Honeycomb-73 Extensible initializers for nsh

Change-Id: I019e4d1ac50d77c20b47c39e7eafee36cc04509b
Signed-off-by: Maros Marsalek <mmarsale@cisco.com>

14 files changed, 81 insertions, 273 deletions

diff --git a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/VppNshModule.java b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/VppNshModule.java
index cd21e0e76..90c826dc7 100755
--- a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/VppNshModule.java
+++ b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/VppNshModule.java
@@ -18,16 +18,14 @@ package io.fd.honeycomb.vppnsh.impl;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.inject.AbstractModule;
+import com.google.inject.Provider;
 import com.google.inject.Singleton;
 import com.google.inject.multibindings.Multibinder;
 import com.google.inject.name.Names;
-import com.google.inject.Provider;
-import io.fd.honeycomb.data.init.DataTreeInitializer;
 import io.fd.honeycomb.translate.read.ReaderFactory;
 import io.fd.honeycomb.translate.vpp.util.NamingContext;
 import io.fd.honeycomb.translate.write.WriterFactory;
 import io.fd.honeycomb.vppnsh.impl.config.VppNshWriterFactory;
-import io.fd.honeycomb.vppnsh.impl.init.VppNshInitializer;
 import io.fd.honeycomb.vppnsh.impl.oper.VppNshReaderFactory;
 import io.fd.honeycomb.vppnsh.impl.util.JVppNshProvider;
 import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
@@ -70,7 +68,6 @@ public final class VppNshModule extends AbstractModule {
         // Below are classes picked up by HC framework
         Multibinder.newSetBinder(binder(), WriterFactory.class).addBinding().to(VppNshWriterFactory.class);
         Multibinder.newSetBinder(binder(), ReaderFactory.class).addBinding().to(VppNshReaderFactory.class);
-        Multibinder.newSetBinder(binder(), DataTreeInitializer.class).addBinding().to(VppNshInitializer.class);
         LOG.info("Module NSH successfully configured");
     }
 }
diff --git a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/config/NshMapWriterCustomizer.java b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/config/NshMapWriterCustomizer.java
index c272e0e34..701475936 100755
--- a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/config/NshMapWriterCustomizer.java
+++ b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/config/NshMapWriterCustomizer.java
@@ -32,10 +32,10 @@ import io.fd.vpp.jvpp.nsh.dto.NshAddDelMapReply;
 import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
 import java.util.concurrent.CompletionStage;
 import javax.annotation.Nonnull;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VxlanGpe;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Swap;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Push;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Pop;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Push;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Swap;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VxlanGpe;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMap;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMapKey;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
diff --git a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/config/VppNshWriterFactory.java b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/config/VppNshWriterFactory.java
index 26c681101..61c442e18 100755
--- a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/config/VppNshWriterFactory.java
+++ b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/config/VppNshWriterFactory.java
@@ -23,16 +23,16 @@ import io.fd.honeycomb.translate.impl.write.GenericListWriter;
 import io.fd.honeycomb.translate.vpp.util.NamingContext;
 import io.fd.honeycomb.translate.write.WriterFactory;
 import io.fd.honeycomb.translate.write.registry.ModifiableWriterRegistryBuilder;
+import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
 import javax.annotation.Nonnull;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNsh;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.NshMdType1Augment;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.NshMdType2Augment;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNsh;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshEntries;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntry;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshMaps;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntry;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMap;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
 
