Add collaboration feature

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

7 files changed, 504 insertions, 0 deletions

diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/pom.xml b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/pom.xml
new file mode 100644
index 0000000000..6b96a4d328
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/pom.xml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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>
+
+    <parent>
+        <groupId>org.openecomp.sdc</groupId>
+        <artifactId>item-rest</artifactId>
+        <version>1.2.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>item-rest-services</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.openecomp.sdc</groupId>
+            <artifactId>openecomp-sdc-item-permissions-manager</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.openecomp.sdc</groupId>
+            <artifactId>item-rest-types</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.openecomp.sdc</groupId>
+            <artifactId>openecomp-sdc-common-rest</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>javax.inject</groupId>
+            <artifactId>javax.inject</artifactId>
+            <version>1</version>
+        </dependency>
+        <!-- CXF -->
+        <dependency>
+            <groupId>org.apache.cxf</groupId>
+            <artifactId>cxf-rt-frontend-jaxrs</artifactId>
+            <version>${cxf.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.openecomp.sdc</groupId>
+            <artifactId>openecomp-sdc-conflict-manager</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-context</artifactId>
+            <version>${spring.framework.version}</version>
+        </dependency>
+    </dependencies>
+
+
+</project>
\ No newline at end of file
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/Versions.java b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/Versions.java
new file mode 100644
index 0000000000..7d7b0854d9
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/Versions.java
@@ -0,0 +1,88 @@
+package org.openecomp.sdcrests.item.rest;
+
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import io.swagger.annotations.ApiParam;
+import org.openecomp.sdcrests.item.types.ActivityLogDto;
+import org.openecomp.sdcrests.item.types.RevisionDto;
+import org.openecomp.sdcrests.item.types.VersionActionRequestDto;
+import org.openecomp.sdcrests.item.types.VersionDto;
+import org.openecomp.sdcrests.item.types.VersionRequestDto;
+import org.springframework.validation.annotation.Validated;
+
+import javax.validation.constraints.NotNull;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.GET;
+import javax.ws.rs.HeaderParam;
+import javax.ws.rs.POST;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
+import static org.openecomp.sdcrests.common.RestConstants.USER_ID_HEADER_PARAM;
+import static org.openecomp.sdcrests.common.RestConstants.USER_MISSING_ERROR_MSG;
+
+@Path("/v1.0/items/{itemId}/versions")
+@Produces(MediaType.APPLICATION_JSON)
+@Consumes(MediaType.APPLICATION_JSON)
+@Api(value = "Item Versions")
+@Validated
+public interface Versions {
+
+  @GET
+  @Path("/")
+  @ApiOperation(value = "Lists item versions",
+      response = VersionDto.class,
+      responseContainer = "List")
+  Response list(@PathParam("itemId") String itemId,
+                @NotNull(message = USER_MISSING_ERROR_MSG)
+                @HeaderParam(USER_ID_HEADER_PARAM) String user);
+
+  @POST
+  @Path("/{versionId}")
+  @ApiOperation(value = "Creates a new item version")
+  Response create(VersionRequestDto request,
+                  @PathParam("itemId") String itemId,
+                  @PathParam("versionId") String versionId,
+                  @NotNull(message = USER_MISSING_ERROR_MSG)
+                  @HeaderParam(USER_ID_HEADER_PARAM) String user);
+
+  @GET
+  @Path("/{versionId}")
+  @ApiOperation(value = "Gets item version", response = VersionDto.class)
+  Response get(@PathParam("itemId") String itemId,
+               @PathParam("versionId") String versionId,
