Add collaboration feature

Issue-ID: SDC-767
Change-Id: I14fb4c1f54086ed03a56a7ff7fab9ecd40381795
Signed-off-by: talig <talig@amdocs.com>

22 files changed, 1254 insertions, 0 deletions

diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/pom.xml b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/pom.xml
new file mode 100644
index 0000000000..4fe33ea1c3
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/pom.xml
@@ -0,0 +1,42 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <name>openecomp-sdc-notification-core</name>
+    <artifactId>openecomp-sdc-notification-core</artifactId>
+
+
+    <parent>
+        <groupId>org.openecomp.sdc</groupId>
+        <artifactId>openecomp-sdc-lib</artifactId>
+        <version>1.2.0-SNAPSHOT</version>
+        <relativePath>../..</relativePath>
+    </parent>
+    <dependencies>
+        <dependency>
+            <groupId>org.openecomp.sdc</groupId>
+            <artifactId>openecomp-sdc-notification-api</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-all</artifactId>
+            <scope>test</scope>
+            <version>1.10.19</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+            <version>${junit.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.powermock</groupId>
+            <artifactId>powermock-module-junit4</artifactId>
+            <version>1.6.5</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+</project>
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/destinationprovider/impl/MulticastDestination.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/destinationprovider/impl/MulticastDestination.java
new file mode 100644
index 0000000000..431f9c18d6
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/destinationprovider/impl/MulticastDestination.java
@@ -0,0 +1,44 @@
+package org.openecomp.sdc.destinationprovider.impl;
+
+import org.apache.commons.lang3.ArrayUtils;
+import org.openecomp.sdc.destinationprovider.DestinationProvider;
+import org.openecomp.sdc.notification.services.SubscriptionService;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * @author avrahamg
+ * @since July 09, 2017
+ */
+public class MulticastDestination implements DestinationProvider {
+
+    private String entityId;
+    private SubscriptionService subscriptionService;
+    private String[] excludedSubscribers;
+
+    public MulticastDestination(String entityId, SubscriptionService subscriptionService,
+                                String... excludedSubscribers) {
+        this.entityId = entityId;
+        this.excludedSubscribers = excludedSubscribers;
+        this.subscriptionService = subscriptionService;
+    }
+
+    public List<String> getSubscribers() {
+        ArrayList<String> subscribers = new ArrayList<>(subscriptionService.getSubscribers(entityId));
+        if (ArrayUtils.isNotEmpty(excludedSubscribers)) {
+            subscribers.removeAll(Arrays.asList(excludedSubscribers));
+        }
+        return Collections.unmodifiableList(subscribers);
+    }
+
+    public String getEntityId() {
+        return entityId;
+    }
+
+    public void setEntityId(String entityId) {
+        this.entityId = entityId;
+    }
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/destinationprovider/impl/UnicastDestination.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/destinationprovider/impl/UnicastDestination.java
new file mode 100644
index 0000000000..693c816d01
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/destinationprovider/impl/UnicastDestination.java
@@ -0,0 +1,23 @@
+package org.openecomp.sdc.destinationprovider.impl;
+
+import org.openecomp.sdc.destinationprovider.DestinationProvider;
+
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * @author avrahamg
+ * @since July 09, 2017
+ */
+public class UnicastDestination implements DestinationProvider {
+
+    private String originatorId;
+
+    public UnicastDestination(String originatorId) {
+        this.originatorId = originatorId;
+    }
+
+    public List<String> getSubscribers() {
+        return Collections.unmodifiableList(Collections.singletonList(originatorId));
+    }
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/dao/impl/LastNotificationDaoCassandraImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/dao/impl/LastNotificationDaoCassandraImpl.java
new file mode 100644
index 0000000000..0bfd6a314d
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/dao/impl/LastNotificationDaoCassandraImpl.java
@@ -0,0 +1,87 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.notification.dao.impl;
+
+import com.datastax.driver.core.ResultSet;
+import com.datastax.driver.core.Row;
+import com.datastax.driver.mapping.Mapper;
+import com.datastax.driver.mapping.Result;
+import com.datastax.driver.mapping.annotations.Accessor;
+import com.datastax.driver.mapping.annotations.Query;
+import org.openecomp.core.dao.impl.CassandraBaseDao;
+import org.openecomp.core.nosqldb.api.NoSqlDb;
+import org.openecomp.core.nosqldb.factory.NoSqlDbFactory;
+import org.openecomp.sdc.notification.dao.LastNotificationDao;
+import org.openecomp.sdc.notification.dao.types.LastSeenNotificationEntity;
+
+import java.util.Collection;
+import java.util.UUID;
+
+
+public class LastNotificationDaoCassandraImpl extends CassandraBaseDao<LastSeenNotificationEntity> implements LastNotificationDao {
+
+  private static final NoSqlDb noSqlDb = NoSqlDbFactory.getInstance().createInterface();
+  private static final Mapper<LastSeenNotificationEntity> mapper =
+      noSqlDb.getMappingManager().mapper(LastSeenNotificationEntity.class);
+  private static final LastNotificationAccessor accessor =
+      noSqlDb.getMappingManager().createAccessor(LastNotificationAccessor.class);
+
+  @Override
+  protected Mapper<LastSeenNotificationEntity> getMapper() {
+    return mapper;
+  }
+
+  @Override
+  protected Object[] getKeys(LastSeenNotificationEntity entity) {
+    return new Object[]{entity.getOwnerId()};
+  }
+
+  @Override
+  public Collection<LastSeenNotificationEntity> list(LastSeenNotificationEntity entity) {
+    return accessor.list(entity.getOwnerId()).all();
+  }
+
+  @Override
+  public UUID getOwnerLastEventId(String ownerId) {
+    ResultSet ownerLastEventId = accessor.getOwnerLastEventId(ownerId);
+    Row one = ownerLastEventId.one();
+    return one != null ? one.getUUID("event_id") : null;
+  }
+
+  @Override
+  public void persistOwnerLastEventId(String ownerId, UUID eventId) {
+	    accessor.updateOwnerLastEventId(eventId, ownerId);
+  }
+
+  @Accessor
+  interface LastNotificationAccessor {
+
+    @Query("select * from last_notification where owner_id=?")
