public Result exportExtractors(String nodeId, String inputId) {
if (!Permissions.isPermitted(RestPermissions.INPUTS_READ, inputId)) {
return redirect(routes.StartpageController.redirect());
}
try {
Node node = nodeService.loadNode(nodeId);
Input input = node.getInput(inputId);
BreadcrumbList bc = standardBreadcrumbs(node, input);
bc.addCrumb(
"Export", controllers.routes.ExtractorsController.exportExtractors(nodeId, inputId));
Map<String, Object> result = Maps.newHashMap();
List<Map<String, Object>> extractors = Lists.newArrayList();
for (Extractor extractor : extractorService.all(node, input)) {
extractors.add(extractor.export());
}
result.put("extractors", extractors);
result.put("version", Version.VERSION.toString());
String extractorExport = Json.toJsonString(result);
return ok(
views.html.system.inputs.extractors.export.render(
currentUser(), bc, node, input, extractorExport));
} catch (IOException e) {
return status(500, views.html.errors.error.render(ApiClient.ERROR_MSG_IO, e, request()));
} catch (APIException e) {
String message =
"Could not fetch system information. We expected HTTP 200, but got a HTTP "
+ e.getHttpCode()
+ ".";
return status(500, views.html.errors.error.render(message, e, request()));
} catch (NodeService.NodeNotFoundException e) {
return status(
404, views.html.errors.error.render(ApiClient.ERROR_MSG_NODE_NOT_FOUND, e, request()));
}
}
public Result importExtractors(String nodeId, String inputId) {
if (!Permissions.isPermitted(RestPermissions.INPUTS_EDIT, inputId)) {
return redirect(routes.StartpageController.redirect());
}
Map<String, String> form = flattenFormUrlEncoded(request().body().asFormUrlEncoded());
if (!form.containsKey("extractors") || form.get("extractors").isEmpty()) {
flash("error", "No JSON provided. Please fill out the import definition field.");
return redirect(
controllers.routes.ExtractorsController.importExtractorsPage(nodeId, inputId));
}
ExtractorListImportRequest elir;
try {
elir = Json.fromJson(Json.parse(form.get("extractors")), ExtractorListImportRequest.class);
} catch (Exception e) {
Logger.error("Could not read JSON.", e);
flash("error", "Could not read JSON.");
return redirect(
controllers.routes.ExtractorsController.importExtractorsPage(nodeId, inputId));
}
/*
* For future versions with breaking changes: check the "version" field in the ExtractorListImportRequest.
*
* Thank me later.
*/
int successes = 0;
List<String> failedExtractors = new ArrayList<>();
for (ExtractorImportRequest importRequest : elir.extractors) {
try {
Node node = nodeService.loadNode(nodeId);
Extractor.Type type = Extractor.Type.valueOf(importRequest.extractorType.toUpperCase());
Extractor extractor =
extractorFactory.forCreate(
Extractor.CursorStrategy.valueOf(importRequest.cursorStrategy.toUpperCase()),
importRequest.title,
importRequest.sourceField,
importRequest.targetField,
type,
currentUser(),
Extractor.ConditionType.valueOf(importRequest.conditionType.toUpperCase()),
importRequest.conditionValue);
extractor.loadConfigFromImport(type, importRequest.extractorConfig);
extractor.loadConvertersFromImport(importRequest.converters);
extractor.setOrder(importRequest.order);
extractorService.create(node, node.getInput(inputId), extractor.toCreateExtractorRequest());
successes++;
} catch (Exception e) {
failedExtractors.add(importRequest.title);
Logger.error(
"Could not import extractor \"" + importRequest.title + "\": " + e.getMessage());
Logger.debug("Details for failing to import extractor \"" + importRequest.title + "\":", e);
}
}
if (!failedExtractors.isEmpty()) {
flash(
"error",
"Failed to import "
+ failedExtractors.size()
+ " extractors: "
+ Joiner.on(',').useForNull("[null title]").join(failedExtractors));
}
flash(
"success",
"Successfully imported " + successes + " of " + elir.extractors.size() + " extractors.");
return redirect(controllers.routes.ExtractorsController.manage(nodeId, inputId));
}