Workflow Docker containers

1. Implemented workflow init container.
2. Implemented workflow backend container.
3. Added a placeholder for frontend module container.
4. Modifiled directory structure and POM files.
5. Added a ReadMe with sample commands to detail how to run the containers.

Change-Id: Ib110fcc104ce72ff28fce514a1475a032cc2d82b
Issue-ID: SDC-1482
Signed-off-by: priyanshu <pagarwal@amdocs.com>
Signed-off-by: vempo <vitaliy.emporopulo@amdocs.com>
Signed-off-by: priyanshu <pagarwal@amdocs.com>

35 files changed, 0 insertions, 1230 deletions

diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/SpringBootWebApplication.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/SpringBootWebApplication.java
deleted file mode 100644
index b7e3b345..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/SpringBootWebApplication.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package org.onap.sdc.workflow;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.boot.web.embedded.jetty.JettyServletWebServerFactory;
-import org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory;
-import org.springframework.context.annotation.Bean;
-
-@SpringBootApplication
-public class SpringBootWebApplication {
-
-    public static void main(String[] args) {
-        SpringApplication.run(SpringBootWebApplication.class, args);
-    }
-
-    @Bean
-    public ConfigurableServletWebServerFactory webServerFactory() {
-        return new JettyServletWebServerFactory();
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/RestConstants.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/RestConstants.java
deleted file mode 100644
index 8f02be0f..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/RestConstants.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package org.onap.sdc.workflow.api;
-
-public class RestConstants {
-
-    private RestConstants() {
-    }
-
-    public static final String USER_ID_HEADER_PARAM = "USER_ID";
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/WorkflowController.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/WorkflowController.java
deleted file mode 100644
index bb4320cc..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/WorkflowController.java
+++ /dev/null
@@ -1,66 +0,0 @@
-package org.onap.sdc.workflow.api;
-
-import static org.onap.sdc.workflow.api.RestConstants.USER_ID_HEADER_PARAM;
-
-import io.swagger.annotations.Api;
-import io.swagger.annotations.ApiOperation;
-import org.onap.sdc.workflow.api.types.CollectionWrapper;
-import org.onap.sdc.workflow.persistence.types.Workflow;
-import org.onap.sdc.workflow.services.WorkflowManager;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.annotation.Qualifier;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.MediaType;
-import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.PutMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestHeader;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-@RequestMapping("/workflows")
-@Api("Workflows")
-@RestController("workflowController")
-public class WorkflowController {
-
-    private final WorkflowManager workflowManager;
-
-    @Autowired
-    public WorkflowController(@Qualifier("workflowManager") WorkflowManager workflowManager) {
-        this.workflowManager = workflowManager;
-    }
-
-    @GetMapping(produces = MediaType.APPLICATION_JSON_VALUE)
-    @ApiOperation("List workflows")
-    public CollectionWrapper<Workflow> list(@RequestHeader(USER_ID_HEADER_PARAM) String user) {
-        return new CollectionWrapper<>(workflowManager.list());
-    }
-
-    @PostMapping(consumes = MediaType.APPLICATION_JSON_VALUE)
-    @ApiOperation("Create workflow")
-    public ResponseEntity<Workflow> create(@RequestBody Workflow workflow,
-            @RequestHeader(USER_ID_HEADER_PARAM) String user) {
-        return new ResponseEntity<>(workflowManager.create(workflow), HttpStatus.CREATED);
-    }
-
-    @GetMapping(path = "/{workflowId}")
-    @ApiOperation("Get workflow")
-    public Workflow get(@PathVariable("workflowId") String workflowId,
-            @RequestHeader(USER_ID_HEADER_PARAM) String user) {
-        Workflow workflow = new Workflow();
-        workflow.setId(workflowId);
-        return workflowManager.get(workflow);
-    }
-
-    @PutMapping(path = "/{workflowId}", consumes = MediaType.APPLICATION_JSON_VALUE)
-    @ApiOperation("Update workflow")
-    public Workflow update(@RequestBody Workflow workflow, @PathVariable("workflowId") String workflowId,
-            @RequestHeader(USER_ID_HEADER_PARAM) String user) {
-        workflow.setId(workflowId);
-        workflowManager.update(workflow);
-        return workflow;
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/WorkflowVersionController.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/WorkflowVersionController.java
deleted file mode 100644
index 6214f1bb..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/WorkflowVersionController.java
+++ /dev/null
@@ -1,117 +0,0 @@
-package org.onap.sdc.workflow.api;
-
-import static org.onap.sdc.workflow.api.RestConstants.USER_ID_HEADER_PARAM;
-
-import io.swagger.annotations.Api;
-import io.swagger.annotations.ApiOperation;
-import org.onap.sdc.workflow.api.types.CollectionWrapper;
-import org.onap.sdc.workflow.api.types.VersionRequestDto;
-import org.onap.sdc.workflow.api.types.VersionStateDto;
-import org.onap.sdc.workflow.persistence.types.ArtifactEntity;
-import org.onap.sdc.workflow.persistence.types.WorkflowVersion;
-import org.onap.sdc.workflow.services.WorkflowVersionManager;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.annotation.Qualifier;
-import org.springframework.core.io.InputStreamResource;
-import org.springframework.core.io.Resource;
-import org.springframework.http.HttpHeaders;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.MediaType;
-import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.DeleteMapping;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.PutMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestHeader;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-import org.springframework.web.multipart.MultipartFile;
-
-@RequestMapping("/workflows/{workflowId}/versions")
-@Api("Workflow versions")
-@RestController("workflowsVersionController")
-public class WorkflowVersionController {
-
-    private final WorkflowVersionManager workflowVersionManager;
-
-    @Autowired
-    public WorkflowVersionController(
-            @Qualifier("workflowVersionManager") WorkflowVersionManager workflowVersionManager) {
-        this.workflowVersionManager = workflowVersionManager;
-    }
-
-    @GetMapping
-    @ApiOperation("List workflow versions")
-    public CollectionWrapper<WorkflowVersion> list(@PathVariable("workflowId") String workflowId,
-            @RequestHeader(USER_ID_HEADER_PARAM) String user) {
-        return new CollectionWrapper<>(workflowVersionManager.list(workflowId));
-    }
-
-    @PostMapping
-    @ApiOperation("Create workflow version")
-    public ResponseEntity<WorkflowVersion> create(@RequestBody VersionRequestDto versionRequest,
-            @PathVariable("workflowId") String workflowId, @RequestHeader(USER_ID_HEADER_PARAM) String user) {
-
-        WorkflowVersion createdVersion = workflowVersionManager.create(workflowId, versionRequest);
-        return new ResponseEntity<>(createdVersion, HttpStatus.CREATED);
-    }
-
-    @GetMapping("/{versionId}")
-    @ApiOperation("Get workflow version")
-    public WorkflowVersion get(@PathVariable("workflowId") String workflowId,
-            @PathVariable("versionId") String versionId, @RequestHeader(USER_ID_HEADER_PARAM) String user) {
-        return workflowVersionManager.get(workflowId, versionId);
-    }
-
-    @PutMapping("/{versionId}")
-    @ApiOperation("Update workflow version")
-    public void update(@RequestBody WorkflowVersion version, @PathVariable("workflowId") String workflowId,
