DEVX-813: adding CategoryUtil

Author: ShipilA

commercetools/commercetools-importapi-utils/src/main/java/com/commercetools/sdk/CategoryUtil.java

@@ -0,0 +1,46 @@
+package com.commercetools.sdk;
+
+import com.commercetools.api.models.category.Category;
+import com.commercetools.api.models.category.CategoryReference;
+import com.commercetools.importapi.models.categories.CategoryImport;
+import com.commercetools.importapi.models.common.CategoryKeyReference;
+import com.commercetools.importapi.models.common.LocalizedStringBuilder;
+
+import java.util.Optional;
+
+import static com.commercetools.sdk.CommonImportUtil.*;
+
+public class CategoryUtil {
+
+    public CategoryImport toCategoryImport(Category category) {
+       return CategoryImport.builder()
+               .key(category.getKey())  // required field
+               .name(getLocalizedStringBuilder(category.getName()).build())  // required field
+               .slug(getLocalizedStringBuilder(category.getSlug()).build())  // required field
+               .description(Optional.ofNullable(category.getDescription()).map(CommonImportUtil::getLocalizedStringBuilder)
+                       .map(LocalizedStringBuilder::build)
+                       .orElse(null))
+               .parent(CategoryKeyReference(category.getParent()))
+               .orderHint(category.getOrderHint())
+               .externalId(category.getId())
+               .metaTitle(Optional.ofNullable(category.getMetaTitle()).map(CommonImportUtil::getLocalizedStringBuilder)
+                       .map(LocalizedStringBuilder::build)
+                       .orElse(null))
+               .metaDescription(Optional.ofNullable(category.getMetaDescription()).map(CommonImportUtil::getLocalizedStringBuilder)
+                       .map(LocalizedStringBuilder::build)
+                       .orElse(null))
+               .metaKeywords(Optional.ofNullable(category.getMetaKeywords()).map(CommonImportUtil::getLocalizedStringBuilder)
+                       .map(LocalizedStringBuilder::build)
+                       .orElse(null))
+               .assets(importAssets(category.getAssets()))
+               .custom(getImportApiCustom(category.getCustom()))
+               .build();
+    }
+
+    private CategoryKeyReference CategoryKeyReference(CategoryReference categoryReference) {
+        if (categoryReference == null) {
+            return null;
+        }
+        return CategoryKeyReference.builder().key(categoryReference.getId()).build();
+    }
+}