applications/forwardingrules-sync/src/main/java/org/opendaylight/openflowplugin/applications/frsync/util/FxChainUtil.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
   9 package org.opendaylight.openflowplugin.applications.frsync.util;
  10
  11 import com.google.common.base.MoreObjects;
  12 import com.google.common.collect.ImmutableList;
  13 import com.google.common.util.concurrent.FutureCallback;
  14 import java.util.Collection;
  15 import javax.annotation.Nullable;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  17 import org.opendaylight.yangtools.yang.common.RpcError;
  18 import org.opendaylight.yangtools.yang.common.RpcResult;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 /**
  23  * Util methods for {@link com.google.common.util.concurrent.ListenableFuture} chaining.
  24  */
  25 public final class FxChainUtil {
  26
  27     private static final Logger LOG = LoggerFactory.getLogger(FxChainUtil.class);
  28
  29     private FxChainUtil() {
  30         throw new IllegalStateException("This class should not be instantiated.");
  31     }
  32
  33
  34     public static FutureCallback<RpcResult<Void>> logResultCallback(final NodeId nodeId, final String prefix) {
  35         return new FutureCallback<RpcResult<Void>>() {
  36             @Override
  37             public void onSuccess(@Nullable final RpcResult<Void> result) {
  38                 if (result != null) {
  39                     if (result.isSuccessful()) {
  40                         LOG.debug("{} finished successfully: {}", prefix, nodeId.getValue());
  41                     } else {
  42                         final Collection<RpcError> errors = MoreObjects.firstNonNull(result.getErrors(),
  43                                 ImmutableList.of());
  44                         LOG.debug("{} failed: {} -> {}", prefix, nodeId.getValue(), errors);
  45                     }
  46                 } else {
  47                     LOG.debug("{} reconciliation failed: {} -> null result", prefix, nodeId.getValue());
  48                 }
  49             }
  50
  51             @Override
  52             public void onFailure(final Throwable failure) {
  53                 LOG.debug("{} reconciliation failed seriously: {}", prefix, nodeId.getValue(), failure);
  54             }
  55         };
  56     }
  57 }