 public class VppNshWriterFactory implements WriterFactory {
 
diff --git a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/init/VppNshInitializer.java b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/init/VppNshInitializer.java
deleted file mode 100755
index ca13d8a19..000000000
--- a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/init/VppNshInitializer.java
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright (c) 2016 Intel and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.vppnsh.impl.init;
-
-import com.google.inject.Inject;
-import com.google.inject.name.Named;
-import io.fd.honeycomb.data.init.AbstractDataTreeConverter;
-import java.util.stream.Collectors;
-
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
-
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNsh;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshState;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshEntries;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshEntriesBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshMaps;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshMapsBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntry;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntryBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMap;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMapBuilder;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * This is an initializer for VppNsh plugin. Its main goal is to revers-engineer configuration data (config "true")
- * for Nsh model from operational data. In this case, we are trying to recreate Nsh container from NshsState
- * container. Thanks to symmetrical nature of the model, it's pretty straightforward.
- *
- * This is very useful when the lower layer already contains some data that should be revers-engineer to config data
- * in honeycomb in order to get HC and lower layer to sync... It makes life of upper layers much easier
- *
- * However it's not always possible to perform this task so the initializers are optional for plugins
- */
-public class VppNshInitializer extends AbstractDataTreeConverter<VppNshState, VppNsh> {
-
-    private static final Logger LOG = LoggerFactory.getLogger(VppNshInitializer.class);
-    private static final InstanceIdentifier<VppNshState> OPER_ID = InstanceIdentifier.create(VppNshState.class);
-    private static final InstanceIdentifier<VppNsh> CFG_ID = InstanceIdentifier.create(VppNsh.class);
-
-    @Inject
-    public VppNshInitializer(@Named("honeycomb-initializer") final DataBroker bindingDataBroker) {
-        super(bindingDataBroker, OPER_ID, CFG_ID);
-    }
-
-    @Override
-    protected VppNsh convert(final VppNshState operationalData) {
-        // Just convert operational data into config data
-        // The operational data are queried from lower layer using readerCustomizers from this plugin
-
-        LOG.info("Initializing VppNsh config data from: {}", operationalData);
-
-        VppNshBuilder vppNshBuilder = new VppNshBuilder();
-
-        NshEntriesBuilder nshEntriesBuilder = new NshEntriesBuilder()
-                .setNshEntry(operationalData.getNshEntries().getNshEntry().stream()
-                        .map(oper -> new NshEntryBuilder(oper).setName(oper.getName()).build())
-                        .collect(Collectors.toList()));
-        vppNshBuilder.setNshEntries(nshEntriesBuilder.build());
-
-        NshMapsBuilder nshMapsBuilder = new NshMapsBuilder()
-                .setNshMap(operationalData.getNshMaps().getNshMap().stream()
-                        .map(oper -> new NshMapBuilder(oper).setName(oper.getName()).build())
-                        .collect(Collectors.toList()));
-        vppNshBuilder.setNshMaps(nshMapsBuilder.build());
-
-        return vppNshBuilder.build();
-    }
-}
diff --git a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/oper/NshEntryReaderCustomizer.java b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/oper/NshEntryReaderCustomizer.java
index 186db26ff..066fb103d 100755
--- a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/oper/NshEntryReaderCustomizer.java
+++ b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/oper/NshEntryReaderCustomizer.java
@@ -21,7 +21,8 @@ import static com.google.common.base.Preconditions.checkNotNull;
 
 import io.fd.honeycomb.translate.read.ReadContext;
 import io.fd.honeycomb.translate.read.ReadFailedException;
-import io.fd.honeycomb.translate.spi.read.ListReaderCustomizer;
+import io.fd.honeycomb.translate.spi.read.Initialized;
+import io.fd.honeycomb.translate.spi.read.InitializingListReaderCustomizer;
 import io.fd.honeycomb.translate.vpp.util.JvppReplyConsumer;
 import io.fd.honeycomb.translate.vpp.util.NamingContext;
 import io.fd.honeycomb.vppnsh.impl.util.FutureJVppNshCustomizer;
@@ -40,6 +41,7 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.MdType1;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.NshMdType1StateAugment;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.NshMdType1StateAugmentBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNsh;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshEntriesBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.entries.NshEntry;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.entries.NshEntryBuilder;
@@ -54,7 +56,7 @@ import org.slf4j.LoggerFactory;
  * Reader customizer responsible for nsh entry read.<br> to VPP.
  */
 public class NshEntryReaderCustomizer extends FutureJVppNshCustomizer
-        implements ListReaderCustomizer<NshEntry, NshEntryKey, NshEntryBuilder>, JvppReplyConsumer {
+        implements InitializingListReaderCustomizer<NshEntry, NshEntryKey, NshEntryBuilder>, JvppReplyConsumer {
 
     private static final Logger LOG = LoggerFactory.getLogger(NshEntryReaderCustomizer.class);
     private final NamingContext nshEntryContext;
@@ -65,7 +67,6 @@ public class NshEntryReaderCustomizer extends FutureJVppNshCustomizer
         this.nshEntryContext = checkNotNull(nshEntryContext, "nshEntryContext should not be null");
     }
 
