Update MRI projects for Aluminium
[netconf.git] / restconf / restconf-nb-bierman02 / src / main / java / org / opendaylight / netconf / sal / restconf / impl / RestconfImpl.java
index 978c7ff41541fdc72367c1b26230642a49a6146c..0eb122f960e431b9906cace3eb2edc98943a70fe 100644 (file)
@@ -5,12 +5,9 @@
  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
  * and is available at http://www.eclipse.org/legal/epl-v10.html
  */
-
 package org.opendaylight.netconf.sal.restconf.impl;
 
 import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.CharMatcher;
-import com.google.common.base.Optional;
 import com.google.common.base.Preconditions;
 import com.google.common.base.Predicates;
 import com.google.common.base.Splitter;
@@ -18,47 +15,51 @@ import com.google.common.base.Strings;
 import com.google.common.base.Throwables;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Iterables;
-import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
-import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.util.concurrent.FluentFuture;
 import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import java.net.URI;
-import java.text.ParseException;
 import java.time.Instant;
 import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeFormatterBuilder;
 import java.time.format.DateTimeParseException;
 import java.time.temporal.ChronoField;
 import java.time.temporal.TemporalAccessor;
+import java.util.AbstractMap.SimpleImmutableEntry;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Objects;
+import java.util.Optional;
 import java.util.Set;
 import java.util.concurrent.CancellationException;
 import java.util.concurrent.ExecutionException;
+import javax.inject.Inject;
+import javax.inject.Singleton;
+import javax.ws.rs.WebApplicationException;
 import javax.ws.rs.core.Context;
 import javax.ws.rs.core.Response;
 import javax.ws.rs.core.Response.ResponseBuilder;
 import javax.ws.rs.core.Response.Status;
 import javax.ws.rs.core.UriBuilder;
 import javax.ws.rs.core.UriInfo;
-import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.OptimisticLockFailedException;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
-import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
-import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
-import org.opendaylight.controller.md.sal.dom.api.DOMRpcImplementationNotAvailableException;
-import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
-import org.opendaylight.controller.md.sal.dom.api.DOMRpcService;
-import org.opendaylight.controller.md.sal.dom.spi.DefaultDOMRpcResult;
-import org.opendaylight.netconf.md.sal.rest.common.RestconfValidationUtils;
+import org.opendaylight.mdsal.common.api.CommitInfo;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.mdsal.common.api.OptimisticLockFailedException;
+import org.opendaylight.mdsal.common.api.TransactionCommitFailedException;
+import org.opendaylight.mdsal.dom.api.DOMMountPoint;
+import org.opendaylight.mdsal.dom.api.DOMRpcImplementationNotAvailableException;
+import org.opendaylight.mdsal.dom.api.DOMRpcResult;
+import org.opendaylight.mdsal.dom.api.DOMRpcService;
+import org.opendaylight.mdsal.dom.spi.DefaultDOMRpcResult;
 import org.opendaylight.netconf.sal.rest.api.Draft02;
 import org.opendaylight.netconf.sal.rest.api.RestconfService;
 import org.opendaylight.netconf.sal.streams.listeners.ListenerAdapter;
@@ -70,11 +71,15 @@ import org.opendaylight.restconf.common.context.NormalizedNodeContext;
 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
 import org.opendaylight.restconf.common.errors.RestconfError.ErrorTag;
 import org.opendaylight.restconf.common.errors.RestconfError.ErrorType;
+import org.opendaylight.restconf.common.patch.PatchContext;
+import org.opendaylight.restconf.common.patch.PatchStatusContext;
+import org.opendaylight.restconf.common.util.DataChangeScope;
+import org.opendaylight.restconf.common.util.OperationsResourceUtils;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.DateAndTime;
 import org.opendaylight.yang.gen.v1.urn.sal.restconf.event.subscription.rev140708.NotificationOutputTypeGrouping.NotificationOutputType;
 import org.opendaylight.yangtools.yang.common.QName;
 import org.opendaylight.yangtools.yang.common.QNameModule;
-import org.opendaylight.yangtools.yang.common.SimpleDateFormatUtil;
+import org.opendaylight.yangtools.yang.common.Revision;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
@@ -93,14 +98,14 @@ import org.opendaylight.yangtools.yang.data.api.schema.tree.ModifiedNodeDoesNotE
 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeAttrBuilder;
+import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.ListNodeBuilder;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeAttrBuilder;
+import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeBuilder;
 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafNodeBuilder;
 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
-import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
 import org.opendaylight.yangtools.yang.model.api.FeatureDefinition;
 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
@@ -111,14 +116,11 @@ import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
-import org.opendaylight.yangtools.yang.model.util.SimpleSchemaContext;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-public class RestconfImpl implements RestconfService {
-
-    private static final RestconfImpl INSTANCE = new RestconfImpl();
-
+@Singleton
+public final class RestconfImpl implements RestconfService {
     /**
      * Notifications are served on port 8181.
      */
@@ -146,19 +148,11 @@ public class RestconfImpl implements RestconfService {
 
     private static final String NETCONF_BASE_PAYLOAD_NAME = "data";
 
-    private static final QName NETCONF_BASE_QNAME = QName.create(QNameModule.create(URI.create(NETCONF_BASE), null),
+    private static final QName NETCONF_BASE_QNAME = QName.create(QNameModule.create(URI.create(NETCONF_BASE)),
         NETCONF_BASE_PAYLOAD_NAME).intern();
 
-    private static final QNameModule SAL_REMOTE_AUGMENT;
-
-    static {
-        try {
-            SAL_REMOTE_AUGMENT = QNameModule.create(NAMESPACE_EVENT_SUBSCRIPTION_AUGMENT,
-                SimpleDateFormatUtil.getRevisionFormat().parse("2014-07-08"));
-        } catch (final ParseException e) {
-            throw new ExceptionInInitializerError(e);
-        }
-    }
+    private static final QNameModule SAL_REMOTE_AUGMENT = QNameModule.create(NAMESPACE_EVENT_SUBSCRIPTION_AUGMENT,
+        Revision.of("2014-07-08"));
 
     private static final AugmentationIdentifier SAL_REMOTE_AUG_IDENTIFIER =
             new AugmentationIdentifier(ImmutableSet.of(
@@ -181,38 +175,38 @@ public class RestconfImpl implements RestconfService {
             .appendFraction(ChronoField.NANO_OF_SECOND, 0, 9, true)
             .appendOffset("+HH:MM", "Z").toFormatter();
 
-    private BrokerFacade broker;
+    private final BrokerFacade broker;
 
-    private ControllerContext controllerContext;
+    private final ControllerContext controllerContext;
 
-    public void setBroker(final BrokerFacade broker) {
+    @Inject
+    public RestconfImpl(final BrokerFacade broker, final ControllerContext controllerContext) {
         this.broker = broker;
-    }
-
-    public void setControllerContext(final ControllerContext controllerContext) {
         this.controllerContext = controllerContext;
     }
 
-    private RestconfImpl() {
-    }
-
-    public static RestconfImpl getInstance() {
-        return INSTANCE;
+    /**
+     * Factory method.
+     *
+     * @deprecated Just use {@link #RestconfImpl(BrokerFacade, ControllerContext)} constructor instead.
+     */
+    @Deprecated
+    public static RestconfImpl newInstance(final BrokerFacade broker, final ControllerContext controllerContext) {
+        return new RestconfImpl(broker, controllerContext);
     }
 
     @Override
     public NormalizedNodeContext getModules(final UriInfo uriInfo) {
-        final Set<Module> allModules = this.controllerContext.getAllModules();
-        final MapNode allModuleMap = makeModuleMapNode(allModules);
+        final MapNode allModuleMap = makeModuleMapNode(controllerContext.getAllModules());
 
-        final SchemaContext schemaContext = this.controllerContext.getGlobalSchema();
+        final EffectiveModelContext schemaContext = this.controllerContext.getGlobalSchema();
 
         final Module restconfModule = getRestconfModule();
         final DataSchemaNode modulesSchemaNode = this.controllerContext.getRestconfModuleRestConfSchemaNode(
                 restconfModule, Draft02.RestConfModule.MODULES_CONTAINER_SCHEMA_NODE);
         Preconditions.checkState(modulesSchemaNode instanceof ContainerSchemaNode);
 
