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[FLINK-35194][table] Support describe job with job id
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66 changes: 66 additions & 0 deletions
66
...-table/flink-sql-parser/src/main/java/org/apache/flink/sql/parser/dql/SqlDescribeJob.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| /* | ||
| * 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.dql; | ||
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| import org.apache.calcite.sql.SqlCall; | ||
| import org.apache.calcite.sql.SqlCharStringLiteral; | ||
| 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.NlsString; | ||
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| import java.util.Collections; | ||
| import java.util.List; | ||
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| /** DESCRIBE | DESC <JOB_ID> sql call. */ | ||
| public class SqlDescribeJob extends SqlCall { | ||
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| public static final SqlOperator OPERATOR = | ||
| new SqlSpecialOperator("DESCRIBE JOB", SqlKind.OTHER); | ||
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| private final SqlCharStringLiteral jobId; | ||
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| public SqlDescribeJob(SqlParserPos pos, SqlCharStringLiteral jobId) { | ||
| super(pos); | ||
| this.jobId = jobId; | ||
| } | ||
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| public String getJobId() { | ||
| return jobId.getValueAs(NlsString.class).getValue(); | ||
| } | ||
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| @Override | ||
| public SqlOperator getOperator() { | ||
| return OPERATOR; | ||
| } | ||
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| @Override | ||
| public List<SqlNode> getOperandList() { | ||
| return Collections.singletonList(jobId); | ||
| } | ||
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| @Override | ||
| public void unparse(SqlWriter writer, int leftPrec, int rightPrec) { | ||
| writer.keyword("DESCRIBE JOB"); | ||
| jobId.unparse(writer, leftPrec, rightPrec); | ||
| } | ||
| } |
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52 changes: 52 additions & 0 deletions
52
...pi-java/src/main/java/org/apache/flink/table/operations/command/DescribeJobOperation.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| /* | ||
| * 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.table.operations.command; | ||
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| import org.apache.flink.annotation.Internal; | ||
| import org.apache.flink.table.api.internal.TableResultInternal; | ||
| import org.apache.flink.table.operations.ExecutableOperation; | ||
| import org.apache.flink.table.operations.Operation; | ||
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| /** Operation to describe a DESCRIBE JOB statement. */ | ||
| @Internal | ||
| public class DescribeJobOperation implements Operation, ExecutableOperation { | ||
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| private final String jobId; | ||
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| public DescribeJobOperation(String jobId) { | ||
| this.jobId = jobId; | ||
| } | ||
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| public String getJobId() { | ||
| return jobId; | ||
| } | ||
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| @Override | ||
| public String asSummaryString() { | ||
| return String.format("DESCRIBE JOB '%s'", jobId); | ||
| } | ||
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| @Override | ||
| public TableResultInternal execute(Context ctx) { | ||
| // TODO: We may need to migrate the execution for ShowJobsOperation from SQL Gateway | ||
| // OperationExecutor to here. | ||
| throw new UnsupportedOperationException( | ||
| "DescribeJobOperation does not support ExecutableOperation yet."); | ||
| } | ||
| } |
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