Bug 5553 - Impl get operations
[netconf.git] / restconf / sal-rest-connector / src / main / java / org / opendaylight / netconf / sal / restconf / impl / RestconfImpl.java
index 493dbb99c433f2f1d510f5221f12f25b518d1fae..095df06586d5e14d0811720c0e97a6a0cd698858 100644 (file)
@@ -11,28 +11,32 @@ package org.opendaylight.netconf.sal.restconf.impl;
 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;
 import com.google.common.base.Strings;
-import com.google.common.base.Throwables;
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
 import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 import java.math.BigInteger;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.Date;
 import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.CancellationException;
+import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.ExecutionException;
 import javax.ws.rs.core.Context;
 import javax.ws.rs.core.Response;
@@ -56,6 +60,7 @@ import org.opendaylight.netconf.sal.rest.api.RestconfService;
 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorTag;
 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorType;
 import org.opendaylight.netconf.sal.streams.listeners.ListenerAdapter;
+import org.opendaylight.netconf.sal.streams.listeners.NotificationListenerAdapter;
 import org.opendaylight.netconf.sal.streams.listeners.Notificator;
 import org.opendaylight.netconf.sal.streams.websockets.WebSocketServer;
 import org.opendaylight.yangtools.yang.common.QName;
@@ -67,11 +72,12 @@ import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgum
 import org.opendaylight.yangtools.yang.data.api.schema.AugmentationNode;
 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
+import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
+import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.ModifiedNodeDoesNotExistException;
 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;
@@ -86,10 +92,12 @@ import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
 import org.opendaylight.yangtools.yang.model.api.Module;
+import org.opendaylight.yangtools.yang.model.api.NotificationDefinition;
 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.parser.stmt.rfc6020.effective.EffectiveSchemaContext;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -134,6 +142,12 @@ public class RestconfImpl implements RestconfService {
 
     private static final YangInstanceIdentifier.AugmentationIdentifier SAL_REMOTE_AUG_IDENTIFIER;
 
+    public static final CharSequence DATA_SUBSCR = "data-change-event-subscription";
+    private static final CharSequence CREATE_DATA_SUBSCR = "create-" + DATA_SUBSCR;
+
+    public static final CharSequence NOTIFICATION_STREAM = "notification-stream";
+    private static final CharSequence CREATE_NOTIFICATION_STREAM = "create-" + NOTIFICATION_STREAM;
+
     static {
         try {
             final Date eventSubscriptionAugRevision = new SimpleDateFormat("yyyy-MM-dd").parse("2014-07-08");
@@ -309,9 +323,48 @@ public class RestconfImpl implements RestconfService {
         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 NormalizedNodeContext operationsFromModulesToNormalizedContext(final Set<Module> modules,
             final DOMMountPoint mountPoint) {
-        throw new UnsupportedOperationException();
+
+        final ContainerSchemaNodeImpl fakeCont = new ContainerSchemaNodeImpl();
+        final List<LeafNode<Object>> listRpcNodes = new ArrayList<>();
+        for (final Module m : modules) {
+            for (final RpcDefinition rpc : m.getRpcs()) {
+
+                final LeafSchemaNode fakeLeaf = new LeafSchemaNodeImpl(fakeCont.getPath(),
+                        QName.create(ModuleImpl.moduleQName, m.getName() + ":" + rpc.getQName().getLocalName()));
+                fakeCont.addNodeChild(fakeLeaf);
+                listRpcNodes.add(Builders.leafBuilder(fakeLeaf).build());
+            }
+        }
+        final ContainerSchemaNode fakeContSchNode = fakeCont;
+        final DataContainerNodeAttrBuilder<NodeIdentifier, ContainerNode> containerBuilder = Builders
+                .containerBuilder(fakeContSchNode);
+
+        for (final LeafNode<Object> rpcNode : listRpcNodes) {
+            containerBuilder.withChild(rpcNode);
+        }
+
+        final Module fakeModule = new ModuleImpl(fakeContSchNode);
+
+        final Set<Module> fakeModules = new HashSet<>();
+        fakeModules.add(fakeModule);
+        final SchemaContext fakeSchemaCtx = EffectiveSchemaContext.resolveSchemaContext(fakeModules);
+        final InstanceIdentifierContext<ContainerSchemaNode> instanceIdentifierContext = new InstanceIdentifierContext<>(
+                null, fakeContSchNode, mountPoint, fakeSchemaCtx);
+        return new NormalizedNodeContext(instanceIdentifierContext, containerBuilder.build());
     }
 
