org.apache.tez.dag.app.rm.container

Class ContainerContextMatcher

java.lang.Object

org.apache.tez.dag.app.rm.container.ContainerContextMatcher

All Implemented Interfaces:

ContainerSignatureMatcher

public class ContainerContextMatcher
extends Object
implements ContainerSignatureMatcher

Constructor Summary

Constructors

Constructor and Description
ContainerContextMatcher()

Method Summary

Methods

Modifier and Type	Method and Description
Map<String,org.apache.hadoop.yarn.api.records.LocalResource>	getAdditionalResources(Map<String,org.apache.hadoop.yarn.api.records.LocalResource> lr1, Map<String,org.apache.hadoop.yarn.api.records.LocalResource> lr2) Gets additional resources specified in lr2, which are not present for lr1
boolean	isExactMatch(Object cs1, Object cs2) Checks if the container signatures match exactly
boolean	isSuperSet(Object cs1, Object cs2) Checks the compatibility between the specified container signatures.
Object	union(Object cs1, Object cs2) Do a union of 2 signatures Pre-condition.

Methods inherited from class java.lang.Object

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

Constructor Detail

ContainerContextMatcher

public ContainerContextMatcher()

Method Detail

isSuperSet

public boolean isSuperSet(Object cs1,
                 Object cs2)

Description copied from interface: ContainerSignatureMatcher

Checks the compatibility between the specified container signatures.

Specified by:

isSuperSet in interface ContainerSignatureMatcher

Returns:

true if the first signature is a super set of the second signature.

isExactMatch

public boolean isExactMatch(Object cs1,
                   Object cs2)

Description copied from interface: ContainerSignatureMatcher

Checks if the container signatures match exactly

Specified by:

isExactMatch in interface ContainerSignatureMatcher

Returns:

true if exact match

getAdditionalResources

public Map<String,org.apache.hadoop.yarn.api.records.LocalResource> getAdditionalResources(Map<String,org.apache.hadoop.yarn.api.records.LocalResource> lr1,
                                                                                  Map<String,org.apache.hadoop.yarn.api.records.LocalResource> lr2)

Description copied from interface: ContainerSignatureMatcher

Gets additional resources specified in lr2, which are not present for lr1

Specified by:

getAdditionalResources in interface ContainerSignatureMatcher

Returns:

additional resources specified in lr2, which are not present for lr1

union

public Object union(Object cs1,
           Object cs2)

Description copied from interface: ContainerSignatureMatcher

Do a union of 2 signatures Pre-condition. This function should only be invoked iff cs1 is compatible with cs2. i.e. isSuperSet should not return false.

Specified by:

union in interface ContainerSignatureMatcher

Parameters:

cs1 - Signature 1 Original signature

cs2 - Signature 2 New signature

Returns:

Union of 2 signatures