8b835611d5
Moved functionality to its own file
237 lines
11 KiB
Go
237 lines
11 KiB
Go
package activitystreams
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import (
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"errors"
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"time"
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)
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// Question represents a question being asked. Question objects are an extension of IntransitiveActivity.
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// That is, the Question object is an Activity, but the direct object is the question
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// itself and therefore it would not contain an object property.
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// Either of the anyOf and oneOf properties may be used to express possible answers,
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// but a Question object must not have both properties.
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type Question struct {
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// ID provides the globally unique identifier for anActivity Pub Object or Link.
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ID ObjectID `jsonld:"id,omitempty"`
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// Type identifies the Activity Pub Object or Link type. Multiple values may be specified.
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Type ActivityVocabularyType `jsonld:"type,omitempty"`
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// Name a simple, human-readable, plain-text name for the object.
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// HTML markup MUST NOT be included. The name MAY be expressed using multiple language-tagged values.
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Name NaturalLanguageValues `jsonld:"name,omitempty,collapsible"`
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// Attachment identifies a resource attached or related to an object that potentially requires special handling.
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// The intent is to provide a model that is at least semantically similar to attachments in email.
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Attachment Item `jsonld:"attachment,omitempty"`
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// AttributedTo identifies one or more entities to which this object is attributed. The attributed entities might not be Actors.
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// For instance, an object might be attributed to the completion of another activity.
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AttributedTo Item `jsonld:"attributedTo,omitempty"`
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// Audience identifies one or more entities that represent the total population of entities
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// for which the object can considered to be relevant.
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Audience ItemCollection `jsonld:"audience,omitempty"`
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// Content or textual representation of the Activity Pub Object encoded as a JSON string.
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// By default, the value of content is HTML.
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// The mediaType property can be used in the object to indicate a different content type.
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// (The content MAY be expressed using multiple language-tagged values.)
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Content NaturalLanguageValues `jsonld:"content,omitempty,collapsible"`
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// Context identifies the context within which the object exists or an activity was performed.
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// The notion of "context" used is intentionally vague.
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// The intended function is to serve as a means of grouping objects and activities that share a
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// common originating context or purpose. An example could be all activities relating to a common project or event.
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Context Item `jsonld:"context,omitempty"`
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// MediaType when used on an Object, identifies the MIME media type of the value of the content property.
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// If not specified, the content property is assumed to contain text/html content.
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MediaType MimeType `jsonld:"mediaType,omitempty"`
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// EndTime the date and time describing the actual or expected ending time of the object.
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// When used with an Activity object, for instance, the endTime property specifies the moment
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// the activity concluded or is expected to conclude.
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EndTime time.Time `jsonld:"endTime,omitempty"`
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// Generator identifies the entity (e.g. an application) that generated the object.
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Generator Item `jsonld:"generator,omitempty"`
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// Icon indicates an entity that describes an icon for this object.
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// The image should have an aspect ratio of one (horizontal) to one (vertical)
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// and should be suitable for presentation at a small size.
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Icon Item `jsonld:"icon,omitempty"`
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// Image indicates an entity that describes an image for this object.
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// Unlike the icon property, there are no aspect ratio or display size limitations assumed.
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Image Item `jsonld:"image,omitempty"`
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// InReplyTo indicates one or more entities for which this object is considered a response.
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InReplyTo Item `jsonld:"inReplyTo,omitempty"`
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// Location indicates one or more physical or logical locations associated with the object.
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Location Item `jsonld:"location,omitempty"`
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// Preview identifies an entity that provides a preview of this object.
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Preview Item `jsonld:"preview,omitempty"`
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// Published the date and time at which the object was published
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Published time.Time `jsonld:"published,omitempty"`
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// Replies identifies a Collection containing objects considered to be responses to this object.
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Replies Item `jsonld:"replies,omitempty"`
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// StartTime the date and time describing the actual or expected starting time of the object.
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// When used with an Activity object, for instance, the startTime property specifies
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// the moment the activity began or is scheduled to begin.
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StartTime time.Time `jsonld:"startTime,omitempty"`
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// Summary a natural language summarization of the object encoded as HTML.
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// *Multiple language tagged summaries may be provided.)
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Summary NaturalLanguageValues `jsonld:"summary,omitempty,collapsible"`
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// Tag one or more "tags" that have been associated with an objects. A tag can be any kind of Activity Pub Object.
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// The key difference between attachment and tag is that the former implies association by inclusion,
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// while the latter implies associated by reference.
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Tag ItemCollection `jsonld:"tag,omitempty"`
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// Updated the date and time at which the object was updated
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Updated time.Time `jsonld:"updated,omitempty"`
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// URL identifies one or more links to representations of the object
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URL LinkOrIRI `jsonld:"url,omitempty"`
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// To identifies an entity considered to be part of the public primary audience of an Activity Pub Object
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To ItemCollection `jsonld:"to,omitempty"`
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// Bto identifies anActivity Pub Object that is part of the private primary audience of this Activity Pub Object.
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Bto ItemCollection `jsonld:"bto,omitempty"`
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// CC identifies anActivity Pub Object that is part of the public secondary audience of this Activity Pub Object.
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CC ItemCollection `jsonld:"cc,omitempty"`
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// BCC identifies one or more Objects that are part of the private secondary audience of this Activity Pub Object.
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BCC ItemCollection `jsonld:"bcc,omitempty"`
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// Duration when the object describes a time-bound resource, such as an audio or video, a meeting, etc,
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// the duration property indicates the object's approximate duration.
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// The value must be expressed as an xsd:duration as defined by [ xmlschema11-2],
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// section 3.3.6 (e.g. a period of 5 seconds is represented as "PT5S").
