github.com/huaweicloud/golangsdk@v0.0.0-20210831081626-d823fe11ceba/openstack/blockstorage/extensions/services/results.go (about)

     1  package services
     2  
     3  import (
     4  	"encoding/json"
     5  	"time"
     6  
     7  	"github.com/huaweicloud/golangsdk"
     8  	"github.com/huaweicloud/golangsdk/pagination"
     9  )
    10  
    11  // Service represents a Blockstorage service in the OpenStack cloud.
    12  type Service struct {
    13  	// The binary name of the service.
    14  	Binary string `json:"binary"`
    15  
    16  	// The reason for disabling a service.
    17  	DisabledReason string `json:"disabled_reason"`
    18  
    19  	// The name of the host.
    20  	Host string `json:"host"`
    21  
    22  	// The state of the service. One of up or down.
    23  	State string `json:"state"`
    24  
    25  	// The status of the service. One of available or unavailable.
    26  	Status string `json:"status"`
    27  
    28  	// The date and time stamp when the extension was last updated.
    29  	UpdatedAt time.Time `json:"-"`
    30  
    31  	// The availability zone name.
    32  	Zone string `json:"zone"`
    33  
    34  	// The following fields are optional
    35  
    36  	// The host is frozen or not. Only in cinder-volume service.
    37  	Frozen bool `json:"frozen"`
    38  
    39  	// The cluster name. Only in cinder-volume service.
    40  	Cluster string `json:"cluster"`
    41  
    42  	// The volume service replication status. Only in cinder-volume service.
    43  	ReplicationStatus string `json:"replication_status"`
    44  
    45  	// The ID of active storage backend. Only in cinder-volume service.
    46  	ActiveBackendID string `json:"active_backend_id"`
    47  }
    48  
    49  // UnmarshalJSON to override default
    50  func (r *Service) UnmarshalJSON(b []byte) error {
    51  	type tmp Service
    52  	var s struct {
    53  		tmp
    54  		UpdatedAt golangsdk.JSONRFC3339MilliNoZ `json:"updated_at"`
    55  	}
    56  	err := json.Unmarshal(b, &s)
    57  	if err != nil {
    58  		return err
    59  	}
    60  	*r = Service(s.tmp)
    61  
    62  	r.UpdatedAt = time.Time(s.UpdatedAt)
    63  
    64  	return nil
    65  }
    66  
    67  // ServicePage represents a single page of all Services from a List request.
    68  type ServicePage struct {
    69  	pagination.SinglePageBase
    70  }
    71  
    72  // IsEmpty determines whether or not a page of Services contains any results.
    73  func (page ServicePage) IsEmpty() (bool, error) {
    74  	services, err := ExtractServices(page)
    75  	return len(services) == 0, err
    76  }
    77  
    78  func ExtractServices(r pagination.Page) ([]Service, error) {
    79  	var s struct {
    80  		Service []Service `json:"services"`
    81  	}
    82  	err := (r.(ServicePage)).ExtractInto(&s)
    83  	return s.Service, err
    84  }