Add support for finding classes declared in a classmap

src/Classmap/ClassmapEntry.php

@@ -1,16 +1,36 @@
 <?php
 namespace HaydenPierce\ClassFinder\Classmap;
 
-use HaydenPierce\ClassFinder\Exception\ClassFinderException;
-
 class ClassmapEntry
 {
-    private $namespace;
-    private $directories;
+    private $className;
 
-    public function __construct($namespace, $directories)
+    public function __construct($fullyQualifiedClassName)
     {
-        $this->namespace = $namespace;
-        $this->directories = $directories;
+        $this->className = $fullyQualifiedClassName;
     }
+
+    /**
+     * Checks if the class is a DIRECT child of the given namespace. Currently, no other finders support "recursively"
+     * discovering classes, so the Classmap module will not be the exception to that rule.
+     *
+     * @param $namespace
+     * @return bool
+     */
+    public function matches($namespace)
+    {
+        $classNameFragments = explode('\\', $this->getClassName());
+        array_pop($classNameFragments);
+        $classNamespace = implode('\\', $classNameFragments);
+
+        $namespace = trim($namespace, '\\');
+
+        return $namespace === $classNamespace;
+    }
+
+    public function getClassName()
+    {
+        return $this->className;
+    }
+
 }

src/Classmap/ClassmapEntryFactory.php

@@ -2,7 +2,6 @@
 namespace HaydenPierce\ClassFinder\Classmap;
 
 use HaydenPierce\ClassFinder\AppConfig;
-use HaydenPierce\ClassFinder\Exception\ClassFinderException;
 
 class ClassmapEntryFactory
 {
@@ -19,6 +18,13 @@ class ClassmapEntryFactory
      */
     public function getClassmapEntries()
     {
+        // Composer will compile user declared mappings to autoload_classmap.php. So no additional work is needed
+        // to fetch user provided entries.
+        $classmap = require($this->appConfig->getAppRoot() . 'vendor/composer/autoload_classmap.php');
 
+        $classmapKeys = array_keys($classmap);
+        return array_map(function($index) use ($classmapKeys){
+            return new ClassmapEntry($classmapKeys[$index]);
+        }, range(0, count($classmap)));
     }
 }

src/Classmap/ClassmapFinder.php

@@ -19,6 +19,14 @@ class ClassmapFinder implements FinderInterface
      */
     public function findClasses($namespace)
     {
+        $classmapEntries = $this->factory->getClassmapEntries();
 
+        $matchingEntries = array_filter($classmapEntries, function(ClassmapEntry $entry) use ($namespace) {
+            return $entry->matches($namespace);
+        });
+
+        return array_map(function(ClassmapEntry $entry) {
+            return $entry->getClassName();
+        }, $matchingEntries);
     }
 }