code.cloudfoundry.org/cli@v7.1.0+incompatible/resources/application_resource.go (about)

     1  package resources
     2  
     3  import (
     4  	"encoding/json"
     5  
     6  	"code.cloudfoundry.org/cli/api/cloudcontroller"
     7  	"code.cloudfoundry.org/cli/api/cloudcontroller/ccv3/constant"
     8  )
     9  
    10  // Application represents a Cloud Controller V3 Application.
    11  type Application struct {
    12  	// GUID is the unique application identifier.
    13  	GUID string
    14  	// StackName is the name of the stack on which the application runs.
    15  	StackName string
    16  	// LifecycleBuildpacks is a list of the names of buildpacks.
    17  	LifecycleBuildpacks []string
    18  	// LifecycleType is the type of the lifecycle.
    19  	LifecycleType constant.AppLifecycleType
    20  	// Metadata is used for custom tagging of API resources
    21  	Metadata *Metadata
    22  	// Name is the name given to the application.
    23  	Name string
    24  	// SpaceGUID is the unique identifier of the parent space.
    25  	SpaceGUID string
    26  	// State is the desired state of the application.
    27  	State constant.ApplicationState
    28  }
    29  
    30  // MarshalJSON converts an Application into a Cloud Controller Application.
    31  func (a Application) MarshalJSON() ([]byte, error) {
    32  	ccApp := ccApplication{
    33  		Name:     a.Name,
    34  		Metadata: a.Metadata,
    35  	}
    36  
    37  	if a.SpaceGUID != "" {
    38  		ccApp.Relationships = Relationships{
    39  			constant.RelationshipTypeSpace: Relationship{GUID: a.SpaceGUID},
    40  		}
    41  	}
    42  
    43  	if a.LifecycleType == constant.AppLifecycleTypeDocker {
    44  		ccApp.setDockerLifecycle()
    45  	} else if a.LifecycleType == constant.AppLifecycleTypeBuildpack {
    46  		if len(a.LifecycleBuildpacks) > 0 || a.StackName != "" {
    47  			if a.hasAutodetectedBuildpack() {
    48  				ccApp.setAutodetectedBuildpackLifecycle(a)
    49  			} else {
    50  				ccApp.setBuildpackLifecycle(a)
    51  			}
    52  		}
    53  	}
    54  
    55  	return json.Marshal(ccApp)
    56  }
    57  
    58  // UnmarshalJSON helps unmarshal a Cloud Controller Application response.
    59  func (a *Application) UnmarshalJSON(data []byte) error {
    60  	lifecycle := ccLifecycle{}
    61  	ccApp := ccApplication{
    62  		Lifecycle: &lifecycle,
    63  	}
    64  
    65  	err := cloudcontroller.DecodeJSON(data, &ccApp)
    66  	if err != nil {
    67  		return err
    68  	}
    69  
    70  	a.GUID = ccApp.GUID
    71  	a.StackName = lifecycle.Data.Stack
    72  	a.LifecycleBuildpacks = lifecycle.Data.Buildpacks
    73  	a.LifecycleType = lifecycle.Type
    74  	a.Name = ccApp.Name
    75  	a.SpaceGUID = ccApp.Relationships[constant.RelationshipTypeSpace].GUID
    76  	a.State = ccApp.State
    77  	a.Metadata = ccApp.Metadata
    78  
    79  	return nil
    80  }
    81  
    82  func (a Application) Started() bool {
    83  	return a.State == constant.ApplicationStarted
    84  }
    85  
    86  func (a Application) Stopped() bool {
    87  	return a.State == constant.ApplicationStopped
    88  }
    89  
    90  func (a Application) hasAutodetectedBuildpack() bool {
    91  	if len(a.LifecycleBuildpacks) == 0 {
    92  		return false
    93  	}
    94  	return a.LifecycleBuildpacks[0] == constant.AutodetectBuildpackValueDefault || a.LifecycleBuildpacks[0] == constant.AutodetectBuildpackValueNull
    95  }
    96  
    97  type ccLifecycle struct {
    98  	Type constant.AppLifecycleType `json:"type,omitempty"`
    99  	Data struct {
   100  		Buildpacks []string `json:"buildpacks,omitempty"`
   101  		Stack      string   `json:"stack,omitempty"`
   102  	} `json:"data"`
   103  }
   104  
   105  type ccApplication struct {
   106  	Name          string                    `json:"name,omitempty"`
   107  	Relationships Relationships             `json:"relationships,omitempty"`
   108  	Lifecycle     interface{}               `json:"lifecycle,omitempty"`
   109  	GUID          string                    `json:"guid,omitempty"`
   110  	State         constant.ApplicationState `json:"state,omitempty"`
   111  	Metadata      *Metadata                 `json:"metadata,omitempty"`
   112  }
   113  
   114  func (ccApp *ccApplication) setAutodetectedBuildpackLifecycle(a Application) {
   115  	var nullBuildpackLifecycle struct {
   116  		Type constant.AppLifecycleType `json:"type,omitempty"`
   117  		Data struct {
   118  			Buildpacks []string `json:"buildpacks"`
   119  			Stack      string   `json:"stack,omitempty"`
   120  		} `json:"data"`
   121  	}
   122  	nullBuildpackLifecycle.Type = constant.AppLifecycleTypeBuildpack
   123  	nullBuildpackLifecycle.Data.Stack = a.StackName
   124  	ccApp.Lifecycle = nullBuildpackLifecycle
   125  }
   126  
   127  func (ccApp *ccApplication) setBuildpackLifecycle(a Application) {
   128  	var lifecycle ccLifecycle
   129  	lifecycle.Type = a.LifecycleType
   130  	lifecycle.Data.Buildpacks = a.LifecycleBuildpacks
   131  	lifecycle.Data.Stack = a.StackName
   132  	ccApp.Lifecycle = lifecycle
   133  }
   134  
   135  func (ccApp *ccApplication) setDockerLifecycle() {
   136  	ccApp.Lifecycle = ccLifecycle{
   137  		Type: constant.AppLifecycleTypeDocker,
   138  	}
   139  }