+    Result<LastSeenNotificationEntity> list(String ownerId);
+
+    @Query("select event_id from last_notification where owner_id=?")
+    ResultSet getOwnerLastEventId(String ownerId);
+
+    @Query("update last_notification set event_id=? where owner_id=?")
+    ResultSet updateOwnerLastEventId(UUID eventId, String ownerId);
+  }
+
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/dao/impl/NotificationsDaoCassandraImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/dao/impl/NotificationsDaoCassandraImpl.java
new file mode 100644
index 0000000000..151c2c81d9
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/dao/impl/NotificationsDaoCassandraImpl.java
@@ -0,0 +1,287 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.notification.dao.impl;
+
+import com.datastax.driver.core.BatchStatement;
+import com.datastax.driver.core.ResultSet;
+import com.datastax.driver.core.Statement;
+import com.datastax.driver.core.utils.UUIDs;
+import com.datastax.driver.mapping.Mapper;
+import com.datastax.driver.mapping.Result;
+import com.datastax.driver.mapping.annotations.Accessor;
+import com.datastax.driver.mapping.annotations.Query;
+import org.apache.commons.collections.CollectionUtils;
+import org.openecomp.core.dao.impl.CassandraBaseDao;
+import org.openecomp.core.nosqldb.api.NoSqlDb;
+import org.openecomp.core.nosqldb.factory.NoSqlDbFactory;
+import org.openecomp.sdc.notification.dao.NotificationsDao;
+import org.openecomp.sdc.notification.dao.types.NotificationEntity;
+import org.openecomp.sdc.notification.dtos.NotificationsStatus;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+import static org.openecomp.core.nosqldb.impl.cassandra.CassandraSessionFactory.getSession;
+
+//import org.openecomp.sdc.notification.dao.types.LastSeenNotificationEntity;
+//import java.util.Optional;
+
+public class NotificationsDaoCassandraImpl extends CassandraBaseDao<NotificationEntity>
+    implements NotificationsDao {
+
+    private static final NoSqlDb noSqlDb = NoSqlDbFactory.getInstance().createInterface();
+    private static final Mapper<NotificationEntity> mapper =
+        noSqlDb.getMappingManager().mapper(NotificationEntity.class);
+    private static final NotificationsAccessor accessor =
+        noSqlDb.getMappingManager().createAccessor(NotificationsAccessor.class);
+
+    @Override
+    protected Mapper<NotificationEntity> getMapper() {
+        return mapper;
+    }
+
+    @Override
+    protected Object[] getKeys(NotificationEntity entity) {
+        return new Object[]{entity.getOwnerId(), entity.getEventId()};
+    }
+
+    @Override
+    public List<NotificationEntity> list(NotificationEntity entity) {
+        return accessor.list(entity.getOwnerId()).all();
+    }
+
+    @Override
+    public List<NotificationEntity> getNotificationsByOwnerId(String ownerId, int limit) {
+        return accessor.getNotifications(ownerId, limit).all();
+    }
+
+    @Override
+    public List<NotificationEntity> getNewNotificationsByOwnerId(String ownerId, UUID eventId) {
+        return getNewNotificationsByOwnerId(ownerId, eventId,
+            DEFAULT_LIMIT_OF_RESULTS_FOR_OWNER_NOTIFICATIONS);
+    }
+
+    @Override
+    public List<NotificationEntity> getNewNotificationsByOwnerId(String ownerId, UUID eventId, int limit) {
+        if (Objects.isNull(eventId)) {
+            return getNotificationsByOwnerId(ownerId, limit);
+        }
+        return accessor.getNewNotifications(ownerId, eventId, limit).all();
+    }
+
+    @Override
+    public void markNotificationAsRead(String ownerId, Collection<UUID> eventIds) {
+        eventIds.forEach(eventId -> accessor.markAsRead(ownerId, eventId));
+    }
+
+    @Override
+    public NotificationsStatus getNotificationsStatus(String ownerId, UUID lastScannedEventId, int numOfRecordsToReturn) {
+	NotificationsStatusImpl notificationsStatus = new NotificationsStatusImpl();
+	List<NotificationEntity> entities = accessor.getNotifications(ownerId, numOfRecordsToReturn).all();
+        if (CollectionUtils.isNotEmpty(entities)) {
+            long lastSeen = UUIDs.unixTimestamp(lastScannedEventId);
+            populateNewNotifications(notificationsStatus, entities, lastSeen);
+            UUID firstScannedEventId = entities.get(0).getEventId();
+		notificationsStatus.setLastScanned(firstScannedEventId);
+		notificationsStatus.setNumOfNotSeenNotifications(accessor.getNewNotificationsCount(ownerId, lastScannedEventId, firstScannedEventId).one().getLong(0));
+        }
+	return notificationsStatus;
+    }
+
+    private void populateNewNotifications(NotificationsStatusImpl notificationsStatus, List<NotificationEntity> entities, long lastSeen) {
+        for (NotificationEntity entity : entities) {
+            UUID eventId = entity.getEventId();
+            notificationsStatus.addNotification(entity);
+            if (UUIDs.unixTimestamp(eventId) > lastSeen) {
+                notificationsStatus.addNewNotificationUUID(eventId);
+            }
+        }
+    }
+
+    @Override
+    public NotificationsStatus getNotificationsStatus(String ownerId, UUID lastSeenNotification, int numOfRecordsToReturn, UUID prevLastScannedEventId) {
+	NotificationsStatusImpl notificationsStatus = new NotificationsStatusImpl();
+	List<NotificationEntity> entities = accessor.getPrevNotifications(ownerId, prevLastScannedEventId, numOfRecordsToReturn).all();
+        if (CollectionUtils.isNotEmpty(entities)) {
+		long lastSeen = UUIDs.unixTimestamp(lastSeenNotification);
+            populateNewNotifications(notificationsStatus, entities, lastSeen);
+        }
+	return notificationsStatus;
+    }
+
+/*
+    @Override
+    public NotificationsStatus getNotificationsStatus(String ownerId,
+                                                      LastSeenNotificationEntity lastSeenNotification,
+                                                      int numOfRecordsToReturn) {
+
+        List<NotificationEntity> notificationEntities =
+            fetchNewNotifications(lastSeenNotification, numOfRecordsToReturn);
+        NotificationsStatusImpl notificationsStatus = new NotificationsStatusImpl();
+        if (CollectionUtils.isEmpty(notificationEntities)) {
+            return notificationsStatus;
+        }
+
+        notificationEntities.forEach(notification -> {
+            if (isNewNotification(lastSeenNotification, notification)) {