-        final DataContainerNodeAttrBuilder<NodeIdentifier, ContainerNode> moduleContainerBuilder =
+        final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> moduleContainerBuilder =
                 Builders.containerBuilder((ContainerSchemaNode) modulesSchemaNode);
         moduleContainerBuilder.withChild(allModuleMap);
 
@@ -229,22 +223,21 @@ public class RestconfImpl implements RestconfService {
         if (!identifier.contains(ControllerContext.MOUNT)) {
             final String errMsg = "URI has bad format. If modules behind mount point should be showed,"
                     + " URI has to end with " + ControllerContext.MOUNT;
-            LOG.debug(errMsg + " for " + identifier);
+            LOG.debug("{} for {}", errMsg, identifier);
             throw new RestconfDocumentedException(errMsg, ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
         }
 
         final InstanceIdentifierContext<?> mountPointIdentifier =
                 this.controllerContext.toMountPointIdentifier(identifier);
         final DOMMountPoint mountPoint = mountPointIdentifier.getMountPoint();
-        final Set<Module> modules = this.controllerContext.getAllModules(mountPoint);
-        final MapNode mountPointModulesMap = makeModuleMapNode(modules);
+        final MapNode mountPointModulesMap = makeModuleMapNode(controllerContext.getAllModules(mountPoint));
 
         final Module restconfModule = getRestconfModule();
         final DataSchemaNode modulesSchemaNode = this.controllerContext.getRestconfModuleRestConfSchemaNode(
                 restconfModule, Draft02.RestConfModule.MODULES_CONTAINER_SCHEMA_NODE);
         Preconditions.checkState(modulesSchemaNode instanceof ContainerSchemaNode);
 
-        final DataContainerNodeAttrBuilder<NodeIdentifier, ContainerNode> moduleContainerBuilder =
+        final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> moduleContainerBuilder =
                 Builders.containerBuilder((ContainerSchemaNode) modulesSchemaNode);
         moduleContainerBuilder.withChild(mountPointModulesMap);
 
@@ -257,26 +250,26 @@ public class RestconfImpl implements RestconfService {
     @Override
     public NormalizedNodeContext getModule(final String identifier, final UriInfo uriInfo) {
         Preconditions.checkNotNull(identifier);
-        final QName moduleNameAndRevision = getModuleNameAndRevision(identifier);
+        final Entry<String, Revision> nameRev = getModuleNameAndRevision(identifier);
         Module module = null;
         DOMMountPoint mountPoint = null;
-        final SchemaContext schemaContext;
+        final EffectiveModelContext schemaContext;
         if (identifier.contains(ControllerContext.MOUNT)) {
             final InstanceIdentifierContext<?> mountPointIdentifier =
                     this.controllerContext.toMountPointIdentifier(identifier);
             mountPoint = mountPointIdentifier.getMountPoint();
-            module = this.controllerContext.findModuleByNameAndRevision(mountPoint, moduleNameAndRevision);
-            schemaContext = mountPoint.getSchemaContext();
+            module = this.controllerContext.findModuleByNameAndRevision(mountPoint, nameRev.getKey(),
+                nameRev.getValue());
+            schemaContext = mountPoint.getEffectiveModelContext();
         } else {
-            module = this.controllerContext.findModuleByNameAndRevision(moduleNameAndRevision);
+            module = this.controllerContext.findModuleByNameAndRevision(nameRev.getKey(), nameRev.getValue());
             schemaContext = this.controllerContext.getGlobalSchema();
         }
 
         if (module == null) {
-            final String errMsg = "Module with name '" + moduleNameAndRevision.getLocalName() + "' and revision '"
-                    + moduleNameAndRevision.getRevision() + "' was not found.";
-            LOG.debug(errMsg);
-            throw new RestconfDocumentedException(errMsg, ErrorType.PROTOCOL, ErrorTag.UNKNOWN_ELEMENT);
+            LOG.debug("Module with name '{}' and revision '{}' was not found.", nameRev.getKey(), nameRev.getValue());
+            throw new RestconfDocumentedException("Module with name '" + nameRev.getKey() + "' and revision '"
+                    + nameRev.getValue() + "' was not found.", ErrorType.PROTOCOL, ErrorTag.UNKNOWN_ELEMENT);
         }
 
         final Module restconfModule = getRestconfModule();
@@ -294,7 +287,7 @@ public class RestconfImpl implements RestconfService {
 
     @Override
     public NormalizedNodeContext getAvailableStreams(final UriInfo uriInfo) {
-        final SchemaContext schemaContext = this.controllerContext.getGlobalSchema();
+        final EffectiveModelContext schemaContext = this.controllerContext.getGlobalSchema();
         final Set<String> availableStreams = Notificator.getStreamNames();
         final Module restconfModule = getRestconfModule();
         final DataSchemaNode streamSchemaNode = this.controllerContext
@@ -312,7 +305,7 @@ public class RestconfImpl implements RestconfService {
                 restconfModule, Draft02.RestConfModule.STREAMS_CONTAINER_SCHEMA_NODE);
         Preconditions.checkState(streamsContainerSchemaNode instanceof ContainerSchemaNode);
 
-        final DataContainerNodeAttrBuilder<NodeIdentifier, ContainerNode> streamsContainerBuilder =
+        final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> streamsContainerBuilder =
                 Builders.containerBuilder((ContainerSchemaNode) streamsContainerSchemaNode);
         streamsContainerBuilder.withChild(listStreamsBuilder.build());
 
@@ -323,75 +316,22 @@ public class RestconfImpl implements RestconfService {
 
     @Override
     public NormalizedNodeContext getOperations(final UriInfo uriInfo) {
-        final Set<Module> allModules = this.controllerContext.getAllModules();
-        return operationsFromModulesToNormalizedContext(allModules, null);
+        return OperationsResourceUtils.contextForModelContext(controllerContext.getGlobalSchema(), null);
     }
 
     @Override
     public NormalizedNodeContext getOperations(final String identifier, final UriInfo uriInfo) {
-        Set<Module> modules = null;
-        DOMMountPoint mountPoint = null;
-        if (identifier.contains(ControllerContext.MOUNT)) {
-            final InstanceIdentifierContext<?> mountPointIdentifier =
-                    this.controllerContext.toMountPointIdentifier(identifier);
-            mountPoint = mountPointIdentifier.getMountPoint();
-            modules = this.controllerContext.getAllModules(mountPoint);
-
-        } else {
-            final String errMsg =
-                    "URI has bad format. If operations behind mount point should be showed, URI has to " + "end with ";
-            LOG.debug(errMsg + ControllerContext.MOUNT + " for " + identifier);
-            throw new RestconfDocumentedException(errMsg + ControllerContext.MOUNT, ErrorType.PROTOCOL,
-                    ErrorTag.INVALID_VALUE);
-        }
-
-        return operationsFromModulesToNormalizedContext(modules, mountPoint);
-    }
-
-    /**
-     * Special case only for GET restconf/operations use (since moment of
-     * pre-Beryllium Yang parser and Yang model API removal). The method is
-     * creating fake schema context with fake module and fake data by use own
-     * implementations of schema nodes and module.
-     *
-     * @param modules
-     *            set of modules for get RPCs from every module
-     * @param mountPoint
-     *            mount point, if in use otherwise null
-     * @return {@link NormalizedNodeContext}
-     */
-    private static NormalizedNodeContext operationsFromModulesToNormalizedContext(final Set<Module> modules,
-            final DOMMountPoint mountPoint) {
-
-        final Collection<Module> neededModules = new ArrayList<>(modules.size());
-        final ArrayList<LeafSchemaNode> fakeRpcSchema = new ArrayList<>();
-
-        for (final Module m : modules) {
-            final Set<RpcDefinition> rpcs = m.getRpcs();
-            if (!rpcs.isEmpty()) {
-                neededModules.add(m);
-
-                fakeRpcSchema.ensureCapacity(fakeRpcSchema.size() + rpcs.size());
-                rpcs.forEach(rpc -> fakeRpcSchema.add(new FakeLeafSchemaNode(rpc.getQName())));
-            }
-        }
-
-        final ContainerSchemaNode fakeCont = new FakeContainerSchemaNode(fakeRpcSchema);
-        final DataContainerNodeAttrBuilder<NodeIdentifier, ContainerNode> containerBuilder =
-                Builders.containerBuilder(fakeCont);
-
-        for (final LeafSchemaNode leaf : fakeRpcSchema) {
-            containerBuilder.withChild(Builders.leafBuilder(leaf).build());
+        if (!identifier.contains(ControllerContext.MOUNT)) {
+            final String errMsg = "URI has bad format. If operations behind mount point should be showed, URI has to "
+                    + " end with " +  ControllerContext.MOUNT;
+            LOG.debug("{} for {}", errMsg, identifier);
+            throw new RestconfDocumentedException(errMsg, ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
         }
 
