/**
* 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.hive.hcatalog.data;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map.Entry;
import org.apache.hadoop.hive.cli.CliSessionState;
import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.ql.CommandNeedRetryException;
import org.apache.hadoop.hive.ql.Driver;
import org.apache.hadoop.hive.ql.session.SessionState;
import org.apache.hive.hcatalog.MiniCluster;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Helper class for Other Data Testers
*/
public class HCatDataCheckUtil {
private static final Logger LOG = LoggerFactory.getLogger(HCatDataCheckUtil.class);
public static Driver instantiateDriver(MiniCluster cluster) {
HiveConf hiveConf = new HiveConf(HCatDataCheckUtil.class);
for (Entry e : cluster.getProperties().entrySet()) {
hiveConf.set(e.getKey().toString(), e.getValue().toString());
}
hiveConf.set(HiveConf.ConfVars.PREEXECHOOKS.varname, "");
hiveConf.set(HiveConf.ConfVars.POSTEXECHOOKS.varname, "");
hiveConf.set(HiveConf.ConfVars.HIVE_SUPPORT_CONCURRENCY.varname, "false");
LOG.debug("Hive conf : {}", hiveConf.getAllProperties());
Driver driver = new Driver(hiveConf);
SessionState.start(new CliSessionState(hiveConf));
return driver;
}
public static void generateDataFile(MiniCluster cluster, String fileName) throws IOException {
MiniCluster.deleteFile(cluster, fileName);
String[] input = new String[50];
for (int i = 0; i < 50; i++) {
input[i] = (i % 5) + "\t" + i + "\t" + "_S" + i + "S_";
}
MiniCluster.createInputFile(cluster, fileName, input);
}
public static void createTable(Driver driver, String tableName, String createTableArgs)
throws CommandNeedRetryException, IOException {
String createTable = "create table " + tableName + createTableArgs;
int retCode = driver.run(createTable).getResponseCode();
if (retCode != 0) {
throw new IOException("Failed to create table. [" + createTable + "], return code from hive driver : [" + retCode + "]");
}
}
public static void dropTable(Driver driver, String tablename) throws IOException, CommandNeedRetryException {
driver.run("drop table if exists " + tablename);
}
public static ArrayList<String> formattedRun(Driver driver, String name, String selectCmd)
throws CommandNeedRetryException, IOException {
driver.run(selectCmd);
ArrayList<String> src_values = new ArrayList<String>();
driver.getResults(src_values);
LOG.info("{} : {}", name, src_values);
return src_values;
}
public static boolean recordsEqual(HCatRecord first, HCatRecord second) {
return (compareRecords(first, second) == 0);
}
public static int compareRecords(HCatRecord first, HCatRecord second) {
return compareRecordContents(first.getAll(), second.getAll());
}
public static int compareRecordContents(List<Object> first, List<Object> second) {
int mySz = first.size();
int urSz = second.size();
if (mySz != urSz) {
return mySz - urSz;
} else {
for (int i = 0; i < first.size(); i++) {
int c = DataType.compare(first.get(i), second.get(i));
if (c != 0) {
return c;
}
}
return 0;
}
}
}