private void processTranslationTable(
@NotNull String queryString,
@NotNull Document document,
@NotNull BilingualQueryResultBuilder resultBuilder,
@NotNull Language sourceLanguage,
@NotNull Language targetLanguage) {
// Find main table (german to X)
String languageIdentifier = sourceLanguage.getIdentifier().toLowerCase();
Element translationTable = document.getElementById("gridTranslations-" + languageIdentifier);
// Process the main table with its entries
if (translationTable != null) {
// Find all relevant entries, filter them by class and process them
translationTable
.getElementsByClass("hover")
.stream()
.filter(e -> e.hasClass("default") || e.hasClass("alt"))
.forEach(
e -> processEntry(queryString, e, resultBuilder, sourceLanguage, targetLanguage));
// Extract synonyms
extractBilingualSynonyms(translationTable, resultBuilder, sourceLanguage);
} else {
LOGGER.debug(
"Translation table for {} -> {} with query \"{}\" is null",
languageIdentifier,
targetLanguage.getIdentifier(),
queryString);
}
}
/**
* Returns the one of two languages that is not GERMAN. If none of the two is german, an
* IllegalArgumentException will be thrown.
*
* @param inputLanguage First language to compare.
* @param outputLanguage Second language to compare.
* @return The non-german language.
*/
@NotNull
private Language findTargetLanguage(
@NotNull Language inputLanguage, @NotNull Language outputLanguage) {
if (Language.GERMAN.equals(inputLanguage)) return outputLanguage;
else if (Language.GERMAN.equals(outputLanguage)) {
return inputLanguage;
} else {
throw new IllegalArgumentException(
"Expected at least one language to be german - got "
+ inputLanguage.getIdentifier()
+ " and "
+ outputLanguage.getDisplayName());
}
}
private void findRecommendations(
@NotNull Document doc, @NotNull BilingualQueryResultBuilder resultBuilder) {
// Determine all candidate nodes:
Elements alternativeNodes = doc.select("div.cc > p > *");
Language currentLanguage = null;
for (Element node : alternativeNodes) {
// If the next node is a flagicon, try to determine the language for the next entries from the
// class name
if (node.tagName().equals("span") && node.hasClass("flagicon")) {
Set<String> classNames = node.classNames();
classNames.remove("flagicon");
for (String className : classNames) {
Language candidate = Language.getExistingLanguageById(className);
if (candidate != null) {
currentLanguage = candidate;
break;
}
}
} else if (node.tagName().equals("a")) {
String recommendationText = node.text();
DictionaryObjectBuilder objectBuilder = ImmutableDictionaryObject.builder();
objectBuilder.setLanguage(currentLanguage).setGeneralForm(recommendationText);
resultBuilder.addSimilarRecommendation(objectBuilder.build());
}
}
}
@NotNull
private URL buildTargetUrl(@NotNull String queryString, @NotNull Language language)
throws UnsupportedEncodingException, MalformedURLException {
if (!BASE_URL_PER_LANGUAGE.containsKey(language))
throw new IllegalArgumentException("Unsupported language request: " + language.toString());
String encodedQueryString = URLEncoder.encode(queryString, "UTF-8");
return new URL(
BASE_URL + BASE_URL_PER_LANGUAGE.get(language) + "/" + encodedQueryString + ".php");
}