     private Module getRestconfModule() {
@@ -378,7 +431,15 @@ public class RestconfImpl implements RestconfService {
             response = mountRpcServices.get().invokeRpc(type, payload.getData());
         } else {
             if (namespace.toString().equals(SAL_REMOTE_NAMESPACE)) {
-                response = invokeSalRemoteRpcSubscribeRPC(payload);
+                if (identifier.contains(CREATE_DATA_SUBSCR)) {
+                    response = invokeSalRemoteRpcSubscribeRPC(payload);
+                } else if (identifier.contains(CREATE_NOTIFICATION_STREAM)) {
+                    response = invokeSalRemoteRpcNotifiStrRPC(payload);
+                } else {
+                    final String msg = "Not supported operation";
+                    LOG.warn(msg);
+                    throw new RestconfDocumentedException(msg, ErrorType.RPC, ErrorTag.OPERATION_NOT_SUPPORTED);
+                }
             } else {
                 response = this.broker.invokeRpc(type, payload.getData());
             }
@@ -446,12 +507,6 @@ public class RestconfImpl implements RestconfService {
             // did not expect any input
             throw new RestconfDocumentedException("No input expected.", ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE);
         }
-        // else
-        // {
-        // TODO: Validate "mandatory" and "config" values here??? Or should those be
-        // those be
-        // validate in a more central location inside MD-SAL core.
-        // }
     }
 
     private CheckedFuture<DOMRpcResult, DOMRpcException> invokeSalRemoteRpcSubscribeRPC(final NormalizedNodeContext payload) {
@@ -468,9 +523,10 @@ public class RestconfImpl implements RestconfService {
         }
 
         final YangInstanceIdentifier pathIdentifier = ((YangInstanceIdentifier) pathValue);
-        String streamName = null;
+        String streamName = (String) CREATE_DATA_SUBSCR;
         if (!pathIdentifier.isEmpty()) {
-            final String fullRestconfIdentifier = this.controllerContext.toFullRestconfIdentifier(pathIdentifier, null);
+            final String fullRestconfIdentifier = DATA_SUBSCR
+                    + this.controllerContext.toFullRestconfIdentifier(pathIdentifier, null);
 
             LogicalDatastoreType datastore = parseEnumTypeParameter(value, LogicalDatastoreType.class, DATASTORE_PARAM_NAME);
             datastore = datastore == null ? DEFAULT_DATASTORE : datastore;
@@ -651,36 +707,67 @@ public class RestconfImpl implements RestconfService {
          * failures back to the client and forcing them to handle it via retry (and having to
          * document the behavior).
          */
-        int tries = 2;
+        PutResult result = null;
+        final TryOfPutData tryPutData = new TryOfPutData();
         while(true) {
-            try {
-                if (mountPoint != null) {
-                    this.broker.commitConfigurationDataPut(mountPoint, normalizedII, payload.getData()).checkedGet();
-                } else {
-                    this.broker.commitConfigurationDataPut(this.controllerContext.getGlobalSchema(), normalizedII, payload.getData()).checkedGet();
+            if (mountPoint != null) {
+
+                result = this.broker.commitMountPointDataPut(mountPoint, normalizedII, payload.getData());
+            } else {
+                result = this.broker.commitConfigurationDataPut(this.controllerContext.getGlobalSchema(), normalizedII,
+                        payload.getData());
+            }
+            final CountDownLatch waiter = new CountDownLatch(1);
+            Futures.addCallback(result.getFutureOfPutData(), new FutureCallback<Void>() {
+
+                @Override
+                public void onSuccess(final Void result) {
+                    handlingLoggerPut(null, tryPutData, identifier);
+                    waiter.countDown();
+                }
+
+                @Override
+                public void onFailure(final Throwable t) {
+                    waiter.countDown();
+                    handlingLoggerPut(t, tryPutData, identifier);
                 }
+            });
 
+            try {
+                waiter.await();
+            } catch (final InterruptedException e) {
+                final String msg = "Problem while waiting for response";
+                LOG.warn(msg);
+                throw new RestconfDocumentedException(msg, e);
+            }
+
+            if(tryPutData.isDone()){
                 break;
-            } catch (final TransactionCommitFailedException e) {
-                if(e instanceof OptimisticLockFailedException) {
-                    if(--tries <= 0) {
-                        LOG.debug("Got OptimisticLockFailedException on last try - failing " + identifier);
-                        throw new RestconfDocumentedException(e.getMessage(), e, e.getErrorList());
-                    }
+            } else {
+                throw new RestconfDocumentedException("Problem while PUT operations");
+            }
+        }
 
