comments reflect deprecated NewJsonParser

CHANGELOG.md

@@ -20,6 +20,8 @@
 - [#4259](https://github.com/influxdata/telegraf/pull/4259): Add container status tag to docker input.
 - [#3523](https://github.com/influxdata/telegraf/pull/3523): Add valuecounter aggregator plugin.
 - [#4307](https://github.com/influxdata/telegraf/pull/4307): Add new measurement with results of pgrep lookup to procstat input.
+- [#4311](https://github.com/influxdata/telegraf/pull/4311): Add support for comma in logparser timestamp format.
+- [#4292](https://github.com/influxdata/telegraf/pull/4292): Add path tag to tail input plugin.
 
 ## v1.7.1 [unreleased]
 
@@ -27,6 +29,7 @@
 
 - [#4277](https://github.com/influxdata/telegraf/pull/4277): Treat sigterm as a clean shutdown signal.
 - [#4284](https://github.com/influxdata/telegraf/pull/4284): Fix selection of tags under nested objects in the JSON parser.
+- [#4135](https://github.com/influxdata/telegraf/issues/4135): Fix postfix input handling multi-level queues.
 
 ## v1.7 [2018-06-12]
 

Makefile

@@ -54,11 +54,11 @@ fmtcheck:
 	@echo '[INFO] done.'
 
 test-windows:
-	go test ./plugins/inputs/ping/...
-	go test ./plugins/inputs/win_perf_counters/...
-	go test ./plugins/inputs/win_services/...
-	go test ./plugins/inputs/procstat/...
-	go test ./plugins/inputs/ntpq/...
+	go test -short ./plugins/inputs/ping/...
+	go test -short ./plugins/inputs/win_perf_counters/...
+	go test -short ./plugins/inputs/win_services/...
+	go test -short ./plugins/inputs/procstat/...
+	go test -short ./plugins/inputs/ntpq/...
 
 # vet runs the Go source code static analysis tool `vet` to find
 # any common errors.

docs/DATA_FORMATS_INPUT.md

@@ -104,9 +104,10 @@ but can be overridden using the `name_override` config option.
 
 #### JSON Configuration:
 
-The JSON data format supports specifying "tag keys". If specified, keys
-will be searched for in the root-level of the JSON blob. If the key(s) exist,
-they will be applied as tags to the Telegraf metrics.
+The JSON data format supports specifying "tag keys" and "field keys". If specified, keys
+will be searched for in the root-level and any nested lists of the JSON blob. If the key(s) exist,
+they will be applied as tags or fields to the Telegraf metrics.  If "field_keys" is not specified,
+all int and float values will be set as fields by default.
 
 For example, if you had this configuration:
 
@@ -173,6 +174,7 @@ For example, if the following configuration:
     "my_tag_1",
     "my_tag_2"
   ]
+  field_keys = ["b_c"]
 ```
 
 with this JSON output from a command:
@@ -198,11 +200,11 @@ with this JSON output from a command:
 ]
 ```
 
-Your Telegraf metrics would get tagged with "my_tag_1" and "my_tag_2"
+Your Telegraf metrics would get tagged with "my_tag_1" and "my_tag_2" and fielded with "b_c"
 
 ```
-exec_mycollector,my_tag_1=foo,my_tag_2=baz a=5,b_c=6
-exec_mycollector,my_tag_1=bar,my_tag_2=baz a=7,b_c=8
+exec_mycollector,my_tag_1=foo,my_tag_2=baz b_c=6
+exec_mycollector,my_tag_1=bar,my_tag_2=baz b_c=8
 ```
 
 # Value:

internal/config/config.go

@@ -1261,6 +1261,18 @@ func buildParser(name string, tbl *ast.Table) (parsers.Parser, error) {
 		}
 	}
 
