Example #1
0
func (es *ElasticSearch) Conn() error {
	client, err := elastic.NewClient(
		elastic.SetURL(es.uri),
		elastic.SetSniff(false),
		elastic.SetHealthcheckInterval(10*time.Second),
		elastic.SetMaxRetries(5))

	if err != nil {
		// Handle error
		return err
	}

	exists, err := client.IndexExists(es.index).Do()
	if err != nil {
		// Handle error
		return err
	}
	if !exists {
		// Create a new index.
		createIndex, err := client.CreateIndex(es.index).Do()
		if err != nil {
			// Handle error
			return err
		}
		if !createIndex.Acknowledged {
			// Not acknowledged
		}
	}

	es.client = client
	return nil
}
Example #2
0
// InitClient sets up the elastic client. If the client has already been
// initalized it is a noop
func (e LogstashElasticHosts) InitClient() error {
	if lsClient == nil {
		var err error
		lsClient, err = elastic.NewClient(elastic.SetURL(e...), elastic.SetMaxRetries(10))
		if err != nil {
			return err
		}
	}
	return nil
}
func TestCreateElasticSearchConfig(t *testing.T) {
	url, err := url.Parse("?nodes=https://foo.com:20468&nodes=https://bar.com:20468&esUserName=test&esUserSecret=password&maxRetries=10&startupHealthcheckTimeout=30&sniff=false&healthCheck=false")
	if err != nil {
		t.Fatalf("Error when parsing URL: %s", err.Error())
	}

	config, err := CreateElasticSearchConfig(url)
	if err != nil {
		t.Fatalf("Error when creating config: %s", err.Error())
	}

	expectedClient, err := elastic.NewClient(
		elastic.SetURL("https://foo.com:20468", "https://bar.com:20468"),
		elastic.SetBasicAuth("test", "password"),
		elastic.SetMaxRetries(10),
		elastic.SetHealthcheckTimeoutStartup(30*time.Second),
		elastic.SetSniff(false), elastic.SetHealthcheck(false))

	if err != nil {
		t.Fatalf("Error when creating client: %s", err.Error())
	}

	actualClientRefl := reflect.ValueOf(config.EsClient).Elem()
	expectedClientRefl := reflect.ValueOf(expectedClient).Elem()

	if actualClientRefl.FieldByName("basicAuthUsername").String() != expectedClientRefl.FieldByName("basicAuthUsername").String() {
		t.Fatalf("basicAuthUsername is not equal")
	}
	if actualClientRefl.FieldByName("basicAuthUsername").String() != expectedClientRefl.FieldByName("basicAuthUsername").String() {
		t.Fatalf("basicAuthUsername is not equal")
	}
	if actualClientRefl.FieldByName("maxRetries").Int() != expectedClientRefl.FieldByName("maxRetries").Int() {
		t.Fatalf("maxRetries is not equal")
	}
	if actualClientRefl.FieldByName("healthcheckTimeoutStartup").Int() != expectedClientRefl.FieldByName("healthcheckTimeoutStartup").Int() {
		t.Fatalf("healthcheckTimeoutStartup is not equal")
	}
	if actualClientRefl.FieldByName("snifferEnabled").Bool() != expectedClientRefl.FieldByName("snifferEnabled").Bool() {
		t.Fatalf("snifferEnabled is not equal")
	}
	if actualClientRefl.FieldByName("healthcheckEnabled").Bool() != expectedClientRefl.FieldByName("healthcheckEnabled").Bool() {
		t.Fatalf("healthcheckEnabled is not equal")
	}
}
Example #4
0
func ExampleClient_NewClient_manyOptions() {
	// Obtain a client for an Elasticsearch cluster of two nodes,
	// running on 10.0.1.1 and 10.0.1.2. Do not run the sniffer.
	// Set the healthcheck interval to 10s. When requests fail,
	// retry 5 times. Print error messages to os.Stderr and informational
	// messages to os.Stdout.
	client, err := elastic.NewClient(
		elastic.SetURL("http://10.0.1.1:9200", "http://10.0.1.2:9200"),
		elastic.SetSniff(false),
		elastic.SetHealthcheckInterval(10*time.Second),
		elastic.SetMaxRetries(5),
		elastic.SetErrorLog(log.New(os.Stderr, "ELASTIC ", log.LstdFlags)),
		elastic.SetInfoLog(log.New(os.Stdout, "", log.LstdFlags)))
	if err != nil {
		// Handle error
		panic(err)
	}
	_ = client
}
/**
*音乐查询接口1a
 */
func MusicHandler(w http.ResponseWriter, r *http.Request) {
	client, err := elastic.NewClient(elastic.SetURL(urles), elastic.SetMaxRetries(10))
	if err != nil {
		fmt.Fprint(w, "ES联接有问题", err)
	} else {
		jsdata := r.FormValue("jsondata")

		var conds Conditions
		err := json.Unmarshal([]byte(jsdata), &conds)
		if err != nil {
			fmt.Println("格式存在问题")
			fmt.Fprint(w, "格式存在问题")
		} else if len(conds.UserKey) <= 0 {
			fmt.Fprint(w, "请出示你的Key")

		} else {
			fmt.Println(conds.ArtisName, conds.Special, conds.Name)
			fmt.Fprint(w, getData(*client, conds))
		}
	}

