Package org.duracloud.s3task.streaminghls

Class BaseHlsTaskRunner

java.lang.Object

org.duracloud.s3task.streaminghls.BaseHlsTaskRunner

All Implemented Interfaces:

TaskRunner

Direct Known Subclasses:

DeleteHlsTaskRunner, DisableHlsTaskRunner, EnableHlsTaskRunner, GetHlsSignedCookiesUrlTaskRunner, GetUrlHlsTaskRunner

public abstract class BaseHlsTaskRunner
extends Object
implements TaskRunner

Provides shared capabilities to support HLS streaming

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	BaseHlsTaskRunner.STREAMING_TYPE

Field Summary

Fields

Modifier and Type	Field	Description
protected String	cfAccountId
protected com.amazonaws.services.cloudfront.AmazonCloudFrontClient	cfClient
protected String	cfKeyId
protected String	cfKeyPath
protected String	dcHost
static final String	HLS_STREAMING_HOST_PROP
static final String	HLS_STREAMING_TYPE_PROP
protected static final int	maxRetries
static final String	S3_ORIGIN_OAI_PREFIX
static final String	S3_ORIGIN_SUFFIX
protected com.amazonaws.services.s3.AmazonS3	s3Client
protected StorageProvider	s3Provider
protected S3StorageProvider	unwrappedS3Provider

Constructor Summary

Constructors

Constructor	Description
BaseHlsTaskRunner()

Method Summary

Modifier and Type	Method	Description
protected void	checkThatStreamingServiceIsEnabled(String spaceId, String taskName)	Determines if a streaming distribution exists for a given space
protected List<com.amazonaws.services.cloudfront.model.DistributionSummary>	getAllExistingWebDistributions(String bucketName)	Determines if a streaming distribution already exists for a given bucket
protected com.amazonaws.services.cloudfront.model.DistributionSummary	getExistingDistribution(String bucketName)	Returns the first streaming web distribution associated with a given bucket
abstract String	getName()
protected Iterator<String>	getSpaceContents(String spaceId)	Get a listing of items in a space
abstract String	performTask(String taskParameters)
protected void	removeHlsStreamingHostFromSpaceProps(String spaceId)	Updates the space properties to no longer include the streaming host value (if the value existed there in the first place)
protected void	setDistributionState(String distId, boolean enabled)	Enables or disables an existing distribution
protected void	wait(int index)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

HLS_STREAMING_HOST_PROP

public static final String HLS_STREAMING_HOST_PROP

See Also:

• Constant Field Values

HLS_STREAMING_TYPE_PROP

public static final String HLS_STREAMING_TYPE_PROP

See Also:

• Constant Field Values

S3_ORIGIN_SUFFIX

public static final String S3_ORIGIN_SUFFIX

See Also:

• Constant Field Values

S3_ORIGIN_OAI_PREFIX

public static final String S3_ORIGIN_OAI_PREFIX

See Also:

• Constant Field Values

maxRetries

protected static final int maxRetries

See Also:

• Constant Field Values

s3Provider

protected StorageProvider s3Provider

unwrappedS3Provider

protected S3StorageProvider unwrappedS3Provider

s3Client

protected com.amazonaws.services.s3.AmazonS3 s3Client

cfClient

protected com.amazonaws.services.cloudfront.AmazonCloudFrontClient cfClient

cfAccountId

protected String cfAccountId

cfKeyId

protected String cfKeyId

cfKeyPath

protected String cfKeyPath

dcHost

protected String dcHost

Constructor Details

BaseHlsTaskRunner

public BaseHlsTaskRunner()

Method Details

getName

public abstract String getName()

Specified by:

getName in interface TaskRunner

performTask

public abstract String performTask(String taskParameters)

Specified by:

performTask in interface TaskRunner

getExistingDistribution

protected com.amazonaws.services.cloudfront.model.DistributionSummary getExistingDistribution(String bucketName)

Returns the first streaming web distribution associated with a given bucket

getAllExistingWebDistributions

protected List<com.amazonaws.services.cloudfront.model.DistributionSummary> getAllExistingWebDistributions(String bucketName)

Determines if a streaming distribution already exists for a given bucket

setDistributionState

protected void setDistributionState(String distId,
 boolean enabled)

Enables or disables an existing distribution

Parameters:

distId - the ID of the distribution

enabled - true to enable, false to disable

getSpaceContents

protected Iterator<String> getSpaceContents(String spaceId)

Get a listing of items in a space

removeHlsStreamingHostFromSpaceProps

protected void removeHlsStreamingHostFromSpaceProps(String spaceId)

Updates the space properties to no longer include the streaming host value (if the value existed there in the first place)

wait

protected void wait(int index)

checkThatStreamingServiceIsEnabled

protected void checkThatStreamingServiceIsEnabled(String spaceId,
 String taskName)

Determines if a streaming distribution exists for a given space

Throws:

UnsupportedTaskException - if no distribution exists