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plugin translation servlet

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This commit is contained in:
Mohamed Karray
2018-10-20 14:40:03 +02:00
parent 3ac803ce82
commit 9cb661b460
13 changed files with 357 additions and 69 deletions
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68
scm-webapp/src/main/java/sonia/scm/web/i18n/I18nServlet.java
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@@ -4,7 +4,6 @@ package sonia.scm.web.i18n;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.github.legman.Subscribe;
import com.google.inject.Singleton;
import com.sun.org.apache.regexp.internal.RE;
import lombok.extern.slf4j.Slf4j;
import sonia.scm.NotFoundException;
import sonia.scm.SCMContext;
@@ -34,7 +33,7 @@ import java.util.function.Function;
/**
* Collect
* Collect the plugin translations.
*/
@Singleton
@WebElement(value = I18nServlet.PATTERN, regex = true)
@@ -47,9 +46,8 @@ public class I18nServlet extends HttpServlet {
public static final String CACHE_NAME = "sonia.cache.plugins.translations";
private final UberClassLoader uberClassLoader;
private final Cache<String, HashMap<String, String>> cache;
private RE languagePathPostfix = new RE(".*(\\-[A-Z]+)/.*");
private ObjectMapper objectMapper = new ObjectMapper();
private final Cache<String, Map> cache;
private static ObjectMapper objectMapper = new ObjectMapper();
@Inject
@@ -58,18 +56,18 @@ public class I18nServlet extends HttpServlet {
this.cache = cacheManager.getCache(CACHE_NAME);
}
@Subscribe
@Subscribe(async = false)
public void handleRestartEvent(RestartEvent event) {
log.info("clear cache on restart event with reason {}", event.getReason());
log.info("Clear cache on restart event with reason {}", event.getReason());
cache.clear();
}
public Map<String, String> getCollectedJson(String path,
Function<String, Optional<HashMap<String, String>>> jsonFileProvider,
BiConsumer<String, HashMap<String, String>> createdJsonFileConsumer) throws NotFoundException {
private Map getCollectedJson(String path,
Function<String, Optional<Map>> jsonFileProvider,
BiConsumer<String, Map> createdJsonFileConsumer) {
return Optional.ofNullable(jsonFileProvider.apply(path)
.orElseGet(() -> {
Optional<HashMap<String, String>> createdFile = collectJsonFile(path);
Optional<Map> createdFile = collectJsonFile(path);
createdFile.ifPresent(map -> createdJsonFileConsumer.accept(path, map));
return createdFile.orElse(null);
}
@@ -82,9 +80,9 @@ public class I18nServlet extends HttpServlet {
response.setContentType("application/json");
PrintWriter out = response.getWriter();
String path = req.getServletPath();
Function<String, Optional<HashMap<String, String>>> jsonFileProvider = usedPath -> Optional.empty();
BiConsumer<String, HashMap<String, String>> createdJsonFileConsumer = (usedPath, foundJsonMap) -> log.info("A json File is created from the path {}", usedPath);
if (SCMContext.getContext().getStage() == Stage.PRODUCTION) {
Function<String, Optional<Map>> jsonFileProvider = usedPath -> Optional.empty();
BiConsumer<String, Map> createdJsonFileConsumer = (usedPath, foundJsonMap) -> log.info("A json File is created from the path {}", usedPath);
if (isProductionStage()) {
log.info("In Production Stage get the plugin translations from the cache");
jsonFileProvider = usedPath -> Optional.ofNullable(
cache.get(usedPath));
@@ -94,58 +92,40 @@ public class I18nServlet extends HttpServlet {
}
out.write(objectMapper.writeValueAsString(getCollectedJson(path, jsonFileProvider, createdJsonFileConsumer)));
} catch (IOException e) {
log.error("error on getting the translation of the plugins", e);
log.error("Error on getting the translation of the plugins", e);
response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
} catch (NotFoundException e) {
log.error("Plugin translations are not found", e);
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
}
// ScmEventBus.getInstance().post(new RestartEvent(I18nServlet.class,"einfach so"));
}
protected boolean isProductionStage() {
return SCMContext.getContext().getStage() == Stage.PRODUCTION;
}
/**
* Return a collected Json File as map with the given path from all plugins in the class path
* Return a collected Json File as map from the given path from all plugins in the class path
*
* @param path the searched resource path
* @return a collected Json File as map with the given path from all plugins in the class path
* @return a collected Json File as map from the given path from all plugins in the class path
*/
private Optional<HashMap<String, String>> collectJsonFile(String path) {
protected Optional<Map> collectJsonFile(String path) {
log.info("Collect plugin translations from path {} for every plugin", path);
HashMap<String, String> result = null;
Map result = null;
try {
Enumeration<URL> resources = uberClassLoader.getResources(path.replaceFirst("/", ""));
if (resources.hasMoreElements()) {
result = new HashMap<>();
result = new HashMap();
while (resources.hasMoreElements()) {
URL url = resources.nextElement();
result.putAll(mergeJSONs(objectMapper, url));
result.putAll(objectMapper.readValue(Files.readAllBytes(Paths.get(url.getPath())), Map.class));
}
}
} catch (IOException e) {
log.error("Error on loading sources from {}", path, e);
return Optional.empty();
}
return Optional.ofNullable(result);
}
private boolean hasLanguagePostfix(String path) {
return languagePathPostfix.match(path);
}
/**
* remove the -DE from the path locales/de-DE/plugins
*
* @param servletPath
* @return
* @throws IOException
*/
private String removeLanguagePostfix(String servletPath) {
return servletPath.replace(languagePathPostfix.getParen(1), "");
}
// TODO simplify
private HashMap<String, String> mergeJSONs(ObjectMapper objectMapper, URL url) throws IOException {
byte[] src = Files.readAllBytes(Paths.get(url.getPath()));
Map<String, String> json = objectMapper.readValue(src, HashMap.class);
return objectMapper.readerForUpdating(json).readValue(src);
}
}