Checking Category of a Page in Liferay

import com.liferay.asset.kernel.model.AssetCategory;
import com.liferay.asset.kernel.model.AssetEntry;
import com.liferay.asset.kernel.service.AssetCategoryLocalServiceUtil;
import com.liferay.asset.kernel.service.AssetEntryLocalServiceUtil;
import com.liferay.portal.kernel.dao.orm.DynamicQuery;
import com.liferay.portal.kernel.dao.orm.DynamicQueryFactoryUtil;
import com.liferay.portal.kernel.dao.orm.PropertyFactoryUtil;
import com.liferay.portal.kernel.model.Layout;
import com.liferay.portal.kernel.service.LayoutLocalServiceUtil;
import com.liferay.portal.kernel.util.LocaleUtil;

AssetEntry assetentry = null;
List<AssetCategory> categoryList = null;
Locale loc = LocaleUtil.ENGLISH;
//Using a dynamic query to fetch all the categories with the name "Not_Valid_Page"
DynamicQuery query = DynamicQueryFactoryUtil.forClass(AssetCategory.class).add(PropertyFactoryUtil.forName("name").eq("Not_Valid_Page"));
categoryList = AssetCategoryLocalServiceUtil.dynamicQuery(query, 0,1);

for(AssetCategory assetCategory:categoryList) {
    // It will Fetch the Category with name "Not_Valid_Page"
    System.out.println(" Category Name"+assetCategory.getName());
}

//Fetching all the Layouts
for(Layout layout:LayoutLocalServiceUtil.getLayouts(-1, -1)) {

assetentry = AssetEntryLocalServiceUtil.getEntry(Layout.class.getName(),layout.getPrimaryKey());
long assetCategoryId[] = assetentry.getCategoryIds();
List<AssetCategory> assetCategories = assetentry.getCategories();

if(assetCategories.contains(categoryList.get(0))){

//layout contains the detail of the page which contains the category of "Not_Valid_Page"

}
}