git.opendaylight Code Review - netvirt.git/blob

   1 /*
   2  * Copyright (c) 2015 - 2016 Ericsson India Global Services Pvt Ltd. 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.netvirt.vpnmanager;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.util.concurrent.CheckedFuture;
  12 import com.google.common.util.concurrent.FutureCallback;
  13 import com.google.common.util.concurrent.Futures;
  14 import java.util.concurrent.ExecutionException;
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  17 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  18 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  19 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  20 import org.opendaylight.yangtools.yang.binding.DataObject;
  21 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 public class TransactionUtil {
  26     private static final Logger LOG = LoggerFactory.getLogger(TransactionUtil.class);
  27
  28     private TransactionUtil() {
  29     }
  30
  31     public static final FutureCallback<Void> DEFAULT_CALLBACK = new FutureCallback<Void>() {
  32         public void onSuccess(Void result) {
  33             LOG.debug("onSuccess: Success in Datastore operation");
  34         }
  35
  36         public void onFailure(Throwable error) {
  37             LOG.error("onFailure: Error in Datastore operation", error);
  38         }
  39
  40         ;
  41     };
  42
  43     public static <T extends DataObject> Optional<T> read(DataBroker dataBroker, LogicalDatastoreType datastoreType,
  44         InstanceIdentifier<T> path) {
  45
  46         ReadOnlyTransaction tx = dataBroker.newReadOnlyTransaction();
  47
  48         Optional<T> result;
  49         try {
  50             result = tx.read(datastoreType, path).get();
  51         } catch (InterruptedException | ExecutionException e) {
  52             LOG.debug("read: Error while reading data from path {}", path);
  53             throw new RuntimeException(e);
  54         }
  55
  56         return result;
  57     }
  58
  59     public static <T extends DataObject> void asyncWrite(DataBroker dataBroker, LogicalDatastoreType datastoreType,
  60         InstanceIdentifier<T> path, T data,
  61         FutureCallback<Void> callback) {
  62         WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
  63         tx.put(datastoreType, path, data, true);
  64         Futures.addCallback(tx.submit(), callback);
  65     }
  66
  67     public static <T extends DataObject> void syncWrite(DataBroker dataBroker, LogicalDatastoreType datastoreType,
  68         InstanceIdentifier<T> path,
  69         T data, FutureCallback<Void> callback) {
  70         WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
  71         tx.put(datastoreType, path, data, WriteTransaction.CREATE_MISSING_PARENTS);
  72         CheckedFuture<Void, TransactionCommitFailedException> futures = tx.submit();
  73         try {
  74             futures.get();
  75         } catch (InterruptedException | ExecutionException e) {
  76             LOG.error("syncWrite: Error writing VPN instance to ID info to datastore (path, data) : ({}, {})",
  77                     path, data);
  78             throw new RuntimeException(e.getMessage());
  79         }
  80     }
  81 }