/*
* 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.metadata;
import com.facebook.presto.connector.informationSchema.InformationSchemaHandleResolver;
import com.facebook.presto.connector.informationSchema.InformationSchemaTableHandle;
import com.facebook.presto.connector.system.SystemHandleResolver;
import com.facebook.presto.connector.system.SystemTableHandle;
import com.facebook.presto.spi.ConnectorHandleResolver;
import com.facebook.presto.spi.ConnectorTableHandle;
import com.facebook.presto.spi.SchemaTableName;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.ImmutableMap;
import com.google.inject.Binder;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.Module;
import com.google.inject.Scopes;
import com.google.inject.Stage;
import com.google.inject.multibindings.MapBinder;
import io.airlift.json.JsonModule;
import io.airlift.testing.Assertions;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import java.util.Map;
import static com.facebook.presto.SessionTestUtils.TEST_SESSION;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
@Test(singleThreaded = true)
public class TestJsonTableHandle
{
private static final Map<String, Object> SYSTEM_AS_MAP = ImmutableMap.<String, Object>of("type", "system",
"schemaName", "system_schema",
"tableName", "system_table");
private static final Map<String, Object> INFORMATION_SCHEMA_AS_MAP = ImmutableMap.<String, Object>of(
"type", "information_schema",
"session", ImmutableMap.<String, Object>builder()
.put("user", TEST_SESSION.getUser())
.put("source", TEST_SESSION.getSource())
.put("catalog", TEST_SESSION.getCatalog())
.put("schema", TEST_SESSION.getSchema())
.put("timeZoneKey", (int) TEST_SESSION.getTimeZoneKey().getKey())
.put("locale", TEST_SESSION.getLocale().toString())
.put("remoteUserAddress", TEST_SESSION.getRemoteUserAddress())
.put("userAgent", TEST_SESSION.getUserAgent())
.put("startTime", TEST_SESSION.getStartTime())
.build(),
"catalogName", "information_schema_catalog",
"schemaName", "information_schema_schema",
"tableName", "information_schema_table"
);
private ObjectMapper objectMapper;
@BeforeMethod
public void startUp()
{
Injector injector = Guice.createInjector(Stage.PRODUCTION,
new JsonModule(),
new HandleJsonModule(),
new Module()
{
@Override
public void configure(Binder binder)
{
MapBinder<String, ConnectorHandleResolver> connectorHandleResolverBinder = MapBinder.newMapBinder(binder, String.class, ConnectorHandleResolver.class);
connectorHandleResolverBinder.addBinding("system").to(SystemHandleResolver.class).in(Scopes.SINGLETON);
connectorHandleResolverBinder.addBinding("information_schema").to(InformationSchemaHandleResolver.class).in(Scopes.SINGLETON);
}
});
objectMapper = injector.getInstance(ObjectMapper.class);
}
@Test
public void testSystemSerialize()
throws Exception
{
SystemTableHandle internalHandle = new SystemTableHandle("system_schema", "system_table");
assertTrue(objectMapper.canSerialize(SystemTableHandle.class));
String json = objectMapper.writeValueAsString(internalHandle);
testJsonEquals(json, SYSTEM_AS_MAP);
}
@Test
public void testInformationSchemaSerialize()
throws Exception
{
InformationSchemaTableHandle informationSchemaTableHandle = new InformationSchemaTableHandle(
TEST_SESSION,
"information_schema_catalog",
"information_schema_schema",
"information_schema_table");
assertTrue(objectMapper.canSerialize(InformationSchemaTableHandle.class));
String json = objectMapper.writeValueAsString(informationSchemaTableHandle);
testJsonEquals(json, INFORMATION_SCHEMA_AS_MAP);
}
@Test
public void testSystemDeserialize()
throws Exception
{
String json = objectMapper.writeValueAsString(SYSTEM_AS_MAP);
ConnectorTableHandle tableHandle = objectMapper.readValue(json, ConnectorTableHandle.class);
assertEquals(tableHandle.getClass(), SystemTableHandle.class);
SystemTableHandle systemHandle = (SystemTableHandle) tableHandle;
assertEquals(systemHandle.getSchemaTableName(), new SchemaTableName("system_schema", "system_table"));
}
@Test
public void testInformationSchemaDeserialize()
throws Exception
{
String json = objectMapper.writeValueAsString(INFORMATION_SCHEMA_AS_MAP);
ConnectorTableHandle tableHandle = objectMapper.readValue(json, ConnectorTableHandle.class);
assertEquals(tableHandle.getClass(), InformationSchemaTableHandle.class);
InformationSchemaTableHandle informationSchemaHandle = (InformationSchemaTableHandle) tableHandle;
assertEquals(informationSchemaHandle.getCatalogName(), "information_schema_catalog");
assertEquals(informationSchemaHandle.getSchemaName(), "information_schema_schema");
assertEquals(informationSchemaHandle.getTableName(), "information_schema_table");
}
private void testJsonEquals(String json, Map<String, Object> expectedMap)
throws Exception
{
Map<String, Object> jsonMap = objectMapper.readValue(json, new TypeReference<Map<String, Object>>() {});
Assertions.assertEqualsIgnoreOrder(jsonMap.entrySet(), expectedMap.entrySet());
}
}