Class: shaka.util.FailoverUri

Constructor

new FailoverUri(callback, urls, opt_startByteopt, opt_endByteopt, nullable)

Creates a FailoverUri, which handles requests to multiple URLs in case of failure.
Parameters:
Name Type Attributes Description
callback shaka.util.FailoverUri.NetworkCallback
urls Array.<!goog.Uri>
opt_startByte number <optional>
 The start byte of the data, defaults to 0.
opt_endByte number <optional>
<nullable>
 The end byte of the data, null means the end; defaults to null.
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Members

(private) callback_ :shaka.util.FailoverUri.NetworkCallback

Type:
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currentUrl :goog.Uri

Type:
  • goog.Uri
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(constant, nullable) endByte :number

Type:
  • number
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(private) request_ :shaka.util.AjaxRequest

Type:
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(private, nullable) requestPromise_ :Promise

Type:
  • Promise
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(constant) startByte :number

Type:
  • number
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(constant, non-null) urls :Array.<!goog.Uri>

Type:
  • Array.<!goog.Uri>
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Methods

(static) resolve(baseUrl, urlnon-null) → (non-null) {Array.<!goog.Uri>}

Resolves a relative url to the given |baseUrl|.
Parameters:
Name Type Description
baseUrl Array.<!goog.Uri>
url goog.Uri
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Returns:
Type
Array.<!goog.Uri>

abortFetch()

Aborts fetch() if it is pending.
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clone() → (non-null) {shaka.util.FailoverUri}

Creates a deep-copy of the object.
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Returns:
Type
shaka.util.FailoverUri

(private) createRequest_(i, parametersnon-null, opt_estimatoropt) → (non-null) {Promise.<(!ArrayBuffer|string)>}

Creates a request using the given url. This will add the catch block and will recursively call itself to handle failover.
Parameters:
Name Type Attributes Description
i number
parameters shaka.util.AjaxRequest.Parameters
opt_estimator shaka.util.IBandwidthEstimator <optional>
Source:
Returns:
Type
Promise.<(!ArrayBuffer|string)>

fetch(opt_parametersopt, opt_estimatoropt) → (non-null) {Promise.<(!ArrayBuffer|string)>}

Gets the data specified by the URLs.
Parameters:
Name Type Attributes Description
opt_parameters shaka.util.AjaxRequest.Parameters <optional>
opt_estimator shaka.util.IBandwidthEstimator <optional>
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Returns:
Type
Promise.<(!ArrayBuffer|string)>

isOfflineUri() → {boolean}

Gets whether the URI is offline (uses the scheme idb).
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Returns:
Type
boolean

toString() → (non-null) {string}

Gets the first url.
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Returns:
Type
string

Type Definitions

NetworkCallback

A callback to the application called prior to media network events. The first parameter is the URL for the request. The second parameter is the headers for the request. These can be modified. The callback should return a modified URL for the request, or null to use the original.
Type:
  • ?function(string, !Object.<string, string>): (?string)
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