-            @PathVariable("versionId") String versionId, @RequestHeader(USER_ID_HEADER_PARAM) String user) {
-        version.setId(versionId);
-        workflowVersionManager.update(workflowId, version);
-    }
-
-    @GetMapping("/{versionId}/state")
-    @ApiOperation("Get workflow version state")
-    public VersionStateDto getState(@PathVariable("workflowId") String workflowId,
-            @PathVariable("versionId") String versionId, @RequestHeader(USER_ID_HEADER_PARAM) String user) {
-        return new VersionStateDto(workflowVersionManager.getState(workflowId, versionId));
-    }
-
-    @PostMapping("/{versionId}/state")
-    @ApiOperation("Update workflow version state")
-    public VersionStateDto updateState(@RequestBody VersionStateDto state,
-            @PathVariable("workflowId") String workflowId, @PathVariable("versionId") String versionId,
-            @RequestHeader(USER_ID_HEADER_PARAM) String user) {
-        workflowVersionManager.updateState(workflowId, versionId, state.getName());
-        return new VersionStateDto(state.getName());
-    }
-
-    @PutMapping("/{versionId}/artifact")
-    @ApiOperation("Create/update artifact of a version")
-    public void uploadArtifact(@RequestBody MultipartFile fileToUpload, @PathVariable("workflowId") String workflowId,
-            @PathVariable("versionId") String versionId, @RequestHeader(USER_ID_HEADER_PARAM) String user) {
-        workflowVersionManager.uploadArtifact(workflowId, versionId, fileToUpload);
-    }
-
-    @GetMapping("/{versionId}/artifact")
-    @ApiOperation("Download workflow version artifact")
-    public ResponseEntity<Resource> getArtifact(@PathVariable("workflowId") String workflowId,
-            @PathVariable("versionId") String versionId, @RequestHeader(USER_ID_HEADER_PARAM) String user) {
-        ArtifactEntity artifact = workflowVersionManager.getArtifact(workflowId, versionId);
-
-        return ResponseEntity.ok()
-                             .header(HttpHeaders.CONTENT_DISPOSITION, "attachment;filename=" + artifact.getFileName())
-                             .contentType(MediaType.APPLICATION_OCTET_STREAM)
-                             .body(new InputStreamResource(artifact.getArtifactData()));
-    }
-
-    @DeleteMapping("/{versionId}/artifact")
-    @ApiOperation("Delete workflow version artifact")
-    public void deleteArtifact(@PathVariable("workflowId") String workflowId,
-            @PathVariable("versionId") String versionId, @RequestHeader(USER_ID_HEADER_PARAM) String user) {
-        workflowVersionManager.deleteArtifact(workflowId, versionId);
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/exceptionshandlers/CustomizedResponseEntityExceptionHandler.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/exceptionshandlers/CustomizedResponseEntityExceptionHandler.java
deleted file mode 100644
index 68fd41a5..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/exceptionshandlers/CustomizedResponseEntityExceptionHandler.java
+++ /dev/null
@@ -1,48 +0,0 @@
-package org.onap.sdc.workflow.api.exceptionshandlers;
-
-import static org.springframework.http.HttpStatus.FORBIDDEN;
-import static org.springframework.http.HttpStatus.NOT_FOUND;
-import static org.springframework.http.HttpStatus.UNPROCESSABLE_ENTITY;
-
-import org.onap.sdc.workflow.services.exceptions.EntityNotFoundException;
-import org.onap.sdc.workflow.services.exceptions.InvalidArtifactException;
-import org.onap.sdc.workflow.services.exceptions.UniqueValueViolationException;
-import org.onap.sdc.workflow.services.exceptions.VersionCreationException;
-import org.onap.sdc.workflow.services.exceptions.VersionModificationException;
-import org.onap.sdc.workflow.services.exceptions.VersionStateModificationException;
-import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.ControllerAdvice;
-import org.springframework.web.bind.annotation.ExceptionHandler;
-import org.springframework.web.bind.annotation.RestController;
-import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
-
-@ControllerAdvice
-@RestController
-public class CustomizedResponseEntityExceptionHandler extends ResponseEntityExceptionHandler {
-
-    @ExceptionHandler(UniqueValueViolationException.class)
-    public final ResponseEntity<String> handleUniqueValueViolationException(
-            UniqueValueViolationException exception) {
-        return new ResponseEntity<>(exception.getMessage(), UNPROCESSABLE_ENTITY);
-    }
-
-    @ExceptionHandler(EntityNotFoundException.class)
-    public final ResponseEntity<String> handleWorkflowNotFoundException(
-            Exception exception) {
-        return new ResponseEntity<>(exception.getMessage(), NOT_FOUND);
-    }
-
-    @ExceptionHandler({InvalidArtifactException.class, VersionModificationException.class,
-            VersionStateModificationException.class})
-    public final ResponseEntity<String> handleInvalidArtifactException(
-            Exception exception) {
-        return new ResponseEntity<>(exception.getMessage(), UNPROCESSABLE_ENTITY);
-    }
-
-
-    @ExceptionHandler(VersionCreationException.class)
-    public final ResponseEntity<String> handleVersioningErrorException(
-            VersionCreationException exception) {
-        return new ResponseEntity<>(exception.getMessage(), FORBIDDEN);
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/types/CollectionWrapper.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/types/CollectionWrapper.java
deleted file mode 100644
index 653b0dcf..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/types/CollectionWrapper.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package org.onap.sdc.workflow.api.types;
-
-import java.util.Collection;
-import lombok.Data;
-
-@Data
-public class CollectionWrapper<T> {
-
-    private int total;
-    private int limit;
-    private int offset;
-    private Collection<T> results;
-
-    public CollectionWrapper(Collection<T> results) {
-        this.results = results;
-        this.total = results.size();
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/types/VersionRequestDto.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/types/VersionRequestDto.java
deleted file mode 100644
index 92ac3a73..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/types/VersionRequestDto.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package org.onap.sdc.workflow.api.types;
-
-import lombok.Data;
-
-@Data
-public class VersionRequestDto {
-
-    private String description;
-    private String baseVersionId;
-
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/types/VersionStateDto.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/types/VersionStateDto.java
deleted file mode 100644
index 5963a2bf..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/types/VersionStateDto.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package org.onap.sdc.workflow.api.types;
-
-import java.util.List;
-import lombok.Data;
-import org.onap.sdc.workflow.persistence.types.WorkflowVersionState;
-
-@Data
-public class VersionStateDto {
-
-    private WorkflowVersionState name;
-    private List<WorkflowVersionState> nextStates;
-
-    public VersionStateDto() {
-    }
-
-    public VersionStateDto(WorkflowVersionState state) {
-        name = state;
-        nextStates = state.getNextStates();
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/ArtifactRepository.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/ArtifactRepository.java
deleted file mode 100644
index a473f166..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/ArtifactRepository.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package org.onap.sdc.workflow.persistence;
-
-
-import java.util.Optional;
-import org.onap.sdc.workflow.persistence.types.ArtifactEntity;
-
-
-public interface ArtifactRepository {
-
-    void update(String id, String versionId,ArtifactEntity artifactEntity);
-
-    Optional<ArtifactEntity> get(String id, String versionId);