-        final Collection<Module> fakeModules = new ArrayList<>(neededModules.size() + 1);
-        neededModules.forEach(imp -> fakeModules.add(new FakeImportedModule(imp)));
-        fakeModules.add(new FakeRestconfModule(neededModules, fakeCont));
-
-        final SchemaContext fakeSchemaCtx = SimpleSchemaContext.forModules(ImmutableSet.copyOf(fakeModules));
-        final InstanceIdentifierContext<ContainerSchemaNode> instanceIdentifierContext =
-                new InstanceIdentifierContext<>(null, fakeCont, mountPoint, fakeSchemaCtx);
-        return new NormalizedNodeContext(instanceIdentifierContext, containerBuilder.build());
+        final InstanceIdentifierContext<?> mountPointIdentifier =
+                this.controllerContext.toMountPointIdentifier(identifier);
+        final DOMMountPoint mountPoint = mountPointIdentifier.getMountPoint();
+        return OperationsResourceUtils.contextForModelContext(mountPoint.getSchemaContext(), mountPoint);
     }
 
     private Module getRestconfModule() {
@@ -405,7 +345,7 @@ public class RestconfImpl implements RestconfService {
         return restconfModule;
     }
 
-    private static QName getModuleNameAndRevision(final String identifier) {
+    private static Entry<String, Revision> getModuleNameAndRevision(final String identifier) {
         final int mountIndex = identifier.indexOf(ControllerContext.MOUNT);
         String moduleNameAndRevision = "";
         if (mountIndex >= 0) {
@@ -414,24 +354,21 @@ public class RestconfImpl implements RestconfService {
             moduleNameAndRevision = identifier;
         }
 
-        final Splitter splitter = Splitter.on("/").omitEmptyStrings();
-        final Iterable<String> split = splitter.split(moduleNameAndRevision);
-        final List<String> pathArgs = Lists.<String>newArrayList(split);
+        final Splitter splitter = Splitter.on('/').omitEmptyStrings();
+        final List<String> pathArgs = splitter.splitToList(moduleNameAndRevision);
         if (pathArgs.size() < 2) {
-            LOG.debug("URI has bad format. It should be \'moduleName/yyyy-MM-dd\' " + identifier);
+            LOG.debug("URI has bad format. It should be \'moduleName/yyyy-MM-dd\' {}", identifier);
             throw new RestconfDocumentedException(
                     "URI has bad format. End of URI should be in format \'moduleName/yyyy-MM-dd\'", ErrorType.PROTOCOL,
                     ErrorTag.INVALID_VALUE);
         }
 
         try {
-            final String moduleName = pathArgs.get(0);
-            final String revision = pathArgs.get(1);
-            return QName.create(null, SimpleDateFormatUtil.getRevisionFormat().parse(revision), moduleName);
-        } catch (final ParseException e) {
-            LOG.debug("URI has bad format. It should be \'moduleName/yyyy-MM-dd\' " + identifier);
+            return new SimpleImmutableEntry<>(pathArgs.get(0), Revision.of(pathArgs.get(1)));
+        } catch (final DateTimeParseException e) {
+            LOG.debug("URI has bad format. It should be \'moduleName/yyyy-MM-dd\' {}", identifier);
             throw new RestconfDocumentedException("URI has bad format. It should be \'moduleName/yyyy-MM-dd\'",
-                    ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
+                    ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, e);
         }
     }
 
@@ -443,11 +380,16 @@ public class RestconfImpl implements RestconfService {
     @Override
     public NormalizedNodeContext invokeRpc(final String identifier, final NormalizedNodeContext payload,
             final UriInfo uriInfo) {
+        if (payload == null) {
+            // no payload specified, reroute this to no payload invokeRpc implementation
+            return invokeRpc(identifier, uriInfo);
+        }
+
         final SchemaPath type = payload.getInstanceIdentifierContext().getSchemaNode().getPath();
         final URI namespace = payload.getInstanceIdentifierContext().getSchemaNode().getQName().getNamespace();
-        final CheckedFuture<DOMRpcResult, DOMRpcException> response;
+        final ListenableFuture<? extends DOMRpcResult> response;
         final DOMMountPoint mountPoint = payload.getInstanceIdentifierContext().getMountPoint();
-        final SchemaContext schemaContext;
+        final EffectiveModelContext schemaContext;
 
         if (mountPoint != null) {
             final Optional<DOMRpcService> mountRpcServices = mountPoint.getService(DOMRpcService.class);
@@ -455,7 +397,7 @@ public class RestconfImpl implements RestconfService {
                 LOG.debug("Error: Rpc service is missing.");
                 throw new RestconfDocumentedException("Rpc service is missing.");
             }
-            schemaContext = mountPoint.getSchemaContext();
+            schemaContext = mountPoint.getEffectiveModelContext();
             response = mountRpcServices.get().invokeRpc(type, payload.getData());
         } else {
             if (namespace.toString().equals(SAL_REMOTE_NAMESPACE)) {
@@ -477,68 +419,70 @@ public class RestconfImpl implements RestconfService {
         final DOMRpcResult result = checkRpcResponse(response);
 
         RpcDefinition resultNodeSchema = null;
-        final NormalizedNode<?, ?> resultData = result.getResult();
+        final NormalizedNode<?, ?> resultData;
         if (result != null && result.getResult() != null) {
+            resultData = result.getResult();
             resultNodeSchema = (RpcDefinition) payload.getInstanceIdentifierContext().getSchemaNode();
+        } else {
+            resultData = null;
         }
 
-        return new NormalizedNodeContext(
-                new InstanceIdentifierContext<>(null, resultNodeSchema, mountPoint, schemaContext),
-                resultData, QueryParametersParser.parseWriterParameters(uriInfo));
-    }
-
-    @Override
-    public NormalizedNodeContext invokeRpc(final String identifier, final String noPayload, final UriInfo uriInfo) {
-        if (noPayload != null && !CharMatcher.WHITESPACE.matchesAllOf(noPayload)) {
-            throw new RestconfDocumentedException("Content must be empty.", ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
+        if (resultData != null && ((ContainerNode) resultData).getValue().isEmpty()) {
+            throw new WebApplicationException(Response.Status.NO_CONTENT);
+        } else {
+            return new NormalizedNodeContext(
+                    new InstanceIdentifierContext<>(null, resultNodeSchema, mountPoint, schemaContext),
+                    resultData, QueryParametersParser.parseWriterParameters(uriInfo));
         }
+    }
 
-        String identifierEncoded = null;
-        DOMMountPoint mountPoint = null;
-        final SchemaContext schemaContext;
+    @SuppressFBWarnings(value = "NP_LOAD_OF_KNOWN_NULL_VALUE",
+            justification = "Looks like a false positive, see below FIXME")
+    private NormalizedNodeContext invokeRpc(final String identifier, final UriInfo uriInfo) {
+        final DOMMountPoint mountPoint;
+        final String identifierEncoded;
+        final EffectiveModelContext schemaContext;
         if (identifier.contains(ControllerContext.MOUNT)) {
             // mounted RPC call - look up mount instance.
             final InstanceIdentifierContext<?> mountPointId = this.controllerContext.toMountPointIdentifier(identifier);
             mountPoint = mountPointId.getMountPoint();
-            schemaContext = mountPoint.getSchemaContext();
+            schemaContext = mountPoint.getEffectiveModelContext();
             final int startOfRemoteRpcName =
                     identifier.lastIndexOf(ControllerContext.MOUNT) + ControllerContext.MOUNT.length() + 1;
             final String remoteRpcName = identifier.substring(startOfRemoteRpcName);
             identifierEncoded = remoteRpcName;
 