+	if node, ok := tbl.Fields["field_keys"]; ok {
+		if kv, ok := node.(*ast.KeyValue); ok {
+			if ary, ok := kv.Value.(*ast.Array); ok {
+				for _, elem := range ary.Value {
+					if str, ok := elem.(*ast.String); ok {
+						c.FieldKeys = append(c.FieldKeys, str.Value)
+					}
+				}
+			}
+		}
+	}
+
 	if node, ok := tbl.Fields["data_type"]; ok {
 		if kv, ok := node.(*ast.KeyValue); ok {
 			if str, ok := kv.Value.(*ast.String); ok {
@@ -1344,6 +1356,7 @@ func buildParser(name string, tbl *ast.Table) (parsers.Parser, error) {
 	delete(tbl.Fields, "separator")
 	delete(tbl.Fields, "templates")
 	delete(tbl.Fields, "tag_keys")
+	delete(tbl.Fields, "field_keys")
 	delete(tbl.Fields, "data_type")
 	delete(tbl.Fields, "collectd_auth_file")
 	delete(tbl.Fields, "collectd_security_level")

internal/config/config_test.go

@@ -143,7 +143,10 @@ func TestConfig_LoadDirectory(t *testing.T) {
 		"Testdata did not produce correct memcached metadata.")
 
 	ex := inputs.Inputs["exec"]().(*exec.Exec)
-	p, err := parsers.NewJSONParser("exec", nil, nil)
+	p, err := parsers.NewParser(&parsers.Config{
+		MetricName: "exec",
+		DataFormat: "json",
+	})
 	assert.NoError(t, err)
 	ex.SetParser(p)
 	ex.Command = "/usr/bin/myothercollector --foo=bar"

plugins/inputs/exec/exec_test.go

@@ -93,7 +93,10 @@ func (r runnerMock) Run(e *Exec, command string, acc telegraf.Accumulator) ([]by
 }
 
 func TestExec(t *testing.T) {
-	parser, _ := parsers.NewJSONParser("exec", []string{}, nil)
+	parser, _ := parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: "exec",
+	})
 	e := &Exec{
 		runner:   newRunnerMock([]byte(validJson), nil),
 		Commands: []string{"testcommand arg1"},
@@ -119,7 +122,10 @@ func TestExec(t *testing.T) {
 }
 
 func TestExecMalformed(t *testing.T) {
-	parser, _ := parsers.NewJSONParser("exec", []string{}, nil)
+	parser, _ := parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: "exec",
+	})
 	e := &Exec{
 		runner:   newRunnerMock([]byte(malformedJson), nil),
 		Commands: []string{"badcommand arg1"},
@@ -132,7 +138,10 @@ func TestExecMalformed(t *testing.T) {
 }
 
 func TestCommandError(t *testing.T) {
-	parser, _ := parsers.NewJSONParser("exec", []string{}, nil)
+	parser, _ := parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: "exec",
+	})
 	e := &Exec{
 		runner:   newRunnerMock(nil, fmt.Errorf("exit status code 1")),
 		Commands: []string{"badcommand"},

plugins/inputs/http/http_test.go

@@ -26,7 +26,11 @@ func TestHTTPwithJSONFormat(t *testing.T) {
 		URLs: []string{url},
 	}
 	metricName := "metricName"
-	p, _ := parsers.NewJSONParser(metricName, nil, nil)
+
+	p, _ := parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: "metricName",
+	})
 	plugin.SetParser(p)
 
 	var acc testutil.Accumulator
@@ -63,8 +67,11 @@ func TestHTTPHeaders(t *testing.T) {
 		URLs:    []string{url},
 		Headers: map[string]string{header: headerValue},
 	}
-	metricName := "metricName"
-	p, _ := parsers.NewJSONParser(metricName, nil, nil)
+
+	p, _ := parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: "metricName",
+	})
 	plugin.SetParser(p)
 
 	var acc testutil.Accumulator
@@ -83,7 +90,10 @@ func TestInvalidStatusCode(t *testing.T) {
 	}
 
 	metricName := "metricName"
-	p, _ := parsers.NewJSONParser(metricName, nil, nil)
+	p, _ := parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: metricName,
+	})
 	plugin.SetParser(p)
 
 	var acc testutil.Accumulator
@@ -105,8 +115,10 @@ func TestMethod(t *testing.T) {
 		Method: "POST",
 	}
 
-	metricName := "metricName"
-	p, _ := parsers.NewJSONParser(metricName, nil, nil)
+	p, _ := parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: "metricName",
+	})
 	plugin.SetParser(p)
 
 	var acc testutil.Accumulator

plugins/inputs/httpjson/httpjson.go

@@ -181,7 +181,12 @@ func (h *HttpJson) gatherServer(
 		"server": serverURL,
 	}
 
