frankgh commented on code in PR #252: URL: https://github.com/apache/cassandra-sidecar/pull/252#discussion_r2331554740
########## server/src/main/java/org/apache/cassandra/sidecar/handlers/livemigration/LiveMigrationCreateDataCopyTaskHandler.java: ########## @@ -0,0 +1,135 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.cassandra.sidecar.handlers.livemigration; + +import java.util.Set; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.inject.Inject; +import io.netty.handler.codec.http.HttpResponseStatus; +import io.vertx.core.http.HttpServerRequest; +import io.vertx.core.json.DecodeException; +import io.vertx.core.json.Json; +import io.vertx.core.json.JsonObject; +import io.vertx.core.net.SocketAddress; +import io.vertx.ext.auth.authorization.Authorization; +import io.vertx.ext.web.RoutingContext; +import org.apache.cassandra.sidecar.acl.authorization.BasicPermissions; +import org.apache.cassandra.sidecar.common.ApiEndpointsV1; +import org.apache.cassandra.sidecar.common.request.LiveMigrationDataCopyRequest; +import org.apache.cassandra.sidecar.concurrent.ExecutorPools; +import org.apache.cassandra.sidecar.exceptions.LiveMigrationExceptions.LiveMigrationDataCopyInProgressException; +import org.apache.cassandra.sidecar.exceptions.LiveMigrationExceptions.LiveMigrationInvalidRequestException; +import org.apache.cassandra.sidecar.handlers.AbstractHandler; +import org.apache.cassandra.sidecar.handlers.AccessProtected; +import org.apache.cassandra.sidecar.livemigration.DataCopyTaskManager; +import org.apache.cassandra.sidecar.livemigration.LiveMigrationTask; +import org.apache.cassandra.sidecar.utils.CassandraInputValidator; +import org.apache.cassandra.sidecar.utils.InstanceMetadataFetcher; +import org.jetbrains.annotations.NotNull; + +import static org.apache.cassandra.sidecar.utils.HttpExceptions.wrapHttpException; + +/** + * Handler for creating data copy tasks for live migration between Cassandra instances. + * <p> + * This handler processes requests to initiate data copying from a source Cassandra instance to a destination instance. + * Data copy tasks must be submitted to the destination Sidecar instance. When a task is accepted, + * this handler responds with HTTP 202 ACCEPTED status and returns a JSON response containing: + * - taskId: Unique identifier for tracking the created task + * - statusUrl: URL that can be used to query the status of the data copy operation + */ +public class LiveMigrationCreateDataCopyTaskHandler extends AbstractHandler<LiveMigrationDataCopyRequest> implements AccessProtected +{ + private static final Logger LOGGER = LoggerFactory.getLogger(LiveMigrationCreateDataCopyTaskHandler.class); + private final DataCopyTaskManager dataCopyTaskManager; + + @Inject + public LiveMigrationCreateDataCopyTaskHandler(InstanceMetadataFetcher metadataFetcher, + ExecutorPools executorPools, + CassandraInputValidator validator, + DataCopyTaskManager dataCopyTaskManager) + { + super(metadataFetcher, executorPools, validator); + this.dataCopyTaskManager = dataCopyTaskManager; + } + + @Override + protected LiveMigrationDataCopyRequest extractParamsOrThrow(RoutingContext context) + { + try + { + return Json.decodeValue(context.body().buffer(), LiveMigrationDataCopyRequest.class); + } + catch (DecodeException decodeException) + { + throw wrapHttpException(HttpResponseStatus.BAD_REQUEST, + "Error while decoding values, please check your request body.", + decodeException); + } + } + + @Override + protected void handleInternal(RoutingContext context, + HttpServerRequest httpRequest, + @NotNull String host, + SocketAddress remoteAddress, + LiveMigrationDataCopyRequest liveMigrationTaskRequest) + { + dataCopyTaskManager Review Comment: yeah, that's reasonable. I was pointing out what's available. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
