Avoid too many return statements within this method.

Open

            return 'null';

Avoid too many return statements within this method.

Open

        return new BulkMetadata($metadata['_type'], $metadata['_identifier'], $metadata['_command']);

Function getScopeKey has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    public function getScopeKey()
    {
        $parent_attribute = $this->getType()->getParentAttribute();
        $scope_key_pieces = [];

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Function readAll has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    public function readAll(SettingsInterface $settings = null)
    {
        $settings = $settings ?: new Settings;

        $data = [];

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Function handleEmbeddedEntityEvents has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    protected function handleEmbeddedEntityEvents(EntityInterface $projection, EmbeddedEntityEventList $events)
    {
        foreach ($events as $event) {
            if ($event instanceof EmbeddedEntityAddedEvent) {
                $this->onEmbeddedEntityAdded($projection, $event);

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Function processEmbeddedEntityCommand has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    protected function processEmbeddedEntityCommand(CommandInterface $command, array $custom_event_state = [])
    {
        $event_class = $command->getEventClass();
        $attribute_name = $command->getParentAttributeName();

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Function readAll has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    public function readAll(SettingsInterface $settings = null)
    {
        $settings = $settings ?: new Settings;

        $data = [];

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Function mapResultData has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    protected function mapResultData(array $result_data)
    {
        $results = [];
        $hits = $result_data['hits'];
        foreach ($hits['hits'] as $hit) {

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Function getIndexSettings has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    protected function getIndexSettings(MigrationTarget $migration_target, $include_type_mapping = false)
    {
        $settings_json_file = $this->getIndexSettingsPath($migration_target);

        if (empty($settings_json_file)) {

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Function excludeAttributes has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    protected function excludeAttributes(array &$array)
    {
        foreach (self::$excluded_attributes as $excluded_attribute) {
            if (array_key_exists($excluded_attribute, $array)) {
                unset($array[$excluded_attribute]);

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Function readAll has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    public function readAll(SettingsInterface $settings = null)
    {
        $settings = $settings ?: new Settings;

        $data = [];

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Function moveTempFileToFinalLocation has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    protected function moveTempFileToFinalLocation($location, EntityTypeInterface $art)
    {
        $from_uri = $this->filesystem_service->createTempUri($location, $art); // from temporary storage
        $to_uri = $this->filesystem_service->createUri($location, $art); // to final storage

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Function getDirection has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    protected function getDirection($target_name, $target_version = null)
    {
        $migration_target = $this->getMigrationTarget($target_name);
        $latest_structure_version = $migration_target->getLatestStructureVersion();

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Function updateAffectedRelatives has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    protected function updateAffectedRelatives(
        ProjectionMap $affected_relatives_map,
        ProjectionInterface $source_projection
    ) {
        $referenced_identifier = $source_projection->getIdentifier();

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Function onEmbeddedEntityModified has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    protected function onEmbeddedEntityModified(EntityInterface $projection, EmbeddedEntityModifiedEvent $event)
    {
        $embedded_projection_attr = $projection->getType()->getAttribute($event->getParentAttributeName());
        $embedded_projection_type = $this->getEmbeddedEntityType($projection, $event);

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Function sanitizeAttributeValue has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    protected function sanitizeAttributeValue(AttributeInterface $attribute, $value)
    {
        $errors = [];
        $sanitized_value = null;

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Function filterEmptyValues has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    public static function filterEmptyValues(array $array, callable $callback = null, $recursive = true)
    {
        $filtered = [];

        foreach ($array as $prop => $value) {

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Function mirrorReferencedProjection has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    protected function mirrorReferencedProjection(EntityReferenceInterface $projection)
    {
        $projection_type = $projection->getType();
        $mirrored_attribute_map = $projection_type->getAttributes()->filter(
            function (AttributeInterface $attribute) {

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