dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/ShardedDOMDataBrokerAdapter.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.mdsal.dom.broker;
   9
  10 import java.util.concurrent.atomic.AtomicLong;
  11 import org.opendaylight.mdsal.dom.api.DOMDataTreeReadTransaction;
  12 import org.opendaylight.mdsal.dom.api.DOMDataTreeReadWriteTransaction;
  13 import org.opendaylight.mdsal.dom.api.DOMDataTreeService;
  14 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
  15 import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
  16 import org.opendaylight.mdsal.dom.api.DOMTransactionChainListener;
  17 import org.opendaylight.mdsal.dom.spi.PingPongMergingDOMDataBroker;
  18
  19 public class ShardedDOMDataBrokerAdapter implements PingPongMergingDOMDataBroker {
  20     private final AtomicLong chainNum = new AtomicLong();
  21     private final AtomicLong txNum = new AtomicLong();
  22     private final DOMDataTreeService service;
  23
  24     public ShardedDOMDataBrokerAdapter(final DOMDataTreeService service) {
  25         this.service = service;
  26     }
  27
  28     @Override
  29     public DOMDataTreeReadTransaction newReadOnlyTransaction() {
  30         return new ShardedDOMReadTransactionAdapter(newTransactionIdentifier(), service);
  31     }
  32
  33     @Override
  34     public DOMDataTreeWriteTransaction newWriteOnlyTransaction() {
  35         return new ShardedDOMWriteTransactionAdapter(newTransactionIdentifier(), service);
  36     }
  37
  38     @Override
  39     public DOMDataTreeReadWriteTransaction newReadWriteTransaction() {
  40         return new ShardedDOMReadWriteTransactionAdapter(newTransactionIdentifier(), service);
  41     }
  42
  43     @Override
  44     public DOMTransactionChain createTransactionChain(final DOMTransactionChainListener listener) {
  45         return new ShardedDOMTransactionChainAdapter(newChainIdentifier(), service, listener);
  46     }
  47
  48     private Object newTransactionIdentifier() {
  49         return "DOM-" + txNum.getAndIncrement();
  50     }
  51
  52     private Object newChainIdentifier() {
  53         return "DOM-CHAIN-" + chainNum;
  54     }
  55 }