-
-    void createStructure(String id, String versionId);
-
-    void delete(String id, String versionId);
-
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/UniqueValueRepository.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/UniqueValueRepository.java
deleted file mode 100644
index d374a404..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/UniqueValueRepository.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package org.onap.sdc.workflow.persistence;
-
-import org.onap.sdc.workflow.persistence.types.UniqueValueEntity;
-import org.springframework.data.cassandra.repository.CassandraRepository;
-import org.springframework.stereotype.Repository;
-
-@Repository
-public interface UniqueValueRepository extends CassandraRepository<UniqueValueEntity, UniqueValueEntity> {
-
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/impl/ArtifactRepositoryImpl.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/impl/ArtifactRepositoryImpl.java
deleted file mode 100644
index 9a449f0d..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/impl/ArtifactRepositoryImpl.java
+++ /dev/null
@@ -1,104 +0,0 @@
-package org.onap.sdc.workflow.persistence.impl;
-
-import static org.openecomp.core.zusammen.api.ZusammenUtil.buildStructuralElement;
-import static org.openecomp.core.zusammen.api.ZusammenUtil.createSessionContext;
-
-import com.amdocs.zusammen.adaptor.inbound.api.types.item.Element;
-import com.amdocs.zusammen.adaptor.inbound.api.types.item.ZusammenElement;
-import com.amdocs.zusammen.datatypes.SessionContext;
-import com.amdocs.zusammen.datatypes.item.Action;
-import com.amdocs.zusammen.datatypes.item.ElementContext;
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.Arrays;
-import java.util.Map;
-import java.util.Optional;
-import org.apache.commons.io.IOUtils;
-import org.onap.sdc.workflow.persistence.ArtifactRepository;
-import org.onap.sdc.workflow.persistence.types.ArtifactEntity;
-import org.openecomp.core.zusammen.api.ZusammenAdaptor;
-import org.openecomp.core.zusammen.api.ZusammenAdaptorFactory;
-import org.openecomp.sdc.datatypes.model.ElementType;
-import org.springframework.stereotype.Repository;
-
-@Repository
-public class ArtifactRepositoryImpl implements ArtifactRepository {
-
-    private static final String FILE_NAME_PROPERTY = "fileName";
-    private static final String EMPTY_DATA = "{}";
-    private ZusammenAdaptor zusammenAdaptor = ZusammenAdaptorFactory.getInstance().createInterface();
-
-
-    @Override
-    public void update(String id, String versionId, ArtifactEntity artifactEntity) {
-
-        ZusammenElement artifactElement = buildStructuralElement(ElementType.Artifact, Action.UPDATE);
-        artifactElement.setData(artifactEntity.getArtifactData());
-        artifactElement.getInfo().addProperty(FILE_NAME_PROPERTY, artifactEntity.getFileName());
-
-        SessionContext context = createSessionContext();
-        ElementContext elementContext = new ElementContext(id, versionId);
-
-        zusammenAdaptor
-                .saveElement(context, elementContext, artifactElement, "Update WorkflowVersion Artifact Element");
-    }
-
-    @Override
-    public Optional<ArtifactEntity> get(String id, String versionId) {
-        SessionContext context = createSessionContext();
-        ElementContext elementContext = new ElementContext(id, versionId);
-
-        Optional<Element> elementOptional =
-                zusammenAdaptor.getElementByName(context, elementContext, null, ElementType.Artifact.name());
-
-        if (!elementOptional.isPresent() || hasEmptyData(elementOptional.get().getData())) {
-            return Optional.empty();
-        }
-
-        Element artifactElement = elementOptional.get();
-
-        ArtifactEntity artifact = new ArtifactEntity(artifactElement.getInfo().getProperty(FILE_NAME_PROPERTY),
-                artifactElement.getData());
-
-        return Optional.of(artifact);
-    }
-
-    @Override
-    public void createStructure(String id, String versionId) {
-        SessionContext context = createSessionContext();
-        ElementContext elementContext = new ElementContext(id, versionId);
-
-        ZusammenElement artifactElement = buildStructuralElement(ElementType.Artifact, Action.CREATE);
-        artifactElement.setData(new ByteArrayInputStream(EMPTY_DATA.getBytes()));
-
-        zusammenAdaptor
-                .saveElement(context, elementContext, artifactElement, "Create WorkflowVersion Artifact Element");
-
-    }
-
-    @Override
-    public void delete(String id, String versionId) {
-        SessionContext context = createSessionContext();
-        ElementContext elementContext = new ElementContext(id, versionId);
-
-        ZusammenElement artifactElement = buildStructuralElement(ElementType.Artifact, Action.UPDATE);
-        artifactElement.setData(new ByteArrayInputStream(EMPTY_DATA.getBytes()));
-        artifactElement.getInfo().getProperties().remove(FILE_NAME_PROPERTY);
-
-        zusammenAdaptor
-                .saveElement(context, elementContext, artifactElement, "Update WorkflowVersion Artifact Element");
-
-    }
-
-    private boolean hasEmptyData(InputStream elementData) {
-
-        byte[] byteElementData;
-        try {
-            byteElementData = IOUtils.toByteArray(elementData);
-        } catch (IOException ex) {
-            return false;
-        }
-        return Arrays.equals(EMPTY_DATA.getBytes(), byteElementData);
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/ArtifactEntity.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/ArtifactEntity.java
deleted file mode 100644
index 8f24ecc9..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/ArtifactEntity.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package org.onap.sdc.workflow.persistence.types;
-
-import java.io.InputStream;
-import lombok.Data;
-
-@Data
-public class ArtifactEntity {
-
-    private String fileName;
-    private InputStream artifactData;
-
-    public ArtifactEntity(String fileName, InputStream artifactData) {
-        this.fileName = fileName;
-        this.artifactData = artifactData;
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/UniqueValueEntity.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/UniqueValueEntity.java
deleted file mode 100644
index 925ec5cb..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/UniqueValueEntity.java
+++ /dev/null
@@ -1,23 +0,0 @@
-package org.onap.sdc.workflow.persistence.types;
-
-import static org.springframework.data.cassandra.core.cql.PrimaryKeyType.PARTITIONED;
-
-import lombok.Data;
-import org.springframework.data.cassandra.core.mapping.PrimaryKeyColumn;
-import org.springframework.data.cassandra.core.mapping.Table;
-
-@Table("unique_value")
-@Data
-public class UniqueValueEntity {
-
-    @PrimaryKeyColumn(ordinal = 0, type = PARTITIONED)
-    private String type;
-
-    @PrimaryKeyColumn(ordinal = 1, type = PARTITIONED)
-    private String value;
-
-    public UniqueValueEntity(String type, String value) {
-        this.type = type;
-        this.value = value;
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/Workflow.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/Workflow.java
deleted file mode 100644
index 8c66d820..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/Workflow.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package org.onap.sdc.workflow.persistence.types;
-
-
-import lombok.Data;
-
-@Data
-public class Workflow {
-
-    private String id;
-    private String name;
-    private String description;
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/WorkflowProperty.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/WorkflowProperty.java
deleted file mode 100644
index 6c2d804d..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/WorkflowProperty.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package org.onap.sdc.workflow.persistence.types;
-
-public final class WorkflowProperty {
