unit tests - NetworkPackageHealer

Additional junit tests using mockito

Change-Id: I1a48d0dd15a3319dc096816ea36346f4b13322fc
Issue-ID: SDC-2326
Signed-off-by: Tomasz Golabek <tomasz.golabek@nokia.com>

1 files changed, 281 insertions, 303 deletions

diff --git a/openecomp-be/lib/openecomp-healing-lib/openecomp-sdc-healing-impl/src/main/java/org/openecomp/sdc/healing/healers/NetworkPackageHealer.java b/openecomp-be/lib/openecomp-healing-lib/openecomp-sdc-healing-impl/src/main/java/org/openecomp/sdc/healing/healers/NetworkPackageHealer.java
index e1807bafad..3b716da1ca 100644
--- a/openecomp-be/lib/openecomp-healing-lib/openecomp-sdc-healing-impl/src/main/java/org/openecomp/sdc/healing/healers/NetworkPackageHealer.java
+++ b/openecomp-be/lib/openecomp-healing-lib/openecomp-sdc-healing-impl/src/main/java/org/openecomp/sdc/healing/healers/NetworkPackageHealer.java
@@ -12,6 +12,9 @@
  * 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.
+ * ================================================================================
+ * Modifications copyright (c) 2019 Nokia
+ * ================================================================================
  */
 
 package org.openecomp.sdc.healing.healers;
@@ -59,318 +62,293 @@ import static org.openecomp.core.zusammen.api.ZusammenUtil.*;
 
 public class NetworkPackageHealer implements Healer {
 
-  private static final byte[] EMPTY_DATA_BYTES = "{}".getBytes();
-  private static final String MISSING_ORCHESTRATION_TEMPLATE_CANDIDATE_ERROR =
-      "Vsp with invalid structure: does not contain element OrchestrationTemplateCandidate";
-  private static final String MISSING_ORCHESTRATION_TEMPLATE_CANDIDATE_CONTENT_ERROR =
-      "Vsp with invalid structure: does not contain element OrchestrationTemplateCandidateContent"
-          + " under OrchestrationTemplateCandidate";
-
-  private static final String MISSING_VSP_MODEL_ERROR =
-      "Vsp with invalid structure: does not contain element VspModel";
-  private static final String MISSING_ORCHESTRATION_TEMPLATE_ERROR =
-      "Vsp with invalid structure: does not contain element OrchestrationTemplate"
-          + " under VspModel element";
-  private static final String MISSING_ORCHESTRATION_TEMPLATE_VALIDATE_DATA_ERROR =
-      "Vsp with invalid structure: does not contain element OrchestrationTemplateValidationData"
-          + " under OrchestrationTemplate element";
-
-  private final VendorSoftwareProductInfoDao vspInfoDao;
-  private final ZusammenAdaptor zusammenAdaptor;
-  private final CandidateService candidateService;
-
-  public NetworkPackageHealer() {
-    this(VendorSoftwareProductInfoDaoFactory.getInstance().createInterface(),
-        ZusammenAdaptorFactory.getInstance().createInterface(), CandidateServiceFactory
-            .getInstance().createInterface());
-  }
-
-  public NetworkPackageHealer(VendorSoftwareProductInfoDao vspInfoDao,
-                              ZusammenAdaptor zusammenAdaptor,
-                              CandidateService candidateService) {
-    this.vspInfoDao = vspInfoDao;
-    this.zusammenAdaptor = zusammenAdaptor;
-    this.candidateService = candidateService;
-  }
-
-  @Override
-  public boolean isHealingNeeded(String itemId, Version version) {
-    return OnboardingMethod.NetworkPackage.name()
-        .equals(vspInfoDao.get(new VspDetails(itemId, version)).getOnboardingMethod()) &&
-        isVspMissingAddedElements(itemId, version);
-  }
-
-  @Override
-  public void heal(String itemId, Version version) throws Exception {
-    SessionContext context = createSessionContext();
-    ElementContext elementContext = new ElementContext(itemId, version.getId());
-
-    Element candidateElement =
-        getElement(context, elementContext, null, ElementType.OrchestrationTemplateCandidate,
-            MISSING_ORCHESTRATION_TEMPLATE_CANDIDATE_ERROR);
-
-    Collection<Element> candidateSubs =
-        zusammenAdaptor.listElementData(context, elementContext, candidateElement.getElementId());
-
-    Id candidateValidationElementId =
-        creatIfAbsentCandidateValidationElementId(candidateSubs, context,
-        elementContext, candidateElement);
-
-    Element orchestrationTemplateElement = getOrchestrationTemplateElement(context, elementContext);
