing API:
use UDDI::Lite
import => ['UDDI::Data'],
import => ['UDDI::Lite'],
proxy => "https://some.server.com/endpoint_fot_publishing_API";
my $auth = get_authToken({userID => 'USERID', cred => 'CRED'})->authInfo;
my $busent = with businessEntity =>
name("Contoso Manufacturing"),
description("We make components for business"),
businessKey(''),
businessServices with businessService =>
name("Buy components"),
description("Bindings for buying our components"),
serviceKey(''),
bindingTemplates with bindingTemplate =>
description("BASDA invoices over HTTP post"),
accessPoint('http://www.contoso.com/buy.asp'),
bindingKey(''),
tModelInstanceDetails with tModelInstanceInfo =>
description('some tModel'),
tModelKey('UUID:C1ACF26D-9672-4404-9D70-39B756E62AB4')
;
print save_business($auth, $busent)->businessEntity->businessKey;
DESCRIPTION¶
UDDI::Lite for Perl is a collection of Perl modules which provides a simple and
lightweight interface to the Universal Description, Discovery and Integration
(UDDI) server.
To learn more about UDDI, visit
http://www.uddi.org/.
The main features of the library are:
- •
- Supports both inquiry and publishing API
- •
- Builded on top of SOAP::Lite module, hence inherited syntax
and features
- •
- Supports easy-to-use interface with convenient access to
(sub)elements and attributes
- •
- Supports HTTPS protocol
- •
- Supports SMTP protocol
- •
- Supports Basic/Digest server authentication
OVERVIEW OF CLASSES AND PACKAGES¶
This table should give you a quick overview of the classes provided by the
library.
UDDI::Lite.pm
-- UDDI::Lite -- Main class provides all logic
-- UDDI::Data -- Provides extensions for serialization architecture
-- UDDI::Serializer -- Serializes data structures to UDDI/SOAP package
-- UDDI::Deserializer -- Deserializes result into objects
-- UDDI::SOM -- Provides access to deserialized object tree
UDDI::Lite¶
All methods that UDDI::Lite gives you access to can be used for both setting and
retrieving values. If you provide no parameters, you'll get current value, and
if you'll provide parameter(s), new value will be assigned and method will
return object (if not stated something else). This is suitable for stacking
these calls like:
$uddi = UDDI::Lite
-> on_debug(sub{print@_})
-> proxy('http://uddi.microsoft.com/inquire')
;
Order is insignificant and you may call
new() method first. If you don't
do it, UDDI::Lite will do it for you. However,
new() method gives you
additional syntax:
$uddi = new UDDI::Lite
on_debug => sub {print@_},
proxy => 'http://uddi.microsoft.com/inquire'
;
new() accepts hash with method names and values, and will call
appropriate method with passed value.
Since
new() is optional it won't be mentioned anymore.
Other available methods inherited from SOAP::Lite and most usable are:
- proxy()
- Shortcut for "transport->proxy()". This lets
you specify an endpoint and also loads the required module at the same
time. It is required for dispatching SOAP calls. The name of the module
will be defined depending on the protocol specific for the endpoint.
SOAP::Lite will do the rest work.
- on_fault()
- Lets you specify handler for on_fault event. Default
behavior is die on transport error and does nothing on others. You can
change this behavior globally or locally, for particular object.
- on_debug()
- Lets you specify handler for on_debug event. Default
behavior is do nothing. Use +trace/+debug option for UDDI::Lite
instead.
To change to UDDI Version 2, use the following pragma:
use UDDI::Lite uddiversion => 2;
UDDI::Data¶
You can use this class if you want to specify value and name for UDDI elements.
For example, "UDDI::Data->name('businessInfo')->value(123)"
will be serialized to
"<businessInfo>123</businessInfo>", as well as
"UDDI::Data-"name(businessInfo => 123)>.
