Documentation

Service extends RepoResource
in package

Application

implements ServiceInterface Uses ServiceTrait

Represents a dissemination service.

Interfaces

ServiceInterface

Constants

UPDATE_ADD = 'add'
UPDATE_MERGE = 'merge'
UPDATE_OVERWRITE = 'overwrite'

Properties

$loadParamFromMeta : bool
$metadata : DatasetNodeInterface
$metaSynced : bool
$param : array<string|int, mixed>: Parameters list
$repo : Repo
$repoInt : RepoInterface

Methods

__construct() : mixed: Creates an object representing a repository resource.
delete() : array<string|int, string>: Deletes the repository resource.
deleteAsync() : PromiseInterface: Asynchronous version of delete()
factory() : RepoResource: Creates a repository resource object from the PSR-7 response object returning the metadata.
getClasses() : array<string|int, string>: Returns all RDF types (classes) of a given repository resource.
getContent() : ResponseInterface: Returns repository resource binary content.
getContentAsync() : ResponsePromise: synchronous version of getContent()
getDissServices() : array<string, Service>: Returns list of dissemination services available for a resource.
getFormats() : array<string|int, Format>: Returns all return formats provided by the dissemination service.
getGraph() : DatasetNodeInterface: Returns resource metadata.
getIds() : array<string|int, string>: Returns an array with all repository resource identifiers.
getLocation() : string: Gets disseminations service's URL (before parameters subsitution)
getMatchingResources() : Generator: Returns repository resources which can be disseminated by a given service
getMatchQuery() : QueryPart: Returns an SQL query matching dissemination services and resources (in any direction).
getMetadata() : DatasetNodeInterface: Returns resource metadata.
getParameters() : array<string|int, mixed>: Get the parameters
getRepo() : RepoInterface: Returns repository connection object associated with the given resource object.
getRequest() : Request: Returns PSR-7 HTTP request disseminating a given resource.
getRevProxy() : bool: Should the dissemination service request be reverse-proxied?
getUri() : TermInterface: Returns the repository resource URL.
hasBinaryContent() : bool: Checks if the resource has the binary content.
isA() : bool: Naivly checks if the resource is of a given class.
loadMetadata() : mixed
loadMetadataAsync() : PromiseInterface|null: Asynchronous version of loadMetadata()
loadParametersFromMetadata() : void: Tells the service it can load information on service parameters from its metadata.
merge() : void: Merges the current resource with the given one. See the corresponding [REST endpoint description](https://app.swaggerhub.com/apis/zozlak/arche/3.0#/default/put_merge__srcResourceId___targetResourceId_)
mergeAsync() : PromiseInterface: Asynchronous version of merge()
setGraph() : void: Replaces resource metadata with a given RDF graph. A reference to the provided metadata is stored meaning future modifications of the $metadata object automatically affect the resource metadata.
setMetadata() : void: Replaces resource metadata with a given RDF resource graph. A deep copy of the provided metadata is stored meaning future modifications of the $metadata object don't affect the resource metadata.
updateContent() : void: Updates repository resource binary content with a given payload.
updateContentAsync() : PromiseInterface: Asynchronous version of updateContent()
updateMetadata() : void: Saves the object metadata to the repository.
updateMetadataAsync() : PromiseInterface|null: Asynchronous version of updateMetadata()
getId() : int: Returns an internal repository resource identifier.
getParameterClass() : string
getParameterValues() : array<string, mixed>: Evaluates parameter values for a given resource.
getResNmspId() : string: Fetches a resource id in a given namespace.
getServiceClass() : string
getUrlParameters() : array<string|int, string>: Returns list of all parameters of a given dissemination service
loadParameters() : void
parseMetadata() : void: Parses metadata fetched from the repository.
withReadHeaders() : Request

UPDATE_ADD


    public
        mixed
    UPDATE_ADD
    = 'add'

UPDATE_MERGE


    public
        mixed
    UPDATE_MERGE
    = 'merge'

UPDATE_OVERWRITE


    public
        mixed
    UPDATE_OVERWRITE
    = 'overwrite'

$loadParamFromMeta


    private
        bool
    $loadParamFromMeta
     = false

$metadata


    private
        DatasetNodeInterface
    $metadata

$metaSynced


    private
        bool
    $metaSynced

$param

Parameters list


    private
        array<string|int, mixed>
    $param

$repo


    private
        Repo
    $repo

$repoInt


    private
        RepoInterface
    $repoInt

__construct()

Creates an object representing a repository resource.


    public
                    __construct(string $url, RepoInterface $repo) : mixed

Parameters

$url : string: URL of the resource
$repo : RepoInterface: repository connection object

delete()

Deletes the repository resource.


    public
                    delete([bool $tombstone = false ][, bool $references = false ][, string $recursiveProperty = '' ]) : array<string|int, string>

Returns an array of deleted resources' URIs.

