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package cz.zcu.kiv.backendapi.catalog;
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import cz.zcu.kiv.backendapi.alternativename.AlternativeName;
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import cz.zcu.kiv.backendapi.bibliography.Bibliography;
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import cz.zcu.kiv.backendapi.country.Country;
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import cz.zcu.kiv.backendapi.exception.ApiRequestException;
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import cz.zcu.kiv.backendapi.path.PathDto;
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import cz.zcu.kiv.backendapi.type.ITypeService;
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import cz.zcu.kiv.backendapi.type.Type;
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import cz.zcu.kiv.backendapi.writtenform.WrittenForm;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.http.HttpStatus;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Set;
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import java.util.UUID;
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import java.util.function.Predicate;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import java.util.stream.Collectors;
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/**
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* Catalog item service implementation
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*/
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@Service
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@Transactional
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@RequiredArgsConstructor
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@Slf4j
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public class CatalogItemServiceImpl implements ICatalogItemService {
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/**
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* Regex for one arbitrary character in string
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*/
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private static final String WILDCARD_CHARACTER_REGEX = "\\?";
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/**
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* Regex for one arbitrary character in string used in Java
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*/
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private static final String WILDCARD_CHARACTER_REGEX_JAVA = ".";
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/**
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* Regex for any number of arbitrary characters in string
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*/
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private static final String WILDCARD_CHARACTERS_REGEX = "\\*";
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/**
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* Regex for any number of arbitrary characters in string used in Java
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*/
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private static final String WILDCARD_CHARACTERS_REGEX_JAVA = ".*";
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/**
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* Regex for finding punctuation at the start of word
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*/
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private static final String START_PUNCTUATION_REGEX = "^[\\p{Punct}\\p{IsPunctuation}]+";
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/**
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* Regex for finding punctuation at the end of word
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*/
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private static final String END_PUNCTUATION_REGEX = "[\\p{Punct}\\p{IsPunctuation}]+$";
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/**
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* Pattern for finding punctuation at the start of word
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*/
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private static final Pattern START_PUNCTUATION_PATTERN = Pattern.compile(START_PUNCTUATION_REGEX);
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/**
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* Pattern for finding punctuation at the end of word
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*/
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private static final Pattern END_PUNCTUATION_PATTERN = Pattern.compile(END_PUNCTUATION_REGEX);
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/**
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* Message for exception when catalog item is not found by id
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*/
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private static final String CATALOG_ITEM_NOT_FOUND = "Catalog item not found";
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/**
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* Catalog repository
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*/
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private final CatalogItemRepository catalogItemRepository;
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/**
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* Type service
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*/
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private final ITypeService typeService;
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@Override
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public void saveCatalog(List<CatalogItem> catalogItems) {
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log.info("Saving catalog");
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catalogItems.forEach(this::saveCatalogEntity);
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}
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@Override
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public void saveCatalogItem(CatalogItemDto catalogItemDto) {
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log.info("Saving catalog item");
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CatalogItem catalogItem = new CatalogItem();
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convertDtoToEntity(catalogItemDto, catalogItem);
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saveCatalogEntity(catalogItem);
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}
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@Override
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public void updateCatalogItem(UUID id, CatalogItemDto catalogItemDto) {
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CatalogItem catalogItem = catalogItemRepository.findById(id).orElseThrow(() -> {
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log.error(CATALOG_ITEM_NOT_FOUND);
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throw new ApiRequestException(CATALOG_ITEM_NOT_FOUND, HttpStatus.NOT_FOUND);
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});
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convertDtoToEntity(catalogItemDto, catalogItem);
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saveCatalogEntity(catalogItem);
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log.info("Catalog item updated");
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}
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@Override
