io.druid.indexing.common.actions.SegmentNukeAction.java Source code

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Here is the source code for io.druid.indexing.common.actions.SegmentNukeAction.java

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/*
 * Druid - a distributed column store.
 * Copyright 2012 - 2015 Metamarkets Group Inc.
 *
 * 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.druid.indexing.common.actions;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.core.type.TypeReference;
import com.google.common.collect.ImmutableSet;
import com.metamx.emitter.service.ServiceMetricEvent;
import io.druid.indexing.common.task.Task;
import io.druid.query.DruidMetrics;
import io.druid.timeline.DataSegment;

import java.io.IOException;
import java.util.Set;

public class SegmentNukeAction implements TaskAction<Void> {
    @JsonIgnore
    private final Set<DataSegment> segments;

    @JsonCreator
    public SegmentNukeAction(@JsonProperty("segments") Set<DataSegment> segments) {
        this.segments = ImmutableSet.copyOf(segments);
    }

    @JsonProperty
    public Set<DataSegment> getSegments() {
        return segments;
    }

    public TypeReference<Void> getReturnTypeReference() {
        return new TypeReference<Void>() {
        };
    }

    @Override
    public Void perform(Task task, TaskActionToolbox toolbox) throws IOException {
        toolbox.verifyTaskLocks(task, segments);
        toolbox.getIndexerMetadataStorageCoordinator().deleteSegments(segments);

        // Emit metrics
        final ServiceMetricEvent.Builder metricBuilder = new ServiceMetricEvent.Builder()
                .setDimension(DruidMetrics.DATASOURCE, task.getDataSource())
                .setDimension(DruidMetrics.TASK_TYPE, task.getType());

        for (DataSegment segment : segments) {
            metricBuilder.setDimension(DruidMetrics.INTERVAL, segment.getInterval().toString());
            toolbox.getEmitter().emit(metricBuilder.build("segment/nuked/bytes", segment.getSize()));
        }

        return null;
    }

    @Override
    public boolean isAudited() {
        return true;
    }

    @Override
    public String toString() {
        return "SegmentNukeAction{" + "segments=" + segments + '}';
    }
}