Parameters

$tombstone : bool = false: should tombstones be removed for deleted resources?
$references : bool = false: should references to deleted resources be removed from other resources?
$recursiveProperty : string = '': is present, deletion continues recursively to all resources pointing to the deleted one with this RDF property

Return values

array<string|int, string>

deleteAsync()

Asynchronous version of delete()


    public
                    deleteAsync([bool $tombstone = false ][, bool $references = false ][, string $recursiveProperty = '' ]) : PromiseInterface

Parameters

$tombstone : bool = false
$references : bool = false
$recursiveProperty : string = ''

Return values

PromiseInterface

factory()

Creates a repository resource object from the PSR-7 response object returning the metadata.


    public
            static        factory(Repo $repo, ResponseInterface $response[, string|null $uri = null ]) : RepoResource

Parameters

$repo : Repo: connection object
$response : ResponseInterface: PSR-7 repository response object
$uri : string|null = null: resource URI (if not provided, a Location HTTP header from the response will be used)

Return values

RepoResource

getClasses()

Returns all RDF types (classes) of a given repository resource.


    public
                    getClasses() : array<string|int, string>

Return values

array<string|int, string>

getContent()

Returns repository resource binary content.


    public
                    getContent() : ResponseInterface

Return values

ResponseInterface —

PSR-7 response containing resource's binary content

getContentAsync()

synchronous version of getContent()


    public
                    getContentAsync() : ResponsePromise

Return values

ResponsePromise

getDissServices()

Returns list of dissemination services available for a resource.


    public
                    getDissServices() : array<string, Service>

Return values

array<string, Service>

getFormats()

Returns all return formats provided by the dissemination service.


    public
                    getFormats() : array<string|int, Format>

Technically return formats are nothing more then strings. There is no requirement forcing them to be mime types, etc.

Return values

array<string|int, Format>

getGraph()

Returns resource metadata.


    public
                    getGraph() : DatasetNodeInterface

Fetches them from the repository with the loadMetadata() if they were not fetched already.

A reference to the metadata is returned meaning adjusting the returned object automatically affects the resource metadata.

Return values

DatasetNodeInterface

getIds()

Returns an array with all repository resource identifiers.


    public
                    getIds() : array<string|int, string>

Return values

array<string|int, string>

getLocation()

Gets disseminations service's URL (before parameters subsitution)


    public
                    getLocation() : string

Return values

string

getMatchingResources()

Returns repository resources which can be disseminated by a given service


    public
                    getMatchingResources([int $limit = null ][, int $offset = null ]) : Generator

Parameters

$limit : int = null
$offset : int = null

Return values

Generator

getMatchQuery()

Returns an SQL query matching dissemination services and resources (in any direction).


    public
            static        getMatchQuery(int $id, int $mode, Schema $schema) : QueryPart

Parameters

$id : int

resource or dissemination service id

$mode : int

one of:

ServiceInterface::QUERY_RES for querying resources for a given dissemination service
ServiceInterface::QUERY_DISSERV for querying dissemination services for a given resource

$schema : Schema

schema object providing RDF property mappings

Return values

QueryPart

getMetadata()

Returns resource metadata.


    public
                    getMetadata() : DatasetNodeInterface

Fetches them from the repository with the loadMetadata() if they were not fetched already.

A deep copy of metadata is returned meaning adjusting the returned object does not automatically affect the resource metadata. Use the setMetadata() method to write back the changes you made.

Return values

DatasetNodeInterface

getParameters()

Get the parameters


    public
                    getParameters() : array<string|int, mixed>

Return values

array<string|int, mixed>

getRepo()

Returns repository connection object associated with the given resource object.


    public
                    getRepo() : RepoInterface

Return values

RepoInterface

getRequest()

Returns PSR-7 HTTP request disseminating a given resource.


    public
                    getRequest(RepoResourceInterface $res) : Request

Parameters

$res : RepoResourceInterface: repository resource to be disseminated

Return values

Request

getRevProxy()

Should the dissemination service request be reverse-proxied?


    public
                    getRevProxy() : bool

If it's not set in the metadata, false is assumed.

Return values

bool

getUri()

Returns the repository resource URL.


    public
                    getUri() : TermInterface

Return values

TermInterface

hasBinaryContent()

Checks if the resource has the binary content.


    public
                    hasBinaryContent() : bool

Return values

bool

isA()

Naivly checks if the resource is of a given class.


    public
                    isA(string $class) : bool

Naivly means that a given rdfs:type triple must exist in the resource metadata.