}
Example #6
0
func (t *TestCase) setup() error {
	var errorlogger *log.Logger
	if t.errorlogfile != "" {
		f, err := os.OpenFile(t.errorlogfile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0664)
		if err != nil {
			return err
		}
		errorlogger = log.New(f, "", log.Ltime|log.Lmicroseconds|log.Lshortfile)
	}

	var infologger *log.Logger
	if t.infologfile != "" {
		f, err := os.OpenFile(t.infologfile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0664)
		if err != nil {
			return err
		}
		infologger = log.New(f, "", log.LstdFlags)
	}

	// Trace request and response details like this
	var tracelogger *log.Logger
	if t.tracelogfile != "" {
		f, err := os.OpenFile(t.tracelogfile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0664)
		if err != nil {
			return err
		}
		tracelogger = log.New(f, "", log.LstdFlags)
	}

	client, err := elastic.NewClient(
		elastic.SetURL(t.nodes...),
		elastic.SetErrorLog(errorlogger),
		elastic.SetInfoLog(infologger),
		elastic.SetTraceLog(tracelogger),
		elastic.SetMaxRetries(t.maxRetries),
		elastic.SetSniff(t.sniff),
		elastic.SetSnifferInterval(t.snifferInterval),
		elastic.SetHealthcheck(t.healthcheck),
		elastic.SetHealthcheckInterval(t.healthcheckInterval))
	if err != nil {
		// Handle error
		return err
	}
	t.client = client

	// Use the IndexExists service to check if a specified index exists.
	exists, err := t.client.IndexExists(t.index).Do()
	if err != nil {
		return err
	}
	if exists {
		deleteIndex, err := t.client.DeleteIndex(t.index).Do()
		if err != nil {
			return err
		}
		if !deleteIndex.Acknowledged {
			return errors.New("delete index not acknowledged")
		}
	}

	// Create a new index.
	createIndex, err := t.client.CreateIndex(t.index).Do()
	if err != nil {
		return err
	}
	if !createIndex.Acknowledged {
		return errors.New("create index not acknowledged")
	}

	// Index a tweet (using JSON serialization)
	tweet1 := Tweet{User: "******", Message: "Take Five", Retweets: 0}
	_, err = t.client.Index().
		Index(t.index).
		Type("tweet").
		Id("1").
		BodyJson(tweet1).
		Do()
	if err != nil {
		return err
	}

	// Index a second tweet (by string)
	tweet2 := `{"user" : "olivere", "message" : "It's a Raggy Waltz"}`
	_, err = t.client.Index().
		Index(t.index).
		Type("tweet").
		Id("2").
		BodyString(tweet2).
		Do()
	if err != nil {
		return err
	}

	// Flush to make sure the documents got written.
	_, err = t.client.Flush().Index(t.index).Do()
	if err != nil {
		return err
	}

	return nil
}
Example #7
0
// CreateElasticSearchConfig creates an ElasticSearch configuration struct
// which contains an ElasticSearch client for later use
func CreateElasticSearchConfig(uri *url.URL) (*ElasticSearchConfig, error) {

	var esConfig ElasticSearchConfig
	opts, err := url.ParseQuery(uri.RawQuery)
	if err != nil {
		return nil, fmt.Errorf("failed to parser url's query string: %s", err)
	}

	// set the index for es,the default value is "heapster"
	esConfig.Index = ESIndex
	if len(opts["index"]) > 0 {
		esConfig.Index = opts["index"][0]
	}

	// Set the URL endpoints of the ES's nodes. Notice that when sniffing is
	// enabled, these URLs are used to initially sniff the cluster on startup.
	if len(opts["nodes"]) < 1 {
		return nil, fmt.Errorf("There is no node assigned for connecting ES cluster")
	}

	startupFns := []elastic.ClientOptionFunc{elastic.SetURL(opts["nodes"]...)}

	// If the ES cluster needs authentication, the username and secret
	// should be set in sink config.Else, set the Authenticate flag to false
	if len(opts["esUserName"]) > 0 && len(opts["esUserSecret"]) > 0 {
		startupFns = append(startupFns, elastic.SetBasicAuth(opts["esUserName"][0], opts["esUserSecret"][0]))
	}

	if len(opts["maxRetries"]) > 0 {
		maxRetries, err := strconv.Atoi(opts["maxRetries"][0])
		if err != nil {
			return nil, fmt.Errorf("Failed to parse URL's maxRetries value into an int")
		}
		startupFns = append(startupFns, elastic.SetMaxRetries(maxRetries))
	}

	if len(opts["healthCheck"]) > 0 {
		healthCheck, err := strconv.ParseBool(opts["healthCheck"][0])
		if err != nil {
			return nil, fmt.Errorf("Failed to parse URL's healthCheck value into a bool")
		}
		startupFns = append(startupFns, elastic.SetHealthcheck(healthCheck))
	}

	if len(opts["sniff"]) > 0 {
		sniff, err := strconv.ParseBool(opts["sniff"][0])
		if err != nil {
			return nil, fmt.Errorf("Failed to parse URL's sniff value into a bool")
		}
		startupFns = append(startupFns, elastic.SetSniff(sniff))
	}

	if len(opts["startupHealthcheckTimeout"]) > 0 {
		timeout, err := time.ParseDuration(opts["startupHealthcheckTimeout"][0] + "s")
		if err != nil {
			return nil, fmt.Errorf("Failed to parse URL's startupHealthcheckTimeout: %s", err.Error())
		}
		startupFns = append(startupFns, elastic.SetHealthcheckTimeoutStartup(timeout))
	}

	esConfig.EsClient, err = elastic.NewClient(startupFns...)
	if err != nil {
		return nil, fmt.Errorf("failed to create ElasticSearch client: %v", err)
	}

	glog.V(2).Infof("elasticsearch sink configure successfully")

	return &esConfig, nil
}