-        } else if (identifier.indexOf("/") != CHAR_NOT_FOUND) {
-            final String slashErrorMsg = String.format(
-                    "Identifier %n%s%ncan\'t contain slash "
-                            + "character (/).%nIf slash is part of identifier name then use %%2F placeholder.",
-                    identifier);
-            LOG.debug(slashErrorMsg);
-            throw new RestconfDocumentedException(slashErrorMsg, ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
-        } else {
+        } else if (identifier.indexOf('/') == CHAR_NOT_FOUND) {
             identifierEncoded = identifier;
+            mountPoint = null;
             schemaContext = this.controllerContext.getGlobalSchema();
+        } else {
+            LOG.debug("Identifier {} cannot contain slash character (/).", identifier);
+            throw new RestconfDocumentedException(String.format("Identifier %n%s%ncan\'t contain slash character (/).%n"
+                    + "If slash is part of identifier name then use %%2F placeholder.", identifier), ErrorType.PROTOCOL,
+                ErrorTag.INVALID_VALUE);
         }
 
-        final String identifierDecoded = this.controllerContext.urlPathArgDecode(identifierEncoded);
-
-        RpcDefinition rpc = null;
+        final String identifierDecoded = ControllerContext.urlPathArgDecode(identifierEncoded);
+        final RpcDefinition rpc;
         if (mountPoint == null) {
-            rpc = this.controllerContext.getRpcDefinition(identifierDecoded, null);
+            rpc = this.controllerContext.getRpcDefinition(identifierDecoded);
         } else {
             rpc = findRpc(mountPoint.getSchemaContext(), identifierDecoded);
         }
 
         if (rpc == null) {
-            LOG.debug("RPC " + identifierDecoded + " does not exist.");
+            LOG.debug("RPC {} does not exist.", identifierDecoded);
             throw new RestconfDocumentedException("RPC does not exist.", ErrorType.RPC, ErrorTag.UNKNOWN_ELEMENT);
         }
 
         if (!rpc.getInput().getChildNodes().isEmpty()) {
-            LOG.debug("RPC " + rpc + " does not need input value.");
-            // FIXME : find a correct Error from specification
-            throw new IllegalStateException("RPC " + rpc + " does'n need input value!");
+            LOG.debug("No input specified for RPC {} with an input section", rpc);
+            throw new RestconfDocumentedException("No input specified for RPC " + rpc
+                    + " with an input section defined", ErrorType.RPC, ErrorTag.MISSING_ELEMENT);
         }
 
-        final CheckedFuture<DOMRpcResult, DOMRpcException> response;
+        final ListenableFuture<? extends DOMRpcResult> response;
         if (mountPoint != null) {
             final Optional<DOMRpcService> mountRpcServices = mountPoint.getService(DOMRpcService.class);
             if (!mountRpcServices.isPresent()) {
@@ -549,51 +493,60 @@ public class RestconfImpl implements RestconfService {
             response = this.broker.invokeRpc(rpc.getPath(), null);
         }
 
-        final DOMRpcResult result = checkRpcResponse(response);
+        final NormalizedNode<?, ?> result = checkRpcResponse(response).getResult();
+        if (result != null && ((ContainerNode) result).getValue().isEmpty()) {
+            throw new WebApplicationException(Response.Status.NO_CONTENT);
+        }
 
-        return new NormalizedNodeContext(new InstanceIdentifierContext<>(null, rpc, mountPoint, schemaContext),
-                result.getResult(), QueryParametersParser.parseWriterParameters(uriInfo));
+        // FIXME: in reference to the above @SupressFBWarnings: "mountPoint" reference here trips up SpotBugs, as it
+        //        thinks it can only ever be null. Except it can very much be non-null. The core problem is the horrible
+        //        structure of this code where we have a sh*tload of checks for mountpoint above and all over the
+        //        codebase where all that difference should have been properly encapsulated.
+        //
+        //        This is legacy code, so if anybody cares to do that refactor, feel free to contribute, but I am not
+        //        doing that work.
+        return new NormalizedNodeContext(new InstanceIdentifierContext<>(null, rpc, mountPoint, schemaContext), result,
+            QueryParametersParser.parseWriterParameters(uriInfo));
     }
 
-    private static DOMRpcResult checkRpcResponse(final CheckedFuture<DOMRpcResult, DOMRpcException> response) {
+    @SuppressWarnings("checkstyle:avoidHidingCauseException")
+    private static DOMRpcResult checkRpcResponse(final ListenableFuture<? extends DOMRpcResult> response) {
         if (response == null) {
             return null;
         }
         try {
             final DOMRpcResult retValue = response.get();
-            if (retValue.getErrors() == null || retValue.getErrors().isEmpty()) {
+            if (retValue.getErrors().isEmpty()) {
                 return retValue;
             }
-            LOG.debug("RpcError message", retValue.getErrors());
+            LOG.debug("RpcError message {}", retValue.getErrors());
             throw new RestconfDocumentedException("RpcError message", null, retValue.getErrors());
         } catch (final InterruptedException e) {
             final String errMsg = "The operation was interrupted while executing and did not complete.";
-            LOG.debug("Rpc Interrupt - " + errMsg, e);
-            throw new RestconfDocumentedException(errMsg, ErrorType.RPC, ErrorTag.PARTIAL_OPERATION);
+            LOG.debug("Rpc Interrupt - {}", errMsg, e);
+            throw new RestconfDocumentedException(errMsg, ErrorType.RPC, ErrorTag.PARTIAL_OPERATION, e);
         } catch (final ExecutionException e) {
             LOG.debug("Execution RpcError: ", e);
             Throwable cause = e.getCause();
-            if (cause != null) {
-                while (cause.getCause() != null) {
-                    cause = cause.getCause();
-                }
-
-                if (cause instanceof IllegalArgumentException) {
-                    throw new RestconfDocumentedException(cause.getMessage(), ErrorType.PROTOCOL,
-                            ErrorTag.INVALID_VALUE);
-                } else if (cause instanceof DOMRpcImplementationNotAvailableException) {
-                    throw new RestconfDocumentedException(cause.getMessage(), ErrorType.APPLICATION,
-                            ErrorTag.OPERATION_NOT_SUPPORTED);
-                }
+            if (cause == null) {
                 throw new RestconfDocumentedException("The operation encountered an unexpected error while executing.",
-                        cause);
-            } else {
-                throw new RestconfDocumentedException("The operation encountered an unexpected error while executing.",
-                        e);
+                    e);
+            }
+            while (cause.getCause() != null) {
+                cause = cause.getCause();
+            }
+
+            if (cause instanceof IllegalArgumentException) {
+                throw new RestconfDocumentedException(cause.getMessage(), ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
+            } else if (cause instanceof DOMRpcImplementationNotAvailableException) {
+                throw new RestconfDocumentedException(cause.getMessage(), ErrorType.APPLICATION,
+                    ErrorTag.OPERATION_NOT_SUPPORTED);
             }
+            throw new RestconfDocumentedException("The operation encountered an unexpected error while executing.",
+                cause);
         } catch (final CancellationException e) {
             final String errMsg = "The operation was cancelled while executing.";
-            LOG.debug("Cancel RpcExecution: " + errMsg, e);
+            LOG.debug("Cancel RpcExecution: {}", errMsg, e);
             throw new RestconfDocumentedException(errMsg, ErrorType.RPC, ErrorTag.PARTIAL_OPERATION);
         }
     }
@@ -608,18 +561,18 @@ public class RestconfImpl implements RestconfService {
         }
     }
 
