Removed operation retry wrappers around various consistent map/atomic counter operations

Change-Id: Ie6c22a983a01bf3488eff51a493554319c5d15f8
diff --git a/core/store/dist/src/main/java/org/onosproject/store/config/impl/DistributedNetworkConfigStore.java b/core/store/dist/src/main/java/org/onosproject/store/config/impl/DistributedNetworkConfigStore.java
index 855eefb..2d4fc4d 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/config/impl/DistributedNetworkConfigStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/config/impl/DistributedNetworkConfigStore.java
@@ -36,7 +36,6 @@
 import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
-import org.onlab.util.Tools;
 import org.onosproject.net.config.Config;
 import org.onosproject.net.config.ConfigApplyDelegate;
 import org.onosproject.net.config.ConfigFactory;
@@ -46,7 +45,6 @@
 import org.onosproject.store.AbstractStore;
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.ConsistentMap;
-import org.onosproject.store.service.ConsistentMapException;
 import org.onosproject.store.service.MapEvent;
 import org.onosproject.store.service.MapEventListener;
 import org.onosproject.store.service.Serializer;
@@ -78,7 +76,6 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    private static final int MAX_BACKOFF = 10;
     private static final String INVALID_CONFIG_JSON =
             "JSON node does not contain valid configuration";
     private static final String INVALID_JSON_LIST =
@@ -232,9 +229,7 @@
 
     @Override
     public <S, T extends Config<S>> T getConfig(S subject, Class<T> configClass) {
-        // TODO: need to identify and address the root cause for timeouts.
-        Versioned<JsonNode> json = Tools.retryable(configs::get, ConsistentMapException.class, 1, MAX_BACKOFF)
-                .apply(key(subject, configClass));
+        Versioned<JsonNode> json = configs.get(key(subject, configClass));
         return json != null ? createConfig(subject, configClass, json.value()) : null;
     }
 
diff --git a/core/store/dist/src/main/java/org/onosproject/store/host/impl/DistributedHostStore.java b/core/store/dist/src/main/java/org/onosproject/store/host/impl/DistributedHostStore.java
index 83c922d..0e69e8e 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/host/impl/DistributedHostStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/host/impl/DistributedHostStore.java
@@ -28,7 +28,6 @@
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
 import org.onlab.util.KryoNamespace;
-import org.onlab.util.Tools;
 import org.onosproject.net.Annotations;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.DefaultAnnotations;
@@ -45,12 +44,10 @@
 import org.onosproject.store.AbstractStore;
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.ConsistentMap;
-import org.onosproject.store.service.ConsistentMapException;
 import org.onosproject.store.service.MapEvent;
 import org.onosproject.store.service.MapEventListener;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
-import org.onosproject.store.service.Versioned;
 import org.slf4j.Logger;
 
 import java.util.Collection;
@@ -60,7 +57,6 @@
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.function.Predicate;
-import java.util.function.Supplier;
 import java.util.stream.Collectors;
 
 import static com.google.common.base.Preconditions.checkNotNull;
@@ -83,7 +79,7 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected StorageService storageService;
 
-    private ConsistentMap<HostId, DefaultHost> host;
+    private ConsistentMap<HostId, DefaultHost> hostsConsistentMap;
     private Map<HostId, DefaultHost> hosts;
 
     private final ConcurrentHashMap<HostId, DefaultHost> prevHosts =
@@ -97,24 +93,24 @@
         KryoNamespace.Builder hostSerializer = KryoNamespace.newBuilder()
                 .register(KryoNamespaces.API);
 
-        host = storageService.<HostId, DefaultHost>consistentMapBuilder()
+        hostsConsistentMap = storageService.<HostId, DefaultHost>consistentMapBuilder()
                 .withName("onos-hosts")
                 .withRelaxedReadConsistency()
                 .withSerializer(Serializer.using(hostSerializer.build()))
                 .build();
 
-        hosts = host.asJavaMap();
+        hosts = hostsConsistentMap.asJavaMap();
 
         prevHosts.putAll(hosts);
 