-	parser, err := parsers.NewJSONParser(msrmnt_name, h.TagKeys, tags)
+	parser, err := parsers.NewParser(&parsers.Config{
+		DataFormat:  "json",
+		MetricName:  msrmnt_name,
+		TagKeys:     h.TagKeys,
+		DefaultTags: tags,
+	})
 	if err != nil {
 		return err
 	}

plugins/inputs/kafka_consumer/kafka_consumer_test.go

@@ -125,7 +125,10 @@ func TestRunParserAndGatherJSON(t *testing.T) {
 	k.acc = &acc
 	defer close(k.done)
 
-	k.parser, _ = parsers.NewJSONParser("kafka_json_test", []string{}, nil)
+	k.parser, _ = parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: "kafka_json_test",
+	})
 	go k.receiver()
 	in <- saramaMsg(testMsgJSON)
 	acc.Wait(1)

plugins/inputs/kafka_consumer_legacy/kafka_consumer_legacy_test.go

@@ -125,7 +125,10 @@ func TestRunParserAndGatherJSON(t *testing.T) {
 	k.acc = &acc
 	defer close(k.done)
 
-	k.parser, _ = parsers.NewJSONParser("kafka_json_test", []string{}, nil)
+	k.parser, _ = parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: "kafka_json_test",
+	})
 	go k.receiver()
 	in <- saramaMsg(testMsgJSON)
 	acc.Wait(1)

plugins/inputs/logparser/README.md

@@ -108,7 +108,9 @@ You must capture at least one field per line.
   - ts-"CUSTOM"
 
 CUSTOM time layouts must be within quotes and be the representation of the
-"reference time", which is `Mon Jan 2 15:04:05 -0700 MST 2006`
+"reference time", which is `Mon Jan 2 15:04:05 -0700 MST 2006`.  
+To match a comma decimal point you can use a period.  For example `%{TIMESTAMP:timestamp:ts-"2006-01-02 15:04:05.000"}` can be used to match `"2018-01-02 15:04:05,000"`
+To match a comma decimal point you can use a period in the pattern string.
 See https://golang.org/pkg/time/#Parse for more details.
 
 Telegraf has many of its own [built-in patterns](./grok/patterns/influx-patterns),

plugins/inputs/logparser/grok/grok.go

@@ -335,6 +335,9 @@ func (p *Parser) ParseLine(line string) (telegraf.Metric, error) {
 		case DROP:
 		// goodbye!
 		default:
+			// Replace commas with dot character
+			v = strings.Replace(v, ",", ".", -1)
+
 			ts, err := time.ParseInLocation(t, v, p.loc)
 			if err == nil {
 				timestamp = ts

plugins/inputs/logparser/grok/grok_test.go

@@ -982,3 +982,21 @@ func TestSyslogTimestampParser(t *testing.T) {
 	require.NotNil(t, m)
 	require.Equal(t, 2018, m.Time().Year())
 }
+
+func TestReplaceTimestampComma(t *testing.T) {
+
+	p := &Parser{
+		Patterns: []string{`%{TIMESTAMP_ISO8601:timestamp:ts-"2006-01-02 15:04:05.000"} successfulMatches=%{NUMBER:value:int}`},
+	}
+
+	require.NoError(t, p.Compile())
+	m, err := p.ParseLine("2018-02-21 13:10:34,555 successfulMatches=1")
+	require.NoError(t, err)
+	require.NotNil(t, m)
+
+	require.Equal(t, 2018, m.Time().Year())
+	require.Equal(t, 13, m.Time().Hour())
+	require.Equal(t, 34, m.Time().Second())
+	//Convert Nanosecond to milisecond for compare
+	require.Equal(t, 555, m.Time().Nanosecond()/1000000)
+}

plugins/inputs/mqtt_consumer/mqtt_consumer_test.go

@@ -172,7 +172,10 @@ func TestRunParserAndGatherJSON(t *testing.T) {
 	n.acc = &acc
 	defer close(n.done)
 