-    private CheckedFuture<DOMRpcResult, DOMRpcException>
-            invokeSalRemoteRpcSubscribeRPC(final NormalizedNodeContext payload) {
+    private ListenableFuture<DOMRpcResult> invokeSalRemoteRpcSubscribeRPC(final NormalizedNodeContext payload) {
         final ContainerNode value = (ContainerNode) payload.getData();
         final QName rpcQName = payload.getInstanceIdentifierContext().getSchemaNode().getQName();
-        final Optional<DataContainerChild<? extends PathArgument, ?>> path = value.getChild(new NodeIdentifier(
-                QName.create(payload.getInstanceIdentifierContext().getSchemaNode().getQName(), "path")));
+        final Optional<DataContainerChild<? extends PathArgument, ?>> path = value.getChild(
+            new NodeIdentifier(QName.create(payload.getInstanceIdentifierContext().getSchemaNode().getQName(),
+                "path")));
         final Object pathValue = path.isPresent() ? path.get().getValue() : null;
 
         if (!(pathValue instanceof YangInstanceIdentifier)) {
-            final String errMsg = "Instance identifier was not normalized correctly ";
-            LOG.debug(errMsg + rpcQName);
-            throw new RestconfDocumentedException(errMsg, ErrorType.APPLICATION, ErrorTag.OPERATION_FAILED);
+            LOG.debug("Instance identifier {} was not normalized correctly", rpcQName);
+            throw new RestconfDocumentedException("Instance identifier was not normalized correctly",
+                ErrorType.APPLICATION, ErrorTag.OPERATION_FAILED);
         }
 
         final YangInstanceIdentifier pathIdentifier = (YangInstanceIdentifier) pathValue;
@@ -644,9 +597,10 @@ public class RestconfImpl implements RestconfService {
         }
 
         if (Strings.isNullOrEmpty(streamName)) {
-            final String errMsg = "Path is empty or contains value node which is not Container or List build-in type.";
-            LOG.debug(errMsg + pathIdentifier);
-            throw new RestconfDocumentedException(errMsg, ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
+            LOG.debug("Path is empty or contains value node which is not Container or List built-in type at {}",
+                pathIdentifier);
+            throw new RestconfDocumentedException("Path is empty or contains value node which is not Container or List "
+                    + "built-in type.", ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
         }
 
         final QName outputQname = QName.create(rpcQName, "output");
@@ -657,20 +611,18 @@ public class RestconfImpl implements RestconfService {
                         .withChild(ImmutableNodes.leafNode(streamNameQname, streamName)).build();
 
         if (!Notificator.existListenerFor(streamName)) {
-            Notificator.createListener(pathIdentifier, streamName, outputType);
+            Notificator.createListener(pathIdentifier, streamName, outputType, controllerContext);
         }
 
-        final DOMRpcResult defaultDOMRpcResult = new DefaultDOMRpcResult(output);
-
-        return Futures.immediateCheckedFuture(defaultDOMRpcResult);
+        return Futures.immediateFuture(new DefaultDOMRpcResult(output));
     }
 
     private static RpcDefinition findRpc(final SchemaContext schemaContext, final String identifierDecoded) {
         final String[] splittedIdentifier = identifierDecoded.split(":");
         if (splittedIdentifier.length != 2) {
-            final String errMsg = identifierDecoded + " couldn't be splitted to 2 parts (module:rpc name)";
-            LOG.debug(errMsg);
-            throw new RestconfDocumentedException(errMsg, ErrorType.APPLICATION, ErrorTag.INVALID_VALUE);
+            LOG.debug("{} could not be split to 2 parts (module:rpc name)", identifierDecoded);
+            throw new RestconfDocumentedException(identifierDecoded + " could not be split to 2 parts "
+                    + "(module:rpc name)", ErrorType.APPLICATION, ErrorTag.INVALID_VALUE);
         }
         for (final Module module : schemaContext.getModules()) {
             if (module.getName().equals(splittedIdentifier[0])) {
@@ -706,11 +658,11 @@ public class RestconfImpl implements RestconfService {
         }
         boolean tagged = false;
         if (withDefaUsed) {
-            if (withDefa.equals("report-all-tagged")) {
+            if ("report-all-tagged".equals(withDefa)) {
                 tagged = true;
                 withDefa = null;
             }
-            if (withDefa.equals("report-all")) {
+            if ("report-all".equals(withDefa)) {
                 withDefa = null;
             }
         }
@@ -725,10 +677,7 @@ public class RestconfImpl implements RestconfService {
             data = this.broker.readConfigurationData(normalizedII, withDefa);
         }
         if (data == null) {
-            final String errMsg =
-                    "Request could not be completed because the relevant data model content does not exist ";
-            LOG.debug(errMsg + identifier);
-            throw new RestconfDocumentedException(errMsg, ErrorType.APPLICATION, ErrorTag.DATA_MISSING);
+            throw dataMissing(identifier);
         }
         return new NormalizedNodeContext(iiWithData, data,
                 QueryParametersParser.parseWriterParameters(uriInfo, tagged));
@@ -746,14 +695,18 @@ public class RestconfImpl implements RestconfService {
             data = this.broker.readOperationalData(normalizedII);
         }
         if (data == null) {
-            final String errMsg =
-                    "Request could not be completed because the relevant data model content does not exist ";
-            LOG.debug(errMsg + identifier);
-            throw new RestconfDocumentedException(errMsg, ErrorType.APPLICATION, ErrorTag.DATA_MISSING);
+            throw dataMissing(identifier);
         }
         return new NormalizedNodeContext(iiWithData, data, QueryParametersParser.parseWriterParameters(uriInfo));
     }
 
+    private static RestconfDocumentedException dataMissing(final String identifier) {
+        LOG.debug("Request could not be completed because the relevant data model content does not exist {}",
+            identifier);
+        return new RestconfDocumentedException("Request could not be completed because the relevant data model content "
+            + "does not exist", ErrorType.APPLICATION, ErrorTag.DATA_MISSING);
+    }
+
     @Override
     public Response updateConfigurationData(final String identifier, final NormalizedNodeContext payload,
             final UriInfo uriInfo) {
@@ -833,21 +786,28 @@ public class RestconfImpl implements RestconfService {
             }
 
             try {
-                result.getFutureOfPutData().checkedGet();
-                return Response.status(result.getStatus()).build();
-            } catch (final TransactionCommitFailedException e) {
-                if (e instanceof OptimisticLockFailedException) {
+                result.getFutureOfPutData().get();
+            } catch (final InterruptedException e) {
+                LOG.debug("Update failed for {}", identifier, e);
+                throw new RestconfDocumentedException(e.getMessage(), e);
+            } catch (final ExecutionException e) {
+                final TransactionCommitFailedException failure = Throwables.getCauseAs(e,
+                    TransactionCommitFailedException.class);
+                if (failure instanceof OptimisticLockFailedException) {
                     if (--tries <= 0) {
-                        LOG.debug("Got OptimisticLockFailedException on last try - failing " + identifier);
-                        throw new RestconfDocumentedException(e.getMessage(), e, e.getErrorList());
+                        LOG.debug("Got OptimisticLockFailedException on last try - failing {}", identifier);
+                        throw new RestconfDocumentedException(e.getMessage(), e, failure.getErrorList());
                     }
 
-                    LOG.debug("Got OptimisticLockFailedException - trying again " + identifier);
-                } else {
-                    LOG.debug("Update failed for " + identifier, e);
-                    throw new RestconfDocumentedException(e.getMessage(), e, e.getErrorList());
+                    LOG.debug("Got OptimisticLockFailedException - trying again {}", identifier);
+                    continue;
                 }
+
+                LOG.debug("Update failed for {}", identifier, e);
+                throw RestconfDocumentedException.decodeAndThrow(e.getMessage(), failure);
             }
+
+            return Response.status(result.getStatus()).build();
         }
     }
 
@@ -891,8 +851,7 @@ public class RestconfImpl implements RestconfService {
         if (schemaNode instanceof ListSchemaNode) {
             final List<QName> keyDefinitions = ((ListSchemaNode) schemaNode).getKeyDefinition();
             if (lastPathArgument instanceof NodeIdentifierWithPredicates && data instanceof MapEntryNode) {
-                final Map<QName, Object> uriKeyValues =
-                        ((NodeIdentifierWithPredicates) lastPathArgument).getKeyValues();
+                final Map<QName, Object> uriKeyValues = ((NodeIdentifierWithPredicates) lastPathArgument).asMap();
                 isEqualUriAndPayloadKeyValues(uriKeyValues, (MapEntryNode) data, keyDefinitions);
             }
         }
@@ -904,12 +863,12 @@ public class RestconfImpl implements RestconfService {
 
         final Map<QName, Object> mutableCopyUriKeyValues = Maps.newHashMap(uriKeyValues);
         for (final QName keyDefinition : keyDefinitions) {
-            final Object uriKeyValue = mutableCopyUriKeyValues.remove(keyDefinition);
-            // should be caught during parsing URI to InstanceIdentifier
-            RestconfValidationUtils.checkDocumentedError(uriKeyValue != null, ErrorType.PROTOCOL, ErrorTag.DATA_MISSING,
-                    "Missing key " + keyDefinition + " in URI.");
+            final Object uriKeyValue = RestconfDocumentedException.throwIfNull(
+                // should be caught during parsing URI to InstanceIdentifier
+                mutableCopyUriKeyValues.remove(keyDefinition), ErrorType.PROTOCOL, ErrorTag.DATA_MISSING,
+                "Missing key %s in URI.", keyDefinition);
 