-
-    Collection<Element> orchestrationTemplateSubs = zusammenAdaptor
-        .listElementData(context, elementContext, orchestrationTemplateElement.getElementId());
-
-    Id structureElementId = createIfAbsentStructureElementId(orchestrationTemplateSubs, context,
-        elementContext, orchestrationTemplateElement);
-
-    Element orchestrationTemplateValidationElement = getOrchestrationTemplateValidationElement
-        (orchestrationTemplateSubs);
-
-    OrchestrationTemplateEntity orchestrationTemplateEntity =
-        getOrchestrationTemplateEntity(orchestrationTemplateElement,
-            orchestrationTemplateValidationElement);
-
-    if (StringUtils.isEmpty(orchestrationTemplateEntity.getFileSuffix())) {
-      return;
+    private static final byte[] EMPTY_DATA_BYTES = "{}".getBytes();
+    private static final String MISSING_ORCHESTRATION_TEMPLATE_CANDIDATE_ERROR =
+            "Vsp with invalid structure: does not contain element OrchestrationTemplateCandidate";
+    private static final String MISSING_ORCHESTRATION_TEMPLATE_CANDIDATE_CONTENT_ERROR =
+            "Vsp with invalid structure: does not contain element OrchestrationTemplateCandidateContent"
+                    + " under OrchestrationTemplateCandidate";
+
+    private static final String MISSING_VSP_MODEL_ERROR =
+            "Vsp with invalid structure: does not contain element VspModel";
+    private static final String MISSING_ORCHESTRATION_TEMPLATE_ERROR =
+            "Vsp with invalid structure: does not contain element OrchestrationTemplate" + " under VspModel element";
+    private static final String MISSING_ORCHESTRATION_TEMPLATE_VALIDATE_DATA_ERROR =
+            "Vsp with invalid structure: does not contain element OrchestrationTemplateValidationData"
+                    + " under OrchestrationTemplate element";
+
+    private final VendorSoftwareProductInfoDao vspInfoDao;
+    private final ZusammenAdaptor zusammenAdaptor;
+    private final CandidateEntityBuilder candidateEntityBuilder;
+
+    public NetworkPackageHealer() {
+        this(VendorSoftwareProductInfoDaoFactory.getInstance().createInterface(),
+                ZusammenAdaptorFactory.getInstance().createInterface(),
+                CandidateServiceFactory.getInstance().createInterface());
     }
 
-    Element candidateContentElement = getCandidateContentElement(candidateSubs);
-
-    VspDetails vspDetails = vspInfoDao.get(new VspDetails(itemId, version));
-    if (isEqual(orchestrationTemplateEntity,
-        getCandidateData(candidateElement, candidateContentElement))) {
-
-      if (isProcessedEntityValid(orchestrationTemplateEntity)) {
-        emptyStructureElementAndSub(context, elementContext, candidateElement.getElementId(),
-            ElementType.OrchestrationTemplateCandidate, candidateContentElement.getElementId(),
-            ElementType.OrchestrationTemplateCandidateContent);
-
-        populateOrchestrationTemplateStructure(orchestrationTemplateElement.getData(),
-            structureElementId, vspDetails, context, elementContext);
-      } else {
-        emptyStructureElementAndSub(context, elementContext,
-            orchestrationTemplateElement.getElementId(), ElementType.OrchestrationTemplate,
-            orchestrationTemplateValidationElement.getElementId(),
-            ElementType.OrchestrationTemplateValidationData);
-
-        populateCandidateValidationData(context, elementContext, candidateValidationElementId,
-            orchestrationTemplateEntity.getValidationData());
-      }
-    } else {
-      populateOrchestrationTemplateStructure(orchestrationTemplateElement.getData(),
-          structureElementId, vspDetails, context, elementContext);
+    private NetworkPackageHealer(VendorSoftwareProductInfoDao vspInfoDao, ZusammenAdaptor zusammenAdaptor,
+            CandidateService candidateService) {
+        this(vspInfoDao, zusammenAdaptor, new CandidateEntityBuilder(candidateService));
     }
-  }
-
-  private boolean isVspMissingAddedElements(String vspId, Version version) {
-    SessionContext context = createSessionContext();
-    ElementContext elementContext = new ElementContext(vspId, version.getId());
-
