/// <summary>Retrieves all the records managed by this MetricsContext.</summary>
/// <remarks>
/// Retrieves all the records managed by this MetricsContext.
/// Useful for monitoring systems that are polling-based.
/// </remarks>
/// <returns>A non-null collection of all monitoring records.</returns>
public override IDictionary <string, ICollection <OutputRecord> > GetAllRecords()
{
lock (this)
{
IDictionary <string, ICollection <OutputRecord> > @out = new SortedDictionary <string
, ICollection <OutputRecord> >();
foreach (KeyValuePair <string, AbstractMetricsContext.RecordMap> recordEntry in bufferedData)
{
AbstractMetricsContext.RecordMap recordMap = recordEntry.Value;
lock (recordMap)
{
IList <OutputRecord> records = new AList <OutputRecord>();
ICollection <KeyValuePair <AbstractMetricsContext.TagMap, AbstractMetricsContext.MetricMap
> > entrySet = recordMap;
foreach (KeyValuePair <AbstractMetricsContext.TagMap, AbstractMetricsContext.MetricMap
> entry in entrySet)
{
OutputRecord outRec = new OutputRecord(entry.Key, entry.Value);
records.AddItem(outRec);
}
@out[recordEntry.Key] = records;
}
}
return(@out);
}
}
/// <summary>Creates a new AbstractMetricsRecord instance with the given <code>recordName</code>.
/// </summary>
/// <remarks>
/// Creates a new AbstractMetricsRecord instance with the given <code>recordName</code>.
/// Throws an exception if the metrics implementation is configured with a fixed
/// set of record names and <code>recordName</code> is not in that set.
/// </remarks>
/// <param name="recordName">the name of the record</param>
/// <exception cref="Org.Apache.Hadoop.Metrics.MetricsException">if recordName conflicts with configuration data
/// </exception>
public sealed override MetricsRecord CreateRecord(string recordName)
{
lock (this)
{
if (bufferedData[recordName] == null)
{
bufferedData[recordName] = new AbstractMetricsContext.RecordMap();
}
return(NewRecord(recordName));
}
}
/// <summary>Called by MetricsRecordImpl.remove().</summary>
/// <remarks>
/// Called by MetricsRecordImpl.remove(). Removes all matching rows in
/// the internal table of metric data. A row matches if it has the same
/// tag names and values as record, but it may also have additional
/// tags.
/// </remarks>
protected internal virtual void Remove(MetricsRecordImpl record)
{
string recordName = record.GetRecordName();
AbstractMetricsContext.TagMap tagTable = record.GetTagTable();
AbstractMetricsContext.RecordMap recordMap = GetRecordMap(recordName);
lock (recordMap)
{
IEnumerator <AbstractMetricsContext.TagMap> it = recordMap.Keys.GetEnumerator();
while (it.HasNext())
{
AbstractMetricsContext.TagMap rowTags = it.Next();
if (rowTags.ContainsAll(tagTable))
{
it.Remove();
}
}
}
}
/// <summary>Emits the records.</summary>
/// <exception cref="System.IO.IOException"/>
private void EmitRecords()
{
lock (this)
{
foreach (KeyValuePair <string, AbstractMetricsContext.RecordMap> recordEntry in bufferedData)
{
AbstractMetricsContext.RecordMap recordMap = recordEntry.Value;
lock (recordMap)
{
ICollection <KeyValuePair <AbstractMetricsContext.TagMap, AbstractMetricsContext.MetricMap
> > entrySet = recordMap;
foreach (KeyValuePair <AbstractMetricsContext.TagMap, AbstractMetricsContext.MetricMap
> entry in entrySet)
{
OutputRecord outRec = new OutputRecord(entry.Key, entry.Value);
EmitRecord(contextName, recordEntry.Key, outRec);
}
}
}
Flush();
}
}
/// <summary>Called by MetricsRecordImpl.update().</summary>
/// <remarks>
/// Called by MetricsRecordImpl.update(). Creates or updates a row in
/// the internal table of metric data.
/// </remarks>
protected internal virtual void Update(MetricsRecordImpl record)
{
string recordName = record.GetRecordName();
AbstractMetricsContext.TagMap tagTable = record.GetTagTable();
IDictionary <string, MetricValue> metricUpdates = record.GetMetricTable();
AbstractMetricsContext.RecordMap recordMap = GetRecordMap(recordName);
lock (recordMap)
{
AbstractMetricsContext.MetricMap metricMap = recordMap[tagTable];
if (metricMap == null)
{
metricMap = new AbstractMetricsContext.MetricMap();
AbstractMetricsContext.TagMap tagMap = new AbstractMetricsContext.TagMap(tagTable
);
// clone tags
recordMap[tagMap] = metricMap;
}
ICollection <KeyValuePair <string, MetricValue> > entrySet = metricUpdates;
foreach (KeyValuePair <string, MetricValue> entry in entrySet)
{
string metricName = entry.Key;
MetricValue updateValue = entry.Value;
Number updateNumber = updateValue.GetNumber();
Number currentNumber = metricMap[metricName];
if (currentNumber == null || updateValue.IsAbsolute())
{
metricMap[metricName] = updateNumber;
}
else
{
Number newNumber = Sum(updateNumber, currentNumber);
metricMap[metricName] = newNumber;
}
}
}
}
