package crate.elasticsearch.rest.action.admin.export;
import static org.elasticsearch.rest.RestRequest.Method.POST;
import static org.elasticsearch.rest.RestStatus.BAD_REQUEST;
import static org.elasticsearch.rest.RestStatus.OK;
import static org.elasticsearch.rest.action.support.RestActions.splitTypes;
import java.io.IOException;
import org.elasticsearch.action.Action;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.IgnoreIndices;
import org.elasticsearch.action.support.broadcast.BroadcastOperationThreading;
import org.elasticsearch.client.Client;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.RestChannel;
import org.elasticsearch.rest.RestController;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.XContentRestResponse;
import org.elasticsearch.rest.XContentThrowableRestResponse;
import org.elasticsearch.rest.action.support.RestActions;
import org.elasticsearch.rest.action.support.RestXContentBuilder;
import crate.elasticsearch.action.export.ExportAction;
import crate.elasticsearch.action.export.ExportRequest;
import crate.elasticsearch.action.export.ExportResponse;
import crate.elasticsearch.client.action.export.ExportRequestBuilder;
/**
*
*/
public class RestExportAction extends BaseRestHandler {
@Inject
public RestExportAction(Settings settings, Client client, RestController controller) {
super(settings, client);
registerHandlers(controller);
}
protected void registerHandlers(RestController controller) {
controller.registerHandler(POST, "/_export", this);
controller.registerHandler(POST, "/{index}/_export", this);
controller.registerHandler(POST, "/{index}/{type}/_export", this);
}
protected Action<ExportRequest, ExportResponse, ExportRequestBuilder> action() {
return ExportAction.INSTANCE;
}
public void handleRequest(final RestRequest request, final RestChannel channel) {
ExportRequest exportRequest = new ExportRequest(RestActions.splitIndices(request.param("index")));
if (request.hasParam("ignore_indices")) {
exportRequest.ignoreIndices(IgnoreIndices.fromString(request.param("ignore_indices")));
}
exportRequest.listenerThreaded(false);
try {
BroadcastOperationThreading operationThreading = BroadcastOperationThreading.fromString(request.param("operation_threading"), BroadcastOperationThreading.SINGLE_THREAD);
if (operationThreading == BroadcastOperationThreading.NO_THREADS) {
// since we don't spawn, don't allow no_threads, but change it to a single thread
operationThreading = BroadcastOperationThreading.SINGLE_THREAD;
}
exportRequest.operationThreading(operationThreading);
if (request.hasContent()) {
exportRequest.source(request.content(), request.contentUnsafe());
} else {
String source = request.param("source");
if (source != null) {
exportRequest.source(source);
} else {
BytesReference querySource = RestActions.parseQuerySource(request);
if (querySource != null) {
exportRequest.source(querySource, false);
}
}
}
exportRequest.routing(request.param("routing"));
exportRequest.types(splitTypes(request.param("type")));
exportRequest.preference(request.param("preference", "_primary"));
} catch (Exception e) {
try {
XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
channel.sendResponse(new XContentRestResponse(request, BAD_REQUEST, builder.startObject().field("error", e.getMessage()).endObject()));
} catch (IOException e1) {
logger.error("Failed to send failure response", e1);
}
return;
}
client.execute(action(), exportRequest, new ActionListener<ExportResponse>() {
public void onResponse(ExportResponse response) {
try {
XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
response.toXContent(builder, request);
channel.sendResponse(new XContentRestResponse(request, OK, builder));
} catch (Exception e) {
onFailure(e);
}
}
public void onFailure(Throwable e) {
try {
channel.sendResponse(new XContentThrowableRestResponse(request, e));
} catch (IOException e1) {
logger.error("Failed to send failure response", e1);
}
}
});
}
}