-    return zusammenAdaptor.listElementsByName(context, elementContext, null,
-        ElementType.OrchestrationTemplateCandidate.name()).stream()
-        .noneMatch(candidateSub -> ElementType.OrchestrationTemplateCandidateValidationData.name()
-            .equals(candidateSub.getInfo().getName()));
-  }
-
-  private boolean isEqual(OrchestrationTemplateEntity orchestrationTemplateEntity,
-                          OrchestrationTemplateCandidateData orchestrationTemplateCandidateData) {
-    return orchestrationTemplateEntity.getFileName()
-        .equals(orchestrationTemplateCandidateData.getFileName()) &&
-        orchestrationTemplateEntity.getFileSuffix()
-            .equals(orchestrationTemplateCandidateData.getFileSuffix());
-  }
-
-  private boolean isProcessedEntityValid(OrchestrationTemplateEntity orchestrationTemplateEntity) {
-    return !orchestrationTemplateEntity.getValidationData().contains(ErrorLevel.ERROR.name());
-  }
-
-  private void populateCandidateValidationData(SessionContext context,
-                                               ElementContext elementContext,
-                                               Id candidateValidationElementId,
-                                               String validationData) {
-    ZusammenElement candidateValidationElement =
-        buildStructuralElement(ElementType.OrchestrationTemplateCandidateValidationData,
-            Action.UPDATE);
-    candidateValidationElement.setElementId(candidateValidationElementId);
-    candidateValidationElement.setData(new ByteArrayInputStream(validationData.getBytes()));
-
-    zusammenAdaptor.saveElement(context, elementContext, candidateValidationElement,
-        "Healed Orchestration Template Candidate Validation data");
-  }
-
-  private void populateOrchestrationTemplateStructure(InputStream processedFile,
-                                                      Id structureElementId, VspDetails vspDetails,
-                                                      SessionContext context,
-                                                      ElementContext elementContext)
-      throws Exception {
-    byte[] byteData = FileUtils.toByteArray(processedFile);
-    FileContentHandler contentMap =
-        CommonUtil.validateAndUploadFileContent(OnboardingTypesEnum.ZIP, byteData);
-    OrchestrationTemplateCandidateData orchestrationTemplateEntityData =
-        new CandidateEntityBuilder(candidateService)
-            .buildCandidateEntityFromZip(vspDetails, byteData, contentMap, null);
-    String fileDataStructure = orchestrationTemplateEntityData.getFilesDataStructure();
-
-    ZusammenElement orchestrationTemplateStructure =
-        buildStructuralElement(ElementType.OrchestrationTemplateStructure, Action.UPDATE);
-    orchestrationTemplateStructure.setElementId(structureElementId);
-    orchestrationTemplateStructure.setData(new ByteArrayInputStream(fileDataStructure.getBytes()));
-
-    zusammenAdaptor.saveElement(context, elementContext, orchestrationTemplateStructure,
-        "Healed Orchestration Template Structure");
-  }
-
-  private Element getOrchestrationTemplateElement(SessionContext context,
-                                                  ElementContext elementContext) {
-    ElementInfo vspModelElement = zusammenAdaptor
-        .getElementInfoByName(context, elementContext, null, ElementType.VspModel.name())
-        .orElseThrow(() -> new CoreException(new ErrorCode.ErrorCodeBuilder()
-            .withMessage(MISSING_VSP_MODEL_ERROR).build()));
-
-    return getElement(context, elementContext, vspModelElement.getId(),
-        ElementType.OrchestrationTemplate, MISSING_ORCHESTRATION_TEMPLATE_ERROR);
-  }
-
-  private Element getOrchestrationTemplateValidationElement(
-      Collection<Element> orchestrationTemplateSubs) {
-    return orchestrationTemplateSubs.stream()
-        .filter(orchestrationTemplateSub -> ElementType.OrchestrationTemplateValidationData.name()
-            .equals(orchestrationTemplateSub.getInfo().getName()))
-        .findFirst()
-        .orElseThrow(() -> new CoreException(new ErrorCode.ErrorCodeBuilder()
-            .withMessage(MISSING_ORCHESTRATION_TEMPLATE_VALIDATE_DATA_ERROR).build()));
-
-  }
-