Parameters

$class : string

Return values

bool

loadMetadata()


    public
    abstract                loadMetadata() : mixed

loadMetadataAsync()

Asynchronous version of loadMetadata()


    public
                    loadMetadataAsync([bool $force = false ][, string $mode = self::META_RESOURCE ][, string|null $parentProperty = null ][, array<string|int, string> $resourceProperties = [] ][, array<string|int, string> $relativesProperties = [] ]) : PromiseInterface|null

Parameters

$force : bool = false
$mode : string = self::META_RESOURCE
$parentProperty : string|null = null
$resourceProperties : array<string|int, string> = []
$relativesProperties : array<string|int, string> = []

Return values

PromiseInterface|null

loadParametersFromMetadata()

Tells the service it can load information on service parameters from its metadata.


    public
                    loadParametersFromMetadata() : void

Information will be loaded in a lazy way (when it's needed).

merge()

Merges the current resource with the given one. See the corresponding [REST endpoint description](https://app.swaggerhub.com/apis/zozlak/arche/3.0#/default/put_merge__srcResourceId___targetResourceId_)


    public
                    merge(string $targetResId[, string $readMode = self::META_RESOURCE ][, string $parentProperty = null ][, array<string|int, string> $resourceProperties = [] ][, array<string|int, string> $relativesProperties = [] ]) : void

If this action succeeds, resource's URI changes to the targetResource's one.

Parameters

$targetResId : string

$readMode : string = self::META_RESOURCE

scope of the metadata returned by the repository

see the META_* constants defined by the RepoResourceInterface

$parentProperty : string = null

RDF property to be used by the metadata read mode denoted by the $readMode parameter

$resourceProperties : array<string|int, string> = []

list of RDF properties to be includes for a resource (if the list is empty, all exsiting RDF properties are included)

$relativesProperties : array<string|int, string> = []

list of RDF properties to be includes for resources being relatives (if the list is empty, all exsiting RDF properties are included)

mergeAsync()

Asynchronous version of merge()


    public
                    mergeAsync(string $targetResId[, string $readMode = self::META_RESOURCE ][, string|null $parentProperty = null ][, array<string|int, string> $resourceProperties = [] ][, array<string|int, string> $relativesProperties = [] ]) : PromiseInterface

Parameters

$targetResId : string
$readMode : string = self::META_RESOURCE
$parentProperty : string|null = null
$resourceProperties : array<string|int, string> = []
$relativesProperties : array<string|int, string> = []

Return values

PromiseInterface

setGraph()

Replaces resource metadata with a given RDF graph. A reference to the provided metadata is stored meaning future modifications of the $metadata object automatically affect the resource metadata.


    public
                    setGraph(DatasetInterface $metadata) : void

New metadata are not automatically written back to the repository. Use the updateMetadata() method to write them back.

Parameters

$metadata : DatasetInterface

setMetadata()

Replaces resource metadata with a given RDF resource graph. A deep copy of the provided metadata is stored meaning future modifications of the $metadata object don't affect the resource metadata.


    public
                    setMetadata(DatasetNodeInterface $metadata) : void

New metadata is not automatically written back to the repository. Use the updateMetadata() method to write them back.

Parameters

$metadata : DatasetNodeInterface

updateContent()

Updates repository resource binary content with a given payload.


    public
                    updateContent(BinaryPayload $content[, string $readMode = self::META_RESOURCE ][, string $parentProperty = null ][, array<string|int, string> $resourceProperties = [] ][, array<string|int, string> $relativesProperties = [] ]) : void

Parameters

$content : BinaryPayload

new content

$readMode : string = self::META_RESOURCE

scope of the metadata returned by the repository

see the META_* constants defined by the RepoResourceInterface

$parentProperty : string = null

RDF property to be used by the metadata read mode denoted by the $readMode parameter

$resourceProperties : array<string|int, string> = []

list of RDF properties to be includes for a resource (if the list is empty, all exsiting RDF properties are included)

$relativesProperties : array<string|int, string> = []

list of RDF properties to be includes for resources being relatives (if the list is empty, all exsiting RDF properties are included)

updateContentAsync()

Asynchronous version of updateContent()


    public
                    updateContentAsync(BinaryPayload $content[, string $readMode = self::META_RESOURCE ][, string|null $parentProperty = null ][, array<string|int, string> $resourceProperties = [] ][, array<string|int, string> $relativesProperties = [] ]) : PromiseInterface

Parameters

$content : BinaryPayload
$readMode : string = self::META_RESOURCE
$parentProperty : string|null = null
$resourceProperties : array<string|int, string> = []
$relativesProperties : array<string|int, string> = []

Return values

PromiseInterface

updateMetadata()

Saves the object metadata to the repository.


    public
                    updateMetadata([string $updateMode = self::UPDATE_MERGE ][, string $readMode = self::META_RESOURCE ][, string $parentProperty = null ][, array<string|int, string> $resourceProperties = [] ][, array<string|int, string> $relativesProperties = [] ]) : void

Local metadata are automatically updated with the metadata resulting from the update.