+                notificationsStatus.addNewNotificationUUID(notification.getEventId());
+            }
+            notificationsStatus.addNotification(notification);
+        });
+
+        Optional<NotificationEntity> latestNotification = notificationEntities.stream().findFirst();
+        latestNotification.ifPresent(e -> notificationsStatus.setLastScanned(e.getEventId()));
+        return notificationsStatus;
+    }
+
+    private List<NotificationEntity> fetchNewNotifications(
+        LastSeenNotificationEntity lastSeenNotification, int numOfRecordsToReturn) {
+        String ownerId = lastSeenNotification.getOwnerId();
+        UUID lastEventId = lastSeenNotification.getLastEventId();
+        List<NotificationEntity> newNotificationsByOwnerId =
+            getNewNotificationsByOwnerId(ownerId, lastEventId);
+        newNotificationsByOwnerId = fetchMoreIfNeeded(ownerId, newNotificationsByOwnerId,
+            numOfRecordsToReturn, lastEventId);
+        return newNotificationsByOwnerId;
+    }
+
+    private boolean isNewNotification(LastSeenNotificationEntity lastSeenNotification,
+                                      NotificationEntity notification) {
+        return Objects.isNull(lastSeenNotification.getLastEventId()) ||
+            UUIDs.unixTimestamp(notification.getEventId()) >
+                UUIDs.unixTimestamp(lastSeenNotification.getLastEventId());
+    }
+*/
+
+    @Override
+    public void createBatch(List<NotificationEntity> notificationEntities) {
+        BatchStatement batch = new BatchStatement();
+        List<Statement> statements = notificationEntities.stream()
+            .map(mapper::saveQuery)
+            .collect(Collectors.toList());
+        batch.addAll(statements);
+        getSession().execute(batch);
+    }
+
+    @Accessor
+    interface NotificationsAccessor {
+
+        @Query("select * from notifications where owner_id=?")
+        Result<NotificationEntity> list(String ownerId);
+
+        @Query("select * from notifications where owner_id=? limit ?")
+        Result<NotificationEntity> getNotifications(String ownerId, int limit);
+
+        @Query("select * from notifications where owner_id=? and event_id > ? limit ?")
+        Result<NotificationEntity> getNewNotifications(String ownerId, UUID lastScannedEventId, int limit);
+
+        @Query("select * from notifications where owner_id=? and event_id < ? limit ?")
+        Result<NotificationEntity> getPrevNotifications(String ownerId, UUID prevLastScannedEventId, int limit);
+
+        @Query("select count(*) from notifications where owner_id=? and event_id > ? and event_id <= ?")
+        ResultSet getNewNotificationsCount(String ownerId, UUID lastScannedEventId, UUID firstScannedEventId);
+
+        @Query("update notifications set read=true where owner_id=? and event_id=?")
+        ResultSet markAsRead(String ownerId, UUID eventId);
+    }
+
+    private class NotificationsStatusImpl implements NotificationsStatus {
+
+        private List<NotificationEntity> notifications = new ArrayList<>();
+        private List<UUID> newEntries = new ArrayList<>();
+        private UUID lastScanned;
+        private UUID endOfPage;
+        private long numOfNotSeenNotifications = 0;
+
+        void addNotification(NotificationEntity notification) {
+            notifications.add(notification);
+            endOfPage = notification.getEventId();
+        }
+
+        void addNewNotificationUUID(UUID notificationUuid) {
+            newEntries.add(notificationUuid);
+        }
+
+        @Override
+        public List<NotificationEntity> getNotifications() {
+            return Collections.unmodifiableList(notifications);
+        }
+
+        @Override
+        public List<UUID> getNewEntries() {
+            return Collections.unmodifiableList(newEntries);
+        }
+
+        @Override
+        public UUID getLastScanned() {
+            return lastScanned;
+        }
+
+        void setLastScanned(UUID lastScanned) {
+            this.lastScanned = lastScanned;
+        }
+
+        @Override
+        public UUID getEndOfPage() {
+            return endOfPage;
+        }
+
+        @Override
+        public long getNumOfNotSeenNotifications() {
+            return numOfNotSeenNotifications;
+        }
+
+        void setNumOfNotSeenNotifications(long numOfNotSeenNotifications) {
+            this.numOfNotSeenNotifications = numOfNotSeenNotifications;
+        }
+    }
+
+/*
+    private List<NotificationEntity> fetchMoreIfNeeded(String ownerId,
+                                                       List<NotificationEntity> notificationEntities,
+                                                       int numOfRecordsToReturn, UUID lastEventId) {
+
+        if (numOfRecordsToReturn <= notificationEntities.size() || Objects.isNull(lastEventId)) {
+            return notificationEntities;
+        }
+
+        int multiplier = 2;
+        while (numOfRecordsToReturn > notificationEntities.size()) {
+
+            int bring = notificationEntities.size() +
+                (numOfRecordsToReturn - notificationEntities.size()) * multiplier;
+            notificationEntities = getNotificationsByOwnerId(ownerId, bring);
+
+            if (notificationEntities.size() < bring) {
+                return notificationEntities;
+            }
+            multiplier++;
+        }
+        return notificationEntities;
+    }
+*/
+
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/dao/impl/SubscribersDaoCassandraImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/dao/impl/SubscribersDaoCassandraImpl.java
new file mode 100644
index 0000000000..8e8cf9b181
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/dao/impl/SubscribersDaoCassandraImpl.java
@@ -0,0 +1,104 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.notification.dao.impl;
+
+import com.datastax.driver.mapping.Mapper;
+import com.datastax.driver.mapping.Result;
+import com.datastax.driver.mapping.annotations.Accessor;
+import com.datastax.driver.mapping.annotations.Query;
+import com.google.common.collect.Sets;
+import org.openecomp.core.dao.impl.CassandraBaseDao;
+import org.openecomp.core.nosqldb.api.NoSqlDb;
+import org.openecomp.core.nosqldb.factory.NoSqlDbFactory;
+import org.openecomp.sdc.notification.dao.SubscribersDao;
