io.prestosql.execution.StageInfo.java Source code

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Here is the source code for io.prestosql.execution.StageInfo.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 com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.collect.ImmutableList;
import io.prestosql.spi.type.Type;
import io.prestosql.sql.planner.PlanFragment;

import javax.annotation.Nullable;
import javax.annotation.concurrent.Immutable;

import java.net.URI;
import java.util.List;
import java.util.Optional;

import static com.google.common.base.MoreObjects.toStringHelper;
import static java.util.Objects.requireNonNull;

@Immutable
public class StageInfo {
    private final StageId stageId;
    private final StageState state;
    private final URI self;
    private final PlanFragment plan;
    private final List<Type> types;
    private final StageStats stageStats;
    private final List<TaskInfo> tasks;
    private final List<StageInfo> subStages;
    private final ExecutionFailureInfo failureCause;

    @JsonCreator
    public StageInfo(@JsonProperty("stageId") StageId stageId, @JsonProperty("state") StageState state,
            @JsonProperty("self") URI self, @JsonProperty("plan") @Nullable PlanFragment plan,
            @JsonProperty("types") List<Type> types, @JsonProperty("stageStats") StageStats stageStats,
            @JsonProperty("tasks") List<TaskInfo> tasks, @JsonProperty("subStages") List<StageInfo> subStages,
            @JsonProperty("failureCause") ExecutionFailureInfo failureCause) {
        requireNonNull(stageId, "stageId is null");
        requireNonNull(state, "state is null");
        requireNonNull(self, "self is null");
        requireNonNull(stageStats, "stageStats is null");
        requireNonNull(tasks, "tasks is null");
        requireNonNull(subStages, "subStages is null");

        this.stageId = stageId;
        this.state = state;
        this.self = self;
        this.plan = plan;
        this.types = types;
        this.stageStats = stageStats;
        this.tasks = ImmutableList.copyOf(tasks);
        this.subStages = subStages;
        this.failureCause = failureCause;
    }

    @JsonProperty
    public StageId getStageId() {
        return stageId;
    }

    @JsonProperty
    public StageState getState() {
        return state;
    }

    @JsonProperty
    public URI getSelf() {
        return self;
    }

    @JsonProperty
    @Nullable
    public PlanFragment getPlan() {
        return plan;
    }

    @JsonProperty
    public List<Type> getTypes() {
        return types;
    }

    @JsonProperty
    public StageStats getStageStats() {
        return stageStats;
    }

    @JsonProperty
    public List<TaskInfo> getTasks() {
        return tasks;
    }

    @JsonProperty
    public List<StageInfo> getSubStages() {
        return subStages;
    }

    @JsonProperty
    public ExecutionFailureInfo getFailureCause() {
        return failureCause;
    }

    public boolean isFinalStageInfo() {
        return state.isDone() && tasks.stream().allMatch(taskInfo -> taskInfo.getTaskStatus().getState().isDone());
    }

    @Override
    public String toString() {
        return toStringHelper(this).add("stageId", stageId).add("state", state).toString();
    }

    public static List<StageInfo> getAllStages(Optional<StageInfo> stageInfo) {
        ImmutableList.Builder<StageInfo> collector = ImmutableList.builder();
        addAllStages(stageInfo, collector);
        return collector.build();
    }

    private static void addAllStages(Optional<StageInfo> stageInfo, ImmutableList.Builder<StageInfo> collector) {
        stageInfo.ifPresent(stage -> {
            collector.add(stage);
            stage.getSubStages().stream()
                    .forEach(subStage -> addAllStages(Optional.ofNullable(subStage), collector));
        });
    }

    public boolean isCompleteInfo() {
        return state.isDone() && tasks.stream().allMatch(taskInfo -> taskInfo.getTaskStatus().getState().isDone());
    }
}