-
     @Override
     public void merge(@Nonnull final Builder<? extends DataObject> builder,
                       @Nonnull final List<NshEntry> readData) {
@@ -196,4 +197,18 @@ public class NshEntryReaderCustomizer extends FutureJVppNshCustomizer
 
         return allIds;
     }
+
+    @Override
+    public Initialized<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntry> init(
+            @Nonnull final InstanceIdentifier<NshEntry> id, @Nonnull final NshEntry readValue,
+            @Nonnull final ReadContext ctx) {
+        return Initialized.create(
+                InstanceIdentifier.create(VppNsh.class).child(
+                        org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshEntries.class).child(
+                        org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntry.class,
+                        new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntryKey(id.firstKeyOf(NshEntry.class).getName())),
+                new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntryBuilder(readValue)
+                        .setName(readValue.getName())
+                        .build());
+    }
 }
diff --git a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/oper/NshMapReaderCustomizer.java b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/oper/NshMapReaderCustomizer.java
index 8e9b7793b..75ff21f27 100755
--- a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/oper/NshMapReaderCustomizer.java
+++ b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/oper/NshMapReaderCustomizer.java
@@ -22,7 +22,8 @@ import static com.google.common.base.Preconditions.checkState;
 
 import io.fd.honeycomb.translate.read.ReadContext;
 import io.fd.honeycomb.translate.read.ReadFailedException;
-import io.fd.honeycomb.translate.spi.read.ListReaderCustomizer;
+import io.fd.honeycomb.translate.spi.read.Initialized;
+import io.fd.honeycomb.translate.spi.read.InitializingListReaderCustomizer;
 import io.fd.honeycomb.translate.vpp.util.JvppReplyConsumer;
 import io.fd.honeycomb.translate.vpp.util.NamingContext;
 import io.fd.honeycomb.vppnsh.impl.util.FutureJVppNshCustomizer;
@@ -35,10 +36,11 @@ import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.CompletionStage;
 import javax.annotation.Nonnull;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VxlanGpe;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Swap;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Push;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Pop;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Push;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Swap;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNsh;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VxlanGpe;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshMapsBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.maps.NshMap;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.maps.NshMapBuilder;
@@ -53,7 +55,7 @@ import org.slf4j.LoggerFactory;
  * Reader customizer responsible for nsh map read.<br> to VPP.
  */
 public class NshMapReaderCustomizer extends FutureJVppNshCustomizer
-        implements ListReaderCustomizer<NshMap, NshMapKey, NshMapBuilder>, JvppReplyConsumer {
+        implements InitializingListReaderCustomizer<NshMap, NshMapKey, NshMapBuilder>, JvppReplyConsumer {
 
     private static final Logger LOG = LoggerFactory.getLogger(NshMapReaderCustomizer.class);
     private final NamingContext nshMapContext;
@@ -187,4 +189,17 @@ public class NshMapReaderCustomizer extends FutureJVppNshCustomizer
 
         return allIds;
     }
+
+    @Override
+    public Initialized<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMap> init(
+            @Nonnull final InstanceIdentifier<NshMap> id,
+            @Nonnull final NshMap readValue,
+            @Nonnull final ReadContext ctx) {
+        return Initialized.create(
+                InstanceIdentifier.create(VppNsh.class).child(
+                        org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshMaps.class).child(
+                        org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMap.class,
+                        new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMapKey(id.firstKeyOf(NshMap.class).getName())),
+                new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMapBuilder(readValue).setName(readValue.getName()).build());
+    }
 }
diff --git a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/oper/VppNshReaderFactory.java b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/oper/VppNshReaderFactory.java
index e4d459333..5eb54669a 100755
--- a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/oper/VppNshReaderFactory.java
+++ b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/oper/VppNshReaderFactory.java
@@ -18,21 +18,20 @@ package io.fd.honeycomb.vppnsh.impl.oper;
 
 import com.google.inject.Inject;
 import com.google.inject.name.Named;
-import io.fd.honeycomb.translate.impl.read.GenericListReader;
-import io.fd.honeycomb.translate.vpp.util.NamingContext;
+import io.fd.honeycomb.translate.impl.read.GenericInitListReader;
 import io.fd.honeycomb.translate.read.ReaderFactory;
 import io.fd.honeycomb.translate.read.registry.ModifiableReaderRegistryBuilder;
+import io.fd.honeycomb.translate.vpp.util.NamingContext;
+import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
 import javax.annotation.Nonnull;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshState;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshStateBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshEntries;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshEntriesBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.entries.NshEntry;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshMaps;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshMapsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.entries.NshEntry;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.maps.NshMap;
-
-import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 
 public class VppNshReaderFactory implements ReaderFactory {
@@ -67,13 +66,13 @@ public class VppNshReaderFactory implements ReaderFactory {
         registry.addStructuralReader(nshEntriesId, NshEntriesBuilder.class);
         //  NshENtry
         final InstanceIdentifier<NshEntry> nshEntryId = nshEntriesId.child(NshEntry.class);
-        registry.add(new GenericListReader<>(nshEntryId, new NshEntryReaderCustomizer(jvppNsh, nshEntryContext)));
+        registry.add(new GenericInitListReader<>(nshEntryId, new NshEntryReaderCustomizer(jvppNsh, nshEntryContext)));
 