-	n.parser, _ = parsers.NewJSONParser("nats_json_test", []string{}, nil)
+	n.parser, _ = parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: "nats_json_test",
+	})
 	go n.receiver()
 	in <- mqttMsg(testMsgJSON)
 

plugins/inputs/nats_consumer/nats_consumer_test.go

@@ -108,7 +108,10 @@ func TestRunParserAndGatherJSON(t *testing.T) {
 	n.acc = &acc
 	defer close(n.done)
 
-	n.parser, _ = parsers.NewJSONParser("nats_json_test", []string{}, nil)
+	n.parser, _ = parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: "nats_json_test",
+	})
 	n.wg.Add(1)
 	go n.receiver()
 	in <- natsMsg(testMsgJSON)

plugins/inputs/postfix/postfix.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"os"
 	"os/exec"
-	"path"
+	"path/filepath"
 	"strings"
 	"time"
 
@@ -28,36 +28,37 @@ func getQueueDirectory() (string, error) {
 	return strings.TrimSpace(string(qd)), nil
 }
 
-func qScan(path string) (int64, int64, int64, error) {
-	f, err := os.Open(path)
-	if err != nil {
-		return 0, 0, 0, err
-	}
-
-	finfos, err := f.Readdir(-1)
-	f.Close()
-	if err != nil {
-		return 0, 0, 0, err
-	}
-
+func qScan(path string, acc telegraf.Accumulator) (int64, int64, int64, error) {
 	var length, size int64
 	var oldest time.Time
-	for _, finfo := range finfos {
+	err := filepath.Walk(path, func(_ string, finfo os.FileInfo, err error) error {
+		if err != nil {
+			acc.AddError(fmt.Errorf("error scanning %s: %s", path, err))
+			return nil
+		}
+		if finfo.IsDir() {
+			return nil
+		}
+
 		length++
 		size += finfo.Size()
 
 		ctime := statCTime(finfo.Sys())
 		if ctime.IsZero() {
-			continue
+			return nil
 		}
 		if oldest.IsZero() || ctime.Before(oldest) {
 			oldest = ctime
 		}
+		return nil
+	})
+	if err != nil {
+		return 0, 0, 0, err
 	}
 	var age int64
 	if !oldest.IsZero() {
 		age = int64(time.Now().Sub(oldest) / time.Second)
-	} else if len(finfos) != 0 {
+	} else if length != 0 {
 		// system doesn't support ctime
 		age = -1
 	}
@@ -77,8 +78,8 @@ func (p *Postfix) Gather(acc telegraf.Accumulator) error {
 		}
 	}
 
-	for _, q := range []string{"active", "hold", "incoming", "maildrop"} {
-		length, size, age, err := qScan(path.Join(p.QueueDirectory, q))
+	for _, q := range []string{"active", "hold", "incoming", "maildrop", "deferred"} {
+		length, size, age, err := qScan(filepath.Join(p.QueueDirectory, q), acc)
 		if err != nil {
 			acc.AddError(fmt.Errorf("error scanning queue %s: %s", q, err))
 			continue
@@ -90,30 +91,6 @@ func (p *Postfix) Gather(acc telegraf.Accumulator) error {
 		acc.AddFields("postfix_queue", fields, map[string]string{"queue": q})
 	}
 
-	var dLength, dSize int64
-	dAge := int64(-1)
-	for _, q := range []string{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"} {
-		length, size, age, err := qScan(path.Join(p.QueueDirectory, "deferred", q))
-		if err != nil {
-			if os.IsNotExist(err) {
-				// the directories are created on first use
-				continue
-			}
-			acc.AddError(fmt.Errorf("error scanning queue deferred/%s: %s", q, err))
-			return nil
-		}
-		dLength += length
-		dSize += size
-		if age > dAge {
-			dAge = age
-		}
-	}
-	fields := map[string]interface{}{"length": dLength, "size": dSize}
-	if dAge != -1 {
-		fields["age"] = dAge
-	}
-	acc.AddFields("postfix_queue", fields, map[string]string{"queue": "deferred"})
-
 	return nil
 }
 

plugins/inputs/postfix/postfix_test.go

@@ -3,7 +3,7 @@ package postfix
 import (
 	"io/ioutil"
 	"os"
-	"path"
+	"path/filepath"
 	"testing"
 
