func resourceIndexTemplateRead()

in internal/elasticsearch/index/template.go [346:419]
68 lines of code
21 McCabe index (conditional complexity)

func resourceIndexTemplateRead(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
	client, diags := clients.NewApiClientFromSDKResource(d, meta)
	if diags.HasError() {
		return diags
	}
	compId, diags := clients.CompositeIdFromStr(d.Id())
	if diags.HasError() {
		return diags
	}
	templateId := compId.ResourceId

	tpl, diags := elasticsearch.GetIndexTemplate(ctx, client, templateId)
	if tpl == nil && diags == nil {
		tflog.Warn(ctx, fmt.Sprintf(`Index template "%s" not found, removing from state`, compId.ResourceId))
		d.SetId("")
		return diags
	}
	if diags.HasError() {
		return diags
	}

	// set the fields
	if err := d.Set("name", tpl.Name); err != nil {
		return diag.FromErr(err)
	}
	if err := d.Set("composed_of", tpl.IndexTemplate.ComposedOf); err != nil {
		return diag.FromErr(err)
	}
	if stream := tpl.IndexTemplate.DataStream; stream != nil {
		ds := make([]interface{}, 1)
		dSettings := make(map[string]interface{})
		if v := stream.Hidden; v != nil {
			dSettings["hidden"] = *v
		}
		if v := stream.AllowCustomRouting; v != nil {
			dSettings["allow_custom_routing"] = *v
		}
		ds[0] = dSettings
		if err := d.Set("data_stream", ds); err != nil {
			return diag.FromErr(err)
		}
	}
	if err := d.Set("index_patterns", tpl.IndexTemplate.IndexPatterns); err != nil {
		return diag.FromErr(err)
	}
	if tpl.IndexTemplate.Meta != nil {
		metadata, err := json.Marshal(tpl.IndexTemplate.Meta)
		if err != nil {
			return diag.FromErr(err)
		}
		if err := d.Set("metadata", string(metadata)); err != nil {
			return diag.FromErr(err)
		}
	}
	if err := d.Set("priority", tpl.IndexTemplate.Priority); err != nil {
		return diag.FromErr(err)
	}

	if tpl.IndexTemplate.Template != nil {
		template, diags := flattenTemplateData(tpl.IndexTemplate.Template)
		if diags.HasError() {
			return diags
		}
		if err := d.Set("template", template); err != nil {
			return diag.FromErr(err)
		}
	}

	if err := d.Set("version", tpl.IndexTemplate.Version); err != nil {
		return diag.FromErr(err)
	}

	return diags
}