         //  NshMaps(Structural)
         final InstanceIdentifier<NshMaps> nshMapsId = vppNshStateId.child(NshMaps.class);
         registry.addStructuralReader(nshMapsId, NshMapsBuilder.class);
         //  NshMap
         final InstanceIdentifier<NshMap> nshMapId = nshMapsId.child(NshMap.class);
-        registry.add(new GenericListReader<>(nshMapId, new NshMapReaderCustomizer(jvppNsh, nshMapContext, interfaceContext)));
+        registry.add(new GenericInitListReader<>(nshMapId, new NshMapReaderCustomizer(jvppNsh, nshMapContext, interfaceContext)));
     }
 }
diff --git a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/util/JVppNshProvider.java b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/util/JVppNshProvider.java
index 56f73dedf..6778bae2a 100755
--- a/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/util/JVppNshProvider.java
+++ b/nsh/impl/src/main/java/io/fd/honeycomb/vppnsh/impl/util/JVppNshProvider.java
@@ -17,13 +17,11 @@
 package io.fd.honeycomb.vppnsh.impl.util;
 
 import com.google.inject.Inject;
-import com.google.inject.Provider;
 import io.fd.honeycomb.infra.distro.ProviderTrait;
-import java.io.IOException;
 import io.fd.vpp.jvpp.JVppRegistry;
-import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
-import io.fd.vpp.jvpp.nsh.future.FutureJVppNshFacade;
 import io.fd.vpp.jvpp.nsh.JVppNshImpl;
+import io.fd.vpp.jvpp.nsh.future.FutureJVppNshFacade;
+import java.io.IOException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/VppNshModuleTest.java b/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/VppNshModuleTest.java
index a07f1c8c9..211757474 100644
--- a/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/VppNshModuleTest.java
+++ b/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/VppNshModuleTest.java
@@ -27,7 +27,6 @@ import static org.mockito.MockitoAnnotations.initMocks;
 import com.google.inject.Guice;
 import com.google.inject.Inject;
 import com.google.inject.Provider;
-import com.google.inject.multibindings.Multibinder;
 import com.google.inject.name.Named;
 import com.google.inject.testing.fieldbinder.Bind;
 import com.google.inject.testing.fieldbinder.BoundFieldModule;
@@ -36,30 +35,14 @@ import io.fd.honeycomb.translate.util.read.registry.CompositeReaderRegistryBuild
 import io.fd.honeycomb.translate.util.write.registry.FlatWriterRegistryBuilder;
 import io.fd.honeycomb.translate.vpp.util.NamingContext;
 import io.fd.honeycomb.translate.write.WriterFactory;
+import io.fd.vpp.jvpp.JVppRegistry;
+import io.fd.vpp.jvpp.nsh.future.FutureJVppNshFacade;
 import java.util.HashSet;
 import java.util.Set;
 import org.junit.Before;
 import org.junit.Test;
 import org.mockito.Mock;
 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-
-import io.fd.honeycomb.vppnsh.impl.config.VppNshWriterFactory;
-import io.fd.honeycomb.vppnsh.impl.init.VppNshInitializer;
-import io.fd.honeycomb.vppnsh.impl.oper.VppNshReaderFactory;
-import io.fd.honeycomb.vppnsh.impl.util.JVppNshProvider;
-import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
-import io.fd.vpp.jvpp.nsh.future.FutureJVppNshFacade;
-import io.fd.vpp.jvpp.JVppRegistry;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshState;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshStateBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshEntries;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshEntriesBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.entries.NshEntry;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshMaps;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshMapsBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.maps.NshMap;
-
 
 public class VppNshModuleTest {
 
diff --git a/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/config/NshEntryWriterCustomizerTest.java b/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/config/NshEntryWriterCustomizerTest.java
index ef0fa111a..23f861073 100644
--- a/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/config/NshEntryWriterCustomizerTest.java
+++ b/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/config/NshEntryWriterCustomizerTest.java
@@ -20,20 +20,18 @@ import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 import static org.mockito.Matchers.any;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
 
