Examples of org.infinispan.distribution.ch.impl.DefaultConsistentHashFactory

Package org.infinispan.distribution.ch.impl

Examples of org.infinispan.distribution.ch.impl.DefaultConsistentHashFactory

org.infinispan.distribution.ch.impl.DefaultConsistentHashFactory
Default implementation of {@link ConsistentHashFactory}. All methods except {@link #union(DefaultConsistentHash,DefaultConsistentHash)} return a consistent hashwith floor(numOwners*numSegments/numNodes) <= segments per owner <= ceil(numOwners*numSegments/numNodes). @author Dan Berindei @author anistor@redhat.com @since 5.2

      symDiffMembers.removeAll(commonMembers);
      return symDiffMembers;
   }


   public void test1() {
      DefaultConsistentHashFactory chf = new DefaultConsistentHashFactory();
      TestAddress A = new TestAddress(0, "A");
      TestAddress B = new TestAddress(1, "B");
      TestAddress C = new TestAddress(2, "C");
      TestAddress D = new TestAddress(3, "D");


      DefaultConsistentHash ch1 = chf.create(new MurmurHash3(), 2, 60, Arrays.<Address>asList(A), null);
      //System.out.println(ch1);


      DefaultConsistentHash ch2 = chf.updateMembers(ch1, Arrays.<Address>asList(A, B), null);
      ch2 = chf.rebalance(ch2);
      //System.out.println(ch2);


      DefaultConsistentHash ch3 = chf.updateMembers(ch2, Arrays.<Address>asList(A, B, C), null);
      ch3 = chf.rebalance(ch3);
      //System.out.println(ch3);


      DefaultConsistentHash ch4 = chf.updateMembers(ch3, Arrays.<Address>asList(A, B, C, D), null);
      ch4 = chf.rebalance(ch4);
      //System.out.println(ch4);
   }

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   }


   private ConsistentHash createNewConsistentHash(List<Address> servers) {
      try {
         // TODO Revisit after we have replaced the CH with the CHFactory in the configuration
         return new DefaultConsistentHashFactory().create(new org.infinispan.commons.hash.MurmurHash3(), 2, 10,
               servers, null);
      } catch (RuntimeException re) {
         throw re;
      } catch (Exception e) {
         throw new RuntimeException(e);

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      List<MagicKey> keys = init();
      ConsistentHash chOld = getConsistentHash(c1);
      Address joinerAddress = startNewMember();
      List<Address> newMembers = new ArrayList<Address>(chOld.getMembers());
      newMembers.add(joinerAddress);
      DefaultConsistentHashFactory chf = new DefaultConsistentHashFactory();
      ConsistentHash chNew = chf.rebalance(chf.updateMembers((DefaultConsistentHash) chOld, newMembers, null));
      // which key should me mapped to the joiner?
      MagicKey keyToTest = null;
      for (MagicKey k: keys) {
         if (chNew.isKeyLocalToNode(joinerAddress, k)) {
            keyToTest = k;

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      Address a2 = new JGroupsAddress(UUID.randomUUID());
      Address a3 = new JGroupsAddress(UUID.randomUUID());
      List<Address> oldAddresses = new ArrayList<Address>();
      oldAddresses.add(a1);
      oldAddresses.add(a2);
      DefaultConsistentHashFactory chf = new DefaultConsistentHashFactory();
      DefaultConsistentHash oldCh = chf.create(new MurmurHash3(), 2, 3, oldAddresses, null);
      List<Address> newAddresses = new ArrayList<Address>();
      newAddresses.add(a1);
      newAddresses.add(a2);
      newAddresses.add(a3);
      DefaultConsistentHash newCh = chf.create(new MurmurHash3(), 2, 3, newAddresses, null);
      StateRequestCommand c14 = new StateRequestCommand(cacheName, StateRequestCommand.Type.START_STATE_TRANSFER, a1, 99, null);
      byte[] bytes = marshaller.objectToByteBuffer(c14);
      marshaller.objectFromByteBuffer(bytes);


      bytes = marshaller.objectToByteBuffer(c14);

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         if (cacheMode.isClustered()) {
            if (cacheMode.isDistributed()) {
               if (globalConfiguration.transport().hasTopologyInfo()) {
                  factory = new TopologyAwareConsistentHashFactory();
               } else {
                  factory = new DefaultConsistentHashFactory();
               }
            } else {
               // this is also used for invalidation mode
               factory = new ReplicatedConsistentHashFactory();
            }

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      Address a2 = new JGroupsAddress(UUID.randomUUID());
      Address a3 = new JGroupsAddress(UUID.randomUUID());
      List<Address> oldAddresses = new ArrayList<Address>();
      oldAddresses.add(a1);
      oldAddresses.add(a2);
      DefaultConsistentHashFactory chf = new DefaultConsistentHashFactory();
      DefaultConsistentHash oldCh = chf.create(new MurmurHash3(), 2, 3, oldAddresses, null);
      List<Address> newAddresses = new ArrayList<Address>();
      newAddresses.add(a1);
      newAddresses.add(a2);
      newAddresses.add(a3);
      DefaultConsistentHash newCh = chf.create(new MurmurHash3(), 2, 3, newAddresses, null);
      StateRequestCommand c14 = new StateRequestCommand(cacheName, StateRequestCommand.Type.START_STATE_TRANSFER, a1, 99, null);
      byte[] bytes = marshaller.objectToByteBuffer(c14);
      marshaller.objectFromByteBuffer(bytes);


      bytes = marshaller.objectToByteBuffer(c14);

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