easy-18in/src/main/java/de/marhali/easyi18n/InstanceManager.java
2022-10-28 20:48:31 +02:00

102 lines
3.1 KiB
Java

package de.marhali.easyi18n;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.project.Project;
import de.marhali.easyi18n.model.action.TranslationUpdate;
import org.jetbrains.annotations.NotNull;
import java.util.Map;
import java.util.WeakHashMap;
/**
* Central singleton component for managing an easy-i18n instance for a specific project.
* @author marhali
*/
public class InstanceManager {
private static final Map<Project, InstanceManager> INSTANCES = new WeakHashMap<>();
private final DataStore store;
private final DataBus bus;
private final FilteredDataBus uiBus;
public static InstanceManager get(@NotNull Project project) {
InstanceManager instance = INSTANCES.get(project);
if(instance == null){
instance = new InstanceManager(project);
INSTANCES.put(project, instance);
}
return instance;
}
private InstanceManager(@NotNull Project project) {
this.store = new DataStore(project);
this.bus = new DataBus();
this.uiBus = new FilteredDataBus(project);
// Register ui eventbus on top of the normal eventbus
this.bus.addListener(this.uiBus);
// Load data after first initialization
ApplicationManager.getApplication().invokeLater(() -> {
this.store.loadFromPersistenceLayer((success) -> {
this.bus.propagate().onUpdateData(this.store.getData());
});
});
}
public DataStore store() {
return this.store;
}
/**
* Primary eventbus.
*/
public DataBus bus() {
return this.bus;
}
/**
* UI optimized eventbus with builtin filter logic.
*/
public FilteredDataBus uiBus() {
return this.uiBus;
}
/**
* Reloads the plugin instance. Unsaved cached data will be deleted.
* Fetches data from persistence layer and notifies all endpoints via {@link DataBus}.
*/
public void reload() {
ApplicationManager.getApplication().saveAll(); // Save opened files (required if new locales were added)
store.loadFromPersistenceLayer((success) ->
bus.propagate().onUpdateData(store.getData()));
}
public void processUpdate(TranslationUpdate update) {
if(update.isDeletion() || update.isKeyChange()) { // Remove origin translation
this.store.getData().setTranslation(update.getOrigin().getKey(), null);
}
if(!update.isDeletion()) { // Create or re-create translation with changed data
this.store.getData().setTranslation(update.getChange().getKey(), update.getChange().getValue());
}
this.store.saveToPersistenceLayer(success -> {
if(success) {
this.bus.propagate().onUpdateData(this.store.getData());
if(!update.isDeletion()) {
this.bus.propagate().onFocusKey(update.getChange().getKey());
} else {
this.bus.propagate().onFocusKey(update.getOrigin().getKey());
}
}
});
}
}