easy-18in/src/main/java/de/marhali/easyi18n/io/json/JsonIOStrategy.java
2021-12-07 13:22:10 +01:00

122 lines
4.4 KiB
Java

package de.marhali.easyi18n.io.json;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonObject;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.LocalFileSystem;
import com.intellij.openapi.vfs.VirtualFile;
import de.marhali.easyi18n.io.IOStrategy;
import de.marhali.easyi18n.model.SettingsState;
import de.marhali.easyi18n.model.TranslationData;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.function.Consumer;
/**
* Strategy for simple json locale files. Each locale has its own file.
* For example localesPath/en.json, localesPath/de.json.
* @author marhali
*/
public class JsonIOStrategy implements IOStrategy {
private static final Gson GSON = new GsonBuilder().setPrettyPrinting().disableHtmlEscaping().create();
private final String FILE_EXTENSION;
public JsonIOStrategy(@NotNull String fileExtension) {
this.FILE_EXTENSION = fileExtension;
}
@Override
public boolean canUse(@NotNull Project project, @NotNull String localesPath, @NotNull SettingsState state) {
VirtualFile directory = LocalFileSystem.getInstance().findFileByIoFile(new File(localesPath));
if(directory == null || directory.getChildren() == null) {
return false;
}
for(VirtualFile children : directory.getChildren()) {
if(!children.isDirectory() && isFileRelevant(state, children)) {
if(children.getFileType().getDefaultExtension().equalsIgnoreCase(FILE_EXTENSION)) {
return true;
}
}
}
return false;
}
@Override
public void read(@NotNull Project project, @NotNull String localesPath,
@NotNull SettingsState state, @NotNull Consumer<@Nullable TranslationData> result) {
ApplicationManager.getApplication().saveAll(); // Save opened files (required if new locales were added)
ApplicationManager.getApplication().runReadAction(() -> {
VirtualFile directory = LocalFileSystem.getInstance().findFileByIoFile(new File(localesPath));
if(directory == null || directory.getChildren() == null) {
throw new IllegalArgumentException("Specified folder is invalid (" + localesPath + ")");
}
TranslationData data = new TranslationData(state.isSortKeys(), state.isNestedKeys());
try {
for(VirtualFile file : directory.getChildren()) {
if(file.isDirectory() || !isFileRelevant(state, file)) {
continue;
}
String locale = file.getNameWithoutExtension();
data.addLocale(locale);
JsonObject tree = GSON.fromJson(new InputStreamReader(file.getInputStream(), file.getCharset()),
JsonObject.class);
JsonMapper.read(locale, tree, data.getRootNode());
}
result.accept(data);
} catch(IOException e) {
e.printStackTrace();
result.accept(null);
}
});
}
@Override
public void write(@NotNull Project project, @NotNull String localesPath,
@NotNull SettingsState state, @NotNull TranslationData data, @NotNull Consumer<Boolean> result) {
ApplicationManager.getApplication().runWriteAction(() -> {
try {
for(String locale : data.getLocales()) {
JsonObject content = new JsonObject();
JsonMapper.write(locale, content, data.getRootNode());
File file = new File(localesPath + "/" + locale + "." + FILE_EXTENSION);
boolean exists = file.createNewFile();
VirtualFile vf = exists
? LocalFileSystem.getInstance().refreshAndFindFileByIoFile(file)
: LocalFileSystem.getInstance().findFileByIoFile(file);
vf.setBinaryContent(GSON.toJson(content).getBytes(vf.getCharset()));
}
result.accept(true);
} catch(IOException e) {
e.printStackTrace();
result.accept(false);
}
});
}
}