-  private Element getCandidateContentElement(Collection<Element> candidateSubs) {
-    return candidateSubs.stream()
-        .filter(candidateSub -> ElementType.OrchestrationTemplateCandidateContent.name()
-            .equals(candidateSub.getInfo().getName()))
-        .findFirst()
-        .orElseThrow(() -> new CoreException(new ErrorCode.ErrorCodeBuilder()
-            .withMessage(MISSING_ORCHESTRATION_TEMPLATE_CANDIDATE_CONTENT_ERROR).build()));
-  }
-
-  private Id createIfAbsentStructureElementId(Collection<Element> orchestrationTemplateSubs,
-                                              SessionContext context, ElementContext elementContext,
-                                              Element orchestrationTemplateElement) {
-    return orchestrationTemplateSubs.stream()
-        .filter(orchestrationTemplateSub -> ElementType.OrchestrationTemplateStructure.name()
-            .equals(orchestrationTemplateSub.getInfo().getName()))
-        .findFirst().map(Element::getElementId)
-        .orElse(addStructureSubElement(context, elementContext,
-            ElementType.OrchestrationTemplateStructure,
-            orchestrationTemplateElement.getElementId()));
-  }
-
-  private Id creatIfAbsentCandidateValidationElementId(Collection<Element> candidateSubs,
-                                                       SessionContext context, ElementContext
-                                                 elementContext, Element candidateElement) {
-    return candidateSubs.stream()
-        .filter(candidateSub -> ElementType.OrchestrationTemplateCandidateValidationData.name()
-            .equals(candidateSub.getInfo().getName()))
-        .findFirst().map(Element::getElementId)
-        .orElse(addStructureSubElement(context, elementContext,
-            ElementType.OrchestrationTemplateCandidateValidationData,
-            candidateElement.getElementId()));
-  }
-
-  private Element getElement(SessionContext context, ElementContext elementContext,
-                             Id parentElementId, ElementType elementType, String errorMessage) {
-    return zusammenAdaptor
-        .getElementByName(context, elementContext, parentElementId, elementType.name())
-        .orElseThrow(() -> new CoreException(
-            new ErrorCode.ErrorCodeBuilder().withMessage(errorMessage).build()));
-  }
-
-  private OrchestrationTemplateEntity getOrchestrationTemplateEntity(
-      Element orchestrationTemplateElement, Element validationDataElement) {
-    OrchestrationTemplateEntity orchestrationTemplateEntity = new OrchestrationTemplateEntity();
-
-    if (isNotEmpty(orchestrationTemplateElement.getData())) {
-      orchestrationTemplateEntity.setContentData(
-          ByteBuffer.wrap(FileUtils.toByteArray(orchestrationTemplateElement.getData())));
+
+    NetworkPackageHealer(VendorSoftwareProductInfoDao vspInfoDao, ZusammenAdaptor zusammenAdaptor,
+            CandidateEntityBuilder candidateEntityBuilder) {
+        this.vspInfoDao = vspInfoDao;
+        this.zusammenAdaptor = zusammenAdaptor;
+        this.candidateEntityBuilder = candidateEntityBuilder;
     }
-    orchestrationTemplateEntity.setFileSuffix(
-        validationDataElement.getInfo().getProperty(InfoPropertyName.FILE_SUFFIX.getVal()));
-    orchestrationTemplateEntity.setFileName(
-        validationDataElement.getInfo().getProperty(InfoPropertyName.FILE_NAME.getVal()));
-    if (isNotEmpty(validationDataElement.getData())) {
-      orchestrationTemplateEntity
-          .setValidationData(new String(FileUtils.toByteArray(validationDataElement.getData())));
+
+    @Override
+    public boolean isHealingNeeded(String itemId, Version version) {
+        return OnboardingMethod.NetworkPackage.name()
+                       .equals(vspInfoDao.get(new VspDetails(itemId, version)).getOnboardingMethod())
+                       && isVspMissingAddedElements(itemId, version);
     }
-    return orchestrationTemplateEntity;
-  }
-
-  private OrchestrationTemplateCandidateData getCandidateData(Element candidateElement,
-                                                              Element candidateContentElement) {
-    OrchestrationTemplateCandidateData candidateData = new OrchestrationTemplateCandidateData();
-    candidateData
