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[FLINK-14841][table] add create and drop function ddl in SQL parser
this closes apache#10240.
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131 changes: 131 additions & 0 deletions
131
...ble/flink-sql-parser/src/main/java/org/apache/flink/sql/parser/ddl/SqlCreateFunction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| /* | ||
| * 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.sql.parser.ddl; | ||
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| import org.apache.flink.sql.parser.ExtendedSqlNode; | ||
| import org.apache.flink.sql.parser.error.SqlValidateException; | ||
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| import org.apache.calcite.sql.SqlCharStringLiteral; | ||
| import org.apache.calcite.sql.SqlCreate; | ||
| import org.apache.calcite.sql.SqlIdentifier; | ||
| import org.apache.calcite.sql.SqlKind; | ||
| import org.apache.calcite.sql.SqlNode; | ||
| import org.apache.calcite.sql.SqlOperator; | ||
| import org.apache.calcite.sql.SqlSpecialOperator; | ||
| import org.apache.calcite.sql.SqlWriter; | ||
| import org.apache.calcite.sql.parser.SqlParserPos; | ||
| import org.apache.calcite.util.ImmutableNullableList; | ||
|
|
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| import javax.annotation.Nonnull; | ||
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| import java.util.List; | ||
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| import static java.util.Objects.requireNonNull; | ||
|
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| /** | ||
| * CREATE FUNCTION DDL sql call. | ||
| */ | ||
| public class SqlCreateFunction extends SqlCreate implements ExtendedSqlNode { | ||
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| public static final SqlSpecialOperator OPERATOR = new SqlSpecialOperator("CREATE FUNCTION", SqlKind.CREATE_FUNCTION); | ||
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| private final SqlIdentifier functionIdentifier; | ||
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| private final SqlCharStringLiteral functionClassName; | ||
|
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| private final String functionLanguage; | ||
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| private final boolean isTemporary; | ||
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| private final boolean isSystemFunction; | ||
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| public SqlCreateFunction( | ||
| SqlParserPos pos, | ||
| SqlIdentifier functionIdentifier, | ||
| SqlCharStringLiteral functionClassName, | ||
| String functionLanguage, | ||
| boolean ifNotExists, | ||
| boolean isTemporary, | ||
| boolean isSystemFunction) { | ||
| super(OPERATOR, pos, false, ifNotExists); | ||
| this.functionIdentifier = requireNonNull(functionIdentifier); | ||
| this.functionClassName = requireNonNull(functionClassName); | ||
| this.isSystemFunction = requireNonNull(isSystemFunction); | ||
| this.isTemporary = isTemporary; | ||
| this.functionLanguage = functionLanguage; | ||
| } | ||
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| @Override | ||
| public SqlOperator getOperator() { | ||
| return OPERATOR; | ||
| } | ||
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| @Nonnull | ||
| @Override | ||
| public List<SqlNode> getOperandList() { | ||
| return ImmutableNullableList.of(functionIdentifier, functionClassName); | ||
| } | ||
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| @Override | ||
| public void unparse(SqlWriter writer, int leftPrec, int rightPrec) { | ||
| writer.keyword("CREATE"); | ||
| if (isTemporary) { | ||
| writer.keyword("TEMPORARY"); | ||
| } | ||
| if (isSystemFunction) { | ||
| writer.keyword("SYSTEM"); | ||
| } | ||
| writer.keyword("FUNCTION"); | ||
| if (ifNotExists) { | ||
| writer.keyword("IF NOT EXISTS"); | ||
| } | ||
| functionIdentifier.unparse(writer, leftPrec, rightPrec); | ||
| writer.keyword("AS"); | ||
| functionClassName.unparse(writer, leftPrec, rightPrec); | ||
| if (functionLanguage != null) { | ||
| writer.keyword("LANGUAGE"); | ||
| writer.keyword(functionLanguage); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public void validate() throws SqlValidateException { | ||
| // no-op | ||
| } | ||
|
