| /* |
| * 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. |
| */ |
| |
| package org.apache.iotdb.db.queryengine.plan.execution.config; |
| |
| import org.apache.iotdb.commons.exception.IoTDBException; |
| import org.apache.iotdb.commons.utils.TestOnly; |
| import org.apache.iotdb.db.queryengine.common.MPPQueryContext; |
| import org.apache.iotdb.db.queryengine.common.header.DatasetHeader; |
| import org.apache.iotdb.db.queryengine.execution.QueryStateMachine; |
| import org.apache.iotdb.db.queryengine.plan.analyze.QueryType; |
| import org.apache.iotdb.db.queryengine.plan.execution.ExecutionResult; |
| import org.apache.iotdb.db.queryengine.plan.execution.IQueryExecution; |
| import org.apache.iotdb.db.queryengine.plan.execution.config.executor.ClusterConfigTaskExecutor; |
| import org.apache.iotdb.db.queryengine.plan.execution.config.executor.IConfigTaskExecutor; |
| import org.apache.iotdb.db.queryengine.plan.statement.StatementType; |
| import org.apache.iotdb.rpc.RpcUtils; |
| import org.apache.iotdb.rpc.StatementExecutionException; |
| import org.apache.iotdb.rpc.TSStatusCode; |
| import org.apache.iotdb.tsfile.read.common.block.TsBlock; |
| import org.apache.iotdb.tsfile.read.common.block.column.TsBlockSerde; |
| |
| import com.google.common.util.concurrent.FutureCallback; |
| import com.google.common.util.concurrent.Futures; |
| import com.google.common.util.concurrent.ListenableFuture; |
| import com.google.common.util.concurrent.SettableFuture; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.validation.constraints.NotNull; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.Optional; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.ExecutorService; |
| |
| public class ConfigExecution implements IQueryExecution { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(ConfigExecution.class); |
| |
| private static final TsBlockSerde serde = new TsBlockSerde(); |
| |
| private final MPPQueryContext context; |
| private final ExecutorService executor; |
| |
| private final QueryStateMachine stateMachine; |
| private final SettableFuture<ConfigTaskResult> taskFuture; |
| private TsBlock resultSet; |
| private DatasetHeader datasetHeader; |
| private boolean resultSetConsumed; |
| private final IConfigTask task; |
| private final IConfigTaskExecutor configTaskExecutor; |
| |
| private final StatementType statementType; |
| private long totalExecutionTime; |
| |
| public ConfigExecution( |
| MPPQueryContext context, |
| StatementType statementType, |
| ExecutorService executor, |
| IConfigTask task) { |
| this.context = context; |
| this.statementType = statementType; |
| this.executor = executor; |
| this.stateMachine = new QueryStateMachine(context.getQueryId(), executor); |
| this.taskFuture = SettableFuture.create(); |
| this.task = task; |
| this.resultSetConsumed = false; |
| configTaskExecutor = ClusterConfigTaskExecutor.getInstance(); |
| } |
| |
| @TestOnly |
| public ConfigExecution(MPPQueryContext context, ExecutorService executor, IConfigTask task) { |
| this(context, StatementType.NULL, executor, task); |
| } |
| |
| @Override |
| public void start() { |
| try { |
| ListenableFuture<ConfigTaskResult> future = task.execute(configTaskExecutor); |
| Futures.addCallback( |
| future, |
| new FutureCallback<ConfigTaskResult>() { |
| @Override |
| public void onSuccess(ConfigTaskResult taskRet) { |
| stateMachine.transitionToFinished(); |
| taskFuture.set(taskRet); |
| } |
| |
| @Override |
| public void onFailure(@NotNull Throwable throwable) { |
| fail(throwable); |
| } |
| }, |
| executor); |
| } catch (Throwable e) { |
| if (e instanceof InterruptedException) { |
| Thread.currentThread().interrupt(); |
