CancelLoadAction.java
// 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.doris.httpv2.rest;
import org.apache.doris.catalog.Database;
import org.apache.doris.catalog.Env;
import org.apache.doris.common.MetaNotFoundException;
import org.apache.doris.common.UserException;
import org.apache.doris.datasource.InternalCatalog;
import org.apache.doris.httpv2.entity.ResponseEntityBuilder;
import org.apache.doris.httpv2.exception.UnauthorizedException;
import org.apache.doris.mysql.privilege.PrivPredicate;
import org.apache.doris.qe.ConnectContext;
import com.google.common.base.Strings;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* To cancel a load transaction with given load label
*/
@RestController
public class CancelLoadAction extends RestBaseController {
@RequestMapping(path = "/api/{" + DB_KEY + "}/_cancel", method = RequestMethod.POST)
public Object execute(@PathVariable(value = DB_KEY) final String dbName,
HttpServletRequest request, HttpServletResponse response) {
if (needRedirect(request.getScheme())) {
return redirectToHttps(request);
}
executeCheckPassword(request, response);
if (checkForwardToMaster(request)) {
return forwardToMaster(request);
}
if (Strings.isNullOrEmpty(dbName)) {
return ResponseEntityBuilder.badRequest("No database selected");
}
String fullDbName = getFullDbName(dbName);
String label = request.getParameter(LABEL_KEY);
if (Strings.isNullOrEmpty(label)) {
return ResponseEntityBuilder.badRequest("No label specified");
}
Database db;
try {
db = Env.getCurrentInternalCatalog().getDbOrMetaException(fullDbName);
} catch (MetaNotFoundException e) {
return ResponseEntityBuilder.okWithCommonError(e.getMessage());
}
// TODO(cmy): Currently we only check priv in db level.
// Should check priv in table level.
if (!Env.getCurrentEnv().getAccessManager()
.checkDbPriv(ConnectContext.get(), InternalCatalog.INTERNAL_CATALOG_NAME, fullDbName,
PrivPredicate.LOAD)) {
throw new UnauthorizedException("Access denied for user '" + ConnectContext.get().getQualifiedUser()
+ "' to database '" + fullDbName + "'");
}
try {
Env.getCurrentGlobalTransactionMgr().abortTransaction(db.getId(), label, "user cancel");
} catch (UserException e) {
return ResponseEntityBuilder.okWithCommonError(e.getMessage());
}
return ResponseEntityBuilder.ok();
}
}