-        host.addListener(hostLocationTracker);
+        hostsConsistentMap.addListener(hostLocationTracker);
 
         log.info("Started");
     }
 
     @Deactivate
     public void deactivate() {
-        host.removeListener(hostLocationTracker);
+        hostsConsistentMap.removeListener(hostLocationTracker);
         prevHosts.clear();
 
         log.info("Stopped");
@@ -162,8 +158,7 @@
                                         HostId hostId,
                                         HostDescription hostDescription,
                                         boolean replaceIPs) {
-        Supplier<Versioned<DefaultHost>> supplier =
-                () -> host.computeIf(hostId,
+        hostsConsistentMap.computeIf(hostId,
                        existingHost -> shouldUpdate(existingHost, providerId, hostId,
                                                     hostDescription, replaceIPs),
                        (id, existingHost) -> {
@@ -193,12 +188,6 @@
                                                   addresses,
                                                   annotations);
                        });
-
-        Tools.retryable(supplier,
-                        ConsistentMapException.ConcurrentModification.class,
-                        Integer.MAX_VALUE,
-                        50).get();
-
         return null;
     }
 
diff --git a/core/store/dist/src/main/java/org/onosproject/store/packet/impl/DistributedPacketStore.java b/core/store/dist/src/main/java/org/onosproject/store/packet/impl/DistributedPacketStore.java
index 6ec5b58..30a4de1 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/packet/impl/DistributedPacketStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/packet/impl/DistributedPacketStore.java
@@ -42,7 +42,6 @@
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.serializers.StoreSerializer;
 import org.onosproject.store.service.ConsistentMap;
-import org.onosproject.store.service.ConsistentMapException;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.osgi.service.component.ComponentContext;
@@ -60,7 +59,6 @@
 import static com.google.common.base.Strings.isNullOrEmpty;
 import static org.onlab.util.Tools.get;
 import static org.onlab.util.Tools.groupedThreads;
-import static org.onlab.util.Tools.retryable;
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
@@ -206,9 +204,7 @@
         }
 
         private void add(PacketRequest request) {
-            AtomicBoolean firstRequest =
-                    retryable(this::addInternal, ConsistentMapException.ConcurrentModification.class,
-                              Integer.MAX_VALUE, MAX_BACKOFF).apply(request);
+            AtomicBoolean firstRequest = addInternal(request);
             if (firstRequest.get() && delegate != null) {
                 // The instance that makes the first request will push to all devices
                 delegate.requestPackets(request);
@@ -234,9 +230,7 @@
         }
 
         private void remove(PacketRequest request) {
-            AtomicBoolean removedLast =
-                    retryable(this::removeInternal, ConsistentMapException.ConcurrentModification.class,
-                              Integer.MAX_VALUE, MAX_BACKOFF).apply(request);
+            AtomicBoolean removedLast = removeInternal(request);
             if (removedLast.get() && delegate != null) {
                 // The instance that removes the last request will remove from all devices
                 delegate.cancelPackets(request);
diff --git a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/ConsistentContinuousResourceSubStore.java b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/ConsistentContinuousResourceSubStore.java
index 7b4a4b5..e9c9ad7 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/ConsistentContinuousResourceSubStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/ConsistentContinuousResourceSubStore.java
@@ -18,7 +18,6 @@
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import org.onlab.util.GuavaCollectors;
-import org.onlab.util.Tools;
 import org.onosproject.net.resource.ContinuousResource;
 import org.onosproject.net.resource.ContinuousResourceId;
 import org.onosproject.net.resource.DiscreteResourceId;
@@ -26,7 +25,6 @@
 import org.onosproject.net.resource.ResourceAllocation;
 import org.onosproject.net.resource.ResourceConsumerId;
 import org.onosproject.store.service.ConsistentMap;
-import org.onosproject.store.service.ConsistentMapException;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.TransactionContext;
 import org.onosproject.store.service.Versioned;
@@ -36,8 +34,6 @@
 import java.util.Set;
 import java.util.stream.Stream;
 