-            final Object dataKeyValue = payload.getIdentifier().getKeyValues().get(keyDefinition);
+            final Object dataKeyValue = payload.getIdentifier().getValue(keyDefinition);
 
             if (!Objects.deepEquals(uriKeyValue, dataKeyValue)) {
                 final String errMsg = "The value '" + uriKeyValue + "' for key '" + keyDefinition.getLocalName()
@@ -940,26 +899,28 @@ public class RestconfImpl implements RestconfService {
         String insert = null;
         String point = null;
 
-        for (final Entry<String, List<String>> entry : uriInfo.getQueryParameters().entrySet()) {
-            switch (entry.getKey()) {
-                case "insert":
-                    if (!insertUsed) {
-                        insertUsed = true;
-                        insert = entry.getValue().iterator().next();
-                    } else {
-                        throw new RestconfDocumentedException("Insert parameter can be used only once.");
-                    }
-                    break;
-                case "point":
-                    if (!pointUsed) {
-                        pointUsed = true;
-                        point = entry.getValue().iterator().next();
-                    } else {
-                        throw new RestconfDocumentedException("Point parameter can be used only once.");
-                    }
-                    break;
-                default:
-                    throw new RestconfDocumentedException("Bad parameter for post: " + entry.getKey());
+        if (uriInfo != null) {
+            for (final Entry<String, List<String>> entry : uriInfo.getQueryParameters().entrySet()) {
+                switch (entry.getKey()) {
+                    case "insert":
+                        if (!insertUsed) {
+                            insertUsed = true;
+                            insert = entry.getValue().iterator().next();
+                        } else {
+                            throw new RestconfDocumentedException("Insert parameter can be used only once.");
+                        }
+                        break;
+                    case "point":
+                        if (!pointUsed) {
+                            pointUsed = true;
+                            point = entry.getValue().iterator().next();
+                        } else {
+                            throw new RestconfDocumentedException("Point parameter can be used only once.");
+                        }
+                        break;
+                    default:
+                        throw new RestconfDocumentedException("Bad parameter for post: " + entry.getKey());
+                }
             }
         }
 
@@ -971,7 +932,7 @@ public class RestconfImpl implements RestconfService {
                     "Point parameter can be used only with 'after' or 'before' values of Insert parameter.");
         }
 
-        CheckedFuture<Void, TransactionCommitFailedException> future;
+        FluentFuture<? extends CommitInfo> future;
         if (mountPoint != null) {
             future = this.broker.commitConfigurationDataPost(mountPoint, normalizedII, payload.getData(), insert,
                     point);
@@ -981,12 +942,14 @@ public class RestconfImpl implements RestconfService {
         }
 
         try {
-            future.checkedGet();
-        } catch (final RestconfDocumentedException e) {
-            throw e;
-        } catch (final TransactionCommitFailedException e) {
-            LOG.info("Error creating data " + (uriInfo != null ? uriInfo.getPath() : ""), e);
-            throw new RestconfDocumentedException(e.getMessage(), e, e.getErrorList());
+            future.get();
+        } catch (final InterruptedException e) {
+            LOG.info("Error creating data {}", uriInfo != null ? uriInfo.getPath() : "", e);
+            throw new RestconfDocumentedException(e.getMessage(), e);
+        } catch (final ExecutionException e) {
+            LOG.info("Error creating data {}", uriInfo != null ? uriInfo.getPath() : "", e);
+            throw RestconfDocumentedException.decodeAndThrow(e.getMessage(), Throwables.getCauseAs(e,
+                TransactionCommitFailedException.class));
         }
 
         LOG.trace("Successfuly created data.");
@@ -1000,37 +963,6 @@ public class RestconfImpl implements RestconfService {
         return responseBuilder.build();
     }
 
-    // FIXME create RestconfIdetifierHelper and move this method there
-    private static YangInstanceIdentifier checkConsistencyOfNormalizedNodeContext(final NormalizedNodeContext payload) {
-        Preconditions.checkArgument(payload != null);
-        Preconditions.checkArgument(payload.getData() != null);
-        Preconditions.checkArgument(payload.getData().getNodeType() != null);
-        Preconditions.checkArgument(payload.getInstanceIdentifierContext() != null);
-        Preconditions.checkArgument(payload.getInstanceIdentifierContext().getInstanceIdentifier() != null);
-
-        final QName payloadNodeQname = payload.getData().getNodeType();
-        final YangInstanceIdentifier yangIdent = payload.getInstanceIdentifierContext().getInstanceIdentifier();
-        if (payloadNodeQname.compareTo(yangIdent.getLastPathArgument().getNodeType()) > 0) {
-            return yangIdent;
-        }
-        final InstanceIdentifierContext<?> parentContext = payload.getInstanceIdentifierContext();
-        final SchemaNode parentSchemaNode = parentContext.getSchemaNode();
-        if (parentSchemaNode instanceof DataNodeContainer) {
-            final DataNodeContainer cast = (DataNodeContainer) parentSchemaNode;
-            for (final DataSchemaNode child : cast.getChildNodes()) {
-                if (payloadNodeQname.compareTo(child.getQName()) == 0) {
-                    return YangInstanceIdentifier.builder(yangIdent).node(child.getQName()).build();
-                }
-            }
-        }
-        if (parentSchemaNode instanceof RpcDefinition) {
-            return yangIdent;
-        }
-        final String errMsg = "Error parsing input: DataSchemaNode has not children ";
-        LOG.info(errMsg + yangIdent);
-        throw new RestconfDocumentedException(errMsg, ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE);
-    }
-
     @SuppressWarnings("checkstyle:IllegalCatch")
     private URI resolveLocation(final UriInfo uriInfo, final String uriBehindBase, final DOMMountPoint mountPoint,
             final YangInstanceIdentifier normalizedII) {
@@ -1044,7 +976,7 @@ public class RestconfImpl implements RestconfService {
         try {
             uriBuilder.path(this.controllerContext.toFullRestconfIdentifier(normalizedII, mountPoint));
         } catch (final Exception e) {
-            LOG.info("Location for instance identifier" + normalizedII + "wasn't created", e);
+            LOG.info("Location for instance identifier {} was not created", normalizedII, e);
             return null;
         }
         return uriBuilder.build();
@@ -1056,7 +988,7 @@ public class RestconfImpl implements RestconfService {
         final DOMMountPoint mountPoint = iiWithData.getMountPoint();
         final YangInstanceIdentifier normalizedII = iiWithData.getInstanceIdentifier();
 
-        final CheckedFuture<Void, TransactionCommitFailedException> future;
+        final FluentFuture<? extends CommitInfo> future;
         if (mountPoint != null) {
             future = this.broker.commitConfigurationDataDelete(mountPoint, normalizedII);
         } else {
@@ -1064,18 +996,19 @@ public class RestconfImpl implements RestconfService {
         }
 
         try {
-            future.checkedGet();
-        } catch (final TransactionCommitFailedException e) {
+            future.get();
+        } catch (final InterruptedException e) {
+            throw new RestconfDocumentedException(e.getMessage(), e);
+        } catch (final ExecutionException e) {
             final Optional<Throwable> searchedException = Iterables.tryFind(Throwables.getCausalChain(e),
-                    Predicates.instanceOf(ModifiedNodeDoesNotExistException.class));
+                    Predicates.instanceOf(ModifiedNodeDoesNotExistException.class)).toJavaUtil();
             if (searchedException.isPresent()) {
                 throw new RestconfDocumentedException("Data specified for delete doesn't exist.", ErrorType.APPLICATION,
-                        ErrorTag.DATA_MISSING);
+                    ErrorTag.DATA_MISSING, e);
             }
 
