marton-bod commented on a change in pull request #1631: URL: https://github.com/apache/iceberg/pull/1631#discussion_r508438703
########## File path: mr/src/test/java/org/apache/iceberg/mr/hive/TestHiveShell.java ########## @@ -0,0 +1,173 @@ +/* + * 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.iceberg.mr.hive; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.hive.conf.HiveConf; +import org.apache.hive.service.cli.CLIService; +import org.apache.hive.service.cli.HiveSQLException; +import org.apache.hive.service.cli.OperationHandle; +import org.apache.hive.service.cli.RowSet; +import org.apache.hive.service.cli.SessionHandle; +import org.apache.hive.service.cli.session.HiveSession; +import org.apache.hive.service.server.HiveServer2; +import org.apache.iceberg.common.DynMethods; + +import static org.apache.commons.lang3.StringUtils.isNotBlank; +import static org.apache.iceberg.relocated.com.google.common.base.Preconditions.checkState; + +/** + * Test class for running HiveQL queries, essentially acting like a Beeline shell in tests. + * + * It takes a metastore URL via conf, and spins up an HS2 instance which connects to it. The shell will only accept + * queries if it has been previously initialized via {@link #start()}, and a session has been opened via + * {@link #openSession()}. Prior to calling {@link #start()}, the shell should first be configured with props that apply + * across all test cases by calling {@link #setHiveConfValue(String, String)} ()}. On the other hand, session-level conf + * can be applied anytime via {@link #setHiveSessionValue(String, String)} ()}, once we've opened an active session. + */ +public class TestHiveShell { + + private static final DynMethods.StaticMethod FIND_FREE_PORT = DynMethods.builder("findFreePort") + .impl("org.apache.hadoop.hive.metastore.utils.MetaStoreUtils") + .impl("org.apache.hadoop.hive.metastore.MetaStoreUtils") + .buildStatic(); + + private final HiveServer2 hs2; + private final HiveConf conf; + private CLIService client; + private HiveSession session; + private boolean started; + + public TestHiveShell() { + conf = initializeConf(); + hs2 = new HiveServer2(); + } + + public void setHiveConfValue(String key, String value) { + checkState(!started, "TestHiveShell has already been started. Cannot set Hive conf anymore."); + conf.set(key, value); + } + + public void setHiveSessionValue(String key, String value) { + checkState(session != null, "There is no open session for setting variables."); + try { + session.getSessionConf().set(key, value); + } catch (Exception e) { + throw new RuntimeException("Unable to set Hive session variable: ", e); + } + } + + public void start() { + checkState(isNotBlank(conf.get(HiveConf.ConfVars.METASTOREURIS.varname)), + "hive.metastore.uris must be supplied in config. TestHiveShell needs an external metastore to connect to."); + hs2.init(conf); + hs2.start(); + client = hs2.getServices().stream() + .filter(CLIService.class::isInstance) + .findFirst() + .map(CLIService.class::cast) + .get(); + started = true; + } + + public void stop() { + if (client != null) { + client.stop(); + } + hs2.stop(); + started = false; + } + + public void openSession() { + checkState(started, "You have to start TestHiveShell first, before opening a session."); + try { + SessionHandle sessionHandle = client.getSessionManager().openSession( + CLIService.SERVER_VERSION, "", "", "127.0.0.1", Collections.emptyMap()); Review comment: fixed ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For additional commands, e-mail: issues-h...@iceberg.apache.org