+               @NotNull(message = USER_MISSING_ERROR_MSG)
+               @HeaderParam(USER_ID_HEADER_PARAM) String user);
+
+  @GET
+  @Path("/{versionId}/activity-logs")
+  @ApiOperation(value = "Gets item version activity log",
+      response = ActivityLogDto.class,
+      responseContainer = "List")
+  Response getActivityLog(@ApiParam("Item Id") @PathParam("itemId") String itemId,
+                          @ApiParam("Version Id") @PathParam("versionId") String versionId,
+                          @NotNull(message = USER_MISSING_ERROR_MSG)
+                          @HeaderParam(USER_ID_HEADER_PARAM) String user);
+
+  @GET
+  @Path("/{versionId}/revisions")
+  @ApiOperation(value = "Gets item version revisions", response = RevisionDto.class,
+      responseContainer = "List")
+  Response listRevisions(@PathParam("itemId") String itemId,
+                         @PathParam("versionId") String versionId,
+                         @NotNull(message = USER_MISSING_ERROR_MSG)
+               @HeaderParam(USER_ID_HEADER_PARAM) String user);
+
+  @PUT
+  @Path("/{versionId}/actions")
+  @ApiOperation(value = "Acts on item version")
+  Response actOn(VersionActionRequestDto request,
+                 @PathParam("itemId") String itemId,
+                 @PathParam("versionId") String versionId,
+                 @NotNull(message = USER_MISSING_ERROR_MSG)
+                 @HeaderParam(USER_ID_HEADER_PARAM) String user);
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/mapping/MapActivityLogEntityToDto.java b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/mapping/MapActivityLogEntityToDto.java
new file mode 100644
index 0000000000..307b555720
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/mapping/MapActivityLogEntityToDto.java
@@ -0,0 +1,41 @@
+/*-
+ * ============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.sdcrests.item.rest.mapping;
+
+import org.openecomp.sdc.activitylog.dao.type.ActivityLogEntity;
+import org.openecomp.sdcrests.item.types.ActivityLogDto;
+import org.openecomp.sdcrests.item.types.ActivityStatus;
+import org.openecomp.sdcrests.mapping.MappingBase;
+
+public class MapActivityLogEntityToDto
+    extends MappingBase<ActivityLogEntity, ActivityLogDto> {
+
+
+  @Override
+  public void doMapping(ActivityLogEntity source, ActivityLogDto target) {
+    target.setId(source.getId());
+    target.setTimestamp(source.getTimestamp());
+    target.setType(source.getType().name());
+    target.setComment(source.getComment());
+    target.setUser(source.getUser());
+    target.setStatus(new ActivityStatus(source.isSuccess(), source.getMessage()));
+  }
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/mapping/MapItemToDto.java b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/mapping/MapItemToDto.java
new file mode 100644
index 0000000000..26bd58d950
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/mapping/MapItemToDto.java
@@ -0,0 +1,15 @@
+package org.openecomp.sdcrests.item.rest.mapping;
+
+import org.openecomp.sdc.versioning.types.Item;
+import org.openecomp.sdcrests.item.types.ItemDto;
+import org.openecomp.sdcrests.mapping.MappingBase;
+
+public class MapItemToDto extends MappingBase<Item, ItemDto> {
+  @Override
+  public void doMapping(Item source, ItemDto target) {
+    target.setId(source.getId());
+    target.setType(source.getType());
+    target.setName(source.getName());
+    target.setDescription(source.getDescription());
+  }
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/mapping/MapRevisionToDto.java b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/mapping/MapRevisionToDto.java
new file mode 100644
index 0000000000..861f571c5f
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/mapping/MapRevisionToDto.java
@@ -0,0 +1,15 @@
+package org.openecomp.sdcrests.item.rest.mapping;
+
+import org.openecomp.sdc.versioning.dao.types.Revision;
+import org.openecomp.sdcrests.item.types.RevisionDto;
+import org.openecomp.sdcrests.mapping.MappingBase;
+
+public class MapRevisionToDto extends MappingBase<Revision, RevisionDto> {
+  @Override
