brenoroosevelt / flex-fqcn-finder
Flexible FQCN Finder
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Requires
- php: ^8
- psr/simple-cache: ^1|^2|^3
Requires (Dev)
- phpstan/phpstan: ^0
- phpunit/phpunit: ^6 || ^9
- squizlabs/php_codesniffer: 3.5.*
Suggests
- symfony/cache: @stable
README
The Flex FQCN Finder allows you to find all the Fully Qualified Class Names (FQCN) available in a project. This package was designed to be flexible and reliable.
Features
- Find classes, traits and interfaces (PSR-4 complaint);
- Search in directories (recursively or not);
- Many filter options;
- Cache (PSR-16 complaint).
- Composite finders.
- Get classes from Composer ClassMap.
Requirements
- The following versions of PHP are supported:
^8
. - For PHP 7.*, please install version 1.0.0
Install
$ composer require brenoroosevelt/flex-fqcn-finder
Usage
Use the FlexFqcnFinder\Fqcn
helper to apply filters, decorators and compositions on your own way.
<?php use FlexFqcnFinder\Fqcn; use FlexFqcnFinder\Filter\Filter; $recursive = true; $fqcns = Fqcn::new() ->addDirectory('/path/to/dir1', $recursive) ->addDirectory('/path/to/dir2', !$recursive) ->withFilter( Filter::by() // or: Filter::anyOf() ->implementsInterface('MyInterface') ->hasMethod('method') ) ->includeDeclaredClasses() ->withCache(new MyPsr16Cache(), 'cacheKey') ->find(); var_dump($fqcns); /* output [ 'NamespaceA\FooClass', 'NamespaceB\BarClass', 'NamespaceC\Traits\HelperTrait' ] */
Finders
Finders are classes that implement interface FqcnFinderInterface
and return a list (array) of FQCNs found.
<?php namespace FlexFqcnFinder; interface FqcnFinderInterface { /** * @return string[] The fully qualified class names found */ public function find(): array; }
This package provides some finders:
FlexFqcnFinder\Finder\FqcnFinder
(find classes, traits and interfaces in a directory)FlexFqcnFinder\Finder\ComposerClassMap
(from Composer autoload classes)FlexFqcnFinder\Finder\GetDeclaredClasses
(fromget_declared_classes()
)FlexFqcnFinder\Finder\GetDeclaredInterfaces
(fromget_declared_interfaces()
)FlexFqcnFinder\Finder\GetDeclaredTraits
(fromget_declared_traits()
)
Composite
You can compose finders using the FlexFqcnFinder\FqcnFinderComposite
:
<?php use FlexFqcnFinder\FqcnFinderComposite; use FlexFqcnFinder\Finder\GetDeclaredClasses; use FlexFqcnFinder\Finder\FqcnFinder; use FlexFqcnFinder\Repository\FilesFromDir; $myFinder = new FqcnFinderComposite( new GetDeclaredClasses(), new FqcnFinder(new FilesFromDir('path/to/dir1')), new FqcnFinder(new FilesFromDir('path/to/dir2')) ); $fqcns = $myFinder->find();
Decorators
Decorators available for Finders:
FlexFqcnFinder\Finder\Decorator\CachedFqcnFinder
FlexFqcnFinder\Finder\Decorator\FilteringFqcnFinder
You can decorate any finder (including compositions):
<?php use FlexFqcnFinder\Finder\Decorator\CachedFqcnFinder; use FlexFqcnFinder\Finder\Decorator\FilteringFqcnFinder; use FlexFqcnFinder\Filter\Specifications\IsSubClassOf; $myFinder = /* any finder, finder composition, ... */; $filtered = new FilteringFqcnFinder( $myFinder, new IsSubClassOf('MyBaseClass') ); // decorating again $cached = new CachedFqcnFinder($filtered, new MyPsr16Cache(), 'cacheKey'); $fqcns = $cached->find();
Filters
Filters can be used as a Decorator for Finders and using it is optional.
All filters have been designed according to the Specification Pattern. You can chain the following filters using Filter::by()
or Filter::anyOf()
:
apply(Closure $fn)
belongsToNamespace(string $namespace)
classNameEndsWith(string $value)
classNameStartsWith(string $value)
hasMethod(string $method)
implementsInterface(string $interface)
isAbstract()
isClass()
isCloneable()
isFinal()
isInstanceOf(string $subject)
isInstantiable()
isInterface()
isInternal()
isIterateable()
isSubClassOf(string $class)
isTrait()
isUserDefined()
namespaceEqualsTo(string $namespace)
not(FqcnSpecification $specification)
useTrait(string $trait)
anyOf(FqcnSpecification ...$specifications)
allOf(FqcnSpecification ...$specifications)
and(FqcnSpecification ...$specifications)
or(FqcnSpecification ...$specifications)
Any filter can be used with FlexFqcnFinder\Finder\Decorator\FilteringFqcnFinder
decorator:
<?php use FlexFqcnFinder\Finder\FqcnFinder; use FlexFqcnFinder\Repository\FilesFromDir; use FlexFqcnFinder\Finder\Decorator\FilteringFqcnFinder; use FlexFqcnFinder\Filter\Specifications\IsSubClassOf; $filtered = new FilteringFqcnFinder( new FqcnFinder(new FilesFromDir(__DIR__)), // first param: decorated Finder new IsSubClassOf('MyBaseClass') // second param: filters to apply ); // Or chaining filters: $filtered = new FilteringFqcnFinder( new FqcnFinder(new FilesFromDir(__DIR__)), Filter::anyOf() ->implementsInterface('MyInterface') ->hasMethod('execute') ->and( Filter::by() ->usingTrait('MyTrait') ->apply(function($fqcn) { return $fqcn === 'my_condition'; }) ) ); $fqcns = $filtered->find();
Creating Filters
You can create you own filter implementing interface FqcnSpecification
:
<?php namespace Foo; use FlexFqcnFinder\Filter\FqcnSpecification; MyFilter implements FqcnSpecification { public function isSatisfiedBy(string $fqcn): bool { return $fqcn === /* ... */; } }
So just use it:
<?php use FlexFqcnFinder\Finder\FqcnFinder; use FlexFqcnFinder\Repository\FilesFromDir; use FlexFqcnFinder\Finder\Decorator\FilteringFqcnFinder; use namespace Foo\MyFilter; $filtered = new FilteringFqcnFinder( new FqcnFinder(new FilesFromDir(__DIR__)), new MyFilter() ); $fqcns = $filtered->find();
Contributing
Please read the Contributing guide to learn about contributing to this project.
License
This project is licensed under the terms of the MIT license. See the LICENSE file for license rights and limitations.