-        .setFilesDataStructure(new String(FileUtils.toByteArray(candidateElement.getData())));
-    candidateData
-        .setContentData(ByteBuffer.wrap(FileUtils.toByteArray(candidateContentElement.getData())));
-    candidateData.setFileSuffix(
-        candidateContentElement.getInfo().getProperty(InfoPropertyName.FILE_SUFFIX.getVal()));
-    candidateData.setFileName(
-        candidateContentElement.getInfo().getProperty(InfoPropertyName.FILE_NAME.getVal()));
-    return candidateData;
-  }
-
-  private Id addStructureSubElement(SessionContext context, ElementContext elementContext,
-                                    ElementType elementType, Id parentElementId) {
-    ZusammenElement newElement = buildStructuralElement(elementType, Action.CREATE);
-
-    ZusammenElement parentElement = buildElement(parentElementId, Action.IGNORE);
-    parentElement.addSubElement(newElement);
-
-    return zusammenAdaptor.saveElement(context, elementContext, parentElement,
-        String.format("Add element %s under element id %s", elementType.name(), parentElementId))
-        .getSubElements().iterator().next().getElementId();
-  }
-
-  private void emptyStructureElementAndSub(SessionContext context, ElementContext elementContext,
-                                           Id elementId, ElementType elementType, Id subElementId,
-                                           ElementType subElementType) {
-    ZusammenElement subElement = buildStructuralElement(subElementType, Action.UPDATE);
-    subElement.setElementId(subElementId);
-    subElement.setData(new ByteArrayInputStream(EMPTY_DATA_BYTES));
-
-    ZusammenElement element = buildStructuralElement(elementType, Action.UPDATE);
-    element.setElementId(elementId);
-    element.setData(new ByteArrayInputStream(EMPTY_DATA_BYTES));
-    element.addSubElement(subElement);
-
-    zusammenAdaptor.saveElement(context, elementContext, element,
-        String.format("Empty element %s and its sub element %s", elementType.name(),
-            subElementType.name()));
-  }
-
-  public enum InfoPropertyName {
-    FILE_SUFFIX("fileSuffix"),
-    FILE_NAME("fileName");
-
-    private String val;
-
-    InfoPropertyName(String val) {
-      this.val = val;
+
+    @Override
+    public void heal(String itemId, Version version) throws Exception {
+        SessionContext context = createSessionContext();
+        ElementContext elementContext = new ElementContext(itemId, version.getId());
+
+        Element candidateElement = getElement(context, elementContext, null, ElementType.OrchestrationTemplateCandidate,
+                MISSING_ORCHESTRATION_TEMPLATE_CANDIDATE_ERROR);
+
+        Collection<Element> candidateSubs =
+                zusammenAdaptor.listElementData(context, elementContext, candidateElement.getElementId());
+
+        Id candidateValidationElementId =
+                creatIfAbsentCandidateValidationElementId(candidateSubs, context, elementContext, candidateElement);
+
+        Element orchestrationTemplateElement = getOrchestrationTemplateElement(context, elementContext);
+
+        Collection<Element> orchestrationTemplateSubs =
+                zusammenAdaptor.listElementData(context, elementContext, orchestrationTemplateElement.getElementId());
+
+        Id structureElementId = createIfAbsentStructureElementId(orchestrationTemplateSubs, context, elementContext,
+                orchestrationTemplateElement);
+
+        Element orchestrationTemplateValidationElement =
+                getOrchestrationTemplateValidationElement(orchestrationTemplateSubs);
+
+        OrchestrationTemplateEntity orchestrationTemplateEntity =
+                getOrchestrationTemplateEntity(orchestrationTemplateElement, orchestrationTemplateValidationElement);
+
+        if (StringUtils.isEmpty(orchestrationTemplateEntity.getFileSuffix())) {
+            return;
+        }
+
+        Element candidateContentElement = getCandidateContentElement(candidateSubs);
+
+        VspDetails vspDetails = vspInfoDao.get(new VspDetails(itemId, version));
+        if (isEqual(orchestrationTemplateEntity, getCandidateData(candidateElement, candidateContentElement))) {
+
+            if (isProcessedEntityValid(orchestrationTemplateEntity)) {
