Package org.alfresco.solr.tracker

Class ACLIDModRouter

java.lang.Object

org.alfresco.solr.tracker.ACLIDModRouter

All Implemented Interfaces:

DocRouter

public class ACLIDModRouter
extends Object
implements DocRouter

Nodes and access control lists are grouped by their ACL ID. This places the nodes together with all the access control information required to determine the access to a node in the same shard. Both the nodes and access control information are sharded. The overall index size will be smaller than other methods as the ACL index information is not duplicated in every shard. Also, the ACL count is usually much smaller than the node count. This method is beneficial if you have lots of ACLs and the documents are evenly distributed over those ACLs. For example, if you have many Share sites, nodes and ACLs are assigned to shards randomly based on the ACL and the documents to which it applies. The node distribution may be uneven as it depends how many nodes share ACLs. To use this method, when creating a shard add a new configuration property:

• shard.method=MOD_ACL_ID
• shard.instance=<shard.instance>
• shard.count=<shard.count>

See Also:

• Search Services sharding methods

Constructor Summary

Constructors

Constructor	Description
ACLIDModRouter()

Method Summary

Modifier and Type	Method	Description
Boolean	routeAcl(int shardCount, int shardInstance, org.alfresco.solr.client.Acl acl)	Checks if the incoming ACL document must be indexed on this shard.
Boolean	routeNode(int shardCount, int shardInstance, org.alfresco.solr.client.Node node)	Checks if the incoming Node must be indexed on this shard.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.alfresco.solr.tracker.DocRouter

getProperties

Constructor Details

ACLIDModRouter

public ACLIDModRouter()

Method Details

routeAcl

public Boolean routeAcl(int shardCount,
 int shardInstance,
 org.alfresco.solr.client.Acl acl)

Description copied from interface: DocRouter

Checks if the incoming ACL document must be indexed on this shard.

Specified by:

routeAcl in interface DocRouter

Parameters:

shardCount - the total shard count.

shardInstance - the owning shard instance (i.e. instance number).

acl - the ACL.

Returns:

true if the ACL must be indexed in the shard which owns this DocRouter instance, false otherwise.

routeNode

public Boolean routeNode(int shardCount,
 int shardInstance,
 org.alfresco.solr.client.Node node)

Description copied from interface: DocRouter

Checks if the incoming Node must be indexed on this shard.

Specified by:

routeNode in interface DocRouter

Parameters:

shardCount - the total shard count.

shardInstance - the owning shard instance (i.e. instance number).

node - the Node instance.

Returns:

true if the Node instance must be indexed in the shard which owns this DocRouter instance, false otherwise.