-
-    private WorkflowProperty() {
-    }
-
-    public static final String CATEGORY = "category";
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/WorkflowVersion.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/WorkflowVersion.java
deleted file mode 100644
index db0999b6..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/WorkflowVersion.java
+++ /dev/null
@@ -1,26 +0,0 @@
-package org.onap.sdc.workflow.persistence.types;
-
-import java.util.Date;
-import lombok.Data;
-
-
-@Data
-public class WorkflowVersion {
-
-    private String id;
-    private String name;
-    private String description;
-    private String baseId;
-    private Date creationTime;
-    private Date modificationTime;
-    private WorkflowVersionState state;
-
-
-    public WorkflowVersion(String id) {
-        this.id = id;
-        this.state = WorkflowVersionState.DRAFT;
-    }
-
-    public WorkflowVersion() {
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/WorkflowVersionState.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/WorkflowVersionState.java
deleted file mode 100644
index 9414fa17..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/persistence/types/WorkflowVersionState.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package org.onap.sdc.workflow.persistence.types;
-
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.List;
-
-public enum WorkflowVersionState {
-
-    CERTIFIED, DRAFT(CERTIFIED);
-
-    private final List<WorkflowVersionState> nextStates;
-
-    WorkflowVersionState(WorkflowVersionState... nextStates) {
-        this.nextStates = Collections.unmodifiableList(Arrays.asList(nextStates));
-    }
-
-    public List<WorkflowVersionState> getNextStates() {
-        return nextStates;
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/server/config/SwaggerConfig.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/server/config/SwaggerConfig.java
deleted file mode 100644
index 5105114f..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/server/config/SwaggerConfig.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package org.onap.sdc.workflow.server.config;
-
-import static springfox.documentation.builders.PathSelectors.regex;
-
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import springfox.documentation.builders.RequestHandlerSelectors;
-import springfox.documentation.spi.DocumentationType;
-import springfox.documentation.spring.web.plugins.Docket;
-import springfox.documentation.swagger2.annotations.EnableSwagger2;
-
-@Configuration
-@EnableSwagger2
-public class SwaggerConfig {
-
-    @Bean
-    public Docket api() {
-        return new Docket(DocumentationType.SWAGGER_2)
-                       .select()
-                       .apis(RequestHandlerSelectors.basePackage("org.onap.sdc.workflow.api"))
-                       .paths(regex("/workflows.*"))
-                       .build();
-    }
-}
\ No newline at end of file
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/server/config/ZusammenConfig.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/server/config/ZusammenConfig.java
deleted file mode 100644
index 092c3464..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/server/config/ZusammenConfig.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package org.onap.sdc.workflow.server.config;
-
-import javax.annotation.PostConstruct;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.context.annotation.Configuration;
-
-@Configuration
-public class ZusammenConfig {
-
-    @Value("${zusammen-tenant:workflow}")
-    private String tenant;
-    @Value("${spring.data.cassandra.contact-points:localhost}")
-    private String cassandraAddress;
-    @Value("${spring.data.cassandra.username:}")
-    private String cassandraUser;
-    @Value("${spring.data.cassandra.password:}")
-    private String cassandraPassword;
-    @Value("${zusammen.cassandra.isAuthenticate:false}")
-    private String cassandraAuth;
-
-    @PostConstruct
-    public void init(){
-        System.setProperty("cassandra.nodes", cassandraAddress);
-        System.setProperty("cassandra.user", cassandraUser);
-        System.setProperty("cassandra.password", cassandraPassword);
-        System.setProperty("cassandra.authenticate", Boolean.toString(Boolean.valueOf(cassandraAuth)));
-    }
-
-    public String getTenant() {
-        return tenant;
-    }
-}
\ No newline at end of file
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/server/filters/SessionContextFilter.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/server/filters/SessionContextFilter.java
deleted file mode 100644
index 07d8eee7..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/server/filters/SessionContextFilter.java
+++ /dev/null
@@ -1,64 +0,0 @@
-package org.onap.sdc.workflow.server.filters;
-
-import static org.onap.sdc.workflow.api.RestConstants.USER_ID_HEADER_PARAM;
-
-import java.io.IOException;
-import javax.servlet.Filter;
-import javax.servlet.FilterChain;
-import javax.servlet.FilterConfig;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRequest;
-import javax.servlet.ServletResponse;
-import javax.servlet.http.HttpServletRequest;
-import org.onap.sdc.workflow.server.config.ZusammenConfig;
-import org.openecomp.sdc.common.session.SessionContextProvider;
-import org.openecomp.sdc.common.session.SessionContextProviderFactory;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Component;
-
-@Component
-public class SessionContextFilter implements Filter {
-
-    private ZusammenConfig zusammenConfig;
-
-    @Autowired
-    public SessionContextFilter(ZusammenConfig zusammenConfig) {
-        this.zusammenConfig = zusammenConfig;
-    }
-
-    @Override
-    public void init(FilterConfig filterConfig) {
-        // not implemented
-    }
-
-    @Override
-    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
-            throws IOException, ServletException {
-        SessionContextProvider contextProvider = SessionContextProviderFactory.getInstance().createInterface();
-
-        try {
-            if (servletRequest instanceof HttpServletRequest) {
-                contextProvider.create(getUser(servletRequest), getTenant());
-            }
-
-            filterChain.doFilter(servletRequest, servletResponse);
-        } finally {
-            contextProvider.close();
-        }
-    }
-
-    @Override
-    public void destroy() {
-        // not implemented
-    }
-
-    private String getUser(ServletRequest servletRequest) {
-        return "GLOBAL_USER";
-        // TODO: 7/11/2018 get user from header when collaboration will be supported
-                //((HttpServletRequest) servletRequest).getHeader(USER_ID_HEADER_PARAM);
-    }
-
-    private String getTenant() {
-        return zusammenConfig.getTenant();
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/UniqueValueService.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/UniqueValueService.java
deleted file mode 100644
index a9acb816..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/UniqueValueService.java
+++ /dev/null
@@ -1,107 +0,0 @@
-package org.onap.sdc.workflow.services;
-
-import java.util.Optional;
-import org.apache.commons.lang.ArrayUtils;
-import org.onap.sdc.workflow.persistence.UniqueValueRepository;
-import org.onap.sdc.workflow.persistence.types.UniqueValueEntity;
-import org.onap.sdc.workflow.services.exceptions.UniqueValueViolationException;
-import org.openecomp.core.utilities.CommonMethods; // todo get rid of
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-
-@Service("uniqueValueService")
-public class UniqueValueService {
-
-    private static final char FORMATTED_UNIQUE_VALUE_SEPARATOR = '_';
-
-    private final UniqueValueRepository uniqueValueRepository;
-
-    @Autowired
-    public UniqueValueService(UniqueValueRepository uniqueValueRepository) {
-        this.uniqueValueRepository = uniqueValueRepository;
-    }
-
-    /**
-     * Create unique value.