+                emptyStructureElementAndSub(context, elementContext, candidateElement.getElementId(),
+                        ElementType.OrchestrationTemplateCandidate, candidateContentElement.getElementId(),
+                        ElementType.OrchestrationTemplateCandidateContent);
+
+                populateOrchestrationTemplateStructure(orchestrationTemplateElement.getData(), structureElementId,
+                        vspDetails, context, elementContext);
+            } else {
+                emptyStructureElementAndSub(context, elementContext, orchestrationTemplateElement.getElementId(),
+                        ElementType.OrchestrationTemplate, orchestrationTemplateValidationElement.getElementId(),
+                        ElementType.OrchestrationTemplateValidationData);
+
+                populateCandidateValidationData(context, elementContext, candidateValidationElementId,
+                        orchestrationTemplateEntity.getValidationData());
+            }
+        } else {
+            populateOrchestrationTemplateStructure(orchestrationTemplateElement.getData(), structureElementId,
+                    vspDetails, context, elementContext);
+        }
+    }
+
+    private boolean isVspMissingAddedElements(String vspId, Version version) {
+        SessionContext context = createSessionContext();
+        ElementContext elementContext = new ElementContext(vspId, version.getId());
+
+        return zusammenAdaptor.listElementsByName(context, elementContext, null,
+                ElementType.OrchestrationTemplateCandidate.name()).stream().noneMatch(
+                candidateSub -> ElementType.OrchestrationTemplateCandidateValidationData.name()
+                                        .equals(candidateSub.getInfo().getName()));
+    }
+
+    private boolean isEqual(OrchestrationTemplateEntity orchestrationTemplateEntity,
+            OrchestrationTemplateCandidateData orchestrationTemplateCandidateData) {
+        return orchestrationTemplateEntity.getFileName().equals(orchestrationTemplateCandidateData.getFileName())
+                       && orchestrationTemplateEntity.getFileSuffix()
+                                  .equals(orchestrationTemplateCandidateData.getFileSuffix());
     }
 
-    private String getVal() {
-      return val;
+    private boolean isProcessedEntityValid(OrchestrationTemplateEntity orchestrationTemplateEntity) {
+        return !orchestrationTemplateEntity.getValidationData().contains(ErrorLevel.ERROR.name());
     }
-  }
 
-  private boolean isNotEmpty(InputStream elementData) {
-    byte[] byteElementData;
-    if (Objects.isNull(elementData)) {
-      return false;
+    private void populateCandidateValidationData(SessionContext context, ElementContext elementContext,
+            Id candidateValidationElementId, String validationData) {
+        ZusammenElement candidateValidationElement =
+                buildStructuralElement(ElementType.OrchestrationTemplateCandidateValidationData, Action.UPDATE);
+        candidateValidationElement.setElementId(candidateValidationElementId);
+        candidateValidationElement.setData(new ByteArrayInputStream(validationData.getBytes()));
+
+        zusammenAdaptor.saveElement(context, elementContext, candidateValidationElement,
+                "Healed Orchestration Template Candidate Validation data");
+    }
+
+    private void populateOrchestrationTemplateStructure(InputStream processedFile, Id structureElementId,
+            VspDetails vspDetails, SessionContext context, ElementContext elementContext) throws Exception {
+        byte[] byteData = FileUtils.toByteArray(processedFile);
+        FileContentHandler contentMap = CommonUtil.validateAndUploadFileContent(OnboardingTypesEnum.ZIP, byteData);
+        OrchestrationTemplateCandidateData orchestrationTemplateEntityData =
+                candidateEntityBuilder
+                        .buildCandidateEntityFromZip(vspDetails, byteData, contentMap, null);
+        String fileDataStructure = orchestrationTemplateEntityData.getFilesDataStructure();
+
+        ZusammenElement orchestrationTemplateStructure =
+                buildStructuralElement(ElementType.OrchestrationTemplateStructure, Action.UPDATE);
