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[SPARK-17926][SQL][STREAMING] Added json for statuses
## What changes were proposed in this pull request? StreamingQueryStatus exposed through StreamingQueryListener often needs to be recorded (similar to SparkListener events). This PR adds `.json` and `.prettyJson` to `StreamingQueryStatus`, `SourceStatus` and `SinkStatus`. ## How was this patch tested? New unit tests Author: Tathagata Das <[email protected]> Closes apache#15476 from tdas/SPARK-17926.
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sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamingQueryStatusSuite.scala
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| /* | ||
| * 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.spark.sql.streaming | ||
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| import org.apache.spark.SparkFunSuite | ||
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| class StreamingQueryStatusSuite extends SparkFunSuite { | ||
| test("toString") { | ||
| assert(StreamingQueryStatus.testStatus.sourceStatuses(0).toString === | ||
| """ | ||
| |Status of source MySource1 | ||
| | Available offset: #0 | ||
| | Input rate: 15.5 rows/sec | ||
| | Processing rate: 23.5 rows/sec | ||
| | Trigger details: | ||
| | numRows.input.source: 100 | ||
| | latency.getOffset.source: 10 | ||
| | latency.getBatch.source: 20 | ||
| """.stripMargin.trim, "SourceStatus.toString does not match") | ||
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| assert(StreamingQueryStatus.testStatus.sinkStatus.toString === | ||
| """ | ||
| |Status of sink MySink | ||
| | Committed offsets: [#1, -] | ||
| """.stripMargin.trim, "SinkStatus.toString does not match") | ||
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| assert(StreamingQueryStatus.testStatus.toString === | ||
| """ | ||
| |Status of query 'query' | ||
| | Query id: 1 | ||
| | Status timestamp: 123 | ||
| | Input rate: 15.5 rows/sec | ||
| | Processing rate 23.5 rows/sec | ||
| | Latency: 345.0 ms | ||
| | Trigger details: | ||
| | isDataPresentInTrigger: true | ||
| | isTriggerActive: true | ||
| | latency.getBatch.total: 20 | ||
| | latency.getOffset.total: 10 | ||
| | numRows.input.total: 100 | ||
| | triggerId: 5 | ||
| | Source statuses [1 source]: | ||
| | Source 1 - MySource1 | ||
| | Available offset: #0 | ||
| | Input rate: 15.5 rows/sec | ||
| | Processing rate: 23.5 rows/sec | ||
| | Trigger details: | ||
| | numRows.input.source: 100 | ||
| | latency.getOffset.source: 10 | ||
| | latency.getBatch.source: 20 | ||
| | Sink status - MySink | ||
| | Committed offsets: [#1, -] | ||
| """.stripMargin.trim, "StreamingQueryStatus.toString does not match") | ||
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| } | ||
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| test("json") { | ||
| assert(StreamingQueryStatus.testStatus.json === | ||
| """ | ||
| |{"sourceStatuses":[{"description":"MySource1","offsetDesc":"#0","inputRate":15.5, | ||
| |"processingRate":23.5,"triggerDetails":{"numRows.input.source":"100", | ||
| |"latency.getOffset.source":"10","latency.getBatch.source":"20"}}], | ||
| |"sinkStatus":{"description":"MySink","offsetDesc":"[#1, -]"}} | ||
| """.stripMargin.replace("\n", "").trim) | ||
| } | ||
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| test("prettyJson") { | ||
| assert( | ||
| StreamingQueryStatus.testStatus.prettyJson === | ||
| """ | ||
| |{ | ||
| | "sourceStatuses" : [ { | ||
| | "description" : "MySource1", | ||
| | "offsetDesc" : "#0", | ||
| | "inputRate" : 15.5, | ||
| | "processingRate" : 23.5, | ||
| | "triggerDetails" : { | ||
| | "numRows.input.source" : "100", | ||
| | "latency.getOffset.source" : "10", | ||
| | "latency.getBatch.source" : "20" | ||
| | } | ||
| | } ], | ||
| | "sinkStatus" : { | ||
| | "description" : "MySink", | ||
| | "offsetDesc" : "[#1, -]" | ||
| | } | ||
| |} | ||
| """.stripMargin.trim) | ||
| } | ||
| } |