/*
*
* Licensed 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.storage.jdbc;
import static org.hamcrest.Matchers.equalToIgnoringWhiteSpace;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.notNullValue;
import static org.junit.Assert.assertThat;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hive.ql.plan.TableScanDesc;
import org.apache.hadoop.hive.serde.serdeConstants;
import org.junit.BeforeClass;
import org.junit.Test;
import org.apache.hive.storage.jdbc.conf.JdbcStorageConfig;
import java.io.IOException;
import java.util.Scanner;
public class QueryConditionBuilderTest {
private static String condition1;
private static String condition2;
@BeforeClass
public static void setup() throws IOException {
condition1 = readFileContents("condition1.xml");
condition2 = readFileContents("condition2.xml");
}
private static String readFileContents(String name) throws IOException {
try (Scanner s = new Scanner(QueryConditionBuilderTest.class.getClassLoader().getResourceAsStream(name))) {
return s.useDelimiter("\\Z").next();
}
}
@Test
public void testSimpleCondition_noTranslation() {
Configuration conf = new Configuration();
conf.set(TableScanDesc.FILTER_EXPR_CONF_STR, condition1);
conf.set(serdeConstants.LIST_COLUMNS, "visitor_id,sentiment,tracking_id");
String condition = QueryConditionBuilder.getInstance().buildCondition(conf);
assertThat(condition, is(notNullValue()));
assertThat(condition, is(equalToIgnoringWhiteSpace("(visitor_id = 'x')")));
}
@Test
public void testSimpleCondition_withTranslation() {
Configuration conf = new Configuration();
conf.set(TableScanDesc.FILTER_EXPR_CONF_STR, condition1);
conf.set(serdeConstants.LIST_COLUMNS, "visitor_id,sentiment,tracking_id");
conf.set(JdbcStorageConfig.COLUMN_MAPPING.getPropertyName(),
"visitor_id=vid, sentiment=sentiment, tracking_id=tracking_id");
String condition = QueryConditionBuilder.getInstance().buildCondition(conf);
assertThat(condition, is(notNullValue()));
assertThat(condition, is(equalToIgnoringWhiteSpace("(vid = 'x')")));
}
@Test
public void testSimpleCondition_withDateType() {
Configuration conf = new Configuration();
conf.set(TableScanDesc.FILTER_EXPR_CONF_STR, condition1);
conf.set(serdeConstants.LIST_COLUMNS, "visitor_id,sentiment,tracking_id");
conf.set(JdbcStorageConfig.COLUMN_MAPPING.getPropertyName(),
"visitor_id=vid:date, sentiment=sentiment, tracking_id=tracking_id");
String condition = QueryConditionBuilder.getInstance().buildCondition(conf);
assertThat(condition, is(notNullValue()));
assertThat(condition, is(equalToIgnoringWhiteSpace("({d vid} = 'x')")));
}
@Test
public void testSimpleCondition_withVariedCaseMappings() {
Configuration conf = new Configuration();
conf.set(TableScanDesc.FILTER_EXPR_CONF_STR, condition1);
conf.set(serdeConstants.LIST_COLUMNS, "visitor_ID,sentiment,tracking_id");
conf.set(JdbcStorageConfig.COLUMN_MAPPING.getPropertyName(),
"visitor_id=VID:date, sentiment=sentiment, tracking_id=tracking_id");
String condition = QueryConditionBuilder.getInstance().buildCondition(conf);
assertThat(condition, is(notNullValue()));
assertThat(condition, is(equalToIgnoringWhiteSpace("({d vid} = 'x')")));
}
@Test
public void testMultipleConditions_noTranslation() {
Configuration conf = new Configuration();
conf.set(TableScanDesc.FILTER_EXPR_CONF_STR, condition2);
conf.set(serdeConstants.LIST_COLUMNS, "visitor_id,sentiment,tracking_id");
String condition = QueryConditionBuilder.getInstance().buildCondition(conf);
assertThat(condition, is(notNullValue()));
assertThat(condition, is(equalToIgnoringWhiteSpace("((visitor_id = 'x') and (sentiment = 'y'))")));
}
@Test
public void testMultipleConditions_withTranslation() {
Configuration conf = new Configuration();
conf.set(TableScanDesc.FILTER_EXPR_CONF_STR, condition2);
conf.set(serdeConstants.LIST_COLUMNS, "visitor_id,sentiment,tracking_id");
conf.set(JdbcStorageConfig.COLUMN_MAPPING.getPropertyName(), "visitor_id=v,sentiment=s,tracking_id=t");
String condition = QueryConditionBuilder.getInstance().buildCondition(conf);
assertThat(condition, is(notNullValue()));
assertThat(condition, is(equalToIgnoringWhiteSpace("((v = 'x') and (s = 'y'))")));
}
@Test
public void testWithNullConf() {
String condition = QueryConditionBuilder.getInstance().buildCondition(null);
assertThat(condition, is(notNullValue()));
assertThat(condition.trim().isEmpty(), is(true));
}
@Test
public void testWithUndefinedFilterExpr() {
Configuration conf = new Configuration();
conf.set(serdeConstants.LIST_COLUMNS, "visitor_id,sentiment,tracking_id");
conf.set(JdbcStorageConfig.COLUMN_MAPPING.getPropertyName(), "visitor_id=v,sentiment=s,tracking_id=t");
String condition = QueryConditionBuilder.getInstance().buildCondition(conf);
assertThat(condition, is(notNullValue()));
assertThat(condition.trim().isEmpty(), is(true));
}
}