-            final String errMsg = "Error while deleting data";
-            LOG.info(errMsg, e);
-            throw new RestconfDocumentedException(e.getMessage(), e, e.getErrorList());
+            throw RestconfDocumentedException.decodeAndThrow(e.getMessage(), Throwables.getCauseAs(e,
+                TransactionCommitFailedException.class));
         }
 
         return Response.status(Status.OK).build();
@@ -1156,7 +1089,7 @@ public class RestconfImpl implements RestconfService {
         if (response != null) {
             // prepare node with value of location
             final InstanceIdentifierContext<?> iid = prepareIIDSubsStreamOutput();
-            final NormalizedNodeAttrBuilder<NodeIdentifier, Object, LeafNode<Object>> builder =
+            final NormalizedNodeBuilder<NodeIdentifier, Object, LeafNode<Object>> builder =
                     ImmutableLeafNodeBuilder.create().withValue(response.toString());
             builder.withNodeIdentifier(
                     NodeIdentifier.create(QName.create("subscribe:to:notification", "2016-10-28", "location")));
@@ -1191,11 +1124,11 @@ public class RestconfImpl implements RestconfService {
      * @return {@link InstanceIdentifierContext} of location leaf for
      *         notification
      */
-    private static InstanceIdentifierContext<?> prepareIIDSubsStreamOutput() {
+    private InstanceIdentifierContext<?> prepareIIDSubsStreamOutput() {
         final QName qnameBase = QName.create("subscribe:to:notification", "2016-10-28", "notifi");
-        final SchemaContext schemaCtx = ControllerContext.getInstance().getGlobalSchema();
+        final EffectiveModelContext schemaCtx = controllerContext.getGlobalSchema();
         final DataSchemaNode location = ((ContainerSchemaNode) schemaCtx
-                .findModuleByNamespaceAndRevision(qnameBase.getNamespace(), qnameBase.getRevision())
+                .findModule(qnameBase.getModule()).orElse(null)
                 .getDataChildByName(qnameBase)).getDataChildByName(QName.create(qnameBase, "location"));
         final List<PathArgument> path = new ArrayList<>();
         path.add(NodeIdentifier.create(qnameBase));
@@ -1234,22 +1167,27 @@ public class RestconfImpl implements RestconfService {
 
         for (final NotificationListenerAdapter listener : listeners) {
             this.broker.registerToListenNotification(listener);
-            listener.setQueryParams(start,
-                    java.util.Optional.ofNullable(stop), java.util.Optional.ofNullable(filter), false);
+            listener.setQueryParams(start, Optional.ofNullable(stop), Optional.ofNullable(filter), false);
         }
 
         final UriBuilder uriBuilder = uriInfo.getAbsolutePathBuilder();
-        int notificationPort = NOTIFICATION_PORT;
-        try {
-            final WebSocketServer webSocketServerInstance = WebSocketServer.getInstance();
-            notificationPort = webSocketServerInstance.getPort();
-        } catch (final NullPointerException e) {
-            WebSocketServer.createInstance(NOTIFICATION_PORT);
-        }
-        final UriBuilder uriToWebsocketServerBuilder = uriBuilder.port(notificationPort).scheme("ws");
-        final URI uriToWebsocketServer = uriToWebsocketServerBuilder.replacePath(streamName).build();
 
-        return uriToWebsocketServer;
+        final WebSocketServer webSocketServerInstance = WebSocketServer.getInstance(NOTIFICATION_PORT);
+        final int notificationPort = webSocketServerInstance.getPort();
+
+
+        final UriBuilder uriToWebsocketServerBuilder = uriBuilder.port(notificationPort).scheme(getWsScheme(uriInfo));
+
+        return uriToWebsocketServerBuilder.replacePath(streamName).build();
+    }
+
+    private static String getWsScheme(final UriInfo uriInfo) {
+        URI uri = uriInfo.getAbsolutePath();
+        if (uri == null) {
+            return "ws";
+        }
+        String subscriptionScheme = uri.getScheme().toLowerCase(Locale.ROOT);
+        return subscriptionScheme.equals("https") ? "wss" : "ws";
     }
 
     /**
@@ -1279,8 +1217,7 @@ public class RestconfImpl implements RestconfService {
             throw new RestconfDocumentedException("Stream was not found.", ErrorType.PROTOCOL,
                     ErrorTag.UNKNOWN_ELEMENT);
         }
-        listener.setQueryParams(start, java.util.Optional.ofNullable(stop),
-                java.util.Optional.ofNullable(filter), leafNodesOnly);
+        listener.setQueryParams(start, Optional.ofNullable(stop), Optional.ofNullable(filter), leafNodesOnly);
 
         final Map<String, String> paramToValues = resolveValuesFromUri(identifier);
         final LogicalDatastoreType datastore =
@@ -1299,17 +1236,13 @@ public class RestconfImpl implements RestconfService {
         this.broker.registerToListenDataChanges(datastore, scope, listener);
 
         final UriBuilder uriBuilder = uriInfo.getAbsolutePathBuilder();
-        int notificationPort = NOTIFICATION_PORT;
-        try {
-            final WebSocketServer webSocketServerInstance = WebSocketServer.getInstance();
-            notificationPort = webSocketServerInstance.getPort();
-        } catch (final NullPointerException e) {
-            WebSocketServer.createInstance(NOTIFICATION_PORT);
-        }
-        final UriBuilder uriToWebsocketServerBuilder = uriBuilder.port(notificationPort).scheme("ws");
-        final URI uriToWebsocketServer = uriToWebsocketServerBuilder.replacePath(streamName).build();
 
-        return uriToWebsocketServer;
+        final WebSocketServer webSocketServerInstance = WebSocketServer.getInstance(NOTIFICATION_PORT);
+        final int notificationPort = webSocketServerInstance.getPort();
+
+        final UriBuilder uriToWebsocketServerBuilder = uriBuilder.port(notificationPort).scheme(getWsScheme(uriInfo));
+
+        return uriToWebsocketServerBuilder.replacePath(streamName).build();
     }
 
     @SuppressWarnings("checkstyle:IllegalCatch")
@@ -1324,7 +1257,7 @@ public class RestconfImpl implements RestconfService {
             return this.broker.patchConfigurationDataWithinTransaction(context);
         } catch (final Exception e) {
             LOG.debug("Patch transaction failed", e);
-            throw new RestconfDocumentedException(e.getMessage());
+            throw new RestconfDocumentedException(e.getMessage(), e);
         }
     }
 
@@ -1339,7 +1272,7 @@ public class RestconfImpl implements RestconfService {
             return this.broker.patchConfigurationDataWithinTransaction(context);
         } catch (final Exception e) {
             LOG.debug("Patch transaction failed", e);
-            throw new RestconfDocumentedException(e.getMessage());
+            throw new RestconfDocumentedException(e.getMessage(), e);
         }
     }
 
@@ -1353,13 +1286,17 @@ public class RestconfImpl implements RestconfService {
      */
     private static <T> T parseEnumTypeParameter(final ContainerNode value, final Class<T> classDescriptor,
             final String paramName) {
-        final Optional<DataContainerChild<? extends PathArgument, ?>> augNode =
-                value.getChild(SAL_REMOTE_AUG_IDENTIFIER);
-        if (!augNode.isPresent() && !(augNode instanceof AugmentationNode)) {
+        final Optional<DataContainerChild<? extends PathArgument, ?>> optAugNode = value.getChild(
+            SAL_REMOTE_AUG_IDENTIFIER);
+        if (!optAugNode.isPresent()) {
+            return null;
+        }
+        final DataContainerChild<? extends PathArgument, ?> augNode = optAugNode.get();
+        if (!(augNode instanceof AugmentationNode)) {
             return null;
         }
-        final Optional<DataContainerChild<? extends PathArgument, ?>> enumNode = ((AugmentationNode) augNode.get())
-                .getChild(new NodeIdentifier(QName.create(SAL_REMOTE_AUGMENT, paramName)));
+        final Optional<DataContainerChild<? extends PathArgument, ?>> enumNode = ((AugmentationNode) augNode).getChild(
+                new NodeIdentifier(QName.create(SAL_REMOTE_AUGMENT, paramName)));
         if (!enumNode.isPresent()) {
             return null;
         }
@@ -1409,7 +1346,7 @@ public class RestconfImpl implements RestconfService {
         return result;
     }
 
