ing

.gitignore

@@ -0,0 +1,68 @@
+# Created by .ignore support plugin (hsz.mobi)
+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff:
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/dictionaries
+
+# Sensitive or high-churn files:
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.xml
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+
+# Gradle:
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Mongo Explorer plugin:
+.idea/**/mongoSettings.xml
+
+## File-based project format:
+*.iws
+
+## Plugin-specific files:
+
+# IntelliJ
+/out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+### Go template
+# Binaries for programs and plugins
+*.exe
+*.dll
+*.so
+*.dylib
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
+.glide/
+.idea/
+*.iml
+
+vendor/
+glide.lock
+.DS_Store
+dist/
+debug

.vscode/launch.json

@@ -0,0 +1,32 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Debug",
+            "type": "go",
+            "request": "launch",
+            "mode": "debug",
+            "remotePath": "",
+            "port": 2345,
+            "host": "127.0.0.1",
+            "program": "${workspaceRoot}/main.go",
+            "env": {},
+            "args": [],
+            "showLog": true
+        },
+        {
+            "name": "File Debug",
+            "type": "go",
+            "request": "launch",
+            "mode": "debug",
+            "remotePath": "",
+            "port": 2345,
+            "host": "127.0.0.1",
+            "program": "${fileDirname}",
+            "env": {},
+            "args": [],
+            "showLog": true
+        }
+
+    ]
+}

.vscode/settings.json

@@ -0,0 +1,11 @@
+// Place your settings in this file to overwrite default and user settings.
+{
+  // Specifies Lint tool name.
+  "go.lintTool": "gometalinter",
+
+  // Flags to pass to Lint tool (e.g. ["-min_confidence=.8"])
+  "go.lintFlags": [
+    "--config=${workspaceRoot}/golint.json"
+  ]
+
+}

config.json

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+{
+  "external": {
+    "grpc": {
+      "network": "tcp4",
+      "address": "192.168.1.50:50006"
+    },
+    "kafka": {
+      "consumers": {
+        "metric": {
+          "brokers": [
+            "192.168.1.50:9092"
+          ],
+          "groupID": "overflow-metric-group-id",
+          "topic": "overflow-metric-topic",
+          "minBytes": 10000,
+          "maxBytes": 1000000
+        }
+      }
+    }
+  }
+}

config/config.go

@@ -0,0 +1,9 @@
+package config
+
+import (
+	occe "git.loafle.net/overflow/commons-go/config/external"
+)
+
+type Config struct {
+	External *occe.External `json:"external"`
+}

consumer/consumer-handler.go

@@ -0,0 +1,69 @@
+package consumer
+
+import (
+	"sync/atomic"
+
+	oc "git.loafle.net/overflow/consumer"
+	"git.loafle.net/overflow/consumer_metric/config"
+	oe "git.loafle.net/overflow/external-go"
+	"github.com/segmentio/kafka-go"
+)
+
+type ConsumerHandler interface {
+	oc.ConsumerHandler
+}
+
+type ConsumerHandlers struct {
+	oc.ConsumerHandlers
+
+	Config *config.Config
+
+	validated atomic.Value
+}
+
+func (ch *ConsumerHandlers) Init(consumerCtx oc.ConsumerCtx) error {
+	if err := ch.ConsumerHandlers.Init(consumerCtx); nil != err {
+		return err
+	}
+	oe.InitPackage(ch.Config.External)
+
+	return nil
+}
+
+func (ch *ConsumerHandlers) OnStart(consumerCtx oc.ConsumerCtx) error {
+	if err := ch.ConsumerHandlers.OnStart(consumerCtx); nil != err {
+		return err
+	}
+	oe.StartPackage(ch.Config.External)
+
+	return nil
+}
+
+func (ch *ConsumerHandlers) OnStop(consumerCtx oc.ConsumerCtx) {
+	oe.StopPackage(ch.Config.External)
+
+	ch.ConsumerHandlers.OnStop(consumerCtx)
+}
+
+func (ch *ConsumerHandlers) Destroy(consumerCtx oc.ConsumerCtx) {
+	oe.DestroyPackage(ch.Config.External)
+
+	ch.ConsumerHandlers.Destroy(consumerCtx)
+}
+
+func (ch *ConsumerHandlers) OnMessage(msg *kafka.Message) {
+
+}
+
+func (ch *ConsumerHandlers) Validate() error {
+	if err := ch.ConsumerHandlers.Validate(); nil != err {
+		return err
+	}
+
+	if nil != ch.validated.Load() {
+		return nil
+	}
+	ch.validated.Store(true)
+
+	return nil
+}

consumer/consumer.go

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+package consumer
+
+import (
+	oc "git.loafle.net/overflow/consumer"
+	"git.loafle.net/overflow/consumer_metric/config"
+)
+
+func New(_config *config.Config) *oc.Consumer {
+	ch := &ConsumerHandlers{
+		Config: _config,
+	}
+	ch.Name = "Metric"
+	ch.ConsumerName = "metric"
+
+	c := &oc.Consumer{
+		ConsumerHandler: ch,
+	}
+
+	return c
+}

glide.yaml

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+package: git.loafle.net/overflow/consumer_metric
+import:
+- package: git.loafle.net/commons/configuration-go
+- package: git.loafle.net/commons/logging-go
+- package: git.loafle.net/overflow/commons-go
+  subpackages:
+  - config/external
+- package: github.com/segmentio/kafka-go
+- package: git.loafle.net/overflow/consumer
+- package: git.loafle.net/overflow/external-go

main.go

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+package main
+
+import (
+	"context"
+	"flag"
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"git.loafle.net/commons/configuration-go"
+	"git.loafle.net/commons/logging-go"
+	"git.loafle.net/overflow/consumer_metric/config"
+	"git.loafle.net/overflow/consumer_metric/consumer"
+)
+
+var (
+	configDir *string
+)
+
+func init() {
+	configDir = flag.String("config-dir", "./", "Config directory")
+	logConfigPath := flag.String("log-config", "", "logging config path")
+	flag.Parse()
+
+	logging.InitializeLogger(*logConfigPath)
+}
+
+func main() {
+	defer logging.Logger().Sync()
+
+	_config := &config.Config{}
+	configuration.SetConfigPath(*configDir)
+	if err := configuration.Load(_config, "config.json"); nil != err {
+		logging.Logger().Panic(err)
+	}
+
+	c := consumer.New(_config)
+
+	err := c.Start()
+	if nil != err {
+		log.Printf("err: %v", err)
+		os.Exit(1)
+	}
+
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt,
+		syscall.SIGKILL,
+		syscall.SIGSTOP,
+		syscall.SIGHUP,
+		syscall.SIGINT,
+		syscall.SIGTERM,
+		syscall.SIGQUIT)
+
+	<-interrupt
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+	if err := c.Stop(ctx); err != nil {
+		logging.Logger().Errorf("error: %v", err)
+	}
+}