org.apache.servicecomb.core.registry.discovery

Class OperationInstancesDiscoveryFilter

java.lang.Object

org.apache.servicecomb.registry.discovery.AbstractDiscoveryFilter

org.apache.servicecomb.core.registry.discovery.OperationInstancesDiscoveryFilter

All Implemented Interfaces:

DiscoveryFilter

public class OperationInstancesDiscoveryFilter
extends AbstractDiscoveryFilter

   create operation related instances

   Preconditions:
     compatible is ensure by appManager.getOrCreateMicroserviceVersionRule
     instances in "DiscoveryTreeNode parent" are compatible:
       new version can only add operations, not delete operations

   eg:
     microservice name is ms1
     2 instances are 1.0.0, instance id are i1/i2, schemaId is s1, operations are o1/o2
     3 instances are 1.0.1, instance id are i3/i4/i5, schemaId is s1, operations are o1/o2/o3

     will create nodes:
     {
       "ms1.s1.o1": {
         {"i1": instance-i1}, {"i2": instance-i2}, {"i3": instance-i3}, {"i4": instance-i4}, {"i5": instance-i5}
       },
       "ms1.s1.o2": {
         {"i1": instance-i1}, {"i2": instance-i2}, {"i3": instance-i3}, {"i4": instance-i4}, {"i5": instance-i5}
       },
       "ms1.s1.o3": {
         {"i3": instance-i3}, {"i4": instance-i4}, {"i5": instance-i5}
       },
     }

     that means, if invoke o1 or o2, can use 5 instances, but if invoke o3, can only use 3 instances
     by this filter, we can make sure that new operations will not route to old instances
 

Constructor Summary

Constructors

Constructor and Description
OperationInstancesDiscoveryFilter()

Method Summary

Modifier and Type	Method and Description
boolean	enabled()
protected String	findChildName(DiscoveryContext context, DiscoveryTreeNode parent)
int	getOrder()
void	init(DiscoveryContext context, DiscoveryTreeNode parent)
boolean	isGroupingFilter()
protected List<MicroserviceVersion>	sortedMicroserviceVersion(Invocation invocation, Map<String,MicroserviceInstance> instances)

Methods inherited from class org.apache.servicecomb.registry.discovery.AbstractDiscoveryFilter

discovery

Methods inherited from class java.lang.Object

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

Constructor Detail

OperationInstancesDiscoveryFilter

public OperationInstancesDiscoveryFilter()

Method Detail

getOrder

public int getOrder()

enabled

public boolean enabled()

isGroupingFilter

public boolean isGroupingFilter()

findChildName

protected String findChildName(DiscoveryContext context,
                               DiscoveryTreeNode parent)

Specified by:

findChildName in class AbstractDiscoveryFilter

init

public void init(DiscoveryContext context,
                 DiscoveryTreeNode parent)

Specified by:

init in class AbstractDiscoveryFilter

sortedMicroserviceVersion

protected List<MicroserviceVersion> sortedMicroserviceVersion(Invocation invocation,
                                                              Map<String,MicroserviceInstance> instances)