Mutual Friends MapReduce Application

Motivation

Finding mutual friends is a compelling MapReduce App and has a nice write up on the web.

Background

Steve Krenzel Finding Friends

Code To Implement

class:	MutualFriendsMapper.java
methods:	map
package:	mapreduce.apps.friends.studio
source folder:	student/src/main/java

method: public void map(Account account, BiConsumer<OrderedPair<AccountId>, Set<AccountId>> keyValuePairConsumer) (sequential implementation only)

class:	MutualFriendsClassicReducer.java
methods:	finisher
package:	mapreduce.apps.friends.studio
source folder:	student/src/main/java

method: public Function<List<Set<AccountId>>, MutualFriendIds> finisher() (sequential implementation only)

Testing Your Solution

Correctness

class:	MutualFriendsStudioTestSuite.java
package:	mapreduce
source folder:	testing/src/test/java