+import org.openecomp.sdc.notification.dao.types.SubscribersEntity;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Objects;
+import java.util.Set;
+
+import static java.util.Objects.isNull;
+
+public class SubscribersDaoCassandraImpl extends CassandraBaseDao<SubscribersEntity> implements
+        SubscribersDao {
+
+    private static final NoSqlDb noSqlDb = NoSqlDbFactory.getInstance().createInterface();
+    private static final Mapper<SubscribersEntity> mapper =
+            noSqlDb.getMappingManager().mapper(SubscribersEntity.class);
+    private static final SubscribersAccessor accessor =
+            noSqlDb.getMappingManager().createAccessor(SubscribersAccessor.class);
+
+
+    @Override
+    protected Object[] getKeys(SubscribersEntity entity) {
+        return new Object[]{entity.getEntityId()};
+    }
+
+    @Override
+    protected Mapper<SubscribersEntity> getMapper() {
+        return mapper;
+    }
+
+    @Override
+    public void subscribe(String ownerId, String entityId) {
+        Objects.requireNonNull(ownerId);
+        Objects.requireNonNull(entityId);
+        accessor.subscribe(Sets.newHashSet(ownerId), entityId);
+    }
+
+    @Override
+    @Deprecated
+    public Collection<SubscribersEntity> list(SubscribersEntity entity) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void unsubscribe(String ownerId, String entityId) {
+        Objects.requireNonNull(ownerId);
+        Objects.requireNonNull(entityId);
+        accessor.unsubscribe(Sets.newHashSet(ownerId), entityId);
+    }
+
+    @Override
+    public Set<String> getSubscribers(String entityId) {
+        Objects.requireNonNull(entityId);
+        SubscribersEntity subscribersEntity = accessor.getSubscribers(entityId).one();
+        if (isNull(subscribersEntity)) {
+            return Collections.emptySet();
+        }
+        return subscribersEntity.getSubscribers();
+    }
+
+    @Accessor
+    interface SubscribersAccessor {
+
+        @Query("select * from notification_subscribers where entity_id=?")
+        Result<SubscribersEntity> getSubscribers(String entityId);
+
+        @Query("update notification_subscribers set subscribers=subscribers+? WHERE entity_id=?")
+        void subscribe(Set<String> ownerId, String entityId);
+
+        @Query("update notification_subscribers set subscribers=subscribers-? WHERE entity_id=?")
+        void unsubscribe(Set<String> ownerId, String entityId);
+    }
+
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/LastNotificationDaoFactoryImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/LastNotificationDaoFactoryImpl.java
new file mode 100644
index 0000000000..7ac9e00967
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/LastNotificationDaoFactoryImpl.java
@@ -0,0 +1,19 @@
+package org.openecomp.sdc.notification.factories.impl;
+
+import org.openecomp.sdc.notification.dao.LastNotificationDao;
+import org.openecomp.sdc.notification.dao.impl.LastNotificationDaoCassandraImpl;
+import org.openecomp.sdc.notification.factories.LastNotificationDaoFactory;
+
+/**
+ * @author itzikpa
+ * @since June 23, 2017
+ */
+
+public class LastNotificationDaoFactoryImpl extends LastNotificationDaoFactory {
+  private static final LastNotificationDao INSTANCE = new LastNotificationDaoCassandraImpl();
+
+  @Override
+  public LastNotificationDao createInterface() {
+    return INSTANCE;
+  }
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/NotificationPropagationManagerFactoryImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/NotificationPropagationManagerFactoryImpl.java
new file mode 100644
index 0000000000..7b9e51e8c9
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/NotificationPropagationManagerFactoryImpl.java
@@ -0,0 +1,19 @@
+package org.openecomp.sdc.notification.factories.impl;
+
+import org.openecomp.sdc.notification.factories.NotificationPropagationManagerFactory;
+import org.openecomp.sdc.notification.factories.PropagationServiceFactory;
+import org.openecomp.sdc.notification.factories.SubscriptionServiceFactory;
+import org.openecomp.sdc.notification.services.NotificationPropagationManager;
+import org.openecomp.sdc.notification.services.impl.NotificationPropagationManagerImpl;
+
+public class NotificationPropagationManagerFactoryImpl extends
+    NotificationPropagationManagerFactory {
+    private static final NotificationPropagationManager INSTANCE = new NotificationPropagationManagerImpl(
+            PropagationServiceFactory.getInstance().createInterface(), SubscriptionServiceFactory
+        .getInstance().createInterface());
+
+    @Override
+    public NotificationPropagationManager createInterface() {
+        return INSTANCE;
+    }
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/NotificationsDaoFactoryImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/NotificationsDaoFactoryImpl.java
new file mode 100644
index 0000000000..edb020637b
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/NotificationsDaoFactoryImpl.java
@@ -0,0 +1,18 @@
+package org.openecomp.sdc.notification.factories.impl;
+
+import org.openecomp.sdc.notification.dao.NotificationsDao;
+import org.openecomp.sdc.notification.dao.impl.NotificationsDaoCassandraImpl;
+import org.openecomp.sdc.notification.factories.NotificationsDaoFactory;
+
+/**
+ * @author Avrahamg
+ * @since June 20, 2017
+ */
+public class NotificationsDaoFactoryImpl extends NotificationsDaoFactory {
+  private static final NotificationsDao INSTANCE = new NotificationsDaoCassandraImpl();
+
+  @Override
+  public NotificationsDao createInterface() {
+    return INSTANCE;
+  }
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/NotificationsServiceFactoryImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/NotificationsServiceFactoryImpl.java
new file mode 100644
index 0000000000..ac265e3c8c
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/NotificationsServiceFactoryImpl.java
@@ -0,0 +1,22 @@
+package org.openecomp.sdc.notification.factories.impl;
+
+import org.openecomp.sdc.notification.factories.LastNotificationDaoFactory;
+import org.openecomp.sdc.notification.factories.NotificationsDaoFactory;
+import org.openecomp.sdc.notification.factories.NotificationsServiceFactory;
+import org.openecomp.sdc.notification.services.NotificationsService;
+import org.openecomp.sdc.notification.services.impl.NotificationsServiceImpl;
+
+/**
+ * @author Avrahamg
+ * @since June 20, 2017
