/// <summary>
/// Parses a configuration value for log specifying log pruning. It has one of these forms:
/// <ul>
/// <li>all</li>
/// <li>[number][unit] [type]</li>
/// </ul>
/// For example:
/// <ul>
/// <li>100M size - For keeping last 100 megabytes of log data</li>
/// <li>20 pcs - For keeping last 20 non-empty log files</li>
/// <li>7 days - For keeping last 7 days worth of log data</li>
/// <li>1k hours - For keeping last 1000 hours worth of log data</li>
/// </ul>
/// </summary>
internal virtual LogPruneStrategy StrategyFromConfigValue(FileSystemAbstraction fileSystem, LogFiles logFiles, Clock clock, string configValue)
{
ThresholdConfigValue value = parse(configValue);
if (value == ThresholdConfigValue.NO_PRUNING)
{
return(NO_PRUNING);
}
Threshold thresholdToUse = GetThresholdByType(fileSystem, clock, value, configValue);
return(new ThresholdBasedPruneStrategy(fileSystem, logFiles, thresholdToUse));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @VisibleForTesting static Threshold getThresholdByType(org.neo4j.io.fs.FileSystemAbstraction fileSystem, java.time.Clock clock, org.neo4j.kernel.impl.transaction.log.pruning.ThresholdConfigParser.ThresholdConfigValue value, String originalConfigValue)
internal static Threshold GetThresholdByType(FileSystemAbstraction fileSystem, Clock clock, ThresholdConfigValue value, string originalConfigValue)
{
long thresholdValue = value.Value;
switch (value.Type)
{
case "files":
return(new FileCountThreshold(thresholdValue));
case "size":
return(new FileSizeThreshold(fileSystem, thresholdValue));
case "txs":
case "entries": // txs and entries are synonyms
return(new EntryCountThreshold(thresholdValue));
case "hours":
return(new EntryTimespanThreshold(clock, HOURS, thresholdValue));
case "days":
return(new EntryTimespanThreshold(clock, DAYS, thresholdValue));
default:
throw new System.ArgumentException("Invalid log pruning configuration value '" + originalConfigValue + "'. Invalid type '" + value.Type + "', valid are files, size, txs, entries, hours, days.");
}
}