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public void deleteCatalogItem(UUID id) {
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if (!catalogItemRepository.existsById(id)) {
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log.error(CATALOG_ITEM_NOT_FOUND);
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throw new ApiRequestException(CATALOG_ITEM_NOT_FOUND, HttpStatus.NOT_FOUND);
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}
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catalogItemRepository.deleteById(id);
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log.info("Catalog item deleted");
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}
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@Override
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public CatalogItemDto getCatalogItem(UUID id) {
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CatalogItem catalogItem = catalogItemRepository.findById(id).orElseThrow(() -> {
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log.error(CATALOG_ITEM_NOT_FOUND);
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throw new ApiRequestException(CATALOG_ITEM_NOT_FOUND, HttpStatus.NOT_FOUND);
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});
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return convertEntityToDto(catalogItem);
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}
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@Override
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public PathDto getPath(String text) {
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PathDto pathDto = new PathDto();
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StringBuilder highlightedText = new StringBuilder();
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List<List<CatalogItemDto>> foundCatalogItems = new ArrayList<>();
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Set<String> types = typeService.getAllTypesAsString();
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String[] tokens = text.split("\\s+");
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for (String token : tokens) {
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Matcher matcherStart = START_PUNCTUATION_PATTERN.matcher(token);
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Matcher matcherEnd = END_PUNCTUATION_PATTERN.matcher(token);
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String prefix = "";
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String suffix = "";
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String textToFind;
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int startTextIndex = 0;
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int endTextIndex = token.length();
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if (matcherStart.find()) {
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int start = matcherStart.start();
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startTextIndex = matcherStart.end();
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prefix = token.substring(start, startTextIndex);
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}
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if (matcherEnd.find()) {
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endTextIndex = matcherEnd.start();
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int end = matcherEnd.end();
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suffix = token.substring(endTextIndex, end);
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}
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textToFind = token.substring(startTextIndex, endTextIndex);
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if (types.contains(textToFind)) {
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textToFind = "<b>" + textToFind + "</b>";
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} else {
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List<CatalogItem> foundItems = catalogItemRepository.getItemsByName(textToFind);
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if (!foundItems.isEmpty()) {
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if (foundItems.stream().anyMatch(c -> c.getLatitude() != null && c.getLongitude() != null)) {
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textToFind = "<span style='color:green'>" + textToFind + "</span>";
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} else {
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textToFind = "<span style='color:red'>" + textToFind + "</span>";
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}
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foundCatalogItems.add(foundItems.stream().map(this::convertEntityToDto).collect(Collectors.toList()));
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}
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}
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highlightedText.append(prefix).append(textToFind).append(suffix).append(" ");
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}
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highlightedText.setLength(highlightedText.length() - 1);
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pathDto.setText(highlightedText.toString());
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pathDto.setFoundCatalogItems(foundCatalogItems);
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return pathDto;
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}
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@Override
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public List<CatalogItemDto> getCatalog(String name, String country, String type, String writtenForm) {
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log.info("Retrieving catalog");
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String finalName = name.replaceAll(WILDCARD_CHARACTER_REGEX, WILDCARD_CHARACTER_REGEX_JAVA).replaceAll(WILDCARD_CHARACTERS_REGEX, WILDCARD_CHARACTERS_REGEX_JAVA);
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String finalCountry = country.replaceAll(WILDCARD_CHARACTER_REGEX, WILDCARD_CHARACTER_REGEX_JAVA).replaceAll(WILDCARD_CHARACTERS_REGEX, WILDCARD_CHARACTERS_REGEX_JAVA);
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String finalType = type.replaceAll(WILDCARD_CHARACTER_REGEX, WILDCARD_CHARACTER_REGEX_JAVA).replaceAll(WILDCARD_CHARACTERS_REGEX, WILDCARD_CHARACTERS_REGEX_JAVA);
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String finalWrittenForm = writtenForm.replaceAll(WILDCARD_CHARACTER_REGEX, WILDCARD_CHARACTER_REGEX_JAVA).replaceAll(WILDCARD_CHARACTERS_REGEX, WILDCARD_CHARACTERS_REGEX_JAVA);
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Pattern patternName = Pattern.compile(finalName, Pattern.CASE_INSENSITIVE);
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Pattern patternCountry = Pattern.compile(finalCountry, Pattern.CASE_INSENSITIVE);
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Pattern patternType = Pattern.compile(finalType, Pattern.CASE_INSENSITIVE);
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Pattern patternWrittenForm = Pattern.compile(finalWrittenForm, Pattern.CASE_INSENSITIVE);
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List<CatalogItem> catalogItems = catalogItemRepository.findAll();
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Predicate<CatalogItem> predicateType = i -> finalType.equals("") || i.getTypes().stream().anyMatch(t -> patternType.matcher(t.getType()).matches());
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Predicate<CatalogItem> predicateCountry = i -> finalCountry.equals("") || i.getCountries().stream().anyMatch(t -> patternCountry.matcher(t.getName()).matches());
