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70 changes: 70 additions & 0 deletions
70
...lugins/spark/src/main/java/org/apache/linkis/engineplugin/spark/DirectPushRestfulApi.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| /* | ||
| * 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.linkis.engineplugin.spark; | ||
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| import org.apache.linkis.engineplugin.spark.utils.DataFrameResponse; | ||
| import org.apache.linkis.engineplugin.spark.utils.DirectPushCache; | ||
| import org.apache.linkis.server.Message; | ||
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| import org.springframework.web.bind.annotation.RequestBody; | ||
| import org.springframework.web.bind.annotation.RequestMapping; | ||
| import org.springframework.web.bind.annotation.RequestMethod; | ||
| import org.springframework.web.bind.annotation.RestController; | ||
|
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| import javax.servlet.http.HttpServletRequest; | ||
|
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| import java.util.Map; | ||
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| import io.swagger.annotations.Api; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| @Api(tags = "DirectPush") | ||
| @RestController | ||
| @RequestMapping(path = "directpush") | ||
| public class DirectPushRestfulApi { | ||
| private static final Logger logger = LoggerFactory.getLogger(DirectPushRestfulApi.class); | ||
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| @RequestMapping(path = "pull", method = RequestMethod.POST) | ||
| public Message getDirectPushResult( | ||
| HttpServletRequest req, @RequestBody Map<String, Object> json) { | ||
| Message message = null; | ||
| try { | ||
| String taskId = (String) json.getOrDefault("taskId", null); | ||
| if (taskId == null) { | ||
| message = Message.error("taskId is null"); | ||
| return message; | ||
| } | ||
| int fetchSize = (int) json.getOrDefault("fetchSize", 1000); | ||
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| DataFrameResponse response = DirectPushCache.fetchResultSetOfDataFrame(taskId, fetchSize); | ||
| if (response.dataFrame() == null) { | ||
| message = Message.error("No result found for taskId: " + taskId); | ||
| } else { | ||
| message = | ||
| Message.ok() | ||
| .data("data", response.dataFrame()) | ||
| .data("hasMoreData", response.hasMoreData()); | ||
| } | ||
| } catch (Exception e) { | ||
| logger.error("Failed to get direct push result", e); | ||
| message = Message.error("Failed to get direct push result: " + e.getMessage()); | ||
| } | ||
| return message; | ||
| } | ||
| } |
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101 changes: 101 additions & 0 deletions
101
...-plugins/spark/src/main/scala/org/apache/linkis/engineplugin/spark/utils/ArrowUtils.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| /* | ||
| * 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.linkis.engineplugin.spark.utils | ||
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| import org.apache.arrow.memory.RootAllocator | ||
| import org.apache.arrow.vector._ | ||
| import org.apache.arrow.vector.ipc.ArrowStreamWriter | ||
| import org.apache.spark.sql.DataFrame | ||
| import org.apache.spark.sql.types._ | ||
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| import java.io.ByteArrayOutputStream | ||
| import java.util | ||
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| object ArrowUtils { | ||
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| def toArrow(df: DataFrame): Array[Byte] = { | ||
| val allocator = new RootAllocator(Long.MaxValue) | ||
| val (root, fieldVectors) = createArrowVectors(df, allocator) | ||
| val outStream = new ByteArrayOutputStream() | ||
| val writer = new ArrowStreamWriter(root, null, outStream) | ||
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| writer.start() | ||
| writer.writeBatch() | ||
| writer.end() | ||
| writer.close() | ||
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| val arrowBytes = outStream.toByteArray | ||
| fieldVectors.foreach(_.close()) | ||
| allocator.close() | ||
| arrowBytes | ||
| } | ||
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| private def createArrowVectors( | ||
| df: DataFrame, | ||
| allocator: RootAllocator | ||
| ): (VectorSchemaRoot, List[FieldVector]) = { | ||
| val schema = df.schema | ||
| val fieldVectors = schema.fields.map { field => | ||
| field.dataType match { | ||
| case IntegerType => | ||
| val vector = new IntVector(field.name, allocator) | ||
