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[FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect #118
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47 changes: 47 additions & 0 deletions
47
...in/java/org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeDialect.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you 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. | ||
| */ | ||
|
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| package org.apache.flink.connector.jdbc.databases.snowflake.dialect; | ||
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| import org.apache.flink.annotation.Internal; | ||
| import org.apache.flink.connector.jdbc.converter.JdbcRowConverter; | ||
| import org.apache.flink.connector.jdbc.dialect.AbstractPostgresCompatibleDialect; | ||
| import org.apache.flink.table.types.logical.RowType; | ||
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| import java.util.Optional; | ||
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| /** JDBC dialect for Snowflake. */ | ||
| @Internal | ||
| public class SnowflakeDialect extends AbstractPostgresCompatibleDialect { | ||
| private static final long serialVersionUID = 1L; | ||
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| @Override | ||
| public JdbcRowConverter getRowConverter(RowType rowType) { | ||
| return new SnowflakeRowConverter(rowType); | ||
| } | ||
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| @Override | ||
| public Optional<String> defaultDriverName() { | ||
| return Optional.of("net.snowflake.client.jdbc.SnowflakeDriver"); | ||
| } | ||
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| @Override | ||
| public String dialectName() { | ||
| return "Snowflake"; | ||
| } | ||
| } |
37 changes: 37 additions & 0 deletions
37
.../org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeDialectFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you 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. | ||
| */ | ||
|
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| package org.apache.flink.connector.jdbc.databases.snowflake.dialect; | ||
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| import org.apache.flink.annotation.Internal; | ||
| import org.apache.flink.connector.jdbc.dialect.JdbcDialect; | ||
| import org.apache.flink.connector.jdbc.dialect.JdbcDialectFactory; | ||
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| /** Factory for {@link SnowflakeDialect}. */ | ||
| @Internal | ||
| public class SnowflakeDialectFactory implements JdbcDialectFactory { | ||
| @Override | ||
| public boolean acceptsURL(String url) { | ||
| return url.startsWith("jdbc:snowflake:"); | ||
| } | ||
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| @Override | ||
| public JdbcDialect create() { | ||
| return new SnowflakeDialect(); | ||
| } | ||
| } | ||
45 changes: 45 additions & 0 deletions
45
...va/org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeRowConverter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you 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. | ||
| */ | ||
|
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| package org.apache.flink.connector.jdbc.databases.snowflake.dialect; | ||
|
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| import org.apache.flink.annotation.Internal; | ||
| import org.apache.flink.connector.jdbc.converter.AbstractPostgresCompatibleRowConverter; | ||
| import org.apache.flink.table.types.logical.RowType; | ||
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| import org.postgresql.jdbc.PgArray; | ||
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| /** | ||
| * Runtime converter that responsible to convert between JDBC object and Flink internal object for | ||
| * Snowflake. | ||
| */ | ||
| @Internal | ||
| public class SnowflakeRowConverter extends AbstractPostgresCompatibleRowConverter<PgArray> { | ||
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| private static final long serialVersionUID = 1L; | ||
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| @Override | ||
| public String converterName() { | ||
| return "Snowflake"; | ||
| } | ||
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| // https://docs.snowflake.com/en/sql-reference/intro-summary-data-types | ||
| public SnowflakeRowConverter(RowType rowType) { | ||
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|
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| super(rowType); | ||
| } | ||
| } | ||
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63 changes: 63 additions & 0 deletions
63
...org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeDialectTypeTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you 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. | ||
| */ | ||
|
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| package org.apache.flink.connector.jdbc.databases.snowflake.dialect; | ||
|
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| import org.apache.flink.connector.jdbc.dialect.JdbcDialectTypeTest; | ||
|
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| import java.util.Arrays; | ||
| import java.util.List; | ||
|
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| /** Tests for all DataTypes and Dialects of JDBC Snowflake connector. */ | ||
| public class SnowflakeDialectTypeTest extends JdbcDialectTypeTest { | ||
| @Override | ||
| protected String testDialect() { | ||
| return "snowflake"; | ||
| } | ||
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| @Override | ||
| protected List<JdbcDialectTypeTest.TestItem> testData() { | ||
| return Arrays.asList( | ||
| createTestItem("BOOLEAN"), | ||
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| createTestItem("TINYINT"), | ||
| createTestItem("SMALLINT"), | ||
| createTestItem("BIGINT"), | ||
| createTestItem("INT"), | ||
| createTestItem("INTEGER"), | ||
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| createTestItem("DECIMAL"), | ||
| createTestItem("NUMERIC"), | ||
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| createTestItem("DOUBLE"), | ||
| createTestItem("FLOAT"), | ||
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| createTestItem("DECIMAL(10, 4)"), | ||
| createTestItem("DECIMAL(38, 18)"), | ||
| createTestItem("VARCHAR"), | ||
| createTestItem("CHAR"), | ||
| createTestItem("VARBINARY"), | ||
| createTestItem("DATE"), | ||
| createTestItem("TIME"), | ||
| createTestItem("TIMESTAMP(3)"), | ||
| createTestItem("TIMESTAMP WITHOUT TIME ZONE"), | ||
| createTestItem("TIMESTAMP(1) WITHOUT TIME ZONE"), | ||
| // Not valid data | ||
| createTestItem("TIMESTAMP_LTZ(3)", "Unsupported type:TIMESTAMP_LTZ(3)")); | ||
| } | ||
| } |
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