/*
* 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 com.facebook.presto.hive;
import com.facebook.presto.spi.ConnectorSession;
import com.facebook.presto.spi.SchemaTableName;
import com.facebook.presto.spi.type.StandardTypes;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.ImmutableMap;
import io.airlift.json.ObjectMapperProvider;
import org.testng.annotations.Test;
import java.util.Locale;
import java.util.Map;
import static com.facebook.presto.spi.type.TimeZoneKey.UTC_KEY;
import static io.airlift.testing.Assertions.assertEqualsIgnoreOrder;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
@Test
public class TestJsonHiveHandles
{
private static final ConnectorSession SESSION = new ConnectorSession("user", "test", "catalog", "test", UTC_KEY, Locale.ENGLISH, null, null);
private static final Map<String, Object> TABLE_HANDLE_AS_MAP = ImmutableMap.<String, Object>of(
"clientId", "hive",
"schemaName", "hive_schema",
"tableName", "hive_table",
"session", ImmutableMap.builder()
.put("user", SESSION.getUser())
.put("source", SESSION.getSource())
.put("catalog", SESSION.getCatalog())
.put("schema", SESSION.getSchema())
.put("timeZoneKey", (int) SESSION.getTimeZoneKey().getKey())
.put("locale", SESSION.getLocale().toString())
.put("startTime", SESSION.getStartTime())
.build());
private static final Map<String, Object> COLUMN_HANDLE_AS_MAP = ImmutableMap.<String, Object>builder()
.put("clientId", "hive")
.put("name", "column")
.put("ordinalPosition", 42)
.put("hiveType", "float")
.put("typeName", "double")
.put("hiveColumnIndex", -1)
.put("partitionKey", true)
.build();
private final ObjectMapper objectMapper = new ObjectMapperProvider().get();
@Test
public void testTableHandleSerialize()
throws Exception
{
HiveTableHandle tableHandle = new HiveTableHandle("hive", "hive_schema", "hive_table", SESSION);
assertTrue(objectMapper.canSerialize(HiveTableHandle.class));
String json = objectMapper.writeValueAsString(tableHandle);
testJsonEquals(json, TABLE_HANDLE_AS_MAP);
}
@Test
public void testTableHandleDeserialize()
throws Exception
{
String json = objectMapper.writeValueAsString(TABLE_HANDLE_AS_MAP);
HiveTableHandle tableHandle = objectMapper.readValue(json, HiveTableHandle.class);
assertEquals(tableHandle.getClientId(), "hive");
assertEquals(tableHandle.getSchemaName(), "hive_schema");
assertEquals(tableHandle.getTableName(), "hive_table");
assertEquals(tableHandle.getSchemaTableName(), new SchemaTableName("hive_schema", "hive_table"));
}
@Test
public void testColumnHandleSerialize()
throws Exception
{
HiveColumnHandle columnHandle = new HiveColumnHandle("hive", "column", 42, HiveType.HIVE_FLOAT, StandardTypes.DOUBLE, -1, true);
assertTrue(objectMapper.canSerialize(HiveColumnHandle.class));
String json = objectMapper.writeValueAsString(columnHandle);
testJsonEquals(json, COLUMN_HANDLE_AS_MAP);
}
@Test
public void testColumnHandleDeserialize()
throws Exception
{
String json = objectMapper.writeValueAsString(COLUMN_HANDLE_AS_MAP);
HiveColumnHandle columnHandle = objectMapper.readValue(json, HiveColumnHandle.class);
assertEquals(columnHandle.getName(), "column");
assertEquals(columnHandle.getOrdinalPosition(), 42);
assertEquals(columnHandle.getHiveType(), HiveType.HIVE_FLOAT);
assertEquals(columnHandle.getHiveColumnIndex(), -1);
assertEquals(columnHandle.isPartitionKey(), true);
}
private void testJsonEquals(String json, Map<String, Object> expectedMap)
throws Exception
{
Map<String, Object> jsonMap = objectMapper.readValue(json, new TypeReference<Map<String, Object>>() {});
assertEqualsIgnoreOrder(jsonMap.entrySet(), expectedMap.entrySet());
}
}