feat(dms): support to get kafka topic producers

docs/data-sources/dms_kafka_topic_producers.md

@@ -0,0 +1,53 @@
+---
+subcategory: "Distributed Message Service (DMS)"
+layout: "huaweicloud"
+page_title: "HuaweiCloud: huaweicloud_dms_kafka_topic_producers"
+description: |-
+  Use this data source to get the list of Kafka topic producers.
+---
+
+# huaweicloud_dms_kafka_topic_producers
+
+Use this data source to get the list of Kafka topic producers.
+
+## Example Usage
+
+```hcl
+variable "instance_id" {}
+variable "topic" {}
+
+data "huaweicloud_dms_kafka_topic_producers" "test" {
+  instance_id = var.instance_id
+  topic       = var.topic
+}
+```
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `region` - (Optional, String) Specifies the region in which to query the resource.
+  If omitted, the provider-level region will be used.
+
+* `instance_id` - (Required, String) Specifies the instance ID.
+
+* `topic` - (Required, String) Specifies the topic name.
+
+## Attribute Reference
+
+In addition to all arguments above, the following attributes are exported:
+
+* `id` - The data source ID.
+
+* `producers` - Indicates the producer list.
+
+  The [producers](#producers_struct) structure is documented below.
+
+<a name="producers_struct"></a>
+The `producers` block supports:
+
+* `producer_address` - Indicates the producer address.
+
+* `broker_address` - Indicates the broker address.
+
+* `join_time` - Indicates the time when the broker was connected.

huaweicloud/provider.go

@@ -690,6 +690,7 @@ func Provider() *schema.Provider {
 			"huaweicloud_dms_kafka_smart_connect_tasks":     dms.DataSourceDmsKafkaSmartConnectTasks(),
 			"huaweicloud_dms_kafkav2_smart_connect_tasks":   dms.DataSourceDmsKafkav2SmartConnectTasks(),
 			"huaweicloud_dms_kafka_user_client_quotas":      dms.DataSourceDmsKafkaUserClientQuotas(),
+			"huaweicloud_dms_kafka_topic_producers":         dms.DataSourceDmsKafkaTopicProducers(),
 			"huaweicloud_dms_kafka_topics":                  dms.DataSourceDmsKafkaTopics(),
 			"huaweicloud_dms_kafka_users":                   dms.DataSourceDmsKafkaUsers(),
 			"huaweicloud_dms_kafka_message_diagnosis_tasks": dms.DataSourceDmsKafkaMessageDiagnosisTasks(),

huaweicloud/services/acceptance/dms/data_source_huaweicloud_dms_kafka_topic_producers_test.go

@@ -0,0 +1,44 @@
+package dms
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
+
+	"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance"
+)
+
+func TestAccDataSourceDmsKafkaTopicProducers_basic(t *testing.T) {
+	dataSource := "data.huaweicloud_dms_kafka_topic_producers.test"
+	dc := acceptance.InitDataSourceCheck(dataSource)
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck: func() {
+			acceptance.TestAccPreCheck(t)
+			acceptance.TestAccPreCheckDMSKafkaInstanceID(t)
+			acceptance.TestAccPreCheckDMSKafkaTopicName(t)
+		},
+		ProviderFactories: acceptance.TestAccProviderFactories,
+		Steps: []resource.TestStep{
+			{
+				Config: testDataSourceDmsKafkaTopicProducers_basic(),
+				Check: resource.ComposeTestCheckFunc(
+					dc.CheckResourceExists(),
+					resource.TestCheckResourceAttrSet(dataSource, "producers.#"),
+					resource.TestCheckResourceAttrSet(dataSource, "producers.0.producer_address"),
+					resource.TestCheckResourceAttrSet(dataSource, "producers.0.broker_address"),
+					resource.TestCheckResourceAttrSet(dataSource, "producers.0.join_time"),
+				),
+			},
+		},
+	})
+}
+
+func testDataSourceDmsKafkaTopicProducers_basic() string {
+	return fmt.Sprintf(`
+data "huaweicloud_dms_kafka_topic_producers" "test" {
+  instance_id = "%[1]s"
+  topic       = "%[2]s"
+}`, acceptance.HW_DMS_KAFKA_INSTANCE_ID, acceptance.HW_DMS_KAFKA_TOPIC_NAME)
+}

