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Preview TraceWriter: Fixes Argument Null Exception / Null Reference Exception #2246

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merged 3 commits into from
Feb 23, 2021
Merged

Preview TraceWriter: Fixes Argument Null Exception / Null Reference Exception #2246

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8ed07c1
fixes NRE
bchong95 Feb 22, 2021
96a9984
opted for json null
bchong95 Feb 22, 2021
60a31ce
Merge branch 'master' into users/brchon/Tracing/FixNRE
bchong95 Feb 22, 2021
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17 changes: 11 additions & 6 deletions Microsoft.Azure.Cosmos/src/Tracing/TraceWriter.TraceJsonWriter.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -158,7 +158,7 @@ public void Visit(PointOperationStatisticsTraceDatum pointOperationStatisticsTra
this.jsonWriter.WriteStringValue("PointOperationStatistics");

this.jsonWriter.WriteFieldName("ActivityId");
this.jsonWriter.WriteStringValue(pointOperationStatisticsTraceDatum.ActivityId);
this.jsonWriter.WriteStringValue(pointOperationStatisticsTraceDatum.ActivityId ?? "<null>");
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this.jsonWriter.WriteFieldName("ResponseTimeUtc");
this.jsonWriter.WriteStringValue(pointOperationStatisticsTraceDatum.ResponseTimeUtc.ToString("o", CultureInfo.InvariantCulture));
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WriteStringValueOrNull

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I think it is after the diff.

Expand All @@ -173,7 +173,7 @@ public void Visit(PointOperationStatisticsTraceDatum pointOperationStatisticsTra
this.jsonWriter.WriteNumber64Value(pointOperationStatisticsTraceDatum.RequestCharge);

this.jsonWriter.WriteFieldName("RequestUri");
this.jsonWriter.WriteStringValue(pointOperationStatisticsTraceDatum.RequestUri);
this.jsonWriter.WriteStringValue(pointOperationStatisticsTraceDatum.RequestUri ?? "<null>");

if (!string.IsNullOrEmpty(pointOperationStatisticsTraceDatum.ErrorMessage))
{
Expand Down Expand Up @@ -250,7 +250,7 @@ private static void VisitAddressResolutionStatistics(
}

jsonWriter.WriteFieldName("TargetEndpoint");
jsonWriter.WriteStringValue(addressResolutionStatistics.TargetEndpoint);
jsonWriter.WriteStringValue(addressResolutionStatistics.TargetEndpoint ?? "<null>");

jsonWriter.WriteObjectEnd();
}
Expand All @@ -271,7 +271,7 @@ private static void VisitStoreResponseStatistics(
jsonWriter.WriteStringValue(storeResponseStatistics.RequestOperationType.ToString());

jsonWriter.WriteFieldName("LocationEndpoint");
jsonWriter.WriteStringValue(storeResponseStatistics.LocationEndpoint.ToString());
jsonWriter.WriteStringValue(storeResponseStatistics.LocationEndpoint?.ToString() ?? "<null>");

if (storeResponseStatistics.StoreResult != null)
{
Expand Down Expand Up @@ -301,7 +301,7 @@ private void WriteJsonUriArray(string propertyName, IEnumerable<Uri> uris)
{
foreach (Uri contactedReplica in uris)
{
this.jsonWriter.WriteStringValue(contactedReplica.ToString());
this.jsonWriter.WriteStringValue(contactedReplica?.ToString() ?? "<null>");
}
}

Expand All @@ -326,6 +326,11 @@ private void WriteJsonUriArrayWithDuplicatesCounted(string propertyName, IReadOn
for (int i = 0; i < totalCount; i++)
{
Uri contactedReplica = uris[i];
if (contactedReplica == null)
{
continue;
}

if (contactedReplica.Equals(previous))
{
duplicateCount++;
Expand All @@ -345,7 +350,7 @@ private void WriteJsonUriArrayWithDuplicatesCounted(string propertyName, IReadOn
this.jsonWriter.WriteFieldName("Count");
this.jsonWriter.WriteNumber64Value(duplicateCount);
this.jsonWriter.WriteFieldName("Uri");
this.jsonWriter.WriteStringValue(contactedReplica.ToString());
this.jsonWriter.WriteStringValue(contactedReplica?.ToString() ?? "<null>");
this.jsonWriter.WriteObjectEnd();
}

