io.trino.metadata.TableSchema Maven / Gradle / Ivy
/*
* 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.metadata;
import io.trino.spi.catalog.CatalogName;
import io.trino.spi.connector.ColumnSchema;
import io.trino.spi.connector.ConnectorTableSchema;
import io.trino.spi.connector.SchemaTableName;
import java.util.List;
import static com.google.common.collect.MoreCollectors.toOptional;
import static java.util.Objects.requireNonNull;
public record TableSchema(CatalogName catalogName, ConnectorTableSchema tableSchema)
{
public TableSchema
{
requireNonNull(catalogName, "catalogName is null");
requireNonNull(tableSchema, "metadata is null");
}
public QualifiedObjectName qualifiedName()
{
return new QualifiedObjectName(catalogName.toString(), tableSchema.getTable().getSchemaName(), tableSchema.getTable().getTableName());
}
public SchemaTableName table()
{
return tableSchema.getTable();
}
public List columns()
{
return tableSchema.getColumns();
}
public ColumnSchema column(String name)
{
return tableSchema.getColumns().stream()
.filter(columnMetadata -> columnMetadata.getName().equals(name))
.collect(toOptional())
.orElseThrow(() -> new IllegalArgumentException("Invalid column name: " + name));
}
}