+        orchestrationTemplateStructure.setElementId(structureElementId);
+        orchestrationTemplateStructure.setData(new ByteArrayInputStream(fileDataStructure.getBytes()));
+
+        zusammenAdaptor.saveElement(context, elementContext, orchestrationTemplateStructure,
+                "Healed Orchestration Template Structure");
     }
-    try {
-      byteElementData = IOUtils.toByteArray(elementData);
-    } catch (IOException e) {
-      return true;
+
+    private Element getOrchestrationTemplateElement(SessionContext context, ElementContext elementContext) {
+        ElementInfo vspModelElement =
+                zusammenAdaptor.getElementInfoByName(context, elementContext, null, ElementType.VspModel.name())
+                        .orElseThrow(() -> new CoreException(
+                                new ErrorCode.ErrorCodeBuilder().withMessage(MISSING_VSP_MODEL_ERROR).build()));
+
+        return getElement(context, elementContext, vspModelElement.getId(), ElementType.OrchestrationTemplate,
+                MISSING_ORCHESTRATION_TEMPLATE_ERROR);
+    }
+
+    private Element getOrchestrationTemplateValidationElement(Collection<Element> orchestrationTemplateSubs) {
+        return orchestrationTemplateSubs.stream()
+                       .filter(orchestrationTemplateSub -> ElementType.OrchestrationTemplateValidationData.name()
+                                                                   .equals(orchestrationTemplateSub.getInfo()
+                                                                                   .getName())).findFirst().orElseThrow(
+                        () -> new CoreException(new ErrorCode.ErrorCodeBuilder()
+                                                        .withMessage(MISSING_ORCHESTRATION_TEMPLATE_VALIDATE_DATA_ERROR)
+                                                        .build()));
+
+    }
+
+    private Element getCandidateContentElement(Collection<Element> candidateSubs) {
+        return candidateSubs.stream().filter(candidateSub -> ElementType.OrchestrationTemplateCandidateContent.name()
+                                                                     .equals(candidateSub.getInfo().getName()))
+                       .findFirst().orElseThrow(() -> new CoreException(new ErrorCode.ErrorCodeBuilder().withMessage(
+                        MISSING_ORCHESTRATION_TEMPLATE_CANDIDATE_CONTENT_ERROR).build()));
+    }
+
+    private Id createIfAbsentStructureElementId(Collection<Element> orchestrationTemplateSubs, SessionContext context,
+            ElementContext elementContext, Element orchestrationTemplateElement) {
+        return orchestrationTemplateSubs.stream()
+                       .filter(orchestrationTemplateSub -> ElementType.OrchestrationTemplateStructure.name()
+                                                                   .equals(orchestrationTemplateSub.getInfo()
+                                                                                   .getName())).findFirst()
+                       .map(Element::getElementId).orElse(addStructureSubElement(context, elementContext,
+                        ElementType.OrchestrationTemplateStructure, orchestrationTemplateElement.getElementId()));
+    }
+
+    private Id creatIfAbsentCandidateValidationElementId(Collection<Element> candidateSubs, SessionContext context,
+            ElementContext elementContext, Element candidateElement) {
+        return candidateSubs.stream()
+                       .filter(candidateSub -> ElementType.OrchestrationTemplateCandidateValidationData.name()
+                                                       .equals(candidateSub.getInfo().getName())).findFirst()
+                       .map(Element::getElementId).orElse(addStructureSubElement(context, elementContext,
+                        ElementType.OrchestrationTemplateCandidateValidationData, candidateElement.getElementId()));
+    }
+
+    private Element getElement(SessionContext context, ElementContext elementContext, Id parentElementId,
+            ElementType elementType, String errorMessage) {
+        return zusammenAdaptor.getElementByName(context, elementContext, parentElementId, elementType.name())
+                       .orElseThrow(() -> new CoreException(