+ */
+public class NotificationsServiceFactoryImpl extends NotificationsServiceFactory {
+  private static final NotificationsService INSTANCE = new NotificationsServiceImpl(
+      LastNotificationDaoFactory.getInstance().createInterface(), NotificationsDaoFactory
+      .getInstance().createInterface());
+
+  @Override
+  public NotificationsService createInterface() {
+    return INSTANCE;
+  }
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/PropagationServiceFactoryImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/PropagationServiceFactoryImpl.java
new file mode 100644
index 0000000000..e5987fe266
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/PropagationServiceFactoryImpl.java
@@ -0,0 +1,16 @@
+package org.openecomp.sdc.notification.factories.impl;
+
+import org.openecomp.sdc.notification.factories.NotificationsDaoFactory;
+import org.openecomp.sdc.notification.factories.PropagationServiceFactory;
+import org.openecomp.sdc.notification.services.PropagationService;
+import org.openecomp.sdc.notification.services.impl.PropagationServiceImpl;
+
+public class PropagationServiceFactoryImpl extends PropagationServiceFactory {
+    private static final PropagationService INSTANCE = new PropagationServiceImpl(
+            NotificationsDaoFactory.getInstance().createInterface());
+
+    @Override
+    public PropagationService createInterface() {
+        return INSTANCE;
+    }
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/SubscribersDaoFactoryImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/SubscribersDaoFactoryImpl.java
new file mode 100644
index 0000000000..fb87b944f9
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/SubscribersDaoFactoryImpl.java
@@ -0,0 +1,15 @@
+package org.openecomp.sdc.notification.factories.impl;
+
+import org.openecomp.sdc.notification.dao.SubscribersDao;
+import org.openecomp.sdc.notification.dao.impl.SubscribersDaoCassandraImpl;
+import org.openecomp.sdc.notification.factories.SubscribersDaoFactory;
+
+
+public class SubscribersDaoFactoryImpl extends SubscribersDaoFactory {
+    private static final SubscribersDao INSTANCE = new SubscribersDaoCassandraImpl();
+
+    @Override
+    public SubscribersDao createInterface() {
+        return INSTANCE;
+    }
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/SubscriptionServiceFactoryImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/SubscriptionServiceFactoryImpl.java
new file mode 100644
index 0000000000..604cff0b5e
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/factories/impl/SubscriptionServiceFactoryImpl.java
@@ -0,0 +1,17 @@
+package org.openecomp.sdc.notification.factories.impl;
+
+import org.openecomp.sdc.notification.factories.SubscribersDaoFactory;
+import org.openecomp.sdc.notification.factories.SubscriptionServiceFactory;
+import org.openecomp.sdc.notification.services.SubscriptionService;
+import org.openecomp.sdc.notification.services.impl.SubscriptionServiceImpl;
+
+
+public class SubscriptionServiceFactoryImpl extends SubscriptionServiceFactory {
+    private static final SubscriptionService INSTANCE = new SubscriptionServiceImpl
+        (SubscribersDaoFactory.getInstance().createInterface());
+
+    @Override
+    public SubscriptionService createInterface() {
+        return INSTANCE;
+    }
+}
\ No newline at end of file
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/services/impl/NotificationPropagationManagerImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/services/impl/NotificationPropagationManagerImpl.java
new file mode 100644
index 0000000000..d381268b3f
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/services/impl/NotificationPropagationManagerImpl.java
@@ -0,0 +1,35 @@
+package org.openecomp.sdc.notification.services.impl;
+
+import org.openecomp.sdc.destinationprovider.impl.MulticastDestination;
+import org.openecomp.sdc.destinationprovider.impl.UnicastDestination;
+import org.openecomp.sdc.notification.dtos.Event;
+import org.openecomp.sdc.notification.services.NotificationPropagationManager;
+import org.openecomp.sdc.notification.services.PropagationService;
+import org.openecomp.sdc.notification.services.SubscriptionService;
+
+/**
+ * @author avrahamg
+ * @since July 10, 2017
+ */
+public class NotificationPropagationManagerImpl implements NotificationPropagationManager {
+
+    private PropagationService propagationService;
+    private SubscriptionService subscriptionService;
+
+    public NotificationPropagationManagerImpl(PropagationService propagationService,
+                                              SubscriptionService subscriptionService) {
+        this.propagationService = propagationService;
+        this.subscriptionService = subscriptionService;
+    }
+
+    @Override
+    public void notifySubscribers(Event event, String ... excludedSubscribers) {
+        propagationService.notify(event, new MulticastDestination(event.getEntityId(),
+            subscriptionService, excludedSubscribers));
+    }
+
+    @Override
+    public void directNotification(Event event, String destinationId) {
+        propagationService.notify(event, new UnicastDestination(destinationId));
+    }
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/services/impl/NotificationsServiceImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/services/impl/NotificationsServiceImpl.java
new file mode 100644
index 0000000000..8a7ab8bdae
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/services/impl/NotificationsServiceImpl.java
@@ -0,0 +1,92 @@
+package org.openecomp.sdc.notification.services.impl;
+
+import org.openecomp.sdc.notification.dao.LastNotificationDao;
+import org.openecomp.sdc.notification.dao.NotificationsDao;
+import org.openecomp.sdc.notification.dao.types.LastSeenNotificationEntity;
+import org.openecomp.sdc.notification.dao.types.NotificationEntity;
+import org.openecomp.sdc.notification.dtos.NotificationsStatus;
+import org.openecomp.sdc.notification.exceptons.NotificationNotExistException;
+import org.openecomp.sdc.notification.services.NotificationsService;
+
+import java.util.List;
+import java.util.Objects;
+import java.util.UUID;
+
+/**
+ * @author Avrahamg
+ * @since June 26, 2017
+ */
+public class NotificationsServiceImpl implements NotificationsService {
+
+    private LastNotificationDao lastNotificationDao;
+    private NotificationsDao notificationsDao;