-     *
-     * @param type              the type
-     * @param uniqueCombination the unique combination
-     */
-    public void createUniqueValue(String type, String[] uniqueCombination) {
-        formatValue(uniqueCombination).ifPresent(formattedValue -> {
-            validateUniqueValue(type, formattedValue, uniqueCombination);
-            uniqueValueRepository.insert(new UniqueValueEntity(type, formattedValue));
-        });
-    }
-
-    /**
-     * Delete unique value.
-     *
-     * @param type              the type
-     * @param uniqueCombination the unique combination
-     */
-    public void deleteUniqueValue(String type, String[] uniqueCombination) {
-        formatValue(uniqueCombination)
-                .ifPresent(formattedValue -> uniqueValueRepository.delete(new UniqueValueEntity(type, formattedValue)));
-
-    }
-
-    /**
-     * Update unique value.
-     *
-     * @param type          the type
-     * @param oldValue      the old value
-     * @param newValue      the new value
-     * @param uniqueContext the unique context
-     */
-    public void updateUniqueValue(String type, String oldValue, String newValue, String ... uniqueContext) {
-        if (newValue == null || !newValue.equalsIgnoreCase(oldValue)) {
-            createUniqueValue(type, CommonMethods.concat(uniqueContext, new String[] {newValue}));
-            deleteUniqueValue(type, CommonMethods.concat(uniqueContext, new String[] {oldValue}));
-        }
-    }
-
-    /**
-     * Validate unique value.
-     *
-     * @param type              the type
-     * @param uniqueCombination the unique combination
-     */
-    public void validateUniqueValue(String type, String[] uniqueCombination) {
-        formatValue(uniqueCombination)
-                .ifPresent(formattedValue -> validateUniqueValue(type, formattedValue, uniqueCombination));
-    }
-
-    /**
-     * Checks if a unique value is taken.
-     *
-     * @return true if the unique value is occupied, false otherwise
-     */
-    public boolean isUniqueValueOccupied(String type, String[] uniqueCombination) {
-        return formatValue(uniqueCombination).map(formattedValue -> isUniqueValueOccupied(type, formattedValue))
-                                             .orElse(false);
-    }
-
-    private void validateUniqueValue(String type, String formattedValue, String[] uniqueCombination) {
-        if (isUniqueValueOccupied(type, formattedValue)) {
-            throw new UniqueValueViolationException(type, getValueWithoutContext(uniqueCombination));
-        }
-    }
-
-    private boolean isUniqueValueOccupied(String type, String formattedValue) {
-        return uniqueValueRepository.findById(new UniqueValueEntity(type, formattedValue)).isPresent();
-    }
-
-    private Optional<String> formatValue(String[] uniqueCombination) {
-        if (ArrayUtils.isEmpty(uniqueCombination) || getValueWithoutContext(uniqueCombination) == null) {
-            return Optional.empty();
-        }
-
-        uniqueCombination[uniqueCombination.length - 1] = getValueWithoutContext(uniqueCombination).toLowerCase();
-        return Optional.of(CommonMethods.arrayToSeparatedString(uniqueCombination, FORMATTED_UNIQUE_VALUE_SEPARATOR));
-    }
-
-    private String getValueWithoutContext(String[] uniqueCombination) {
-        return uniqueCombination[uniqueCombination.length - 1];
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/WorkflowManager.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/WorkflowManager.java
deleted file mode 100644
index 01c0b053..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/WorkflowManager.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package org.onap.sdc.workflow.services;
-
-import java.util.Collection;
-import org.onap.sdc.workflow.persistence.types.Workflow;
-
-public interface WorkflowManager {
-
-    Collection<Workflow> list();
-
-    Workflow get(Workflow workflow);
-
-    Workflow create(Workflow workflow);
-
-    void update(Workflow workflow);
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/WorkflowVersionManager.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/WorkflowVersionManager.java
deleted file mode 100644
index 30234526..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/WorkflowVersionManager.java
+++ /dev/null
@@ -1,30 +0,0 @@
-package org.onap.sdc.workflow.services;
-
-import java.util.Collection;
-import org.onap.sdc.workflow.api.types.VersionRequestDto;
-import org.onap.sdc.workflow.persistence.types.ArtifactEntity;
-import org.onap.sdc.workflow.persistence.types.WorkflowVersion;
-import org.onap.sdc.workflow.persistence.types.WorkflowVersionState;
-import org.springframework.web.multipart.MultipartFile;
-
-
-public interface WorkflowVersionManager {
-
-    Collection<WorkflowVersion> list(String workflowId);
-
-    WorkflowVersion create(String workflowId, VersionRequestDto versionRequest);
-
-    void update(String id, WorkflowVersion version);
-
-    WorkflowVersion get(String workflowId, String versionId);
-
-    WorkflowVersionState getState(String workflowId, String versionId);
-
-    void updateState(String workflowId, String versionId, WorkflowVersionState state);
-
-    ArtifactEntity getArtifact(String workflowId, String versionId);
-
-    void deleteArtifact(String workflowId, String versionId);
-
-    void uploadArtifact(String workflowId, String versionId, MultipartFile artifact);
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/EntityNotFoundException.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/EntityNotFoundException.java
deleted file mode 100644
index 1ed3df5a..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/EntityNotFoundException.java
+++ /dev/null
@@ -1,8 +0,0 @@
-package org.onap.sdc.workflow.services.exceptions;
-
-public class EntityNotFoundException extends RuntimeException  {
-
-    public EntityNotFoundException(String message) {
-        super(message);
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/InvalidArtifactException.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/InvalidArtifactException.java
deleted file mode 100644
index 89c5fd5f..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/InvalidArtifactException.java
+++ /dev/null
@@ -1,8 +0,0 @@
-package org.onap.sdc.workflow.services.exceptions;
-
-public class InvalidArtifactException extends RuntimeException  {
-
-    public InvalidArtifactException(String message) {
-        super("Invalid artifact file can not be processed. Error: " + message);
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/UniqueValueViolationException.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/UniqueValueViolationException.java
deleted file mode 100644
