Examples with RETENTION_FREQUENCY io.pravega.shared.MetricsNames.RETENTION_FREQUENCY used on opensource projects

Example 1 with RETENTION_FREQUENCY

use of io.pravega.shared.MetricsNames.RETENTION_FREQUENCY in project pravega by pravega.

the class StreamMetadataTasks method retention.

/**
 * Method to check retention policy and generate new periodic cuts and/or truncate stream at an existing stream cut.
 *
 * @param scope scope
 * @param stream stream
 * @param policy retention policy
 * @param recordingTime time of recording
 * @param contextOpt operation context
 * @param delegationToken token to be sent to segmentstore to authorize this operation.
 * @return future.
 */
public CompletableFuture<Void> retention(final String scope, final String stream, final RetentionPolicy policy, final long recordingTime, final OperationContext contextOpt, final String delegationToken) {
    Preconditions.checkNotNull(policy);
    final OperationContext context = contextOpt == null ? streamMetadataStore.createContext(scope, stream) : contextOpt;
    return streamMetadataStore.getStreamCutsFromRetentionSet(scope, stream, context, executor).thenCompose(retentionSet -> {
        StreamCutRecord latestCut = retentionSet.stream().max(Comparator.comparingLong(StreamCutRecord::getRecordingTime)).orElse(null);
        return checkGenerateStreamCut(scope, stream, context, latestCut, recordingTime, delegationToken).thenCompose(newRecord -> truncate(scope, stream, policy, context, retentionSet, newRecord, recordingTime));
    }).thenAccept(x -> DYNAMIC_LOGGER.recordMeterEvents(nameFromStream(RETENTION_FREQUENCY, scope, stream), 1));
}