 import io.fd.honeycomb.translate.vpp.util.NamingContext;
 import io.fd.honeycomb.translate.write.WriteFailedException;
 import io.fd.honeycomb.vpp.test.write.WriterCustomizerTest;
+import io.fd.vpp.jvpp.VppBaseCallException;
+import io.fd.vpp.jvpp.nsh.dto.NshAddDelEntry;
+import io.fd.vpp.jvpp.nsh.dto.NshAddDelEntryReply;
+import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
 import org.junit.Test;
 import org.mockito.Mock;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Ethernet;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Ipv4;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Ipv6;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.MdType1;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.NshMdType1Augment;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.NshMdType1AugmentBuilder;
@@ -41,11 +39,7 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntry;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntryBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntryKey;
-
-import io.fd.vpp.jvpp.VppBaseCallException;
-import io.fd.vpp.jvpp.nsh.dto.NshAddDelEntry;
-import io.fd.vpp.jvpp.nsh.dto.NshAddDelEntryReply;
-import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 
 public class NshEntryWriterCustomizerTest extends WriterCustomizerTest {
 
diff --git a/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/config/NshMapWriterCustomizerTest.java b/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/config/NshMapWriterCustomizerTest.java
index 30f4c488c..39297d427 100644
--- a/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/config/NshMapWriterCustomizerTest.java
+++ b/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/config/NshMapWriterCustomizerTest.java
@@ -20,32 +20,24 @@ import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 import static org.mockito.Matchers.any;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
 
 import io.fd.honeycomb.translate.vpp.util.NamingContext;
 import io.fd.honeycomb.translate.write.WriteFailedException;
 import io.fd.honeycomb.vpp.test.write.WriterCustomizerTest;
+import io.fd.vpp.jvpp.VppBaseCallException;
+import io.fd.vpp.jvpp.nsh.dto.NshAddDelMap;
+import io.fd.vpp.jvpp.nsh.dto.NshAddDelMapReply;
+import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
 import org.junit.Test;
 import org.mockito.Mock;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import io.fd.honeycomb.translate.MappingContext;
-
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VxlanGpe;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Swap;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Push;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Pop;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VxlanGpe;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshMaps;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshMapsBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMap;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMapBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMapKey;
-
-import io.fd.vpp.jvpp.VppBaseCallException;
-import io.fd.vpp.jvpp.nsh.dto.NshAddDelMap;
-import io.fd.vpp.jvpp.nsh.dto.NshAddDelMapReply;
-import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 
 public class NshMapWriterCustomizerTest extends WriterCustomizerTest {
 
diff --git a/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/init/VppNshInitializerTest.java b/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/init/VppNshInitializerTest.java
deleted file mode 100644
index 18b799cc5..000000000
--- a/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/init/VppNshInitializerTest.java
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (c) 2016 Intel and/or its affiliates.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.fd.honeycomb.vppnsh.impl.init;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.mockito.Mockito.mock;
-
-import com.google.common.collect.Lists;
-import java.util.stream.Collectors;
-
-import org.junit.Test;
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNsh;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshState;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshStateBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshEntries;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshEntriesBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.entries.NshEntry;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.entries.NshEntryBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshMaps;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshMapsBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.maps.NshMap;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.maps.NshMapBuilder;
-
-
-public class VppNshInitializerTest {
-    @Test
-    public void convert() throws Exception {
-
-        final VppNshInitializer initializer = new VppNshInitializer(mock(DataBroker.class));
-
-
-        /* mock VppNsh operational data */
-        final VppNshStateBuilder stateBuilder = new VppNshStateBuilder();
-
-        NshEntriesBuilder nshEntriesBuilder = new NshEntriesBuilder()
-                .setNshEntry(Lists.newArrayList());
-        stateBuilder.setNshEntries(nshEntriesBuilder.build());
-
-        NshMapsBuilder nshMapsBuilder = new NshMapsBuilder()
-                .setNshMap(Lists.newArrayList());
-        stateBuilder.setNshMaps(nshMapsBuilder.build());
-
-        final VppNshState state = stateBuilder.build();
-
-        /* Convert operational data to config data */
-        final VppNsh config = initializer.convert(state);
-
-        /* vefify the config data */
-        assertNotNull(config);
-        assertNotNull(config.getNshEntries());
-        assertNotNull(config.getNshMaps());
-    }
-
-}
diff --git a/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/oper/NshEntryReaderCustomizerTest.java b/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/oper/NshEntryReaderCustomizerTest.java
index 804346f75..2921d07dd 100644
--- a/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/oper/NshEntryReaderCustomizerTest.java
+++ b/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/oper/NshEntryReaderCustomizerTest.java
@@ -18,43 +18,31 @@ package io.fd.honeycomb.vppnsh.impl.oper;
 
 import static org.junit.Assert.assertEquals;
 import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyString;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
 