If you want to provide names for your parameters you can either specify
find_business(name => 'old')
or do it with UDDI::Data:
find_business(UDDI::Data->name(name => 'old'))
Later has some advantages: it'll work on any level, so you can do:
find_business(UDDI::Data->name(name => UDDI::Data->name(subname => 'old')))
and also you can create arrays with this syntax:
find_business(UDDI::Data->name(name =>
[UDDI::Data->name(subname1 => 'name1'),
UDDI::Data->name(subname2 => 'name2')]))
will be serialized into:
<find_business xmlns="urn:uddi-org:api" generic="1.0">
<name>
<subname1>name1</subname1>
<subname2>name2</subname2>
</name>
</find_business>
For standard elements more convenient syntax is available:
find_business(
findQualifiers(findQualifier('sortByNameAsc',
'caseSensitiveMatch')),
name('M')
)
and
find_business(
findQualifiers([findQualifier('sortByNameAsc'),
findQualifier('caseSensitiveMatch')]),
name('M')
)
both will generate:
<SOAP-ENV:Envelope
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Body>
<find_business xmlns="urn:uddi-org:api" generic="1.0">
<findQualifiers>
<findQualifier>sortByNameAsc</findQualifier>
<findQualifier>caseSensitiveMatch</findQualifier>
</findQualifiers>
<name>M</name>
</find_business>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
You can use ANY valid combinations (according to "UDDI Programmer's API
Specification"). If you try to generate something unusual, like
"name(name('myname'))", you'll get:
Don't know what to do with 'name' and 'name' elements ....
If you REALLY need to do it, use "UDDI::Data" syntax described above.
As special case you can pass hash as the first parameter of method call and
values of this hash will be added as attributes to top element:
find_business({maxRows => 10}, UDDI::Data->name(name => old))
gives you
<find_business xmlns="urn:uddi-org:api" generic="1.0" maxRows="10">
....
</find_business>
You can also pass back parameters exactly as you get it from method call (like
you probably want to do with authInfo).
You can get access to attributes and elements through the same interface:
my $list = find_business(name => old);
my $bis = $list->businessInfos;
for ($bis->businessInfo) {
my $s = $_->serviceInfos->serviceInfo;
print $s->name, # element
$s->businessKey, # attribute
"\n";
}
To match advantages provided by "with" operator available in other
languages (like VB) we provide similar functionality that adds you
flexibility:
with findQualifiers =>
findQualifier => 'sortByNameAsc',
findQualifier => 'caseSensitiveMatch'
is the same as:
with(findQualifiers =>
findQualifier('sortByNameAsc'),
findQualifier('caseSensitiveMatch'),
)
and:
findQualifiers->with(
findQualifier('sortByNameAsc'),
findQualifier('caseSensitiveMatch'),
)
will all generate the same code as mentioned above:
findQualifiers(findQualifier('sortByNameAsc',
'caseSensitiveMatch')),
Advantage of "with" syntax is the you can specify both attributes and
elements through the same interface. First argument is element where all other
elements and attributes will be attached. Provided examples and tests cover
different syntaxes.
AUTODISPATCHING¶
UDDI::Lite provides autodispatching feature that lets you create code that looks
similar for local and remote access.
For example:
use UDDI::Lite +autodispatch =>
proxy => 'http://uddi.microsoft.com/inquire';
tells autodispatch all UDDI calls to '
http://uddi.microsoft.com/inquire'. All
subsequent calls can look like:
find_business(name => 'old');
find_business(UDDI::Data->name(name => 'old'));
find_business(name('old'));
BUGS AND LIMITATIONS¶
- •
- Interface is still subject to change.
- •
- Though HTTPS/SSL is supported you should specify it
yourself (with "proxy" or "endpoint") for publishing
API calls.
AVAILABILITY¶
For now UDDI::Lite is distributed as part of SOAP::Lite package. You can
download it from (
http://soaplite.com/ ) or from CPAN (
http://search.cpan.org/search?dist=SOAP-Lite ).
SEE ALSO¶
SOAP::Lite (
http://search.cpan.org/search?dist=SOAP-Lite ) UDDI (
http://search.cpan.org/search?dist=UDDI )
COPYRIGHT¶
Copyright (C) 2000-2004 Paul Kulchenko. All rights reserved.
This library is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
AUTHOR¶
Paul Kulchenko (paulclinger@yahoo.com)