 	"github.com/influxdata/telegraf/testutil"
@@ -16,19 +16,16 @@ func TestGather(t *testing.T) {
 	require.NoError(t, err)
 	defer os.RemoveAll(td)
 
-	for _, q := range []string{"active", "hold", "incoming", "maildrop", "deferred"} {
-		require.NoError(t, os.Mkdir(path.Join(td, q), 0755))
-	}
-	for _, q := range []string{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "F"} { // "E" deliberately left off
-		require.NoError(t, os.Mkdir(path.Join(td, "deferred", q), 0755))
+	for _, q := range []string{"active", "hold", "incoming", "maildrop", "deferred/0/0", "deferred/F/F"} {
+		require.NoError(t, os.MkdirAll(filepath.FromSlash(td+"/"+q), 0755))
 	}
 
-	require.NoError(t, ioutil.WriteFile(path.Join(td, "active", "01"), []byte("abc"), 0644))
-	require.NoError(t, ioutil.WriteFile(path.Join(td, "active", "02"), []byte("defg"), 0644))
-	require.NoError(t, ioutil.WriteFile(path.Join(td, "hold", "01"), []byte("abc"), 0644))
-	require.NoError(t, ioutil.WriteFile(path.Join(td, "incoming", "01"), []byte("abcd"), 0644))
-	require.NoError(t, ioutil.WriteFile(path.Join(td, "deferred", "0", "01"), []byte("abc"), 0644))
-	require.NoError(t, ioutil.WriteFile(path.Join(td, "deferred", "F", "F1"), []byte("abc"), 0644))
+	require.NoError(t, ioutil.WriteFile(filepath.FromSlash(td+"/active/01"), []byte("abc"), 0644))
+	require.NoError(t, ioutil.WriteFile(filepath.FromSlash(td+"/active/02"), []byte("defg"), 0644))
+	require.NoError(t, ioutil.WriteFile(filepath.FromSlash(td+"/hold/01"), []byte("abc"), 0644))
+	require.NoError(t, ioutil.WriteFile(filepath.FromSlash(td+"/incoming/01"), []byte("abcd"), 0644))
+	require.NoError(t, ioutil.WriteFile(filepath.FromSlash(td+"/deferred/0/0/01"), []byte("abc"), 0644))
+	require.NoError(t, ioutil.WriteFile(filepath.FromSlash(td+"/deferred/F/F/F1"), []byte("abc"), 0644))
 
 	p := Postfix{
 		QueueDirectory: td,

plugins/inputs/tail/README.md

@@ -1,4 +1,4 @@
-# tail Input Plugin
+# Tail Input Plugin
 
 The tail plugin "tails" a logfile and parses each log message.
 