+  public void doMapping(Revision source, RevisionDto target) {
+    target.setId(source.getId());
+    target.setMessage(source.getMessage());
+    target.setUser(source.getUser());
+    target.setTime(source.getTime());
+  }
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/mapping/MapVersionToDto.java b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/mapping/MapVersionToDto.java
new file mode 100644
index 0000000000..5fbd9a9e8d
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/mapping/MapVersionToDto.java
@@ -0,0 +1,20 @@
+package org.openecomp.sdcrests.item.rest.mapping;
+
+import org.openecomp.sdc.versioning.dao.types.Version;
+import org.openecomp.sdcrests.item.types.VersionDto;
+import org.openecomp.sdcrests.mapping.MappingBase;
+
+public class MapVersionToDto extends MappingBase<Version, VersionDto> {
+  @Override
+  public void doMapping(Version source, VersionDto target) {
+    target.setId(source.getId());
+    target.setName(source.getName());
+    target.setDescription(source.getDescription());
+    target.setBaseId(source.getBaseId());
+    target.setStatus(source.getStatus());
+    target.setState(source.getState());
+    target.setCreationTime(source.getCreationTime());
+    target.setModificationTime(source.getModificationTime());
+    target.setAdditionalInfo(source.getAdditionalInfo());
+  }
+}
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/services/VersionsImpl.java b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/services/VersionsImpl.java
new file mode 100644
index 0000000000..466734208d
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/item-rest/item-rest-services/src/main/java/org/openecomp/sdcrests/item/rest/services/VersionsImpl.java
@@ -0,0 +1,270 @@
+/*-
+ * ============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.sdcrests.item.rest.services;
+
+import org.openecomp.sdc.activitylog.ActivityLogManager;
+import org.openecomp.sdc.activitylog.ActivityLogManagerFactory;
+import org.openecomp.sdc.activitylog.dao.type.ActivityLogEntity;
+import org.openecomp.sdc.activitylog.dao.type.ActivityType;
+import org.openecomp.sdc.common.errors.CoreException;
+import org.openecomp.sdc.common.errors.Messages;
+import org.openecomp.sdc.conflicts.ConflictsManager;
+import org.openecomp.sdc.conflicts.ConflictsManagerFactory;
+import org.openecomp.sdc.itempermissions.ItemPermissionsManager;
+import org.openecomp.sdc.itempermissions.ItemPermissionsManagerFactory;
+import org.openecomp.sdc.logging.api.Logger;
+import org.openecomp.sdc.logging.api.LoggerFactory;
+import org.openecomp.sdc.logging.context.MdcUtil;
+import org.openecomp.sdc.logging.types.LoggerServiceName;
+import org.openecomp.sdc.notification.dtos.Event;
+import org.openecomp.sdc.notification.factories.NotificationPropagationManagerFactory;
+import org.openecomp.sdc.notification.services.NotificationPropagationManager;
+import org.openecomp.sdc.versioning.ItemManager;
+import org.openecomp.sdc.versioning.ItemManagerFactory;
+import org.openecomp.sdc.versioning.VersioningManager;
+import org.openecomp.sdc.versioning.VersioningManagerFactory;
+import org.openecomp.sdc.versioning.dao.types.SynchronizationState;
+import org.openecomp.sdc.versioning.dao.types.Version;
+import org.openecomp.sdc.versioning.errors.RevisionIdNotFoundErrorBuilder;
+import org.openecomp.sdc.versioning.types.NotificationEventTypes;
+import org.openecomp.sdcrests.item.rest.Versions;
+import org.openecomp.sdcrests.item.rest.mapping.MapActivityLogEntityToDto;
+import org.openecomp.sdcrests.item.rest.mapping.MapRevisionToDto;
+import org.openecomp.sdcrests.item.rest.mapping.MapVersionToDto;
+import org.openecomp.sdcrests.item.types.ActivityLogDto;
+import org.openecomp.sdcrests.item.types.CommitRequestDto;
+import org.openecomp.sdcrests.item.types.RevisionDto;
+import org.openecomp.sdcrests.item.types.RevisionRequestDto;
+import org.openecomp.sdcrests.item.types.VersionActionRequestDto;
+import org.openecomp.sdcrests.item.types.VersionDto;
+import org.openecomp.sdcrests.item.types.VersionRequestDto;
+import org.openecomp.sdcrests.wrappers.GenericCollectionWrapper;