-    private MapNode makeModuleMapNode(final Set<Module> modules) {
+    private MapNode makeModuleMapNode(final Collection<? extends Module> modules) {
         Preconditions.checkNotNull(modules);
         final Module restconfModule = getRestconfModule();
         final DataSchemaNode moduleSchemaNode = this.controllerContext
@@ -1425,11 +1362,11 @@ public class RestconfImpl implements RestconfService {
         return listModuleBuilder.build();
     }
 
-    protected MapEntryNode toModuleEntryNode(final Module module, final DataSchemaNode moduleSchemaNode) {
+    private MapEntryNode toModuleEntryNode(final Module module, final DataSchemaNode moduleSchemaNode) {
         Preconditions.checkArgument(moduleSchemaNode instanceof ListSchemaNode,
                 "moduleSchemaNode has to be of type ListSchemaNode");
         final ListSchemaNode listModuleSchemaNode = (ListSchemaNode) moduleSchemaNode;
-        final DataContainerNodeAttrBuilder<NodeIdentifierWithPredicates, MapEntryNode> moduleNodeValues =
+        final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> moduleNodeValues =
                 Builders.mapEntryBuilder(listModuleSchemaNode);
 
         List<DataSchemaNode> instanceDataChildrenByName =
@@ -1439,20 +1376,22 @@ public class RestconfImpl implements RestconfService {
         moduleNodeValues
                 .withChild(Builders.leafBuilder((LeafSchemaNode) nameSchemaNode).withValue(module.getName()).build());
 
+        final QNameModule qNameModule = module.getQNameModule();
+
         instanceDataChildrenByName =
                 ControllerContext.findInstanceDataChildrenByName(listModuleSchemaNode, "revision");
         final DataSchemaNode revisionSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
         Preconditions.checkState(revisionSchemaNode instanceof LeafSchemaNode);
-        final String revision = module.getQNameModule().getFormattedRevision();
-        moduleNodeValues
-                .withChild(Builders.leafBuilder((LeafSchemaNode) revisionSchemaNode).withValue(revision).build());
+        final Optional<Revision> revision = qNameModule.getRevision();
+        moduleNodeValues.withChild(Builders.leafBuilder((LeafSchemaNode) revisionSchemaNode)
+                .withValue(revision.map(Revision::toString).orElse("")).build());
 
         instanceDataChildrenByName =
                 ControllerContext.findInstanceDataChildrenByName(listModuleSchemaNode, "namespace");
         final DataSchemaNode namespaceSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
         Preconditions.checkState(namespaceSchemaNode instanceof LeafSchemaNode);
         moduleNodeValues.withChild(Builders.leafBuilder((LeafSchemaNode) namespaceSchemaNode)
-                .withValue(module.getNamespace().toString()).build());
+                .withValue(qNameModule.getNamespace().toString()).build());
 
         instanceDataChildrenByName =
                 ControllerContext.findInstanceDataChildrenByName(listModuleSchemaNode, "feature");
@@ -1473,7 +1412,7 @@ public class RestconfImpl implements RestconfService {
         Preconditions.checkArgument(streamSchemaNode instanceof ListSchemaNode,
                 "streamSchemaNode has to be of type ListSchemaNode");
         final ListSchemaNode listStreamSchemaNode = (ListSchemaNode) streamSchemaNode;
-        final DataContainerNodeAttrBuilder<NodeIdentifierWithPredicates, MapEntryNode> streamNodeValues =
+        final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> streamNodeValues =
                 Builders.mapEntryBuilder(listStreamSchemaNode);
 
         List<DataSchemaNode> instanceDataChildrenByName =
@@ -1494,7 +1433,7 @@ public class RestconfImpl implements RestconfService {
         final DataSchemaNode replaySupportSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
         Preconditions.checkState(replaySupportSchemaNode instanceof LeafSchemaNode);
         streamNodeValues.withChild(Builders.leafBuilder((LeafSchemaNode) replaySupportSchemaNode)
-                .withValue(Boolean.valueOf(true)).build());
+                .withValue(Boolean.TRUE).build());
 
         instanceDataChildrenByName =
                 ControllerContext.findInstanceDataChildrenByName(listStreamSchemaNode, "replay-log-creation-time");
@@ -1506,7 +1445,7 @@ public class RestconfImpl implements RestconfService {
         instanceDataChildrenByName = ControllerContext.findInstanceDataChildrenByName(listStreamSchemaNode, "events");
         final DataSchemaNode eventsSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
         Preconditions.checkState(eventsSchemaNode instanceof LeafSchemaNode);
-        streamNodeValues.withChild(Builders.leafBuilder((LeafSchemaNode) eventsSchemaNode).withValue("").build());
+        streamNodeValues.withChild(Builders.leafBuilder((LeafSchemaNode) eventsSchemaNode).build());
 
         return streamNodeValues.build();
     }
@@ -1518,8 +1457,7 @@ public class RestconfImpl implements RestconfService {
      *            contains list of qnames of notifications
      * @return - checked future object
      */
-    private static CheckedFuture<DOMRpcResult, DOMRpcException> invokeSalRemoteRpcNotifiStrRPC(
-            final NormalizedNodeContext payload) {
+    private ListenableFuture<DOMRpcResult> invokeSalRemoteRpcNotifiStrRPC(final NormalizedNodeContext payload) {
         final ContainerNode data = (ContainerNode) payload.getData();
         LeafSetNode leafSet = null;
         String outputType = "XML";
@@ -1535,11 +1473,11 @@ public class RestconfImpl implements RestconfService {
         final List<SchemaPath> paths = new ArrayList<>();
         String streamName = CREATE_NOTIFICATION_STREAM + "/";
 
+        StringBuilder streamNameBuilder = new StringBuilder(streamName);
         final Iterator<LeafSetEntryNode> iterator = entryNodes.iterator();
         while (iterator.hasNext()) {
             final QName valueQName = QName.create((String) iterator.next().getValue());
-            final Module module =
-                    ControllerContext.getInstance().findModuleByNamespace(valueQName.getModule().getNamespace());
+            final Module module = controllerContext.findModuleByNamespace(valueQName.getModule().getNamespace());
             Preconditions.checkNotNull(module,
                     "Module for namespace " + valueQName.getModule().getNamespace() + " does not exist");
             NotificationDefinition notifiDef = null;
@@ -1553,12 +1491,14 @@ public class RestconfImpl implements RestconfService {
             Preconditions.checkNotNull(notifiDef,
                     "Notification " + valueQName + "doesn't exist in module " + moduleName);
             paths.add(notifiDef.getPath());
-            streamName = streamName + moduleName + ":" + valueQName.getLocalName();
+            streamNameBuilder.append(moduleName).append(':').append(valueQName.getLocalName());
             if (iterator.hasNext()) {
-                streamName = streamName + ",";
+                streamNameBuilder.append(',');
             }
         }
 
+        streamName = streamNameBuilder.toString();
+
         final QName rpcQName = payload.getInstanceIdentifierContext().getSchemaNode().getQName();
         final QName outputQname = QName.create(rpcQName, "output");
         final QName streamNameQname = QName.create(rpcQName, "notification-stream-identifier");
@@ -1568,11 +1508,9 @@ public class RestconfImpl implements RestconfService {
                         .withChild(ImmutableNodes.leafNode(streamNameQname, streamName)).build();
 
         if (!Notificator.existNotificationListenerFor(streamName)) {
-            Notificator.createNotificationListener(paths, streamName, outputType);
+            Notificator.createNotificationListener(paths, streamName, outputType, controllerContext);
         }
 
-        final DOMRpcResult defaultDOMRpcResult = new DefaultDOMRpcResult(output);
-
-        return Futures.immediateCheckedFuture(defaultDOMRpcResult);
+        return Futures.immediateFuture(new DefaultDOMRpcResult(output));
     }
 }