index 82c97f94..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/UniqueValueViolationException.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package org.onap.sdc.workflow.services.exceptions;
-
-
-public class UniqueValueViolationException extends RuntimeException {
-
-    private static final String UNIQUE_VALUE_VIOLATION_MSG = "%s with the value '%s' already exists.";
-
-    public UniqueValueViolationException(String uniqueType, String value) {
-        super(String.format(UNIQUE_VALUE_VIOLATION_MSG, uniqueType, value));
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/VersionCreationException.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/VersionCreationException.java
deleted file mode 100644
index af01c68f..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/VersionCreationException.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package org.onap.sdc.workflow.services.exceptions;
-
-public class VersionCreationException extends RuntimeException {
-
-    private static final String MSG = "Error creating a new version for workflow with id %s";
-    private static final String MSG_WITH_BASE_ID = MSG + " based on version %s";
-
-    public VersionCreationException(String workflowId, String baseVersionId) {
-        super(String.format(MSG_WITH_BASE_ID, workflowId, baseVersionId));
-    }
-
-    public VersionCreationException(String workflowId) {
-        super(String.format(MSG, workflowId));
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/VersionModificationException.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/VersionModificationException.java
deleted file mode 100644
index 64ab6103..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/VersionModificationException.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package org.onap.sdc.workflow.services.exceptions;
-
-public class VersionModificationException extends RuntimeException {
-
-    public VersionModificationException(String workflowId, String versionId) {
-        super(String.format(
-                "Error while trying to modify version %s of workflow %s: Version is CERTIFIED and can not be edited",
-                versionId, workflowId));
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/VersionStateModificationException.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/VersionStateModificationException.java
deleted file mode 100644
index 6c4606db..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/exceptions/VersionStateModificationException.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package org.onap.sdc.workflow.services.exceptions;
-
-import org.onap.sdc.workflow.persistence.types.WorkflowVersionState;
-
-public class VersionStateModificationException extends RuntimeException {
-
-    public VersionStateModificationException(String workflowId, String versionId, WorkflowVersionState sourceState,
-            WorkflowVersionState targetState) {
-        super(String.format("Workflow %s, version %s: state can not be changed from %s to %s", workflowId, versionId,
-                sourceState.name(), targetState.name()));
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/CollaborationConfiguration.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/CollaborationConfiguration.java
deleted file mode 100644
index 2a4cd5aa..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/CollaborationConfiguration.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package org.onap.sdc.workflow.services.impl;
-
-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.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-
-@Configuration
-public class CollaborationConfiguration {
-
-    @Bean
-    public ItemManager itemManager() {
-        return ItemManagerFactory.getInstance().createInterface();
-    }
-
-    @Bean
-    public VersioningManager versioningManager() {
-        return VersioningManagerFactory.getInstance().createInterface();
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/WorkflowManagerImpl.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/WorkflowManagerImpl.java
deleted file mode 100644
index 8ac5025a..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/WorkflowManagerImpl.java
+++ /dev/null
@@ -1,79 +0,0 @@
-package org.onap.sdc.workflow.services.impl;
-
-import java.util.Collection;
-import java.util.function.Predicate;
-import java.util.stream.Collectors;
-import org.onap.sdc.workflow.persistence.types.Workflow;
-import org.onap.sdc.workflow.services.UniqueValueService;
-import org.onap.sdc.workflow.services.WorkflowManager;
-import org.onap.sdc.workflow.services.exceptions.EntityNotFoundException;
-import org.onap.sdc.workflow.services.impl.mappers.WorkflowMapper;
-import org.openecomp.sdc.versioning.ItemManager;
-import org.openecomp.sdc.versioning.types.Item;
-import org.openecomp.sdc.versioning.types.ItemStatus;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.annotation.Qualifier;
-import org.springframework.stereotype.Service;
-
-@Service("workflowManager")
-public class WorkflowManagerImpl implements WorkflowManager {
-
-    public static final String WORKFLOW_TYPE = "WORKFLOW";
-    private static final String WORKFLOW_NOT_FOUND_ERROR_MSG = "Workflow with id '%s' does not exist";
-    private static final String WORKFLOW_NAME_UNIQUE_TYPE = "WORKFLOW_NAME";
-    static final Predicate<Item> ITEM_PREDICATE = item -> WORKFLOW_TYPE.equals(item.getType());
-
-    private final ItemManager itemManager;
-    private final UniqueValueService uniqueValueService;
-    private final WorkflowMapper workflowMapper;
-
-    @Autowired
-    public WorkflowManagerImpl(ItemManager itemManager,
-            @Qualifier("uniqueValueService") UniqueValueService uniqueValueService, WorkflowMapper workflowMapper) {
-        this.itemManager = itemManager;
-        this.uniqueValueService = uniqueValueService;
-        this.workflowMapper = workflowMapper;
-    }
-
-    @Override
-    public Collection<Workflow> list() {
-        return itemManager.list(ITEM_PREDICATE).stream().map(workflowMapper::itemToWorkflow)
-                          .collect(Collectors.toList());
-    }
-
-    @Override
-    public Workflow get(Workflow workflow) {
-        Item retrievedItem = itemManager.get(workflow.getId());
-        if (retrievedItem == null) {
-            throw new EntityNotFoundException(String.format(WORKFLOW_NOT_FOUND_ERROR_MSG, workflow.getId()));
-        }
-        return this.workflowMapper.itemToWorkflow(retrievedItem);
-    }
-
-    @Override
-    public Workflow create(Workflow workflow) {
-        Item item = workflowMapper.workflowToItem(workflow);
-        item.setStatus(ItemStatus.ACTIVE);
-