+import org.springframework.context.annotation.Scope;
+import org.springframework.stereotype.Service;
+
+import javax.inject.Named;
+import javax.ws.rs.core.Response;
+import java.util.HashMap;
+import java.util.Map;
+
+import static org.openecomp.sdc.itempermissions.notifications.NotificationConstants.PERMISSION_USER;
+import static org.openecomp.sdc.versioning.VersioningNotificationConstansts.ITEM_ID;
+import static org.openecomp.sdc.versioning.VersioningNotificationConstansts.ITEM_NAME;
+import static org.openecomp.sdc.versioning.VersioningNotificationConstansts.SUBMIT_DESCRIPTION;
+import static org.openecomp.sdc.versioning.VersioningNotificationConstansts.VERSION_ID;
+import static org.openecomp.sdc.versioning.VersioningNotificationConstansts.VERSION_NAME;
+
+@Named
+@Service("versions")
+@Scope(value = "prototype")
+public class VersionsImpl implements Versions {
+
+  private static final String COMMIT_ITEM_ACTION = "Commit_Item";
+  private static final Logger LOGGER = LoggerFactory.getLogger(VersionsImpl.class);
+
+  private ItemPermissionsManager permissionsManager =
+      ItemPermissionsManagerFactory.getInstance().createInterface();
+  private ItemManager itemManager =
+      ItemManagerFactory.getInstance().createInterface();
+  private VersioningManager versioningManager =
+      VersioningManagerFactory.getInstance().createInterface();
+  private ConflictsManager conflictsManager =
+      ConflictsManagerFactory.getInstance().createInterface();
+  private ActivityLogManager activityLogManager =
+      ActivityLogManagerFactory.getInstance().createInterface();
+  private NotificationPropagationManager notifier =
+      NotificationPropagationManagerFactory.getInstance().createInterface();
+
+  @Override
+  public Response list(String itemId, String user) {
+    GenericCollectionWrapper<VersionDto> results = new GenericCollectionWrapper<>();
+    MapVersionToDto mapper = new MapVersionToDto();
+
+    versioningManager.list(itemId)
+        .forEach(version -> results.add(mapper.applyMapping(version, VersionDto.class)));
+    return Response.ok(results).build();
+  }
+
+  @Override
+  public Response create(VersionRequestDto request, String itemId, String baseVersionId,
+                         String user) {
+    Version version = new Version();
+    version.setBaseId(baseVersionId);
+    version.setDescription(request.getDescription());
+
+    version = versioningManager.create(itemId, version, request.getCreationMethod());
+
+    VersionDto versionDto = new MapVersionToDto().applyMapping(version, VersionDto.class);
+
+    activityLogManager.logActivity(new ActivityLogEntity(itemId, version,
+        ActivityType.Create_Version, user, true, "", ""));
+
+    return Response.ok(versionDto).build();
+  }
+
+  @Override
+  public Response get(String itemId, String versionId, String user) {
+    Version version = getVersion(itemId, new Version(versionId));
+    VersionDto versionDto = new MapVersionToDto().applyMapping(version, VersionDto.class);
+    return Response.ok(versionDto).build();
+  }
+
+  @Override
+  public Response getActivityLog(String itemId, String versionId, String user) {
+    MdcUtil.initMdc(LoggerServiceName.Get_List_Activity_Log.toString());
+
+    GenericCollectionWrapper<ActivityLogDto> results = new GenericCollectionWrapper<>();
+    MapActivityLogEntityToDto mapper = new MapActivityLogEntityToDto();
+
+    activityLogManager.listLoggedActivities(itemId, new Version(versionId))
+        .forEach(loggedActivity -> results
+            .add(mapper.applyMapping(loggedActivity, ActivityLogDto.class)));
+
+    return Response.ok(results).build();
+  }
+
+  @Override
+  public Response listRevisions(String itemId, String versionId, String user) {
+    GenericCollectionWrapper<RevisionDto> results = new GenericCollectionWrapper<>();
+    MapRevisionToDto mapper = new MapRevisionToDto();
+
+    versioningManager.listRevisions(itemId, new Version(versionId))
+        .forEach(revision -> results.add(mapper.applyMapping(revision, RevisionDto.class)));