| } |
| fail(e); |
| } |
| } |
| |
| private void fail(Throwable cause) { |
| LOGGER.warn("Failures happened during running ConfigExecution.", cause); |
| stateMachine.transitionToFailed(cause); |
| ConfigTaskResult result; |
| if (cause instanceof IoTDBException) { |
| result = |
| new ConfigTaskResult(TSStatusCode.representOf(((IoTDBException) cause).getErrorCode())); |
| } else if (cause instanceof StatementExecutionException) { |
| result = |
| new ConfigTaskResult( |
| TSStatusCode.representOf(((StatementExecutionException) cause).getStatusCode())); |
| } else { |
| result = new ConfigTaskResult(TSStatusCode.INTERNAL_SERVER_ERROR); |
| } |
| taskFuture.set(result); |
| } |
| |
| @Override |
| public void stop(Throwable t) { |
| // do nothing |
| } |
| |
| @Override |
| public void stopAndCleanup() { |
| // do nothing |
| } |
| |
| @Override |
| public void stopAndCleanup(Throwable t) { |
| // do nothing |
| } |
| |
| @Override |
| public void cancel() { |
| throw new UnsupportedOperationException(getClass().getName()); |
| } |
| |
| @Override |
| public ExecutionResult getStatus() { |
| try { |
| ConfigTaskResult taskResult = taskFuture.get(); |
| TSStatusCode statusCode = taskResult.getStatusCode(); |
| resultSet = taskResult.getResultSet(); |
| datasetHeader = taskResult.getResultSetHeader(); |
| String message = |
| statusCode == TSStatusCode.SUCCESS_STATUS ? "" : stateMachine.getFailureMessage(); |
| return new ExecutionResult(context.getQueryId(), RpcUtils.getStatus(statusCode, message)); |
| } catch (InterruptedException | ExecutionException e) { |
| if (e instanceof InterruptedException) { |
| Thread.currentThread().interrupt(); |
| } |
| return new ExecutionResult( |
| context.getQueryId(), |
| RpcUtils.getStatus(TSStatusCode.QUERY_PROCESS_ERROR, e.getMessage())); |
| } |
| } |
| |
| @Override |
| public Optional<TsBlock> getBatchResult() { |
| if (!resultSetConsumed) { |
| resultSetConsumed = true; |
| return Optional.of(resultSet); |
| } |
| return Optional.empty(); |
| } |
| |
| @Override |
| public Optional<ByteBuffer> getByteBufferBatchResult() throws IoTDBException { |
| if (!resultSetConsumed) { |
| resultSetConsumed = true; |
| try { |
| return Optional.of(serde.serialize(resultSet)); |
| } catch (IOException e) { |
| throw new IoTDBException(e, TSStatusCode.TSBLOCK_SERIALIZE_ERROR.getStatusCode()); |
| } |
| } |
| return Optional.empty(); |
| } |
| |
| // According to the execution process of ConfigExecution, there is only one TsBlock for |
| // this execution. Thus, the hasNextResult will be false once the TsBlock is consumed |
| @Override |
| public boolean hasNextResult() { |
| return !resultSetConsumed && resultSet != null; |
| } |
| |
| @Override |
| public int getOutputValueColumnCount() { |
| return datasetHeader.getOutputValueColumnCount(); |
| } |
| |
| @Override |
| public DatasetHeader getDatasetHeader() { |
| return datasetHeader; |
| } |
| |
| @Override |
| public boolean isQuery() { |
| return context.getQueryType() == QueryType.READ; |
| } |
| |
| @Override |
| public String getQueryId() { |
| return context.getQueryId().getId(); |
| } |
| |
| @Override |
| public long getStartExecutionTime() { |
| return context.getStartTime(); |
| } |
| |
| @Override |
| public void recordExecutionTime(long executionTime) { |
| totalExecutionTime += executionTime; |
| } |
| |
| @Override |
| public long getTotalExecutionTime() { |
| return totalExecutionTime; |
| } |
| |
| @Override |
| public Optional<String> getExecuteSQL() { |
| return Optional.ofNullable(context.getSql()); |
| } |
| |
| @Override |
| public String getStatementType() { |
| return statementType.name(); |
| } |
| } |