huaweicloud/services/dms/data_source_huaweicloud_dms_kafka_topic_producers.go

@@ -0,0 +1,138 @@
+// Generated by PMS #425
+package dms
+
+import (
+	"context"
+	"strings"
+
+	"github.com/hashicorp/go-multierror"
+	"github.com/hashicorp/go-uuid"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+	"github.com/tidwall/gjson"
+
+	"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/config"
+	"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/helper/httphelper"
+	"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/helper/schemas"
+	"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/utils"
+)
+
+func DataSourceDmsKafkaTopicProducers() *schema.Resource {
+	return &schema.Resource{
+		ReadContext: dataSourceDmsKafkaTopicProducersRead,
+
+		Schema: map[string]*schema.Schema{
+			"region": {
+				Type:        schema.TypeString,
+				Optional:    true,
+				Computed:    true,
+				Description: `Specifies the region in which to query the resource. If omitted, the provider-level region will be used.`,
+			},
+			"instance_id": {
+				Type:        schema.TypeString,
+				Required:    true,
+				Description: `Specifies the instance ID.`,
+			},
+			"topic": {
+				Type:        schema.TypeString,
+				Required:    true,
+				Description: `Specifies the topic name.`,
+			},
+			"producers": {
+				Type:        schema.TypeList,
+				Computed:    true,
+				Description: `Indicates the producer list.`,
+				Elem: &schema.Resource{
+					Schema: map[string]*schema.Schema{
+						"producer_address": {
+							Type:        schema.TypeString,
+							Computed:    true,
+							Description: `Indicates the producer address.`,
+						},
+						"broker_address": {
+							Type:        schema.TypeString,
+							Computed:    true,
+							Description: `Indicates the broker address.`,
+						},
+						"join_time": {
+							Type:        schema.TypeString,
+							Computed:    true,
+							Description: `Indicates the time when the broker was connected.`,
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+type KafkaTopicProducersDSWrapper struct {
+	*schemas.ResourceDataWrapper
+	Config *config.Config
+}
+
+func newKafkaTopicProducersDSWrapper(d *schema.ResourceData, meta interface{}) *KafkaTopicProducersDSWrapper {
+	return &KafkaTopicProducersDSWrapper{
+		ResourceDataWrapper: schemas.NewSchemaWrapper(d),
+		Config:              meta.(*config.Config),
+	}
+}
+
+func dataSourceDmsKafkaTopicProducersRead(_ context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	wrapper := newKafkaTopicProducersDSWrapper(d, meta)
+	lisTopProRst, err := wrapper.ListTopicProducers()
+	if err != nil {
+		return diag.FromErr(err)
+	}
+
+	err = wrapper.listTopicProducersToSchema(lisTopProRst)
+	if err != nil {
+		return diag.FromErr(err)
+	}
+
+	id, err := uuid.GenerateUUID()
+	if err != nil {
+		return diag.FromErr(err)
+	}
+	d.SetId(id)
+	return nil
+}
+
+// @API Kafka GET /v2/{project_id}/kafka/instances/{instance_id}/topics/{topic}/producers
+func (w *KafkaTopicProducersDSWrapper) ListTopicProducers() (*gjson.Result, error) {
+	client, err := w.NewClient(w.Config, "dmsv2")
+	if err != nil {
+		return nil, err
+	}
+
+	uri := "/v2/{project_id}/kafka/instances/{instance_id}/topics/{topic}/producers"
+	uri = strings.ReplaceAll(uri, "{instance_id}", w.Get("instance_id").(string))
+	uri = strings.ReplaceAll(uri, "{topic}", w.Get("topic").(string))
+	return httphelper.New(client).
+		Method("GET").
+		URI(uri).
+		OffsetPager("producers", "offset", "limit", 0).
+		Request().
+		Result()
+}
+
+func (w *KafkaTopicProducersDSWrapper) listTopicProducersToSchema(body *gjson.Result) error {
+	d := w.ResourceData
+	mErr := multierror.Append(nil,
+		d.Set("region", w.Config.GetRegion(w.ResourceData)),
+		d.Set("producers", schemas.SliceToList(body.Get("producers"),
+			func(producers gjson.Result) any {
+				return map[string]any{
+					"producer_address": producers.Get("producer_address").Value(),
+					"broker_address":   producers.Get("broker_address").Value(),
+					"join_time":        w.setProducersJoinTime(producers),
+				}
+			},
+		)),
+	)
+	return mErr.ErrorOrNil()
+}
+
+func (*KafkaTopicProducersDSWrapper) setProducersJoinTime(data gjson.Result) string {
+	return utils.FormatTimeStampRFC3339((data.Get("join_time").Int())/1000, true)
+}