opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/legacy/sharded/adapter/ShardedDOMDataBrokerDelegatingTransactionChain.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.controller.md.sal.dom.broker.impl.legacy.sharded.adapter;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.base.Preconditions;
  13 import com.google.common.collect.Maps;
  14 import java.util.Map;
  15 import java.util.concurrent.atomic.AtomicLong;
  16 import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
  17 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
  18 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
  19 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  20 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  21 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  22 import org.opendaylight.mdsal.dom.api.DOMDataTreeReadTransaction;
  23 import org.opendaylight.mdsal.dom.api.DOMDataTreeTransaction;
  24 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
  25 import org.opendaylight.mdsal.dom.api.DOMTransactionChainListener;
  26 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  27
  28 @Deprecated
  29 class ShardedDOMDataBrokerDelegatingTransactionChain implements DOMTransactionChain, DOMTransactionChainListener {
  30     private final org.opendaylight.mdsal.dom.api.DOMTransactionChain txChainDelegate;
  31     private final SchemaContext schemaContext;
  32     private final TransactionChainListener txChainListener;
  33     private final Object txChainIdentifier;
  34     private final AtomicLong txNum = new AtomicLong();
  35
  36     private final Map<Object, AsyncTransaction<?, ?>> transactionMap;
  37
  38     ShardedDOMDataBrokerDelegatingTransactionChain(final Object txChainIdentifier,
  39                                                           final SchemaContext schemaContext,
  40                                                           final org.opendaylight.mdsal.dom.api.DOMDataBroker
  41                                                                   brokerDelegate,
  42                                                           final TransactionChainListener txChainListener) {
  43         requireNonNull(brokerDelegate);
  44         this.schemaContext = requireNonNull(schemaContext);
  45         this.txChainIdentifier = requireNonNull(txChainIdentifier);
  46         this.txChainListener = requireNonNull(txChainListener);
  47         this.txChainDelegate = brokerDelegate.createTransactionChain(this);
  48         transactionMap = Maps.newHashMap();
  49     }
  50
  51     @Override
  52     public DOMDataReadOnlyTransaction newReadOnlyTransaction() {
  53         final DOMDataTreeReadTransaction readTxDelegate = txChainDelegate.newReadOnlyTransaction();
  54         final DOMDataReadOnlyTransaction readTx = new ShardedDOMDataBrokerDelegatingReadTransaction(
  55                 newTransactionIdentifier(), readTxDelegate);
  56         transactionMap.put(readTxDelegate.getIdentifier(), readTx);
  57
  58         return readTx;
  59     }
  60
  61     @Override
  62     public DOMDataReadWriteTransaction newReadWriteTransaction() {
  63         final Object readWriteTxId = newTransactionIdentifier();
  64         final DOMDataTreeReadTransaction readTxDelegate = txChainDelegate.newReadOnlyTransaction();
  65         final DOMDataReadOnlyTransaction readTx = new ShardedDOMDataBrokerDelegatingReadTransaction(readWriteTxId,
  66                                                                                                     readTxDelegate);
  67
  68         final DOMDataTreeWriteTransaction writeTxDelegate = txChainDelegate.newWriteOnlyTransaction();
  69         final DOMDataWriteTransaction writeTx = new ShardedDOMDataBrokerDelegatingWriteTransaction(readWriteTxId,
  70                                                                                                    writeTxDelegate);
  71
  72         final DOMDataReadWriteTransaction readWriteTx = new ShardedDOMDataBrokerDelegatingReadWriteTransaction(
  73                 readWriteTxId, schemaContext, readTx, writeTx);
  74         transactionMap.put(readTxDelegate.getIdentifier(), readWriteTx);
  75         transactionMap.put(writeTxDelegate.getIdentifier(), readWriteTx);
  76
  77         return readWriteTx;
  78     }
  79
  80     @Override
  81     public DOMDataWriteTransaction newWriteOnlyTransaction() {
  82         final DOMDataTreeWriteTransaction writeTxDelegate = txChainDelegate.newWriteOnlyTransaction();
  83         final DOMDataWriteTransaction writeTx = new ShardedDOMDataBrokerDelegatingWriteTransaction(
  84                 newTransactionIdentifier(), writeTxDelegate);
  85         transactionMap.put(writeTxDelegate.getIdentifier(), writeTx);
  86
  87         return writeTx;
  88     }
  89
  90     @Override
  91     public void close() {
  92         txChainDelegate.close();
  93     }
  94
  95     @Override
  96     public void onTransactionChainFailed(org.opendaylight.mdsal.dom.api.DOMTransactionChain chain,
  97             DOMDataTreeTransaction transaction, Throwable cause) {
  98         txChainListener.onTransactionChainFailed(this, transactionFromDelegate(transaction.getIdentifier()), cause);
  99     }
 100
 101     @Override
 102     public void onTransactionChainSuccessful(org.opendaylight.mdsal.dom.api.DOMTransactionChain chain) {
 103         txChainListener.onTransactionChainSuccessful(this);
 104     }
 105
 106     private AsyncTransaction<?, ?> transactionFromDelegate(final Object delegateId) {
 107         Preconditions.checkState(transactionMap.containsKey(delegateId),
 108                                  "Delegate transaction {} is not present in transaction chain history", delegateId);
 109         return transactionMap.get(delegateId);
 110     }
 111
 112     private Object newTransactionIdentifier() {
 113         return "DOM-CHAIN-" + txChainIdentifier + "-" + txNum.getAndIncrement();
 114     }
 115 }