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Duration time.Duration `jsonld:"duration,omitempty"`
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// Actor describes one or more entities that either performed or are expected to perform the activity.
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// Any single activity can have multiple actors. The actor may be specified using an indirect Link.
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Actor Actor `jsonld:"actor,omitempty"`
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// Target describes the indirect object, or target, of the activity.
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// The precise meaning of the target is largely dependent on the type of action being described
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// but will often be the object of the English preposition "to".
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// For instance, in the activity "John added a movie to his wishlist",
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// the target of the activity is John's wishlist. An activity can have more than one target.
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Target Item `jsonld:"target,omitempty"`
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// Result describes the result of the activity. For instance, if a particular action results in the creation
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// of a new resource, the result property can be used to describe that new resource.
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Result Item `jsonld:"result,omitempty"`
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// Origin describes an indirect object of the activity from which the activity is directed.
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// The precise meaning of the origin is the object of the English preposition "from".
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// For instance, in the activity "John moved an item to List B from List A", the origin of the activity is "List A".
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Origin Item `jsonld:"origin,omitempty"`
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// Instrument identifies one or more objects used (or to be used) in the completion of an Activity.
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Instrument Item `jsonld:"instrument,omitempty"`
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// OneOf identifies an exclusive option for a Question. Use of oneOf implies that the Question
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// can have only a single answer. To indicate that a Question can have multiple answers, use anyOf.
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OneOf Item `jsonld:"oneOf,omitempty"`
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// AnyOf identifies an inclusive option for a Question. Use of anyOf implies that the Question can have multiple answers.
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// To indicate that a Question can have only one answer, use oneOf.
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AnyOf Item `jsonld:"anyOf,omitempty"`
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// Closed indicates that a question has been closed, and answers are no longer accepted.
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Closed bool `jsonld:"closed,omitempty"`
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}
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// GetID returns the ObjectID corresponding to the Question object
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func (q Question) GetID() *ObjectID {
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return &q.ID
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}
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// GetLink returns the IRI corresponding to the Question object
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func (q Question) GetLink() IRI {
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return IRI(q.ID)
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}
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// GetType returns the ActivityVocabulary type of the current Activity
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func (q Question) GetType() ActivityVocabularyType {
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return q.Type
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}
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// IsObject returns true for Question objects
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func (q Question) IsObject() bool {
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return true
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}
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// IsLink returns false for Question objects
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func (q Question) IsLink() bool {
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return false
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}
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// IsCollection returns false for Question objects
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func (q Question) IsCollection() bool {
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return false
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}
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// UnmarshalJSON
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func (q *Question) UnmarshalJSON(data []byte) error {
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if ItemTyperFunc == nil {
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ItemTyperFunc = JSONGetItemByType
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}
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q.ID = JSONGetObjectID(data)
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q.Type = JSONGetType(data)
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q.Name = JSONGetNaturalLanguageField(data, "name")
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q.Content = JSONGetNaturalLanguageField(data, "content")
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q.Summary = JSONGetNaturalLanguageField(data, "summary")
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q.Context = JSONGetItem(data, "context")
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q.URL = JSONGetURIItem(data, "url")
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q.MediaType = MimeType(JSONGetString(data, "mediaType"))
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q.Generator = JSONGetItem(data, "generator")
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q.AttributedTo = JSONGetItem(data, "attributedTo")
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q.Attachment = JSONGetItem(data, "attachment")
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q.Location = JSONGetItem(data, "location")
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q.Published = JSONGetTime(data, "published")
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q.StartTime = JSONGetTime(data, "startTime")
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q.EndTime = JSONGetTime(data, "endTime")
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q.Duration = JSONGetDuration(data, "duration")
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q.Icon = JSONGetItem(data, "icon")
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q.Preview = JSONGetItem(data, "preview")
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q.Image = JSONGetItem(data, "image")
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q.Updated = JSONGetTime(data, "updated")
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inReplyTo := JSONGetItems(data, "inReplyTo")
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if len(inReplyTo) > 0 {
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q.InReplyTo = inReplyTo
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}
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to := JSONGetItems(data, "to")
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if len(to) > 0 {
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q.To = to
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}
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audience := JSONGetItems(data, "audience")
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if len(audience) > 0 {
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q.Audience = audience
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}
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bto := JSONGetItems(data, "bto")
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if len(bto) > 0 {
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q.Bto = bto
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}
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cc := JSONGetItems(data, "cc")
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if len(cc) > 0 {
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q.CC = cc
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}
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bcc := JSONGetItems(data, "bcc")
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if len(bcc) > 0 {
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q.BCC = bcc
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}
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replies := JSONGetItem(data, "replies")
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if replies != nil {
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q.Replies = replies
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}
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tag := JSONGetItems(data, "tag")
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if len(tag) > 0 {
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q.Tag = tag
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}
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q.Actor = JSONGetItem(data, "actor")
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q.Target = JSONGetItem(data, "target")
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q.Origin = JSONGetItem(data, "origin")
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q.Result = JSONGetItem(data, "result")
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q.Instrument = JSONGetItem(data, "instrument")
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q.OneOf = JSONGetItem(data, "oneOf")
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q.AnyOf = JSONGetItem(data, "anyOf")
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q.Closed = JSONGetBoolean(data, "closed")
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return nil
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}
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// QuestionNew initializes a Question activity
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func QuestionNew(id ObjectID) *Question {
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q := Question{ID: id, Type: QuestionType}
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q.Name = NaturalLanguageValuesNew()
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q.Content = NaturalLanguageValuesNew()
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return &q
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}
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// ToQuestion
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func ToQuestion(it Item) (*Question, error) {
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switch i := it.(type) {
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case *Question:
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return i, nil
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case Question:
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return &i, nil
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}
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return nil, errors.New("unable to convert to question activity")
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}
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