[pkg/stanza] Ensure time parsing happens before entry is sent downwards (open-telemetry#36213)

<!--Ex. Fixing a bug - Describe the bug and how this fixes the issue.
Ex. Adding a feature - Explain what this achieves.-->
#### Description

This issue was caught at
open-telemetry#35758.
This PR ensures that time parsing happens before the entry is sent to
the next operator in the pipeline.

<!-- Issue number (e.g. open-telemetry#1234) or full URL to issue, if applicable. -->
#### Link to tracking issue
Fixes ~

<!--Describe what testing was performed and which tests were added.-->
#### Testing
Added

<!--Describe the documentation added.-->
#### Documentation
~

<!--Please delete paragraphs that you did not use before submitting.-->

Signed-off-by: ChrsMark <[email protected]>

Author: ChrsMark

.chloggen/fix_container_time_parsing.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: bug_fix
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: pkg/stanza
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Ensure that time parsing happens before entry is sent to downstream operators
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [36213]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [user]

pkg/stanza/operator/parser/container/parser.go

@@ -63,12 +63,11 @@ type Parser struct {
 	asyncConsumerStarted    bool
 	criConsumerStartOnce    sync.Once
 	criConsumers            *sync.WaitGroup
+	timeLayout              string
 }
 
 // Process will parse an entry of Container logs
 func (p *Parser) Process(ctx context.Context, entry *entry.Entry) (err error) {
-	var timeLayout string
-
 	format := p.format
 	if format == "" {
 		format, err = p.detectFormat(entry)
@@ -79,15 +78,11 @@ func (p *Parser) Process(ctx context.Context, entry *entry.Entry) (err error) {
 
 	switch format {
 	case dockerFormat:
-		err = p.ParserOperator.ProcessWithCallback(ctx, entry, p.parseDocker, p.handleAttributeMappings)
+		p.timeLayout = goTimeLayout
+		err = p.ParserOperator.ProcessWithCallback(ctx, entry, p.parseDocker, p.handleTimeAndAttributeMappings)
 		if err != nil {
 			return fmt.Errorf("failed to process the docker log: %w", err)
 		}
-		timeLayout = goTimeLayout
-		err = parseTime(entry, timeLayout)
-		if err != nil {
-			return fmt.Errorf("failed to parse time: %w", err)
-		}
 	case containerdFormat, crioFormat:
 		p.criConsumerStartOnce.Do(func() {
 			err = p.criLogEmitter.Start(nil)
@@ -119,22 +114,17 @@ func (p *Parser) Process(ctx context.Context, entry *entry.Entry) (err error) {
 			if err != nil {
 				return fmt.Errorf("failed to parse containerd log: %w", err)
 			}
-			timeLayout = goTimeLayout
+			p.timeLayout = goTimeLayout
 		} else {
 			// parse the message
 			err = p.ParserOperator.ParseWith(ctx, entry, p.parseCRIO)
 			if err != nil {
 				return fmt.Errorf("failed to parse crio log: %w", err)
 			}
-			timeLayout = crioTimeLayout
+			p.timeLayout = crioTimeLayout
 		}
 
-		err = parseTime(entry, timeLayout)
-		if err != nil {
-			return fmt.Errorf("failed to parse time: %w", err)
-		}
-
-		err = p.handleAttributeMappings(entry)
+		err = p.handleTimeAndAttributeMappings(entry)
 		if err != nil {
 			return fmt.Errorf("failed to handle attribute mappings: %w", err)
 		}
@@ -251,9 +241,14 @@ func (p *Parser) parseDocker(value any) (any, error) {
 	return parsedValue, nil
 }
 
-// handleAttributeMappings handles fields' mappings and k8s meta extraction
-func (p *Parser) handleAttributeMappings(e *entry.Entry) error {
-	err := p.handleMoveAttributes(e)
+// handleTimeAndAttributeMappings handles fields' mappings and k8s meta extraction
+func (p *Parser) handleTimeAndAttributeMappings(e *entry.Entry) error {
+	err := parseTime(e, p.timeLayout)
+	if err != nil {
+		return fmt.Errorf("failed to parse time: %w", err)
+	}
+
+	err = p.handleMoveAttributes(e)
 	if err != nil {
 		return err
 	}

pkg/stanza/operator/parser/container/parser_test.go

@@ -408,6 +408,69 @@ func TestRecombineProcess(t *testing.T) {
 	}
 }
 
+func TestProcessWithDockerTime(t *testing.T) {
+	cases := []struct {
+		name           string
+		op             func() (operator.Operator, error)
+		input          *entry.Entry
+		expectedOutput *entry.Entry
+	}{
+		{
+			"docker",
+			func() (operator.Operator, error) {
+				cfg := NewConfigWithID("test_id")
+				cfg.AddMetadataFromFilePath = true
+				set := componenttest.NewNopTelemetrySettings()
+				return cfg.Build(set)
+			},
+			&entry.Entry{
+				Body: `{"log":"INFO: log line here","stream":"stdout","time":"2029-03-30T08:31:20.545192187Z"}`,
+				Attributes: map[string]any{
+					"log.file.path": "/var/log/pods/some_kube-scheduler-kind-control-plane_49cc7c1fd3702c40b2686ea7486091d3/kube-scheduler44/1.log",
+				},
+			},
+			&entry.Entry{
+				Attributes: map[string]any{
+					"log.iostream":  "stdout",
+					"log.file.path": "/var/log/pods/some_kube-scheduler-kind-control-plane_49cc7c1fd3702c40b2686ea7486091d3/kube-scheduler44/1.log",
+				},
+				Body: "INFO: log line here",
+				Resource: map[string]any{
+					"k8s.pod.name":                "kube-scheduler-kind-control-plane",
+					"k8s.pod.uid":                 "49cc7c1fd3702c40b2686ea7486091d3",
+					"k8s.container.name":          "kube-scheduler44",
+					"k8s.container.restart_count": "1",
+					"k8s.namespace.name":          "some",
+				},
+				Timestamp: time.Date(2029, time.March, 30, 8, 31, 20, 545192187, time.UTC),
+			},
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			ctx := context.Background()
+			op, err := tc.op()
+			require.NoError(t, err)
+			defer func() { require.NoError(t, op.Stop()) }()
+			r := op.(*Parser)
+
+			fake := testutil.NewFakeOutput(t)
+			r.OutputOperators = ([]operator.Operator{fake})
+
+			require.NoError(t, r.Process(ctx, tc.input))
+
+			fake.ExpectEntry(t, tc.expectedOutput)
+
+			select {
+			case e := <-fake.Received:
+				require.FailNow(t, "Received unexpected entry: ", e)
+			default:
+			}
+		})
+	}
+}
+
 func TestCRIRecombineProcessWithFailedDownstreamOperator(t *testing.T) {
 	cases := []struct {
 		name           string