+
+    public NotificationsServiceImpl(LastNotificationDao lastNotificationDao,
+                                    NotificationsDao notificationsDao) {
+        this.lastNotificationDao = lastNotificationDao;
+        this.notificationsDao = notificationsDao;
+    }
+
+    @Override
+    public LastSeenNotificationEntity getLastNotification(String ownerId) {
+        return new LastSeenNotificationEntity(ownerId,
+            lastNotificationDao.getOwnerLastEventId(ownerId));
+    }
+
+    @Override
+    public void updateLastSeenNotification(String ownerId, UUID eventId)
+    {
+        lastNotificationDao.persistOwnerLastEventId(ownerId, eventId);
+    }
+
+    @Override
+    public NotificationsStatus getNotificationsStatus(String ownerId, UUID lastDelivered, int numOfRecordsToReturn, UUID endOfPage) {
+	if (Objects.isNull(lastDelivered)) {
+		LastSeenNotificationEntity entity = getLastNotification(ownerId);
+		if (Objects.nonNull(entity)) {
+			lastDelivered = entity.getLastEventId();
+		}
+		if (Objects.isNull(lastDelivered)) {
+			lastDelivered = UUID.fromString("00000000-0000-1000-8080-808080808080"); // Lowest time UUID value
+		}
+	}
+	if (Objects.isNull(endOfPage)) {
+		// First page
+	        return notificationsDao.getNotificationsStatus(ownerId, lastDelivered, numOfRecordsToReturn);
+	}
+	else {
+		// Next page
+            return notificationsDao.getNotificationsStatus(ownerId, lastDelivered, numOfRecordsToReturn, endOfPage);
+	}
+    }
+
+    @Override
+    public void markAsRead(String ownerId, String notificationId) throws
+        NotificationNotExistException {
+        NotificationEntity notificationEntity =
+            notificationsDao.get(new NotificationEntity(ownerId, UUID.fromString(notificationId)));
+        if (Objects.isNull(notificationEntity)) {
+            throw new NotificationNotExistException(
+                "Notification '" + notificationId + "' is not related to ownerId" +
+                    " '" + ownerId + "'");
+        }
+        notificationEntity.setRead(true);
+        notificationsDao.update(notificationEntity);
+    }
+
+    @Override
+    public List<NotificationEntity> getNotificationsByOwnerId(String ownerId, int limit) {
+	return notificationsDao.getNotificationsByOwnerId(ownerId, limit);
+    }
+
+    @Override
+    public List<NotificationEntity> getNewNotificationsByOwnerId(String ownerId, UUID eventId) {
+	return notificationsDao.getNewNotificationsByOwnerId(ownerId, eventId);
+    }
+
+    @Override
+    public List<NotificationEntity> getNewNotificationsByOwnerId(String ownerId, UUID eventId, int limit) {
+	return notificationsDao.getNewNotificationsByOwnerId(ownerId, eventId, limit);
+    }
+
+}
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/services/impl/PropagationServiceImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/services/impl/PropagationServiceImpl.java
new file mode 100644
index 0000000000..99d35b3726
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/services/impl/PropagationServiceImpl.java
@@ -0,0 +1,78 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.notification.services.impl;
+
+import com.datastax.driver.core.utils.UUIDs;
+import org.apache.commons.collections4.CollectionUtils;
+import org.openecomp.core.utilities.json.JsonUtil;
+import org.openecomp.sdc.destinationprovider.DestinationProvider;
+import org.openecomp.sdc.notification.dao.NotificationsDao;
+import org.openecomp.sdc.notification.dao.types.NotificationEntity;
+import org.openecomp.sdc.notification.dtos.Event;
+import org.openecomp.sdc.notification.services.PropagationService;
+
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+import static java.util.Objects.requireNonNull;
+
+public class PropagationServiceImpl implements PropagationService {
+
+    private NotificationsDao notificationsDao;
+
+    public PropagationServiceImpl(NotificationsDao notificationsDao) {
+        this.notificationsDao = notificationsDao;
+    }
+
+
+    @Override
+    public void notify(Event event, DestinationProvider destinationProvider) {
+        requireNonNull(event.getEventType());
+        requireNonNull(event.getOriginatorId());
+        List<String> subscribers = destinationProvider.getSubscribers();
+        if (CollectionUtils.isEmpty(subscribers)) {
+            return;
+        }
+        List<NotificationEntity> notificationEntities = subscribers.stream().map(
+            subscriber -> {
+                UUID eventId = UUIDs.timeBased();
+                return createNotificationEntity(event.getEventType(), subscriber,
+                    event.getOriginatorId(), event.getAttributes(), eventId);
+            }).collect(Collectors.toList());
+        if(CollectionUtils.isNotEmpty(notificationEntities)) {
+            notificationsDao.createBatch(notificationEntities);
+        }
+    }
+
+    private NotificationEntity createNotificationEntity(String eventType, String subscriber,
+                                                        String originatorId,
+                                                        Map<String, Object> attributes,
+                                                        UUID eventId) {
+        NotificationEntity notificationEntity =
+            new NotificationEntity(subscriber, eventId, eventType, originatorId);
+        if (attributes != null && !attributes.isEmpty()) {
+            notificationEntity.setEventAttributes(JsonUtil.object2Json(attributes));
+        }
+        return notificationEntity;
+    }
+}
\ No newline at end of file
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/services/impl/SubscriptionServiceImpl.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/services/impl/SubscriptionServiceImpl.java
new file mode 100644
index 0000000000..2a12463fae
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/java/org/openecomp/sdc/notification/services/impl/SubscriptionServiceImpl.java
@@ -0,0 +1,50 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.notification.services.impl;
+
+import org.openecomp.sdc.notification.dao.SubscribersDao;
+import org.openecomp.sdc.notification.services.SubscriptionService;
+
+import java.util.Set;
+
+public class SubscriptionServiceImpl implements SubscriptionService {
+
+    private SubscribersDao subscribersDao;
+
+    public SubscriptionServiceImpl(SubscribersDao subscribersDao) {
