com.linkedin.pinot.controller.helix.core.util.ZKMetadataUtils.java Source code

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Here is the source code for com.linkedin.pinot.controller.helix.core.util.ZKMetadataUtils.java

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/**
 * Copyright (C) 2014-2015 LinkedIn Corp. (pinot-core@linkedin.com)
 *
 * 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.linkedin.pinot.controller.helix.core.util;

import java.util.concurrent.TimeUnit;

import org.joda.time.Duration;

import com.linkedin.pinot.common.metadata.segment.OfflineSegmentZKMetadata;
import com.linkedin.pinot.common.segment.SegmentMetadata;
import com.linkedin.pinot.common.utils.CommonConstants.Segment.SegmentType;

public class ZKMetadataUtils {

    public static OfflineSegmentZKMetadata updateSegmentMetadata(OfflineSegmentZKMetadata offlineSegmentZKMetadata,
            SegmentMetadata segmentMetadata) {
        offlineSegmentZKMetadata.setSegmentName(segmentMetadata.getName());
        offlineSegmentZKMetadata.setTableName(segmentMetadata.getTableName());
        offlineSegmentZKMetadata.setIndexVersion(segmentMetadata.getVersion());
        offlineSegmentZKMetadata.setSegmentType(SegmentType.OFFLINE);

        offlineSegmentZKMetadata.setTimeUnit(extractTimeUnitFromDuration(segmentMetadata.getTimeGranularity()));
        if (segmentMetadata.getTimeInterval() == null) {
            offlineSegmentZKMetadata.setStartTime(-1);
            offlineSegmentZKMetadata.setEndTime(-1);
        } else {
            offlineSegmentZKMetadata.setStartTime(offlineSegmentZKMetadata.getTimeUnit()
                    .convert(segmentMetadata.getTimeInterval().getStartMillis(), TimeUnit.MILLISECONDS));
            offlineSegmentZKMetadata.setEndTime(offlineSegmentZKMetadata.getTimeUnit()
                    .convert(segmentMetadata.getTimeInterval().getEndMillis(), TimeUnit.MILLISECONDS));
        }
        offlineSegmentZKMetadata.setTotalDocs(segmentMetadata.getTotalDocs());
        offlineSegmentZKMetadata.setCreationTime(segmentMetadata.getIndexCreationTime());
        offlineSegmentZKMetadata.setCrc(Long.parseLong(segmentMetadata.getCrc()));
        return offlineSegmentZKMetadata;
    }

    private static TimeUnit extractTimeUnitFromDuration(Duration timeGranularity) {
        if (timeGranularity == null) {
            return null;
        }
        long timeUnitInMills = timeGranularity.getMillis();
        for (TimeUnit timeUnit : TimeUnit.values()) {
            if (timeUnit.toMillis(1) == timeUnitInMills) {
                return timeUnit;
            }
        }
        return null;
    }
}