--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Translation;
+
+use Symfony\Component\Config\Resource\ResourceInterface;
+
+/**
+ * MessageCatalogue.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class MessageCatalogue implements MessageCatalogueInterface, MetadataAwareInterface
+{
+ private $messages = array();
+ private $metadata = array();
+ private $resources = array();
+ private $locale;
+ private $fallbackCatalogue;
+ private $parent;
+
+ /**
+ * Constructor.
+ *
+ * @param string $locale The locale
+ * @param array $messages An array of messages classified by domain
+ */
+ public function __construct($locale, array $messages = array())
+ {
+ $this->locale = $locale;
+ $this->messages = $messages;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getLocale()
+ {
+ return $this->locale;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getDomains()
+ {
+ return array_keys($this->messages);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function all($domain = null)
+ {
+ if (null === $domain) {
+ return $this->messages;
+ }
+
+ return isset($this->messages[$domain]) ? $this->messages[$domain] : array();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function set($id, $translation, $domain = 'messages')
+ {
+ $this->add(array($id => $translation), $domain);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function has($id, $domain = 'messages')
+ {
+ if (isset($this->messages[$domain][$id])) {
+ return true;
+ }
+
+ if (null !== $this->fallbackCatalogue) {
+ return $this->fallbackCatalogue->has($id, $domain);
+ }
+
+ return false;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function defines($id, $domain = 'messages')
+ {
+ return isset($this->messages[$domain][$id]);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function get($id, $domain = 'messages')
+ {
+ if (isset($this->messages[$domain][$id])) {
+ return $this->messages[$domain][$id];
+ }
+
+ if (null !== $this->fallbackCatalogue) {
+ return $this->fallbackCatalogue->get($id, $domain);
+ }
+
+ return $id;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function replace($messages, $domain = 'messages')
+ {
+ $this->messages[$domain] = array();
+
+ $this->add($messages, $domain);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function add($messages, $domain = 'messages')
+ {
+ if (!isset($this->messages[$domain])) {
+ $this->messages[$domain] = $messages;
+ } else {
+ $this->messages[$domain] = array_replace($this->messages[$domain], $messages);
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function addCatalogue(MessageCatalogueInterface $catalogue)
+ {
+ if ($catalogue->getLocale() !== $this->locale) {
+ throw new \LogicException(sprintf('Cannot add a catalogue for locale "%s" as the current locale for this catalogue is "%s"', $catalogue->getLocale(), $this->locale));
+ }
+
+ foreach ($catalogue->all() as $domain => $messages) {
+ $this->add($messages, $domain);
+ }
+
+ foreach ($catalogue->getResources() as $resource) {
+ $this->addResource($resource);
+ }
+
+ if ($catalogue instanceof MetadataAwareInterface) {
+ $metadata = $catalogue->getMetadata('', '');
+ $this->addMetadata($metadata);
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function addFallbackCatalogue(MessageCatalogueInterface $catalogue)
+ {
+ // detect circular references
+ $c = $catalogue;
+ while ($c = $c->getFallbackCatalogue()) {
+ if ($c->getLocale() === $this->getLocale()) {
+ throw new \LogicException(sprintf('Circular reference detected when adding a fallback catalogue for locale "%s".', $catalogue->getLocale()));
+ }
+ }
+
+ $c = $this;
+ do {
+ if ($c->getLocale() === $catalogue->getLocale()) {
+ throw new \LogicException(sprintf('Circular reference detected when adding a fallback catalogue for locale "%s".', $catalogue->getLocale()));
+ }
+
+ foreach ($catalogue->getResources() as $resource) {
+ $c->addResource($resource);
+ }
+ } while ($c = $c->parent);
+
+ $catalogue->parent = $this;
+ $this->fallbackCatalogue = $catalogue;
+
+ foreach ($catalogue->getResources() as $resource) {
+ $this->addResource($resource);
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getFallbackCatalogue()
+ {
+ return $this->fallbackCatalogue;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getResources()
+ {
+ return array_values($this->resources);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function addResource(ResourceInterface $resource)
+ {
+ $this->resources[$resource->__toString()] = $resource;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getMetadata($key = '', $domain = 'messages')
+ {
+ if ('' == $domain) {
+ return $this->metadata;
+ }
+
+ if (isset($this->metadata[$domain])) {
+ if ('' == $key) {
+ return $this->metadata[$domain];
+ }
+
+ if (isset($this->metadata[$domain][$key])) {
+ return $this->metadata[$domain][$key];
+ }
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setMetadata($key, $value, $domain = 'messages')
+ {
+ $this->metadata[$domain][$key] = $value;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function deleteMetadata($key = '', $domain = 'messages')
+ {
+ if ('' == $domain) {
+ $this->metadata = array();
+ } elseif ('' == $key) {
+ unset($this->metadata[$domain]);
+ } else {
+ unset($this->metadata[$domain][$key]);
+ }
+ }
+
+ /**
+ * Adds current values with the new values.
+ *
+ * @param array $values Values to add
+ */
+ private function addMetadata(array $values)
+ {
+ foreach ($values as $domain => $keys) {
+ foreach ($keys as $key => $value) {
+ $this->setMetadata($key, $value, $domain);
+ }
+ }
+ }
+}