-                    LOG.debug("Got OptimisticLockFailedException - trying again " + identifier);
-                } else {
-                    LOG.debug("Update ConfigDataStore fail " + identifier, e);
-                    throw new RestconfDocumentedException(e.getMessage(), e, e.getErrorList());
+        return Response.status(result.getStatus()).build();
+    }
+
+    protected void handlingLoggerPut(final Throwable t, final TryOfPutData tryPutData, final String identifier) {
+        if (t != null) {
+            if (t instanceof OptimisticLockFailedException) {
+                if (tryPutData.countGet() <= 0) {
+                    LOG.debug("Got OptimisticLockFailedException on last try - failing " + identifier);
+                    throw new RestconfDocumentedException(t.getMessage(), t);
                 }
-            } catch (final Exception e) {
-                final String errMsg = "Error updating data ";
-                LOG.debug(errMsg + identifier, e);
-                throw new RestconfDocumentedException(errMsg, e);
+                LOG.debug("Got OptimisticLockFailedException - trying again " + identifier);
+                tryPutData.countDown();
+            } else {
+                LOG.debug("Update ConfigDataStore fail " + identifier, t);
+                throw new RestconfDocumentedException(t.getMessage(), t);
             }
+        } else {
+            LOG.trace("PUT Successful " + identifier);
+            tryPutData.done();
         }
-
-        return Response.status(Status.OK).build();
     }
 
     private static void validateTopLevelNodeName(final NormalizedNodeContext node,
@@ -801,18 +888,37 @@ public class RestconfImpl implements RestconfService {
         final DOMMountPoint mountPoint = payload.getInstanceIdentifierContext().getMountPoint();
         final InstanceIdentifierContext<?> iiWithData = payload.getInstanceIdentifierContext();
         final YangInstanceIdentifier normalizedII = iiWithData.getInstanceIdentifier();
-        try {
-            if (mountPoint != null) {
-                this.broker.commitConfigurationDataPost(mountPoint, normalizedII, payload.getData()).checkedGet();
-            } else {
-                this.broker.commitConfigurationDataPost(this.controllerContext.getGlobalSchema(), normalizedII, payload.getData()).checkedGet();
+
+        CheckedFuture<Void, TransactionCommitFailedException> future;
+        if (mountPoint != null) {
+            future = this.broker.commitConfigurationDataPost(mountPoint, normalizedII, payload.getData());
+        } else {
+            future = this.broker.commitConfigurationDataPost(this.controllerContext.getGlobalSchema(), normalizedII,
+                    payload.getData());
+        }
+
+        final CountDownLatch waiter = new CountDownLatch(1);
+        Futures.addCallback(future, new FutureCallback<Void>() {
+
+            @Override
+            public void onSuccess(final Void result) {
+                handlerLoggerPost(null, uriInfo);
+                waiter.countDown();
             }
-        } catch(final RestconfDocumentedException e) {
-            throw e;
-        } catch (final Exception e) {
-            final String errMsg = "Error creating data ";
-            LOG.info(errMsg + (uriInfo != null ? uriInfo.getPath() : ""), e);
-            throw new RestconfDocumentedException(errMsg, e);
+
+            @Override
+            public void onFailure(final Throwable t) {
+                waiter.countDown();
+                handlerLoggerPost(t, uriInfo);
+            }
+        });
+
+        try {
+            waiter.await();
+        } catch (final InterruptedException e) {
+            final String msg = "Problem while waiting for response";
+            LOG.warn(msg);
+            throw new RestconfDocumentedException(msg, e);
         }
 
         final ResponseBuilder responseBuilder = Response.status(Status.NO_CONTENT);
@@ -824,6 +930,16 @@ public class RestconfImpl implements RestconfService {
         return responseBuilder.build();
     }
 
+    protected void handlerLoggerPost(final Throwable t, final UriInfo uriInfo) {
+        if (t != null) {
+            final String errMsg = "Error creating data ";
+            LOG.warn(errMsg + (uriInfo != null ? uriInfo.getPath() : ""), t);
+            throw new RestconfDocumentedException(errMsg, t);
+        } else {
+            LOG.trace("Successfuly create data.");
+        }
+    }
+
     private URI resolveLocation(final UriInfo uriInfo, final String uriBehindBase, final DOMMountPoint mountPoint, final YangInstanceIdentifier normalizedII) {
         if(uriInfo == null) {
             // This is null if invoked internally
@@ -847,25 +963,51 @@ public class RestconfImpl implements RestconfService {
         final DOMMountPoint mountPoint = iiWithData.getMountPoint();
         final YangInstanceIdentifier normalizedII = iiWithData.getInstanceIdentifier();
 
