Package com.github.ambry.cloud.azure

Class CosmosDataAccessor

java.lang.Object

com.github.ambry.cloud.azure.CosmosDataAccessor

public class CosmosDataAccessor
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	COSMOS_LAST_UPDATED_COLUMN

Method Summary

Modifier and Type	Method	Description
long	deprecateContainers(java.util.Set<CosmosContainerDeletionEntry> deprecatedContainers)	Add the CosmosContainerDeletionEntry for newly deprecated Containers to cosmos table.
java.util.Set<CosmosContainerDeletionEntry>	getDeprecatedContainers(int maxEntries)	Fetch a Set of CosmosContainerDeletionEntry objects from cosmos db that are not marked as deleted.
java.lang.String	queryChangeFeed(java.lang.String requestContinuationToken, int maxFeedSize, java.util.List<CloudBlobMetadata> changeFeed, java.lang.String partitionPath, com.codahale.metrics.Timer timer)	Query Cosmos change feed to get the next set of CloudBlobMetadata objects in specified partitionPath after requestContinationToken, capped by specified maxFeedSize representing the max number of items to be queried from the change feed.

Methods inherited from class java.lang.Object

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

Field Detail

COSMOS_LAST_UPDATED_COLUMN

public static final java.lang.String COSMOS_LAST_UPDATED_COLUMN

See Also:

Constant Field Values

Method Detail

queryChangeFeed

public java.lang.String queryChangeFeed(java.lang.String requestContinuationToken,
                                        int maxFeedSize,
                                        java.util.List<CloudBlobMetadata> changeFeed,
                                        java.lang.String partitionPath,
                                        com.codahale.metrics.Timer timer)
                                 throws com.microsoft.azure.cosmosdb.DocumentClientException

Query Cosmos change feed to get the next set of CloudBlobMetadata objects in specified partitionPath after requestContinationToken, capped by specified maxFeedSize representing the max number of items to be queried from the change feed.

Parameters:

requestContinuationToken - Continuation token after which change feed is requested.

maxFeedSize - max item count to be requested in the feed query.

changeFeed - CloudBlobMetadata List to be populated with the next set of entries returned by change feed query.

partitionPath - partition for which the change feed is requested.

timer - the Timer to use to record query time (excluding waiting).

Returns:

next continuation token.

Throws:

com.microsoft.azure.cosmosdb.DocumentClientException

deprecateContainers

public long deprecateContainers(java.util.Set<CosmosContainerDeletionEntry> deprecatedContainers)
                         throws com.microsoft.azure.cosmosdb.DocumentClientException

Add the CosmosContainerDeletionEntry for newly deprecated Containers to cosmos table.

Parameters:

deprecatedContainers - Set of deleted CosmosContainerDeletionEntrys.

Returns:

the max deletion trigger time of all the added containers to serve as checkpoint for future update.

Throws:

com.microsoft.azure.cosmosdb.DocumentClientException

getDeprecatedContainers

public java.util.Set<CosmosContainerDeletionEntry> getDeprecatedContainers(int maxEntries)
                                                                    throws com.microsoft.azure.cosmosdb.DocumentClientException

Fetch a Set of CosmosContainerDeletionEntry objects from cosmos db that are not marked as deleted.

Parameters:

maxEntries - Max number of entries to fetch on one query.

Returns:

Set of CosmosContainerDeletionEntry objects.

Throws:

com.microsoft.azure.cosmosdb.DocumentClientException - in case of any error.