/*
* 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 com.facebook.presto.execution;
import java.util.Set;
import java.util.stream.Stream;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.collect.ImmutableSet.toImmutableSet;
public enum StageState
{
/**
* Stage is planned but has not been scheduled yet. A stage will
* be in the planned state until, the dependencies of the stage
* have begun producing output.
*/
PLANNED(false, false),
/**
* Stage tasks are being scheduled on nodes.
*/
SCHEDULING(false, false),
/**
* All stage tasks have been scheduled, but splits are still being scheduled.
*/
SCHEDULING_SPLITS(false, false),
/**
* Stage has been scheduled on nodes and ready to execute, but all tasks are still queued.
*/
SCHEDULED(false, false),
/**
* Stage is running.
*/
RUNNING(false, false),
/**
* Stage has finished executing and all output has been consumed.
*/
FINISHED(true, false),
/**
* Stage was canceled by a user.
*/
CANCELED(true, false),
/**
* Stage was aborted due to a failure in the query. The failure
* was not in this stage.
*/
ABORTED(true, true),
/**
* Stage execution failed.
*/
FAILED(true, true);
public static final Set<StageState> TERMINAL_STAGE_STATES = Stream.of(StageState.values()).filter(StageState::isDone).collect(toImmutableSet());
private final boolean doneState;
private final boolean failureState;
StageState(boolean doneState, boolean failureState)
{
checkArgument(!failureState || doneState, "%s is a non-done failure state", name());
this.doneState = doneState;
this.failureState = failureState;
}
/**
* Is this a terminal state.
*/
public boolean isDone()
{
return doneState;
}
/**
* Is this a non-success terminal state.
*/
public boolean isFailure()
{
return failureState;
}
}