+        this.subscribersDao = subscribersDao;
+    }
+
+    @Override
+    public void subscribe(String ownerId, String entityId) {
+        subscribersDao.subscribe(ownerId, entityId);
+    }
+
+    @Override
+    public void unsubscribe(String ownerId, String entityId) {
+        subscribersDao.unsubscribe(ownerId, entityId);
+    }
+
+    @Override
+    public Set<String> getSubscribers(String entityId) {
+        return subscribersDao.getSubscribers(entityId);
+    }
+}
\ No newline at end of file
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/resources/factoryConfiguration.json b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/resources/factoryConfiguration.json
new file mode 100644
index 0000000000..3f1bdf3656
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/main/resources/factoryConfiguration.json
@@ -0,0 +1,9 @@
+{
+  "org.openecomp.sdc.notification.factories.LastNotificationDaoFactory": "org.openecomp.sdc.notification.factories.impl.LastNotificationDaoFactoryImpl",
+  "org.openecomp.sdc.notification.factories.NotificationsDaoFactory": "org.openecomp.sdc.notification.factories.impl.NotificationsDaoFactoryImpl",
+  "org.openecomp.sdc.notification.factories.NotificationsServiceFactory": "org.openecomp.sdc.notification.factories.impl.NotificationsServiceFactoryImpl",
+  "org.openecomp.sdc.notification.factories.SubscribersDaoFactory": "org.openecomp.sdc.notification.factories.impl.SubscribersDaoFactoryImpl",
+  "org.openecomp.sdc.notification.factories.PropagationServiceFactory": "org.openecomp.sdc.notification.factories.impl.PropagationServiceFactoryImpl",
+  "org.openecomp.sdc.notification.factories.SubscriptionServiceFactory": "org.openecomp.sdc.notification.factories.impl.SubscriptionServiceFactoryImpl",
+  "org.openecomp.sdc.notification.factories.NotificationPropagationManagerFactory": "org.openecomp.sdc.notification.factories.impl.NotificationPropagationManagerFactoryImpl"
+}
\ No newline at end of file
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/test/java/org/openecomp/sdc/destinationprovider/impl/MulticastDestinationTest.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/test/java/org/openecomp/sdc/destinationprovider/impl/MulticastDestinationTest.java
new file mode 100644
index 0000000000..a0dd00632e
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/test/java/org/openecomp/sdc/destinationprovider/impl/MulticastDestinationTest.java
@@ -0,0 +1,67 @@
+package org.openecomp.sdc.destinationprovider.impl;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.openecomp.sdc.notification.services.SubscriptionService;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.doReturn;
+
+/**
+ * @author avrahamg
+ * @since July 13, 2017
+ */
+public class MulticastDestinationTest {
+    @Mock
+    private SubscriptionService subscriptionServiceMock;
+
+    private final String excludedSubscriber = "excluded";
+    private Set<String> subscribers = new HashSet<>(Arrays.asList("a", "b", excludedSubscriber));
+    private MulticastDestination multicastDestination;
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+    }
+
+    @Test
+    public void shouldReturnAllSubscribersIfNoExcludedProvided() throws Exception {
+        doReturn(subscribers).when(subscriptionServiceMock).getSubscribers(any());
+        multicastDestination = new MulticastDestination("aa", subscriptionServiceMock);
+        assertEquals(subscribers.size(), multicastDestination.getSubscribers().size());
+        List<String> actualSubscribers = multicastDestination.getSubscribers();
+        assertTrue(actualSubscribers.containsAll(subscribers));
+    }
+
+    @Test
+    public void shouldReturnAllSubscribersExceptExcluded() throws Exception {
+        doReturn(subscribers).when(subscriptionServiceMock).getSubscribers(any());
+        multicastDestination =
+            new MulticastDestination("aa", subscriptionServiceMock, excludedSubscriber);
+        List<String> actualSubscribers = multicastDestination.getSubscribers();
+        assertNotEquals(this.subscribers.size(), actualSubscribers.size());
+        assertFalse(actualSubscribers.containsAll(subscribers));
+        assertFalse(actualSubscribers.contains(excludedSubscriber));
+    }
+
+    @Test(expected = UnsupportedOperationException.class)
+    public void shouldThrowUnsupportedOperationExceptionWhenTryingToChangeSubscribersList() throws
+        Exception {
+        doReturn(subscribers).when(subscriptionServiceMock).getSubscribers(any());
+        multicastDestination =
+            new MulticastDestination("aa", subscriptionServiceMock, excludedSubscriber);
+        List<String> actualSubscribers = multicastDestination.getSubscribers();
+        actualSubscribers.add("sss");
+    }
+}
\ No newline at end of file
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/test/java/org/openecomp/sdc/notification/services/impl/NotificationPropagationManagerImplTest.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/test/java/org/openecomp/sdc/notification/services/impl/NotificationPropagationManagerImplTest.java
new file mode 100644
index 0000000000..0eb2b6235c
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/test/java/org/openecomp/sdc/notification/services/impl/NotificationPropagationManagerImplTest.java
@@ -0,0 +1,64 @@
+package org.openecomp.sdc.notification.services.impl;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.mockito.InjectMocks;
+import org.mockito.Matchers;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.mockito.Spy;
+import org.openecomp.sdc.destinationprovider.DestinationProvider;
+import org.openecomp.sdc.destinationprovider.impl.MulticastDestination;
+import org.openecomp.sdc.destinationprovider.impl.UnicastDestination;
+import org.openecomp.sdc.notification.dtos.Event;
+import org.openecomp.sdc.notification.services.PropagationService;
+import org.openecomp.sdc.notification.services.SubscriptionService;
+
+import static org.mockito.Mockito.verify;
+
+
+/**
+ * @author avrahamg
+ * @since July 13, 2017
+ */
+public class NotificationPropagationManagerImplTest {
+    @Mock
+    private PropagationService propagationServiceMock;
+    @Mock
+    private SubscriptionService subscriptionServiceMock;
+    @Mock
+    private Event eventMock;
+    @Captor
+    private ArgumentCaptor<DestinationProvider> destinationProviderCaptor;
+