-        uniqueValueService.validateUniqueValue(WORKFLOW_NAME_UNIQUE_TYPE, new String[] {workflow.getName()});
-        workflow.setId(itemManager.create(item).getId());
-        uniqueValueService.createUniqueValue(WORKFLOW_NAME_UNIQUE_TYPE, new String[] {workflow.getName()});
-        return workflow;
-    }
-
-    @Override
-    public void update(Workflow workflow) {
-        Item retrievedItem = itemManager.get(workflow.getId());
-        if (retrievedItem == null) {
-            throw new EntityNotFoundException(String.format(WORKFLOW_NOT_FOUND_ERROR_MSG, workflow.getId()));
-        }
-
-        uniqueValueService.updateUniqueValue(WORKFLOW_NAME_UNIQUE_TYPE, retrievedItem.getName(), workflow.getName());
-
-        Item item = workflowMapper.workflowToItem(workflow);
-        item.setId(workflow.getId());
-        item.setStatus(retrievedItem.getStatus());
-        item.setVersionStatusCounters(retrievedItem.getVersionStatusCounters());
-        itemManager.update(item);
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/WorkflowVersionManagerImpl.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/WorkflowVersionManagerImpl.java
deleted file mode 100644
index d559f025..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/WorkflowVersionManagerImpl.java
+++ /dev/null
@@ -1,186 +0,0 @@
-package org.onap.sdc.workflow.services.impl;
-
-import static org.openecomp.sdc.versioning.dao.types.VersionStatus.Certified;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.Collection;
-import java.util.List;
-import java.util.Optional;
-import java.util.stream.Collectors;
-import org.onap.sdc.workflow.api.types.VersionRequestDto;
-import org.onap.sdc.workflow.persistence.ArtifactRepository;
-import org.onap.sdc.workflow.persistence.types.ArtifactEntity;
-import org.onap.sdc.workflow.persistence.types.WorkflowVersion;
-import org.onap.sdc.workflow.persistence.types.WorkflowVersionState;
-import org.onap.sdc.workflow.services.WorkflowVersionManager;
-import org.onap.sdc.workflow.services.exceptions.EntityNotFoundException;
-import org.onap.sdc.workflow.services.exceptions.InvalidArtifactException;
-import org.onap.sdc.workflow.services.exceptions.VersionCreationException;
-import org.onap.sdc.workflow.services.exceptions.VersionModificationException;
-import org.onap.sdc.workflow.services.exceptions.VersionStateModificationException;
-import org.onap.sdc.workflow.services.impl.mappers.VersionMapper;
-import org.onap.sdc.workflow.services.impl.mappers.VersionStateMapper;
-import org.openecomp.sdc.versioning.VersioningManager;
-import org.openecomp.sdc.versioning.dao.types.Version;
-import org.openecomp.sdc.versioning.types.VersionCreationMethod;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-import org.springframework.util.StringUtils;
-import org.springframework.web.multipart.MultipartFile;
-
-@Service("workflowVersionManager")
-public class WorkflowVersionManagerImpl implements WorkflowVersionManager {
-
-    private static final String VERSION_NOT_EXIST_MSG = "version with id '%s' does not exist for workflow with id '%s'";
-    private final VersioningManager versioningManager;
-    private final ArtifactRepository artifactRepository;
-    private final VersionMapper versionMapper;
-    private final VersionStateMapper versionStateMapper;
-
-
-    @Autowired
-    public WorkflowVersionManagerImpl(VersioningManager versioningManager, ArtifactRepository artifactRepository,
-            VersionMapper versionMapper, VersionStateMapper versionStateMapper) {
-        this.versioningManager = versioningManager;
-        this.artifactRepository = artifactRepository;
-        this.versionMapper = versionMapper;
-        this.versionStateMapper = versionStateMapper;
-    }
-
-    @Override
-    public Collection<WorkflowVersion> list(String workflowId) {
-        return versioningManager.list(workflowId).stream().map(versionMapper::versionToWorkflowVersion)
-                                .collect(Collectors.toList());
-    }
-
-    @Override
-    public WorkflowVersion get(String workflowId, String versionId) {
-        return versionMapper.versionToWorkflowVersion(getVersion(workflowId, versionId));
-    }
-
-    @Override
-    public WorkflowVersion create(String workflowId, VersionRequestDto versionRequest) {
-        List<Version> versions = versioningManager.list(workflowId);
-
-        if (versionRequest.getBaseVersionId() != null) {
-            validateVersionExistAndCertified(workflowId, versions, versionRequest.getBaseVersionId());
-        } else if (!versions.isEmpty()) {
-            throw new VersionCreationException(workflowId);
-        }
-
-        Version version = new Version();
-        version.setDescription(versionRequest.getDescription());
-        version.setBaseId(versionRequest.getBaseVersionId());
-        Version createdVersion = versioningManager.create(workflowId, version, VersionCreationMethod.major);
-
-        if (versions.isEmpty()) { // only for first version
-            artifactRepository.createStructure(workflowId, createdVersion.getId());
-            versioningManager.publish(workflowId, createdVersion, "Add workflow structure");
-        }
-
-        return versionMapper.versionToWorkflowVersion(createdVersion);
-    }
-
-    @Override
-    public void update(String workflowId, WorkflowVersion workflowVersion) {
-        Version retrievedVersion = getVersion(workflowId, workflowVersion.getId());
-        if (WorkflowVersionState.CERTIFIED
-                    .equals(versionStateMapper.versionStatusToWorkflowVersionState(retrievedVersion.getStatus()))) {
-            throw new VersionModificationException(workflowId, workflowVersion.getId());
-        }
-
-        Version version = versionMapper.workflowVersionToVersion(workflowVersion);
-        version.setName(retrievedVersion.getName());
-        version.setStatus(retrievedVersion.getStatus());
-
-        versioningManager.updateVersion(workflowId, version);
-        versioningManager.publish(workflowId, version, "Update version");
-    }
-
-    @Override
-    public WorkflowVersionState getState(String workflowId, String versionId) {
-        return versionStateMapper.versionStatusToWorkflowVersionState(getVersion(workflowId, versionId).getStatus());
-    }
-
-    @Override
-    public void updateState(String workflowId, String versionId, WorkflowVersionState state) {
-        Version retrievedVersion = getVersion(workflowId, versionId);
-        WorkflowVersionState retrievedState =
-                versionStateMapper.versionStatusToWorkflowVersionState(retrievedVersion.getStatus());
-        if (WorkflowVersionState.CERTIFIED.equals(retrievedState) || retrievedState.equals(state)) {
