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Insert missing keys into message files

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This commit is contained in:
Hannes Greule 2020-08-17 00:28:46 +02:00
parent f9d7d2d1dd
commit 9b086b3f2a
1 changed files with 135 additions and 16 deletions
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151
Core/src/main/java/com/plotsquared/core/configuration/caption/CaptionLoader.java
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@ -28,13 +28,23 @@ package com.plotsquared.core.configuration.caption;
import com.google.common.reflect.TypeToken;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.annotation.Nonnull;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.lang.reflect.Type;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
@ -43,27 +53,74 @@ import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
* This class handles loading and updating of message files.
*/
public final class CaptionLoader {
private static final Logger logger = LoggerFactory.getLogger("P2/" + CaptionLoader.class.getSimpleName());
private static final Gson GSON = new GsonBuilder().create();
private static final Pattern FILE_NAME_PATTERN = Pattern.compile("messages_(.*)\\.json");
private static final Map<String, String> DEFAULT_MESSAGES;
private static final Locale DEFAULT_LOCALE;
private static final Gson GSON;
private static final Pattern FILE_NAME_PATTERN;
static {
FILE_NAME_PATTERN = Pattern.compile("messages_(.*)\\.json");
GSON = new GsonBuilder()
.setPrettyPrinting()
.disableHtmlEscaping()
.create();
DEFAULT_LOCALE = Locale.ENGLISH;
Map<String, String> temp;
try {
temp = loadResource(DEFAULT_LOCALE);
} catch (Exception e) {
logger.error("Failed to load default messages", e);
temp = Collections.emptyMap();
}
DEFAULT_MESSAGES = temp;
}
private CaptionLoader() {
}
public static CaptionMap loadAll(@Nonnull final Path directory) throws IOException {
/**
* Load all message files in the given directory into a new CaptionMap.
*
* @param directory The directory to load files from
* @return A new CaptionMap containing the loaded messages
* @throws IOException if the files in the given path can't be listed
* @see Files#list(Path)
* @see #loadSingle(Path)
*/
@Nonnull public static CaptionMap loadAll(@Nonnull final Path directory) throws IOException {
final Map<Locale, CaptionMap> localeMaps = new HashMap<>();
try (Stream<Path> files = Files.list(directory)) {
List<Path> captionFiles = files.filter(Files::isRegularFile).collect(Collectors.toList());
try (final Stream<Path> files = Files.list(directory)) {
final List<Path> captionFiles = files.filter(Files::isRegularFile).collect(Collectors.toList());
for (Path file : captionFiles) {
CaptionMap localeMap = loadSingle(file);
localeMaps.put(localeMap.getLocale(), localeMap);
try {
final CaptionMap localeMap = loadSingle(file);
localeMaps.put(localeMap.getLocale(), localeMap);
} catch (Exception e) {
logger.error("Failed to load language file '{}'", file.getFileName().toString(), e);
}
}
logger.info("Loaded {} message files. Loaded Languages: {}", localeMaps.size(), localeMaps.keySet());
return new PerUserLocaleCaptionMap(localeMaps);
}
}
@Nonnull public static CaptionMap loadSingle(@Nonnull final Path file) {
/**
* Load a message file into a new CaptionMap. The file name must match
* the pattern {@code messages_<locale>.json} where {@code <locale>}
* is a valid {@link Locale} string.
*
* @param file The file to load
* @return A new CaptionMap containing the loaded messages
* @throws IOException if the file couldn't be accessed or read successfully.
* @throws IllegalArgumentException if the file name doesn't match the specified format.
*/
@Nonnull public static CaptionMap loadSingle(@Nonnull final Path file) throws IOException {
final String fileName = file.getFileName().toString();
final Matcher matcher = FILE_NAME_PATTERN.matcher(fileName);
final Locale locale;
@ -72,15 +129,77 @@ public final class CaptionLoader {
} else {
throw new IllegalArgumentException(fileName + " is an invalid message file (cannot extract locale)");
}
final Map<String, String> object;
try {
object = GSON.fromJson(Files.newBufferedReader(file, StandardCharsets.UTF_8), new TypeToken<Map<String, String>>() {}.getType());
} catch (final Exception e) {
throw new RuntimeException(String.format("Failed to load caption file '%s'", file.getFileName().toString()), e);
try (final BufferedReader reader = Files.newBufferedReader(file, StandardCharsets.UTF_8)) {
Map<String, String> map = loadFromReader(reader);
if (patch(map, locale)) {
save(file, map); // update the file using the modified map
}
return new LocalizedCaptionMap(locale, map.entrySet().stream()
.collect(Collectors.toMap(entry -> TranslatableCaption.of(entry.getKey()), Map.Entry::getValue)));
}
final Map<TranslatableCaption, String> captions = new HashMap<>();
object.forEach((key, value) -> captions.put(TranslatableCaption.of(key), value));
return new LocalizedCaptionMap(locale, captions);
}
@SuppressWarnings("UnstableApiUsage")
private static Map<String, String> loadFromReader(final Reader reader) {
final Type type = new TypeToken<Map<String, String>>() {}.getType();
return new LinkedHashMap<>(GSON.fromJson(reader, type));
}
private static Map<String, String> loadResource(final Locale locale) {
final String url = String.format("lang/messages_%s.json", locale.toString());
try {
final InputStream stream = CaptionLoader.class.getClassLoader().getResourceAsStream(url);
if (stream == null) {
logger.warn("No resource for locale '{}' found", locale);
return null;
}
try (final BufferedReader reader = new BufferedReader(new InputStreamReader(stream))) {
return loadFromReader(reader);
}
} catch (final IOException e) {
logger.error("Unable to load language resource", e);
return null;
}
}
private static void save(final Path file, final Map<String, String> content) {
try (final BufferedWriter writer = Files.newBufferedWriter(file, StandardCharsets.UTF_8)) {
GSON.toJson(content, writer);
logger.info("Saved {} with new content", file.getFileName());
} catch (final IOException e) {
logger.error("Failed to save caption file '{}'", file.getFileName().toString(), e);
}
}
/**
* Add missing entries to the given map.
* Entries are missing if the key exists in {@link #DEFAULT_MESSAGES} but isn't present
* in the given map. For a missing key, a value will be loaded either from
* the resource matching the given locale or from {@link #DEFAULT_MESSAGES} if
* no matching resource was found or the key isn't present in the resource.
*
* @param map the map to patch
* @param locale the locale to get the resource from
* @return {@code true} if the map was patched.
*/
private static boolean patch(final Map<String, String> map, final Locale locale) {
boolean modified = false;
Map<String, String> languageSpecific;
if (locale.equals(DEFAULT_LOCALE)) {
languageSpecific = DEFAULT_MESSAGES;
} else {
languageSpecific = loadResource(locale);
if (languageSpecific == null) { // fallback for languages not provided by PlotSquared
languageSpecific = DEFAULT_MESSAGES;
}
}
for (Map.Entry<String, String> entry : DEFAULT_MESSAGES.entrySet()) {
if (!map.containsKey(entry.getKey())) {
final String value = languageSpecific.getOrDefault(entry.getKey(), entry.getValue());
map.put(entry.getKey(), value);
modified = true;
}
}
return modified;
}
}