Parameters

$updateMode : string = self::UPDATE_MERGE

metadata update mode - one of RepoResource::UPDATE_MERGE, RepoResource::UPDATE_ADD and RepoResource::UPDATE_OVERWRITE

$readMode : string = self::META_RESOURCE

scope of the metadata returned by the repository

see the META_* constants defined by the RepoResourceInterface

$parentProperty : string = null

RDF property to be used by the metadata read mode denoted by the $readMode parameter

$resourceProperties : array<string|int, string> = []

list of RDF properties to be includes for a resource (if the list is empty, all exsiting RDF properties are included)

$relativesProperties : array<string|int, string> = []

list of RDF properties to be includes for resources being relatives (if the list is empty, all exsiting RDF properties are included)

updateMetadataAsync()

Asynchronous version of updateMetadata()


    public
                    updateMetadataAsync([string $updateMode = self::UPDATE_MERGE ][, string $readMode = self::META_RESOURCE ][, string|null $parentProperty = null ][, array<string|int, string> $resourceProperties = [] ][, array<string|int, string> $relativesProperties = [] ]) : PromiseInterface|null

Parameters

$updateMode : string = self::UPDATE_MERGE
$readMode : string = self::META_RESOURCE
$parentProperty : string|null = null
$resourceProperties : array<string|int, string> = []
$relativesProperties : array<string|int, string> = []

Return values

PromiseInterface|null

getId()

Returns an internal repository resource identifier.


    protected
                    getId() : int

Return values

int

getParameterClass()


    private
                    getParameterClass() : string

Return values

string

getParameterValues()

Evaluates parameter values for a given resource.


    private
                    getParameterValues(array<string|int, string> $param, RepoResourceInterface $res) : array<string, mixed>

Parameters

$param : array<string|int, string>: list of parameters
$res : RepoResourceInterface: repository resource to be disseminated

Return values

array<string, mixed> —

associative array with parameter values

getResNmspId()

Fetches a resource id in a given namespace.


    private
                    getResNmspId(RepoResourceInterface $res, string $namespace, bool $force) : string

If namespaces overlap, tries to to avoid id in the overlapping ones.

Parameters

$res : RepoResourceInterface
$namespace : string
$force : bool

Return values

string

getServiceClass()


    private
    abstract                getServiceClass() : string

Return values

string

getUrlParameters()

Returns list of all parameters of a given dissemination service


    private
                    getUrlParameters() : array<string|int, string>

Return values

array<string|int, string>

loadParameters()


    private
                    loadParameters() : void

parseMetadata()

Parses metadata fetched from the repository.


    private
                    parseMetadata(ResponseInterface $resp) : void

Parameters

$resp : ResponseInterface: response to the metadata fetch HTTP request.

withReadHeaders()


    private
                    withReadHeaders(Request $request, string $mode, string|null $parentProperty, array<string|int, string> $resourceProperties, array<string|int, string> $relativesProperties) : Request

Parameters

$request : Request
$mode : string
$parentProperty : string|null
$resourceProperties : array<string|int, string>
$relativesProperties : array<string|int, string>

Return values

Request

Service extends RepoResource in package Application implements ServiceInterface Uses ServiceTrait

Tags

Table of Contents

Interfaces

Constants

Properties

Methods

Constants

UPDATE_ADD

UPDATE_MERGE

UPDATE_OVERWRITE

Properties

$loadParamFromMeta

$metadata

$metaSynced

$param

$repo

$repoInt

Methods

__construct()

Parameters

delete()

Parameters

Return values

deleteAsync()

Parameters

Tags

Return values

factory()

Parameters

Return values

getClasses()

Return values

getContent()

Return values

getContentAsync()

Tags

Return values

getDissServices()

Return values

getFormats()

Return values

getGraph()

Tags

Return values

getIds()

Return values

getLocation()

Return values

getMatchingResources()

Parameters

Return values

getMatchQuery()

Parameters

Return values

getMetadata()

Tags

Return values

getParameters()

Return values

getRepo()

Return values

getRequest()

Parameters

Tags

Return values

getRevProxy()

Return values

getUri()

Return values

hasBinaryContent()

Return values

isA()

Parameters

Return values

loadMetadata()

loadMetadataAsync()

Parameters

Tags

Return values

Service extends RepoResource
in package

Application

implements ServiceInterface Uses ServiceTrait