[pkg/stanza] Switch to faster json parser lib for container operator

.chloggen/switch_json_lib_of_container_parser.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: enhancement
+
+# 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: Switch to faster json parser lib for container operator
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [33929]
+
+# (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/config.go

@@ -7,7 +7,6 @@ import (
 	"fmt"
 	"sync"
 
-	jsoniter "github.com/json-iterator/go"
 	"go.opentelemetry.io/collector/component"
 
 	"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/stanza/entry"
@@ -81,7 +80,6 @@ func (c Config) Build(set component.TelemetrySettings) (operator.Operator, error
 	p := &Parser{
 		ParserOperator:          parserOperator,
 		recombineParser:         recombineParser,
-		json:                    jsoniter.ConfigFastest,
 		format:                  c.Format,
 		addMetadataFromFilepath: c.AddMetadataFromFilePath,
 		crioLogEmitter:          cLogEmitter,

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

@@ -12,7 +12,7 @@ import (
 	"sync"
 	"time"
 
-	jsoniter "github.com/json-iterator/go"
+	"github.com/goccy/go-json"
 	"go.uber.org/zap"
 
 	"github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal/timeutils"
@@ -58,7 +58,6 @@ type Parser struct {
 	helper.ParserOperator
 	recombineParser         operator.Operator
 	format                  string
-	json                    jsoniter.API
 	addMetadataFromFilepath bool
 	crioLogEmitter          *helper.LogEmitter
 	asyncConsumerStarted    bool
@@ -243,7 +242,7 @@ func (p *Parser) parseDocker(value any) (any, error) {
 	}
 
 	parsedValue := make(map[string]any)
-	err := p.json.UnmarshalFromString(raw, &parsedValue)
+	err := json.Unmarshal([]byte(raw), &parsedValue)
 	if err != nil {
 		return nil, err
 	}