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| public boolean isIfNotExists() { | ||
| return ifNotExists; | ||
| } | ||
|
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| public boolean isSystemFunction() { | ||
| return isSystemFunction; | ||
| } | ||
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| public SqlCharStringLiteral getFunctionClassName() { | ||
| return this.functionClassName; | ||
| } | ||
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| public String getFunctionLanguage() { | ||
| return this.functionLanguage; | ||
| } | ||
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| public String[] getFunctionIdentifier() { | ||
| return functionIdentifier.names.toArray(new String[0]); | ||
| } | ||
| } |
98 changes: 98 additions & 0 deletions
98
...table/flink-sql-parser/src/main/java/org/apache/flink/sql/parser/ddl/SqlDropFunction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| /* | ||
| * 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.sql.parser.ddl; | ||
|
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| import org.apache.flink.sql.parser.ExtendedSqlNode; | ||
| import org.apache.flink.sql.parser.error.SqlValidateException; | ||
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| import org.apache.calcite.sql.SqlDrop; | ||
| import org.apache.calcite.sql.SqlIdentifier; | ||
| import org.apache.calcite.sql.SqlKind; | ||
| import org.apache.calcite.sql.SqlNode; | ||
| import org.apache.calcite.sql.SqlSpecialOperator; | ||
| import org.apache.calcite.sql.SqlWriter; | ||
| import org.apache.calcite.sql.parser.SqlParserPos; | ||
| import org.apache.calcite.util.ImmutableNullableList; | ||
|
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| import javax.annotation.Nonnull; | ||
|
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| import java.util.List; | ||
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| import static java.util.Objects.requireNonNull; | ||
|
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| /** | ||
| * DROP FUNCTION DDL sql call. | ||
| */ | ||
| public class SqlDropFunction extends SqlDrop implements ExtendedSqlNode { | ||
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| public static final SqlSpecialOperator OPERATOR = new SqlSpecialOperator("DROP FUNCTION", SqlKind.DROP_FUNCTION); | ||
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| private final SqlIdentifier functionIdentifier; | ||
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| private final boolean isTemporary; | ||
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| private final boolean isSystemFunction; | ||
|
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| public SqlDropFunction( | ||
| SqlParserPos pos, | ||
| SqlIdentifier functionIdentifier, | ||
| boolean ifExists, | ||
| boolean isTemporary, | ||
| boolean isSystemFunction) { | ||
| super(OPERATOR, pos, ifExists); | ||
| this.functionIdentifier = requireNonNull(functionIdentifier); | ||
| this.isSystemFunction = requireNonNull(isSystemFunction); | ||
| this.isTemporary = isTemporary; | ||
| } | ||
|
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| @Nonnull | ||
| @Override | ||
| public List<SqlNode> getOperandList() { | ||
| return ImmutableNullableList.of(functionIdentifier); | ||
| } | ||
|
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| @Override | ||
| public void unparse(SqlWriter writer, int leftPrec, int rightPrec) { | ||
| writer.keyword("DROP"); | ||
| if (isTemporary) { | ||
| writer.keyword("TEMPORARY"); | ||
| } | ||
| if (isSystemFunction) { | ||
| writer.keyword("SYSTEM"); | ||
| } | ||
| writer.keyword("FUNCTION"); | ||
| if (ifExists) { | ||
| writer.keyword("IF EXISTS"); | ||
| } | ||
| functionIdentifier.unparse(writer, leftPrec, rightPrec); | ||
| } | ||
|
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| @Override | ||
| public void validate() throws SqlValidateException { | ||
| // no-op | ||
| } | ||
|
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| public String[] getFunctionIdentifier() { | ||
| return functionIdentifier.names.toArray(new String[0]); | ||
| } | ||
|
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| public boolean getIfExists() { | ||
| return this.ifExists; | ||
| } | ||
| } |
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