+    return Response.ok(results).build();
+  }
+
+  @Override
+  public Response actOn(VersionActionRequestDto request, String itemId, String versionId,
+                        String user) {
+    Version version = new Version(versionId);
+    switch (request.getAction()) {
+      case Sync:
+        sync(itemId, version);
+        break;
+      case Commit:
+        if (!permissionsManager.isAllowed(itemId, user, COMMIT_ITEM_ACTION)) {
+          return Response.status(Response.Status.FORBIDDEN)
+              .entity(new Exception(Messages.PERMISSIONS_ERROR.getErrorMessage())).build();
+        }
+        commit(request.getCommitRequest(), itemId, version, user);
+        break;
+      case Revert:
+        revert(request.getRevisionRequest(), itemId, versionId);
+        break;
+      case Reset:
+        throw new UnsupportedOperationException("Action reset not supported.");
+      default:
+    }
+    return Response.ok().build();
+  }
+
+
+  private void revert(RevisionRequestDto request, String itemId, String versionId) {
+    if (request.getRevisionId() == null) {
+      throw new CoreException(new RevisionIdNotFoundErrorBuilder().build());
+    }
+
+    versioningManager.revert(itemId, new Version(versionId), request.getRevisionId());
+  }
+
+  private void sync(String itemId, Version version) {
+    versioningManager.sync(itemId, version);
+    conflictsManager.finalizeMerge(itemId, version);
+  }
+
+  private void commit(CommitRequestDto request, String itemId, Version version, String user) {
+
+    String message = request == null ? "" : request.getMessage();
+
+    versioningManager.publish(itemId, version, message);
+    notifyUsers(itemId, version, message, user, NotificationEventTypes.COMMIT);
+
+    activityLogManager.logActivity(new ActivityLogEntity(itemId, version,
+        ActivityType.Commit, user, true, "", message));
+  }
+
+  private void notifyUsers(String itemId, Version version, String message,
+                           String userName, NotificationEventTypes eventType) {
+    Map<String, Object> eventProperties = new HashMap<>();
+    eventProperties.put(ITEM_NAME, itemManager.get(itemId).getName());
+    eventProperties.put(ITEM_ID, itemId);
+
+    Version ver = versioningManager.get(itemId, version);
+    eventProperties.put(VERSION_NAME, ver.getName());
+    eventProperties.put(VERSION_ID, ver.getId());
+
+    eventProperties.put(SUBMIT_DESCRIPTION, message);
+    eventProperties.put(PERMISSION_USER, userName);
+
+    Event syncEvent = new SyncEvent(eventType.getEventName(), itemId, eventProperties, itemId);
+    try {
+      notifier.notifySubscribers(syncEvent, userName);
+    } catch (Exception e) {
+      LOGGER.error("Failed to send sync notification to users subscribed o item '" + itemId);
+    }
+  }
+
+  private class SyncEvent implements Event {
+
+    private String eventType;
+    private String originatorId;
+    private Map<String, Object> attributes;
+    private String entityId;
+
+    public SyncEvent(String eventType, String originatorId,
+                     Map<String, Object> attributes, String entityId) {
+      this.eventType = eventType;
+      this.originatorId = originatorId;
+      this.attributes = attributes;
+      this.entityId = entityId;
+    }
+
+    @Override
+    public String getEventType() {
+      return eventType;
+    }
+
+    @Override
+    public String getOriginatorId() {
+      return originatorId;
+    }
+
+    @Override
+    public Map<String, Object> getAttributes() {
+      return attributes;
+    }
+
+    @Override
+    public String getEntityId() {
+      return entityId;
+    }
+  }
+
+  private Version getVersion(String itemId, Version version) {
+    version = versioningManager.get(itemId, version);
+
+    if (version.getState().getSynchronizationState() != SynchronizationState.Merging &&
+        conflictsManager.isConflicted(itemId, version)) { // looks for sdc applicative conflicts
+      version.getState().setSynchronizationState(SynchronizationState.Merging);
+    }
+    return version;
+  }
+}