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SqlTaskExecutionFactory.java
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SqlTaskExecutionFactory.java
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/*
* Licensed 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 io.prestosql.execution;
import io.airlift.concurrent.SetThreadName;
import io.prestosql.Session;
import io.prestosql.event.SplitMonitor;
import io.prestosql.execution.buffer.OutputBuffer;
import io.prestosql.execution.executor.TaskExecutor;
import io.prestosql.memory.QueryContext;
import io.prestosql.operator.TaskContext;
import io.prestosql.sql.planner.LocalExecutionPlanner;
import io.prestosql.sql.planner.LocalExecutionPlanner.LocalExecutionPlan;
import io.prestosql.sql.planner.PlanFragment;
import io.prestosql.sql.planner.TypeProvider;
import java.util.List;
import java.util.OptionalInt;
import java.util.concurrent.Executor;
import static com.google.common.base.Throwables.throwIfUnchecked;
import static io.prestosql.execution.SqlTaskExecution.createSqlTaskExecution;
import static java.util.Objects.requireNonNull;
public class SqlTaskExecutionFactory
{
private final Executor taskNotificationExecutor;
private final TaskExecutor taskExecutor;
private final LocalExecutionPlanner planner;
private final SplitMonitor splitMonitor;
private final boolean perOperatorCpuTimerEnabled;
private final boolean cpuTimerEnabled;
public SqlTaskExecutionFactory(
Executor taskNotificationExecutor,
TaskExecutor taskExecutor,
LocalExecutionPlanner planner,
SplitMonitor splitMonitor,
TaskManagerConfig config)
{
this.taskNotificationExecutor = requireNonNull(taskNotificationExecutor, "taskNotificationExecutor is null");
this.taskExecutor = requireNonNull(taskExecutor, "taskExecutor is null");
this.planner = requireNonNull(planner, "planner is null");
this.splitMonitor = requireNonNull(splitMonitor, "splitMonitor is null");
requireNonNull(config, "config is null");
this.perOperatorCpuTimerEnabled = config.isPerOperatorCpuTimerEnabled();
this.cpuTimerEnabled = config.isTaskCpuTimerEnabled();
}
public SqlTaskExecution create(Session session, QueryContext queryContext, TaskStateMachine taskStateMachine, OutputBuffer outputBuffer, PlanFragment fragment, List<TaskSource> sources, OptionalInt totalPartitions)
{
TaskContext taskContext = queryContext.addTaskContext(
taskStateMachine,
session,
perOperatorCpuTimerEnabled,
cpuTimerEnabled,
totalPartitions);
LocalExecutionPlan localExecutionPlan;
try (SetThreadName ignored = new SetThreadName("Task-%s", taskStateMachine.getTaskId())) {
try {
localExecutionPlan = planner.plan(
taskContext,
fragment.getRoot(),
TypeProvider.copyOf(fragment.getSymbols()),
fragment.getPartitioningScheme(),
fragment.getStageExecutionStrategy(),
fragment.getPartitionedSources(),
outputBuffer);
}
catch (Throwable e) {
// planning failed
taskStateMachine.failed(e);
throwIfUnchecked(e);
throw new RuntimeException(e);
}
}
return createSqlTaskExecution(
taskStateMachine,
taskContext,
outputBuffer,
sources,
localExecutionPlan,
taskExecutor,
taskNotificationExecutor,
splitMonitor);
}
}