Improve collection reference caching and remove legacy maps

lib/Alchemy/Phrasea/Collection/Reference/ArrayCacheCollectionReferenceRepository.php

@@ -0,0 +1,110 @@
+<?php
+
+namespace Alchemy\Phrasea\Collection\Reference;
+
+class ArrayCacheCollectionReferenceRepository implements CollectionReferenceRepository
+{
+    /**
+     * @var CollectionReferenceRepository
+     */
+    private $repository;
+
+    /**
+     * @var null|array
+     */
+    private $referenceCache = null;
+
+    public function __construct(CollectionReferenceRepository $referenceRepository)
+    {
+        $this->repository = $referenceRepository;
+    }
+
+    /**
+     * @return CollectionReference[]
+     */
+    public function findAll()
+    {
+        if ($this->referenceCache === null) {
+            $this->referenceCache = $this->repository->findAll();
+        }
+
+        return $this->referenceCache;
+    }
+
+    /**
+     * @param int $databoxId
+     * @return CollectionReference[]
+     */
+    public function findAllByDatabox($databoxId)
+    {
+        $references = $this->findAll();
+        $found = array();
+
+        foreach ($references as $reference) {
+            if ($reference->getDataboxId() == $databoxId) {
+                $found[$reference->getBaseId()] = $reference;
+            }
+        }
+
+        return $found;
+    }
+
+    /**
+     * @param int $baseId
+     * @return CollectionReference|null
+     */
+    public function find($baseId)
+    {
+        $references = $this->findAll();
+
+        if (isset($references[$baseId])) {
+            return $references[$baseId];
+        }
+
+        return null;
+    }
+
+    /**
+     * @param int $databoxId
+     * @param int $collectionId
+     * @return CollectionReference|null
+     */
+    public function findByCollectionId($databoxId, $collectionId)
+    {
+        $references = $this->findAll();
+
+        foreach ($references as $reference) {
+            if ($reference->getCollectionId() == $collectionId) {
+                return $reference;
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * @param CollectionReference $reference
+     * @return void
+     */
+    public function save(CollectionReference $reference)
+    {
+        $this->repository->save($reference);
+
+        if ($this->referenceCache !== null) {
+            $this->referenceCache[$reference->getBaseId()] = $reference;
+        }
+    }
+
+    /**
+     * @param CollectionReference $reference
+     * @return void
+     */
+    public function delete(CollectionReference $reference)
+    {
+        $this->repository->delete($reference);
+
+        if ($this->referenceCache !== null) {
+            unset($this->referenceCache[$reference->getBaseId()]);
+        }
+    }
+}