Expand Down
23 changes: 14 additions & 9 deletions Microsoft.Azure.Cosmos/src/Tracing/TraceWriter.TraceTextWriter.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -322,12 +322,12 @@ public void Visit(QueryMetricsTraceDatum queryMetricsTraceDatum)
public void Visit(PointOperationStatisticsTraceDatum pointOperationStatisticsTraceDatum)
{
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.AppendLine($"Activity ID: {pointOperationStatisticsTraceDatum.ActivityId}");
stringBuilder.AppendLine($"Activity ID: {pointOperationStatisticsTraceDatum.ActivityId ?? "<null>"}");
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stringBuilder.AppendLine($"Status Code: {pointOperationStatisticsTraceDatum.StatusCode}/{pointOperationStatisticsTraceDatum.SubStatusCode}");
stringBuilder.AppendLine($"Response Time: {pointOperationStatisticsTraceDatum.ResponseTimeUtc.ToString("hh:mm:ss:fff", CultureInfo.InvariantCulture)}");
stringBuilder.AppendLine($"Request Charge: {pointOperationStatisticsTraceDatum.RequestCharge}");
stringBuilder.AppendLine($"Request URI: {pointOperationStatisticsTraceDatum.RequestUri}");
stringBuilder.AppendLine($"Session Tokens: {pointOperationStatisticsTraceDatum.RequestSessionToken} / {pointOperationStatisticsTraceDatum.ResponseSessionToken}");
stringBuilder.AppendLine($"Request URI: {pointOperationStatisticsTraceDatum.RequestUri ?? "<null>"}");
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stringBuilder.AppendLine($"Session Tokens: {pointOperationStatisticsTraceDatum.RequestSessionToken ?? "<null>"} / {pointOperationStatisticsTraceDatum.ResponseSessionToken ?? "<null>"}");
if (pointOperationStatisticsTraceDatum.ErrorMessage != null)
{
stringBuilder.AppendLine($"Error Message: {pointOperationStatisticsTraceDatum.ErrorMessage}");
Expand All @@ -349,6 +349,11 @@ public void Visit(ClientSideRequestStatisticsTraceDatum clientSideRequestStatist
Dictionary<Uri, int> uriAndCounts = new Dictionary<Uri, int>();
foreach (Uri uri in clientSideRequestStatisticsTraceDatum.ContactedReplicas)
{
if (uri == null)
{
continue;
}

if (!uriAndCounts.TryGetValue(uri, out int count))
{
count = 0;
Expand All @@ -359,19 +364,19 @@ public void Visit(ClientSideRequestStatisticsTraceDatum clientSideRequestStatist

foreach (KeyValuePair<Uri, int> uriAndCount in uriAndCounts)
{
stringBuilder.AppendLine($"{space}{uriAndCount.Key}: {uriAndCount.Value}");
stringBuilder.AppendLine($"{space}{uriAndCount.Key?.ToString() ?? "<null>"}: {uriAndCount.Value}");
}

stringBuilder.AppendLine("Failed to Contact Replicas");
foreach (Uri failedToContactReplica in clientSideRequestStatisticsTraceDatum.FailedReplicas)
{
stringBuilder.AppendLine($"{space}{failedToContactReplica}");
stringBuilder.AppendLine($"{space}{failedToContactReplica?.ToString() ?? "<null>"}");
}

stringBuilder.AppendLine("Regions Contacted");
foreach (Uri regionContacted in clientSideRequestStatisticsTraceDatum.ContactedReplicas)
{
stringBuilder.AppendLine($"{space}{regionContacted}");
stringBuilder.AppendLine($"{space}{regionContacted?.ToString() ?? "<null>"}");
}

stringBuilder.AppendLine("Address Resolution Statistics");
Expand Down Expand Up @@ -409,8 +414,8 @@ public void Visit(ClientSideRequestStatisticsTraceDatum clientSideRequestStatist
if (stat.StoreResult != null)
{
stringBuilder.AppendLine($"{space}Store Result");
stringBuilder.AppendLine($"{space}{space}Activity Id: {stat.StoreResult.ActivityId}");
stringBuilder.AppendLine($"{space}{space}Store Physical Address: {stat.StoreResult.StorePhysicalAddress}");
stringBuilder.AppendLine($"{space}{space}Activity Id: {stat.StoreResult.ActivityId ?? "<null>"}");
stringBuilder.AppendLine($"{space}{space}Store Physical Address: {stat.StoreResult.StorePhysicalAddress?.ToString() ?? "<null>"}");
stringBuilder.AppendLine($"{space}{space}Status Code: {stat.StoreResult.StatusCode}/{stat.StoreResult.SubStatusCode}");
stringBuilder.AppendLine($"{space}{space}Is Valid: {stat.StoreResult.IsValid}");
stringBuilder.AppendLine($"{space}{space}LSN Info");
Expand All @@ -419,7 +424,7 @@ public void Visit(ClientSideRequestStatisticsTraceDatum clientSideRequestStatist
stringBuilder.AppendLine($"{space}{space}{space}Global LSN: {stat.StoreResult.GlobalCommittedLSN}");
stringBuilder.AppendLine($"{space}{space}{space}Quorum Acked LSN: {stat.StoreResult.QuorumAckedLSN}");
stringBuilder.AppendLine($"{space}{space}{space}Using LSN: {stat.StoreResult.UsingLocalLSN}");
stringBuilder.AppendLine($"{space}{space}Session Token: {stat.StoreResult.SessionToken.ConvertToString()}");
stringBuilder.AppendLine($"{space}{space}Session Token: {stat.StoreResult.SessionToken?.ConvertToString() ?? "<null>"}");
stringBuilder.AppendLine($"{space}{space}Quorum Info");
stringBuilder.AppendLine($"{space}{space}{space}Current Replica Set Size: {stat.StoreResult.CurrentReplicaSetSize}");
stringBuilder.AppendLine($"{space}{space}{space}Current Write Quorum: {stat.StoreResult.CurrentWriteQuorum}");
Expand Down
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