-            throw new VersionStateModificationException(workflowId, versionId, retrievedState, state);
-        }
-
-        retrievedVersion.setStatus(versionStateMapper.workflowVersionStateToVersionStatus(state));
-        versioningManager.updateVersion(workflowId, retrievedVersion);
-        versioningManager.publish(workflowId, retrievedVersion,
-                String.format("Update version state from %s to %s", retrievedState.name(), state.name()));
-    }
-
-    @Override
-    public void uploadArtifact(String workflowId, String versionId, MultipartFile artifact) {
-        Version retrievedVersion = getVersion(workflowId, versionId);
-        if (WorkflowVersionState.CERTIFIED
-                    .equals(versionStateMapper.versionStatusToWorkflowVersionState(retrievedVersion.getStatus()))) {
-            throw new VersionModificationException(workflowId, versionId);
-        }
-
-        try (InputStream artifactData = artifact.getInputStream()) {
-            ArtifactEntity artifactEntity =
-                    new ArtifactEntity(StringUtils.cleanPath(artifact.getOriginalFilename()), artifactData);
-            artifactRepository.update(workflowId, versionId, artifactEntity);
-            versioningManager.publish(workflowId, new Version(versionId), "Update Artifact");
-
-        } catch (IOException e) {
-            throw new InvalidArtifactException(e.getMessage());
-        }
-    }
-
-    @Override
-    public ArtifactEntity getArtifact(String workflowId, String versionId) {
-        getVersion(workflowId, versionId);
-        Optional<ArtifactEntity> artifactOptional = artifactRepository.get(workflowId, versionId);
-        if (!artifactOptional.isPresent()) {
-            throw new EntityNotFoundException(
-                    String.format("Artifact for workflow id %S version id %S was not found", workflowId, versionId));
-        }
-        return artifactOptional.get();
-    }
-
-    @Override
-    public void deleteArtifact(String workflowId, String versionId) {
-        WorkflowVersion retrievedVersion = get(workflowId, versionId);
-        if (WorkflowVersionState.CERTIFIED.equals(retrievedVersion.getState())) {
-            throw new VersionModificationException(workflowId, versionId);
-        }
-
-        artifactRepository.delete(workflowId, versionId);
-        versioningManager.publish(workflowId, new Version(versionId), "Delete Artifact");
-    }
-
-    private void validateVersionExistAndCertified(String workflowId, List<Version> versions, String versionId) {
-        Version baseVersion = findVersion(versions, versionId).orElseThrow(
-                () -> new EntityNotFoundException(String.format(VERSION_NOT_EXIST_MSG, versionId, workflowId)));
-
-        if (!Certified.equals(baseVersion.getStatus())) {
-            throw new VersionCreationException(workflowId, versionId);
-        }
-    }
-
-    private Version getVersion(String workflowId, String versionId) {
-        try {
-            Version version = versioningManager.get(workflowId, new Version(versionId));
-            if (version == null) {
-                throw new EntityNotFoundException(String.format(VERSION_NOT_EXIST_MSG, versionId, workflowId));
-            }
-            return version;
-        } catch (Exception e) {
-            throw new EntityNotFoundException(String.format(VERSION_NOT_EXIST_MSG, versionId, workflowId));
-        }
-    }
-
-    private static Optional<Version> findVersion(List<Version> versions, String versionId) {
-        return versions.stream().filter(version -> versionId.equals(version.getId())).findFirst();
-    }
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/mappers/VersionMapper.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/mappers/VersionMapper.java
deleted file mode 100644
index bcf89661..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/mappers/VersionMapper.java
+++ /dev/null
@@ -1,19 +0,0 @@
-package org.onap.sdc.workflow.services.impl.mappers;
-
-import org.mapstruct.InheritInverseConfiguration;
-import org.mapstruct.Mapper;
-import org.mapstruct.Mapping;
-import org.onap.sdc.workflow.persistence.types.WorkflowVersion;
-import org.openecomp.sdc.versioning.dao.types.Version;
-
-@Mapper(componentModel = "spring", uses = VersionStateMapper.class)
-public interface VersionMapper {
-
-
-    @Mapping(source = "status", target = "state")
-    WorkflowVersion versionToWorkflowVersion(Version version);
-
-    @InheritInverseConfiguration
-    Version workflowVersionToVersion(WorkflowVersion workflowVersion);
-
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/mappers/VersionStateMapper.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/mappers/VersionStateMapper.java
deleted file mode 100644
index 0c2f5391..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/mappers/VersionStateMapper.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package org.onap.sdc.workflow.services.impl.mappers;
-
-import org.mapstruct.InheritInverseConfiguration;
-import org.mapstruct.Mapper;
-import org.mapstruct.ValueMapping;
-import org.mapstruct.ValueMappings;
-import org.onap.sdc.workflow.persistence.types.WorkflowVersionState;
-import org.openecomp.sdc.versioning.dao.types.VersionStatus;
-
-@Mapper(componentModel = "spring")
-public interface VersionStateMapper {
-
-    @ValueMappings({@ValueMapping(source = "Certified", target = "CERTIFIED"),
-            @ValueMapping(source = "Draft", target = "DRAFT"),
-            @ValueMapping(source = "<ANY_REMAINING>", target = "DRAFT")})
-    WorkflowVersionState versionStatusToWorkflowVersionState(VersionStatus status);
-
-    @InheritInverseConfiguration
-    VersionStatus workflowVersionStateToVersionStatus(WorkflowVersionState status);
-
-
-}
diff --git a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/mappers/WorkflowMapper.java b/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/mappers/WorkflowMapper.java
deleted file mode 100644
index 34327ce7..00000000
--- a/workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/impl/mappers/WorkflowMapper.java
+++ /dev/null
@@ -1,19 +0,0 @@
-package org.onap.sdc.workflow.services.impl.mappers;
-
-import org.mapstruct.InheritInverseConfiguration;
-import org.mapstruct.Mapper;
-import org.mapstruct.Mapping;
-import org.onap.sdc.workflow.persistence.types.Workflow;
-import org.onap.sdc.workflow.services.impl.WorkflowManagerImpl;
-import org.openecomp.sdc.versioning.types.Item;
-
-@Mapper(componentModel = "spring", imports = WorkflowManagerImpl.class)
-public interface WorkflowMapper {
-
-    Workflow itemToWorkflow(Item item);
-
-    @InheritInverseConfiguration
-    @Mapping(expression = "java(WorkflowManagerImpl.WORKFLOW_TYPE)", target = "type")
-    Item workflowToItem(Workflow workflow);
-
-}