+    @Spy
+    @InjectMocks
+    private NotificationPropagationManagerImpl notificationPropagationManager;
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+    }
+
+    @Test
+    public void shouldCallPropagationServiceNotifyWithMulticastDestinationWhenNotifySubscribers()
+        throws Exception {
+        notificationPropagationManager.notifySubscribers(eventMock);
+        verify(propagationServiceMock).notify(Matchers.eq(eventMock), destinationProviderCaptor
+            .capture());
+        Assert.assertTrue(destinationProviderCaptor.getValue() instanceof MulticastDestination);
+
+    }
+
+    @Test
+    public void shouldCallPropagationServiceNotifyWithUnicastDestinationWhenDirectNotification()
+        throws Exception {
+        notificationPropagationManager.directNotification(eventMock, "aaa");
+        verify(propagationServiceMock).notify(Matchers.eq(eventMock), destinationProviderCaptor
+            .capture());
+        Assert.assertTrue(destinationProviderCaptor.getValue() instanceof UnicastDestination);
+    }
+}
\ No newline at end of file
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/test/java/org/openecomp/sdc/notification/services/impl/NotificationsServiceImplTest.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/test/java/org/openecomp/sdc/notification/services/impl/NotificationsServiceImplTest.java
new file mode 100644
index 0000000000..a20d0cce45
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/test/java/org/openecomp/sdc/notification/services/impl/NotificationsServiceImplTest.java
@@ -0,0 +1,50 @@
+package org.openecomp.sdc.notification.services.impl;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.mockito.Spy;
+import org.openecomp.sdc.notification.dao.LastNotificationDao;
+import org.openecomp.sdc.notification.dao.NotificationsDao;
+import org.openecomp.sdc.notification.dao.types.NotificationEntity;
+import org.openecomp.sdc.notification.exceptons.NotificationNotExistException;
+
+import java.util.UUID;
+
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+/**
+ * @author avrahamg
+ * @since July 13, 2017
+ */
+public class NotificationsServiceImplTest {
+    @Mock
+    private LastNotificationDao lastNotificationDao;
+    @Mock
+    private NotificationsDao notificationsDao;
+    @Spy
+    @InjectMocks
+    private NotificationsServiceImpl notificationsService;
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+    }
+
+    public void shouldCallNotificationsDaoIfNotificationEntityExist() throws Exception {
+        doReturn(new NotificationEntity()).when(notificationsDao).get(any());
+        notificationsService.markAsRead("ownerId", UUID.randomUUID().toString());
+        verify(notificationsDao, times(1)).update(any());
+    }
+
+    @Test(expected = NotificationNotExistException.class)
+    public void shouldThrowExceptionIfOwnerIdAndNotificationIdDontRelate() throws Exception {
+        doReturn(null).when(notificationsDao).get(any());
+        notificationsService.markAsRead("ownerId", UUID.randomUUID().toString());
+    }
+}
\ No newline at end of file
diff --git a/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/test/java/org/openecomp/sdc/notification/services/impl/PropagationServiceImplTest.java b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/test/java/org/openecomp/sdc/notification/services/impl/PropagationServiceImplTest.java
new file mode 100644
index 0000000000..866dec0d6d
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-notification-lib/openecomp-sdc-notification-core/src/test/java/org/openecomp/sdc/notification/services/impl/PropagationServiceImplTest.java
@@ -0,0 +1,96 @@
+package org.openecomp.sdc.notification.services.impl;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.mockito.Spy;
+import org.openecomp.sdc.destinationprovider.DestinationProvider;
+import org.openecomp.sdc.notification.dao.NotificationsDao;
+import org.openecomp.sdc.notification.dtos.Event;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+
+import static org.mockito.Matchers.anyList;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+
+/**
+ * @author avrahamg
+ * @since July 13, 2017
+ */
+public class PropagationServiceImplTest {
+    @Mock
+    private NotificationsDao notificationsDaoMock;
+    @Mock
+    private Event eventMock;
+    @Mock
+    private DestinationProvider destinationProviderMock;
+    @Captor
+    private ArgumentCaptor<List> createBatchCaptor;
+
+    @Rule
+    public ExpectedException thrown= ExpectedException.none();
+
+    @InjectMocks
+    @Spy
+    private PropagationServiceImpl propagationService;
+    private List<String> subscribersList = Arrays.asList("A1, A2, A3");;
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+        initEventMock();
+    }
+
+    @Test
+    public void shouldCallToNotificationsDaoWithCreateBatchWithNotificationEntitiesAsNumberOfSubscribers()
+        throws Exception {
+        doReturn(subscribersList).when(destinationProviderMock).getSubscribers();
+        propagationService.notify(eventMock, destinationProviderMock);
+        verify(notificationsDaoMock).createBatch(createBatchCaptor.capture());
+        Assert.assertEquals(createBatchCaptor.getValue().size(), subscribersList.size());
+    }
+
+    @Test
+    public void shouldNotCallNotificationDaoIfSubscriberIsNull() throws Exception {
+        doReturn(Collections.EMPTY_LIST).when(destinationProviderMock).getSubscribers();
+        verify(notificationsDaoMock,never()).createBatch(anyList());
+    }
+
+    @Test
+    public void shouldThrowExceptionIfEventTypeIsNull() throws Exception {
+        doReturn(null).when(eventMock).getEventType();
+        callToNotify();
+    }
+
+    @Test
+    public void shouldThrowExceptionIfOriginatorIdIsNull() throws Exception {
+        doReturn(null).when(eventMock).getOriginatorId();
+        callToNotify();
+    }
+
+    private void callToNotify() {
+        thrown.expect(NullPointerException.class);
+        propagationService.notify(eventMock, destinationProviderMock);
+    }
+
+    private void initEventMock() {
+        doReturn("eventType").when(eventMock).getEventType();
+        doReturn("originator").when(eventMock).getOriginatorId();
+        doReturn("entity").when(eventMock).getEntityId();
+        doReturn(new HashMap<>()).when(eventMock).getAttributes();
+    }
+
+
+}
\ No newline at end of file