-        try {
-            if (mountPoint != null) {
-                this.broker.commitConfigurationDataDelete(mountPoint, normalizedII);
-            } else {
-                this.broker.commitConfigurationDataDelete(normalizedII).get();
+        final CheckedFuture<Void, TransactionCommitFailedException> future;
+        if (mountPoint != null) {
+            future = this.broker.commitConfigurationDataDelete(mountPoint, normalizedII);
+        } else {
+            future = this.broker.commitConfigurationDataDelete(normalizedII);
+        }
+
+        final CountDownLatch waiter = new CountDownLatch(1);
+        Futures.addCallback(future, new FutureCallback<Void>() {
+
+            @Override
+            public void onSuccess(final Void result) {
+                handlerLoggerDelete(null);
+                waiter.countDown();
             }
-        } catch (final Exception e) {
-            final Optional<Throwable> searchedException = Iterables.tryFind(Throwables.getCausalChain(e),
-                    Predicates.instanceOf(ModifiedNodeDoesNotExistException.class));
-            if (searchedException.isPresent()) {
-                throw new RestconfDocumentedException("Data specified for deleting doesn't exist.", ErrorType.APPLICATION, ErrorTag.DATA_MISSING);
+
+            @Override
+            public void onFailure(final Throwable t) {
+                waiter.countDown();
+                handlerLoggerDelete(t);
             }
-            final String errMsg = "Error while deleting data";
-            LOG.info(errMsg, e);
-            throw new RestconfDocumentedException(errMsg, e);
+
+        });
+
+        try {
+            waiter.await();
+        } catch (final InterruptedException e) {
+            final String msg = "Problem while waiting for response";
+            LOG.warn(msg);
+            throw new RestconfDocumentedException(msg, e);
         }
+
         return Response.status(Status.OK).build();
     }
 
+    protected void handlerLoggerDelete(final Throwable t) {
+        if (t != null) {
+            final String errMsg = "Error while deleting data";
+            LOG.info(errMsg, t);
+            throw new RestconfDocumentedException(errMsg, t);
+        } else {
+            LOG.trace("Successfuly delete data.");
+        }
+    }
+
     /**
      * Subscribes to some path in schema context (stream) to listen on changes on this stream.
      *
@@ -877,6 +1019,64 @@ public class RestconfImpl implements RestconfService {
      */
     @Override
     public Response subscribeToStream(final String identifier, final UriInfo uriInfo) {
+        if (identifier.contains(DATA_SUBSCR)) {
+            return dataSubs(identifier, uriInfo);
+        } else if (identifier.contains(NOTIFICATION_STREAM)) {
+            return notifStream(identifier, uriInfo);
+        }
+        final String msg = "Bad type of notification of sal-remote";
+        LOG.warn(msg);
+        throw new RestconfDocumentedException(msg);
+    }
+
+    /**
+     * Register notification listener by stream name
+     *
+     * @param identifier
+     *            - stream name
+     * @param uriInfo
+     *            - uriInfo
+     * @return {@link Response}
+     */
+    private Response notifStream(final String identifier, final UriInfo uriInfo) {
+        final String streamName = Notificator.createStreamNameFromUri(identifier);
+        if (Strings.isNullOrEmpty(streamName)) {
+            throw new RestconfDocumentedException("Stream name is empty.", ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
+        }
+        final List<NotificationListenerAdapter> listeners = Notificator.getNotificationListenerFor(streamName);
+        if ((listeners == null) || listeners.isEmpty()) {
+            throw new RestconfDocumentedException("Stream was not found.", ErrorType.PROTOCOL,
+                    ErrorTag.UNKNOWN_ELEMENT);
+        }
+
+        for (final NotificationListenerAdapter listener : listeners) {
+            this.broker.registerToListenNotification(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 Response.status(Status.OK).location(uriToWebsocketServer).build();
+    }
+
+    /**
+     * Register data change listener by stream name
+     *
+     * @param identifier
+     *            - stream name
+     * @param uriInfo
+     *            - uri info
+     * @return {@link Response}
+     */
+    private Response dataSubs(final String identifier, final UriInfo uriInfo) {
         final String streamName = Notificator.createStreamNameFromUri(identifier);
         if (Strings.isNullOrEmpty(streamName)) {
             throw new RestconfDocumentedException("Stream name is empty.", ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
@@ -921,7 +1121,14 @@ public class RestconfImpl implements RestconfService {
         if (context == null) {
             throw new RestconfDocumentedException("Input is required.", ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE);
         }
-        return this.broker.patchConfigurationDataWithinTransaction(context, this.controllerContext.getGlobalSchema());
+
+        try {
+            return this.broker.patchConfigurationDataWithinTransaction(context,
+                    this.controllerContext.getGlobalSchema());
+        } catch (final InterruptedException e) {
+            LOG.debug("Patch transaction failed", e);
+            throw new RestconfDocumentedException(e.getMessage());
+        }
     }
 