| vector.allocateNew(df.count().toInt) | ||
| vector | ||
| case LongType => | ||
| val vector = new BigIntVector(field.name, allocator) | ||
| vector.allocateNew(df.count().toInt) | ||
| vector | ||
| case DoubleType => | ||
| val vector = new Float8Vector(field.name, allocator) | ||
| vector.allocateNew(df.count().toInt) | ||
| vector | ||
| case BooleanType => | ||
| val vector = new BitVector(field.name, allocator) | ||
| vector.allocateNew(df.count().toInt) | ||
| vector | ||
| case _ => | ||
| val vector: VarCharVector = new VarCharVector(field.name, allocator) | ||
| vector.allocateNew(df.count().toInt) | ||
| vector | ||
| } | ||
| }.toList | ||
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| df.collect().zipWithIndex.foreach { case (row, i) => | ||
| for (j <- fieldVectors.indices) { | ||
| val vector = fieldVectors(j) | ||
| row.schema.fields(j).dataType match { | ||
| case IntegerType => vector.asInstanceOf[IntVector].setSafe(i, row.getInt(j)) | ||
| case LongType => vector.asInstanceOf[BigIntVector].setSafe(i, row.getLong(j)) | ||
| case DoubleType => vector.asInstanceOf[Float8Vector].setSafe(i, row.getDouble(j)) | ||
| case BooleanType => | ||
| vector.asInstanceOf[BitVector].setSafe(i, if (row.getBoolean(j)) 1 else 0) | ||
| case _ => | ||
| vector.asInstanceOf[VarCharVector].setSafe(i, row.getString(j).getBytes) | ||
| } | ||
| vector.setValueCount(vector.getValueCount + 1) | ||
| } | ||
| } | ||
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| val javaFieldVectors: util.ArrayList[FieldVector] = new util.ArrayList[FieldVector]() | ||
| fieldVectors.foreach(javaFieldVectors.add) | ||
| val root = new VectorSchemaRoot(javaFieldVectors) | ||
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| (root, fieldVectors) | ||
| } | ||
|
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| } |
65 changes: 65 additions & 0 deletions
65
...ins/spark/src/main/scala/org/apache/linkis/engineplugin/spark/utils/DirectPushCache.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| /* | ||
| * 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.linkis.engineplugin.spark.utils | ||
|
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| import org.apache.linkis.engineconn.common.conf.{EngineConnConf, EngineConnConstant} | ||
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| import org.apache.spark.sql.DataFrame | ||
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| import java.util.concurrent.TimeUnit | ||
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| import com.google.common.cache.{Cache, CacheBuilder} | ||
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| case class DataFrameResponse(dataFrame: DataFrame, hasMoreData: Boolean) | ||
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| object DirectPushCache { | ||
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| private val resultSet: Cache[String, DataFrame] = CacheBuilder | ||
| .newBuilder() | ||
| .expireAfterAccess(EngineConnConf.ENGINE_TASK_EXPIRE_TIME.getValue, TimeUnit.MILLISECONDS) | ||
| .maximumSize(EngineConnConstant.MAX_TASK_NUM) | ||
| .build() | ||
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| // This method is not idempotent. After fetching a result set of size fetchSize each time, the corresponding results will be removed from the cache. | ||
| def fetchResultSetOfDataFrame(taskId: String, fetchSize: Int): DataFrameResponse = { | ||
| val df = DirectPushCache.resultSet.getIfPresent(taskId) | ||
| if (df == null) { | ||
| throw new IllegalAccessException(s"Task $taskId not exists in resultSet cache.") | ||
| } else { | ||
| val batchDf = df.limit(fetchSize) | ||
| if (batchDf.count() < fetchSize) { | ||
| // All the data in df has been consumed. | ||
| DirectPushCache.resultSet.invalidate(taskId) | ||
| DataFrameResponse(batchDf, hasMoreData = false) | ||
| } else { | ||
| // Update df with consumed one. | ||
| DirectPushCache.resultSet.put(taskId, df.except(batchDf)) | ||
| DataFrameResponse(batchDf, hasMoreData = true) | ||
| } | ||
| } | ||
| } | ||
|
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| def isTaskCached(taskId: String): Boolean = { | ||
| DirectPushCache.resultSet.getIfPresent(taskId) != null | ||
| } | ||
|
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| def submitExecuteResult(taskId: String, df: DataFrame): Unit = { | ||
| DirectPushCache.resultSet.put(taskId, df) | ||
| } | ||
|
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| } |
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