-import static org.onosproject.store.resource.impl.ConsistentResourceStore.MAX_RETRIES;
-import static org.onosproject.store.resource.impl.ConsistentResourceStore.RETRY_DELAY;
 import static org.onosproject.store.resource.impl.ConsistentResourceStore.SERIALIZER;
 
 class ConsistentContinuousResourceSubStore {
@@ -54,8 +50,7 @@
                 .withSerializer(SERIALIZER)
                 .build();
 
-        Tools.retryable(() -> childMap.put(Resource.ROOT.id(), new LinkedHashSet<>()),
-                ConsistentMapException.class, MAX_RETRIES, RETRY_DELAY);
+        childMap.put(Resource.ROOT.id(), new LinkedHashSet<>());
     }
 
     TransactionalContinuousResourceSubStore transactional(TransactionContext tx) {
diff --git a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/ConsistentDiscreteResourceSubStore.java b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/ConsistentDiscreteResourceSubStore.java
index c19e6c3..5650585 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/ConsistentDiscreteResourceSubStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/ConsistentDiscreteResourceSubStore.java
@@ -17,7 +17,6 @@
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
-import org.onlab.util.Tools;
 import org.onosproject.net.resource.DiscreteResource;
 import org.onosproject.net.resource.DiscreteResourceId;
 import org.onosproject.net.resource.Resource;
@@ -25,7 +24,6 @@
 import org.onosproject.net.resource.ResourceConsumerId;
 import org.onosproject.net.resource.Resources;
 import org.onosproject.store.service.ConsistentMap;
-import org.onosproject.store.service.ConsistentMapException;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.TransactionContext;
 import org.onosproject.store.service.Versioned;
@@ -35,8 +33,6 @@
 import java.util.Set;
 import java.util.stream.Stream;
 
-import static org.onosproject.store.resource.impl.ConsistentResourceStore.MAX_RETRIES;
-import static org.onosproject.store.resource.impl.ConsistentResourceStore.RETRY_DELAY;
 import static org.onosproject.store.resource.impl.ConsistentResourceStore.SERIALIZER;
 
 class ConsistentDiscreteResourceSubStore {
@@ -53,8 +49,7 @@
                 .withSerializer(SERIALIZER)
                 .build();
 
-        Tools.retryable(() -> childMap.put(Resource.ROOT.id(), DiscreteResources.empty()),
-                ConsistentMapException.class, MAX_RETRIES, RETRY_DELAY);
+        childMap.put(Resource.ROOT.id(), DiscreteResources.empty());
     }
 
     TransactionalDiscreteResourceSubStore transactional(TransactionContext tx) {
diff --git a/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LldpLinkProvider.java b/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LldpLinkProvider.java
index cd7e2d2..7459ce2 100644
--- a/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LldpLinkProvider.java
+++ b/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LldpLinkProvider.java
@@ -27,7 +27,6 @@
 import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.util.SharedExecutors;
-import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.cluster.ClusterMetadataService;
 import org.onosproject.cluster.ClusterService;
@@ -64,7 +63,6 @@
 import org.onosproject.net.provider.ProviderId;
 import org.onosproject.provider.lldpcommon.LinkDiscoveryContext;
 import org.onosproject.provider.lldpcommon.LinkDiscovery;
-import org.onosproject.store.service.ConsistentMapException;
 import org.osgi.service.component.ComponentContext;
 import org.slf4j.Logger;
 
@@ -246,14 +244,10 @@
         cfgRegistry.addListener(cfgListener);
         factories.forEach(cfgRegistry::registerConfigFactory);
 
-        SuppressionConfig cfg =
-                Tools.retryable(() -> cfgRegistry.getConfig(appId, SuppressionConfig.class),
-                                ConsistentMapException.class, MAX_RETRIES, RETRY_DELAY).get();
+        SuppressionConfig cfg = cfgRegistry.getConfig(appId, SuppressionConfig.class);
         if (cfg == null) {
             // If no configuration is found, register default.
-            cfg = Tools.retryable(this::setDefaultSuppressionConfig,
-                                  ConsistentMapException.class,
-                                  MAX_RETRIES, RETRY_DELAY).get();
+            cfg = this.setDefaultSuppressionConfig();
         }
         cfgListener.reconfigureSuppressionRules(cfg);