     @Override
@@ -929,13 +1136,20 @@ public class RestconfImpl implements RestconfService {
         if (context == null) {
             throw new RestconfDocumentedException("Input is required.", ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE);
         }
-        return this.broker.patchConfigurationDataWithinTransaction(context, this.controllerContext.getGlobalSchema());
+
+        try {
+            return this.broker.patchConfigurationDataWithinTransaction(context,
+                    this.controllerContext.getGlobalSchema());
+        } catch (final InterruptedException e) {
+            LOG.debug("Patch transaction failed", e);
+            throw new RestconfDocumentedException(e.getMessage());
+        }
     }
 
     /**
      * Load parameter for subscribing to stream from input composite node
      *
-     * @param compNode
+     * @param value
      *            contains value
      * @return enum object if its string value is equal to {@code paramName}. In other cases null.
      */
@@ -995,11 +1209,6 @@ public class RestconfImpl implements RestconfService {
         return result;
     }
 
-    public BigInteger getOperationalReceived() {
-        // TODO Auto-generated method stub
-        return null;
-    }
-
     private MapNode makeModuleMapNode(final Set<Module> modules) {
         Preconditions.checkNotNull(modules);
         final Module restconfModule = getRestconfModule();
@@ -1104,4 +1313,89 @@ public class RestconfImpl implements RestconfService {
 
         return streamNodeValues.build();
     }
+
+    /**
+     * Prepare stream for notification
+     *
+     * @param payload
+     *            - contains list of qnames of notifications
+     * @return - checked future object
+     */
+    private CheckedFuture<DOMRpcResult, DOMRpcException> invokeSalRemoteRpcNotifiStrRPC(
+            final NormalizedNodeContext payload) {
+        final ContainerNode data = (ContainerNode) payload.getData();
+        LeafSetNode leafSet = null;
+        String outputType = "XML";
+        for (final DataContainerChild<? extends PathArgument, ?> dataChild : data.getValue()) {
+            if (dataChild instanceof LeafSetNode) {
+                leafSet = (LeafSetNode) dataChild;
+            } else if (dataChild instanceof AugmentationNode) {
+                outputType = (String) (((AugmentationNode) dataChild).getValue()).iterator().next().getValue();
+            }
+        }
+
+        final Collection<LeafSetEntryNode> entryNodes = leafSet.getValue();
+        final List<SchemaPath> paths = new ArrayList<>();
+        String streamName = CREATE_NOTIFICATION_STREAM + "/";
+
+        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());
+            Preconditions.checkNotNull(module, "Module for namespace " + valueQName.getModule().getNamespace()
+                    + " does not exist");
+            NotificationDefinition notifiDef = null;
+            for (final NotificationDefinition notification : module.getNotifications()) {
+                if (notification.getQName().equals(valueQName)) {
+                    notifiDef = notification;
+                    break;
+                }
+            }
+            final String moduleName = module.getName();
+            Preconditions.checkNotNull(notifiDef,
+                    "Notification " + valueQName + "doesn't exist in module " + moduleName);
+            paths.add(notifiDef.getPath());
+            streamName = streamName + moduleName + ":" + valueQName.getLocalName();
+            if (iterator.hasNext()) {
+                streamName = streamName + ",";
+            }
+        }
+
+        final QName rpcQName = payload.getInstanceIdentifierContext().getSchemaNode().getQName();
+        final QName outputQname = QName.create(rpcQName, "output");
+        final QName streamNameQname = QName.create(rpcQName, "notification-stream-identifier");
+
+        final ContainerNode output = ImmutableContainerNodeBuilder.create()
+                .withNodeIdentifier(new NodeIdentifier(outputQname))
+                .withChild(ImmutableNodes.leafNode(streamNameQname, streamName)).build();
+
+        if (!Notificator.existNotificationListenerFor(streamName)) {
+            Notificator.createNotificationListener(paths, streamName, outputType);
+        }
+
+        final DOMRpcResult defaultDOMRpcResult = new DefaultDOMRpcResult(output);
+
+        return Futures.immediateCheckedFuture(defaultDOMRpcResult);
+    }
+
+    private class TryOfPutData {
+        int tries = 2;
+        boolean done = false;
+
+        void countDown() {
+            this.tries--;
+        }
+
+        void done() {
+            this.done = true;
+        }
+
+        boolean isDone() {
+            return this.done;
+        }
+        int countGet() {
+            return this.tries;
+        }
+    }
 }