-import com.google.common.base.Optional;
 import com.google.common.collect.Lists;
 import io.fd.honeycomb.translate.read.ReadFailedException;
 import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
+import io.fd.honeycomb.translate.vpp.util.NamingContext;
 import io.fd.honeycomb.vpp.test.read.ListReaderCustomizerTest;
+import io.fd.vpp.jvpp.VppBaseCallException;
+import io.fd.vpp.jvpp.nsh.dto.NshEntryDetails;
+import io.fd.vpp.jvpp.nsh.dto.NshEntryDetailsReplyDump;
+import io.fd.vpp.jvpp.nsh.dto.NshEntryDump;
+import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
 import java.util.List;
 import org.junit.Test;
 import org.mockito.Mock;
-
-import io.fd.honeycomb.translate.vpp.util.NamingContext;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Ethernet;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Ipv4;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Ipv6;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.MdType1;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.NshMdType1StateAugment;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.NshMdType1StateAugmentBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshState;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshStateBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshEntries;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshEntriesBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.entries.NshEntry;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.entries.NshEntryBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.entries.NshEntryKey;
-
-import io.fd.vpp.jvpp.VppBaseCallException;
-import io.fd.vpp.jvpp.nsh.dto.NshEntryDetails;
-import io.fd.vpp.jvpp.nsh.dto.NshEntryDetailsReplyDump;
-import io.fd.vpp.jvpp.nsh.dto.NshEntryDump;
-import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 
 
 public class NshEntryReaderCustomizerTest extends
diff --git a/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/oper/NshMapReaderCustomizerTest.java b/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/oper/NshMapReaderCustomizerTest.java
index 8e2add961..868f851a3 100644
--- a/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/oper/NshMapReaderCustomizerTest.java
+++ b/nsh/impl/src/test/java/io/fd/honeycomb/vppnsh/impl/oper/NshMapReaderCustomizerTest.java
@@ -18,45 +18,30 @@ package io.fd.honeycomb.vppnsh.impl.oper;
 
 import static org.junit.Assert.assertEquals;
 import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyString;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
 
-import com.google.common.base.Optional;
 import com.google.common.collect.Lists;
 import io.fd.honeycomb.translate.read.ReadFailedException;
 import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
+import io.fd.honeycomb.translate.vpp.util.NamingContext;
 import io.fd.honeycomb.vpp.test.read.ListReaderCustomizerTest;
+import io.fd.vpp.jvpp.VppBaseCallException;
+import io.fd.vpp.jvpp.nsh.dto.NshMapDetails;
+import io.fd.vpp.jvpp.nsh.dto.NshMapDetailsReplyDump;
+import io.fd.vpp.jvpp.nsh.dto.NshMapDump;
+import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
 import java.util.List;
 import org.junit.Test;
 import org.mockito.Mock;
-
-import io.fd.honeycomb.translate.vpp.util.NamingContext;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VxlanGpe;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Swap;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Push;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.Pop;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshState;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshStateBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VxlanGpe;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshMaps;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.NshMapsBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.entries.NshEntryKey;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.maps.NshMap;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.maps.NshMapBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.state.nsh.maps.NshMapKey;
-
-import io.fd.vpp.jvpp.VppBaseCallException;
-import io.fd.vpp.jvpp.nsh.dto.NshEntryDetails;
-import io.fd.vpp.jvpp.nsh.dto.NshEntryDetailsReplyDump;
-import io.fd.vpp.jvpp.nsh.dto.NshEntryDump;
-import io.fd.vpp.jvpp.nsh.dto.NshMapDetails;
-import io.fd.vpp.jvpp.nsh.dto.NshMapDetailsReplyDump;
-import io.fd.vpp.jvpp.nsh.dto.NshMapDump;
-import io.fd.vpp.jvpp.nsh.future.FutureJVppNsh;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 
 
 public class NshMapReaderCustomizerTest extends