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Predicate<CatalogItem> predicateName = i -> finalName.equals("") || patternName.matcher(i.getName()).matches() || i.getAlternativeNames().stream().anyMatch(t -> patternName.matcher(t.getName()).matches());
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Predicate<CatalogItem> predicateWrittenForm = i -> finalWrittenForm.equals("") || i.getWrittenForms().stream().anyMatch(t -> patternWrittenForm.matcher(t.getForm()).matches());
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catalogItems = catalogItems.stream().filter(predicateName.and(predicateCountry).and(predicateType).and(predicateWrittenForm)).collect(Collectors.toList());
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return catalogItems.stream().map(this::convertEntityToDto).collect(Collectors.toList());
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}
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/**
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* Saves catalog entity to database
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*
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* @param catalogItem catalog entity
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*/
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private void saveCatalogEntity(CatalogItem catalogItem) {
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for (Type type : catalogItem.getTypes()) {
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if (typeService.getTypeByName(type.getType()).isEmpty()) {
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typeService.saveType(type);
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}
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}
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catalogItemRepository.save(catalogItem);
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}
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/**
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* Converts catalog item DTO to catalog item entity
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*
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* @param catalogItemDto catalog item DTO
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* @param catalogItem catalog item entity
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*/
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private void convertDtoToEntity(CatalogItemDto catalogItemDto, CatalogItem catalogItem) {
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catalogItem.setName(catalogItemDto.getName());
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catalogItem.setCertainty(catalogItemDto.getCertainty());
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catalogItem.setLatitude(catalogItemDto.getLatitude());
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catalogItem.setLongitude(catalogItemDto.getLongitude());
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catalogItem.getBibliography().clear();
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catalogItem.getBibliography().addAll(catalogItemDto.getBibliography()
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.stream().map(s -> new Bibliography(s, catalogItem)).collect(Collectors.toSet()));
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catalogItem.getTypes().clear();
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catalogItem.getTypes().addAll(catalogItemDto.getTypes()
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.stream().map(Type::new).collect(Collectors.toSet()));
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catalogItem.getCountries().clear();
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catalogItem.getCountries().addAll(catalogItemDto.getCountries()
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.stream().map(s -> new Country(s, catalogItem)).collect(Collectors.toSet()));
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catalogItemDto.getAlternativeNames().add(catalogItemDto.getName());
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catalogItem.getAlternativeNames().clear();
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catalogItem.getAlternativeNames().addAll(catalogItemDto.getAlternativeNames()
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.stream().map(s -> new AlternativeName(s, catalogItem)).collect(Collectors.toSet()));
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catalogItem.getWrittenForms().clear();
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catalogItem.getWrittenForms().addAll(catalogItemDto.getWrittenForms()
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.stream().map(s -> new WrittenForm(s, catalogItem)).collect(Collectors.toSet()));
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catalogItem.setDescription(catalogItemDto.getDescription());
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}
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/**
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* Converts catalog item entity to catalog item DTO
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*
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* @param catalogItem catalog item entity
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* @return catalog item DTO
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*/
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private CatalogItemDto convertEntityToDto(CatalogItem catalogItem) {
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CatalogItemDto catalogItemDto = new CatalogItemDto();
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catalogItemDto.setId(catalogItem.getId());
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catalogItemDto.setName(catalogItem.getName());
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catalogItemDto.setLatitude(catalogItem.getLatitude());
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catalogItemDto.setLongitude(catalogItem.getLongitude());
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catalogItemDto.setCertainty(catalogItem.getCertainty());
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catalogItemDto.setBibliography(catalogItem.getBibliography()
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.stream().map(Bibliography::getSource).collect(Collectors.toSet()));
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catalogItemDto.setTypes(catalogItem.getTypes()
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.stream().map(Type::getType).collect(Collectors.toSet()));
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catalogItemDto.setCountries(catalogItem.getCountries()
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.stream().map(Country::getName).collect(Collectors.toSet()));
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catalogItemDto.setAlternativeNames(catalogItem.getAlternativeNames()
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.stream().map(AlternativeName::getName).collect(Collectors.toSet()));
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catalogItemDto.setWrittenForms(catalogItem.getWrittenForms()
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.stream().map(WrittenForm::getForm).collect(Collectors.toSet()));
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catalogItemDto.setDescription(catalogItem.getDescription());
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return catalogItemDto;
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}
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}
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