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Add support for creating view with properties in Hive
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70 changes: 70 additions & 0 deletions
70
plugin/trino-hive/src/main/java/io/trino/plugin/hive/HiveViewProperties.java
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/* | ||
* 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 io.trino.plugin.hive; | ||
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import com.google.common.collect.ImmutableList; | ||
import com.google.inject.Inject; | ||
import io.trino.spi.TrinoException; | ||
import io.trino.spi.session.PropertyMetadata; | ||
import io.trino.spi.type.MapType; | ||
import io.trino.spi.type.TypeManager; | ||
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import java.util.List; | ||
import java.util.Map; | ||
import java.util.Optional; | ||
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import static io.trino.spi.StandardErrorCode.INVALID_VIEW_PROPERTY; | ||
import static io.trino.spi.type.VarcharType.VARCHAR; | ||
import static java.lang.String.format; | ||
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public class HiveViewProperties | ||
{ | ||
public static final String EXTRA_PROPERTIES = "extra_properties"; | ||
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private final List<PropertyMetadata<?>> viewProperties; | ||
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@Inject | ||
public HiveViewProperties(TypeManager typeManager) | ||
{ | ||
viewProperties = ImmutableList.of( | ||
new PropertyMetadata<>( | ||
EXTRA_PROPERTIES, | ||
"Extra view properties", | ||
new MapType(VARCHAR, VARCHAR, typeManager.getTypeOperators()), | ||
Map.class, | ||
null, | ||
true, // currently not shown in SHOW CREATE VIEW | ||
value -> { | ||
Map<String, String> extraProperties = (Map<String, String>) value; | ||
if (extraProperties.containsValue(null)) { | ||
throw new TrinoException(INVALID_VIEW_PROPERTY, format("Extra view property value cannot be null '%s'", extraProperties)); | ||
} | ||
if (extraProperties.containsKey(null)) { | ||
throw new TrinoException(INVALID_VIEW_PROPERTY, format("Extra view property key cannot be null '%s'", extraProperties)); | ||
} | ||
return extraProperties; | ||
}, | ||
value -> value)); | ||
} | ||
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public List<PropertyMetadata<?>> getViewProperties() | ||
{ | ||
return viewProperties; | ||
} | ||
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public static Optional<Map<String, String>> getExtraProperties(Map<String, Object> tableProperties) | ||
{ | ||
return Optional.ofNullable((Map<String, String>) tableProperties.get(EXTRA_PROPERTIES)); | ||
} | ||
} |
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