+                               new ErrorCode.ErrorCodeBuilder().withMessage(errorMessage).build()));
+    }
+
+    private OrchestrationTemplateEntity getOrchestrationTemplateEntity(Element orchestrationTemplateElement,
+            Element validationDataElement) {
+        OrchestrationTemplateEntity orchestrationTemplateEntity = new OrchestrationTemplateEntity();
+
+        if (isNotEmpty(orchestrationTemplateElement.getData())) {
+            orchestrationTemplateEntity
+                    .setContentData(ByteBuffer.wrap(FileUtils.toByteArray(orchestrationTemplateElement.getData())));
+        }
+        orchestrationTemplateEntity
+                .setFileSuffix(validationDataElement.getInfo().getProperty(InfoPropertyName.FILE_SUFFIX.getVal()));
+        orchestrationTemplateEntity
+                .setFileName(validationDataElement.getInfo().getProperty(InfoPropertyName.FILE_NAME.getVal()));
+        if (isNotEmpty(validationDataElement.getData())) {
+            orchestrationTemplateEntity
+                    .setValidationData(new String(FileUtils.toByteArray(validationDataElement.getData())));
+        }
+        return orchestrationTemplateEntity;
+    }
+
+    private OrchestrationTemplateCandidateData getCandidateData(Element candidateElement,
+            Element candidateContentElement) {
+        OrchestrationTemplateCandidateData candidateData = new OrchestrationTemplateCandidateData();
+        candidateData.setFilesDataStructure(new String(FileUtils.toByteArray(candidateElement.getData())));
+        candidateData.setContentData(ByteBuffer.wrap(FileUtils.toByteArray(candidateContentElement.getData())));
+        candidateData
+                .setFileSuffix(candidateContentElement.getInfo().getProperty(InfoPropertyName.FILE_SUFFIX.getVal()));
+        candidateData.setFileName(candidateContentElement.getInfo().getProperty(InfoPropertyName.FILE_NAME.getVal()));
+        return candidateData;
+    }
+
+    private Id addStructureSubElement(SessionContext context, ElementContext elementContext, ElementType elementType,
+            Id parentElementId) {
+        ZusammenElement newElement = buildStructuralElement(elementType, Action.CREATE);
+
+        ZusammenElement parentElement = buildElement(parentElementId, Action.IGNORE);
+        parentElement.addSubElement(newElement);
+
+        return zusammenAdaptor.saveElement(context, elementContext, parentElement,
+                String.format("Add element %s under element id %s", elementType.name(), parentElementId))
+                       .getSubElements().iterator().next().getElementId();
+    }
+
+    private void emptyStructureElementAndSub(SessionContext context, ElementContext elementContext, Id elementId,
+            ElementType elementType, Id subElementId, ElementType subElementType) {
+        ZusammenElement subElement = buildStructuralElement(subElementType, Action.UPDATE);
+        subElement.setElementId(subElementId);
+        subElement.setData(new ByteArrayInputStream(EMPTY_DATA_BYTES));
+
+        ZusammenElement element = buildStructuralElement(elementType, Action.UPDATE);
+        element.setElementId(elementId);
+        element.setData(new ByteArrayInputStream(EMPTY_DATA_BYTES));
+        element.addSubElement(subElement);
+
+        zusammenAdaptor.saveElement(context, elementContext, element,
+                String.format("Empty element %s and its sub element %s", elementType.name(), subElementType.name()));
+    }
+
+    public enum InfoPropertyName {
+        FILE_SUFFIX("fileSuffix"), FILE_NAME("fileName");
+
+        private String val;
+
+        InfoPropertyName(String val) {
+            this.val = val;
+        }
+
+        private String getVal() {
+            return val;
+        }
+    }
+
+    private boolean isNotEmpty(InputStream elementData) {
+        byte[] byteElementData;
+        if (Objects.isNull(elementData)) {
+            return false;
+        }
+        try {
+            byteElementData = IOUtils.toByteArray(elementData);
+        } catch (IOException e) {
+            return true;
+        }
+        return !ArrayUtils.isEmpty(byteElementData);
     }
-    return !ArrayUtils.isEmpty(byteElementData);
-  }
 }