@@ -49,3 +49,7 @@ The plugin expects messages in one of the
   data_format = "influx"
 ```
 
+### Metrics:
+
+Metrics are produced according to the `data_format` option.  Additionally a
+tag labeled `path` is added to the metric containing the filename being tailed.

plugins/inputs/tail/tail.go

@@ -146,7 +146,11 @@ func (t *Tail) receiver(tailer *tail.Tail) {
 
 		m, err = t.parser.ParseLine(text)
 		if err == nil {
-			t.acc.AddFields(m.Name(), m.Fields(), m.Tags(), m.Time())
+			if m != nil {
+				tags := m.Tags()
+				tags["path"] = tailer.Filename
+				t.acc.AddFields(m.Name(), m.Fields(), tags, m.Time())
+			}
 		} else {
 			t.acc.AddError(fmt.Errorf("E! Malformed log line in %s: [%s], Error: %s\n",
 				tailer.Filename, line.Text, err))

plugins/inputs/tcp_listener/tcp_listener_test.go

@@ -300,7 +300,10 @@ func TestRunParserJSONMsg(t *testing.T) {
 	listener.acc = &acc
 	defer close(listener.done)
 
-	listener.parser, _ = parsers.NewJSONParser("udp_json_test", []string{}, nil)
+	listener.parser, _ = parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: "udp_json_test",
+	})
 	listener.wg.Add(1)
 	go listener.tcpParser()
 

plugins/inputs/udp_listener/udp_listener_test.go

@@ -193,7 +193,10 @@ func TestRunParserJSONMsg(t *testing.T) {
 	listener.acc = &acc
 	defer close(listener.done)
 
-	listener.parser, _ = parsers.NewJSONParser("udp_json_test", []string{}, nil)
+	listener.parser, _ = parsers.NewParser(&parsers.Config{
+		DataFormat: "json",
+		MetricName: "udp_json_test",
+	})
 	listener.wg.Add(1)
 	go listener.udpParser()
 

plugins/parsers/json/parser.go

@@ -20,6 +20,7 @@ var (
 type JSONParser struct {
 	MetricName  string
 	TagKeys     []string
+	FieldKeys   []string
 	DefaultTags map[string]string
 }
 
@@ -86,6 +87,17 @@ func (p *JSONParser) switchFieldToTag(tags map[string]string, fields map[string]
 		}
 	}
 
+	//if field_keys is specified, only those values should be reported as fields
+	if len(p.FieldKeys) > 0 {
+		nFields := make(map[string]interface{})
+		for _, name := range p.FieldKeys {
+			if fields[name] != nil {
+				nFields[name] = fields[name]
+			}
+		}
+		return tags, nFields
+	}
+
 	//remove any additional string/bool values from fields
 	for k := range fields {
 		switch fields[k].(type) {

plugins/parsers/json/parser_test.go

@@ -1,6 +1,7 @@
 package json
 
 import (
+	"log"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -448,22 +449,28 @@ func TestJSONParseNestedArray(t *testing.T) {
 	"total_devices": 5,
 	"total_threads": 10,
 	"shares": {
-	"total": 5,
-	"accepted": 5,
-	"rejected": 0,
-	"avg_find_time": 4,
-	"tester": "work",
-	"tester2": "don't want this",
-	"tester3": 7.93
+		"total": 5,
+		"accepted": 5,
+		"rejected": 0,
+		"avg_find_time": 4,
+		"tester": "work",
+		"tester2": "don't want this",
+		"tester3": {
+			"hello":"sup",
+			"fun":"money",
+			"break":9
+		}
 	}
 	}`
 
 	parser := JSONParser{
 		MetricName: "json_test",
-		TagKeys:    []string{"total_devices", "total_threads", "shares_tester", "shares_tester3"},
+		TagKeys:    []string{"total_devices", "total_threads", "shares_tester3_fun"},
+		FieldKeys:  []string{"shares_tester", "shares_tester3_break"},
 	}
 
 	metrics, err := parser.Parse([]byte(testString))
+	log.Printf("m[0] name: %v, tags: %v, fields: %v", metrics[0].Name(), metrics[0].Tags(), metrics[0].Fields())
 	require.NoError(t, err)
 	require.Equal(t, len(parser.TagKeys), len(metrics[0].Tags()))
 }

plugins/parsers/registry.go

@@ -56,6 +56,8 @@ type Config struct {
 
 	// TagKeys only apply to JSON data
 	TagKeys []string
+	// FieldKeys only apply to JSON
+	FieldKeys []string
 	// MetricName applies to JSON & value. This will be the name of the measurement.
 	MetricName string
 
@@ -95,8 +97,8 @@ func NewParser(config *Config) (Parser, error) {
 	var parser Parser
 	switch config.DataFormat {
 	case "json":
-		parser, err = NewJSONParser(config.MetricName,
-			config.TagKeys, config.DefaultTags)
+		parser, err = newJSONParser(config.MetricName,
+			config.TagKeys, config.FieldKeys, config.DefaultTags)
 	case "value":
 		parser, err = NewValueParser(config.MetricName,
 			config.DataType, config.DefaultTags)
@@ -126,6 +128,22 @@ func NewParser(config *Config) (Parser, error) {
 	return parser, err
 }
 
+func newJSONParser(
+	metricName string,
+	tagKeys []string,
+	fieldKeys []string,
+	defaultTags map[string]string,
+) (Parser, error) {
+	parser := &json.JSONParser{
+		MetricName:  metricName,
+		TagKeys:     tagKeys,
+		FieldKeys:   fieldKeys,
+		DefaultTags: defaultTags,
+	}
+	return parser, nil
+}
+
+//Deprecated: Use NewParser to get a JSONParser object
 func NewJSONParser(
 	metricName string,
 	tagKeys []string,