1 files changed, 617 insertions, 0 deletions
diff --git a/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-impl/src/main/java/org/openecomp/sdc/validation/impl/util/ResourceValidationHeatValidator.java b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-impl/src/main/java/org/openecomp/sdc/validation/impl/util/ResourceValidationHeatValidator.java
new file mode 100644
index 0000000000..3457bed1e9
--- /dev/null
+++ b/openecomp-be/lib/openecomp-sdc-validation-lib/openecomp-sdc-validation-impl/src/main/java/org/openecomp/sdc/validation/impl/util/ResourceValidationHeatValidator.java
@@ -0,0 +1,617 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.validation.impl.util;
+
+import org.apache.commons.collections4.CollectionUtils;
+import org.apache.commons.collections4.MapUtils;
+import org.openecomp.core.validation.errors.ErrorMessagesFormatBuilder;
+import org.openecomp.core.validation.errors.Messages;
+import org.openecomp.core.validation.types.GlobalValidationContext;
+import org.openecomp.sdc.datatypes.error.ErrorLevel;
+import org.openecomp.sdc.heat.datatypes.model.HeatOrchestrationTemplate;
+import org.openecomp.sdc.heat.datatypes.model.HeatResourcesTypes;
+import org.openecomp.sdc.heat.datatypes.model.Output;
+import org.openecomp.sdc.heat.datatypes.model.PolicyTypes;
+import org.openecomp.sdc.heat.datatypes.model.PropertiesMapKeyTypes;
+import org.openecomp.sdc.heat.datatypes.model.Resource;
+import org.openecomp.sdc.heat.datatypes.model.ResourceReferenceFunctions;
+import org.openecomp.sdc.heat.datatypes.model.ResourceTypeToMessageString;
+import org.openecomp.sdc.heat.services.HeatStructureUtil;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+
+
+public class ResourceValidationHeatValidator {
+
+  /**
+   * Validate resource type.
+   *
+   * @param fileName                               the file name
+   * @param baseFileName                           the base file name
+   * @param securityGroupsNamesFromBaseFileOutputs the security groups names from base file outputs
+   * @param heatOrchestrationTemplate              the heat orchestration template
+   * @param globalContext                          the global context
+   */
+  public static void validateResourceType(String fileName, String baseFileName,
+                                          Set<String> securityGroupsNamesFromBaseFileOutputs,
+                                          HeatOrchestrationTemplate heatOrchestrationTemplate,
+                                          GlobalValidationContext globalContext) {
+    Map<String, Resource> resourceMap =
+        heatOrchestrationTemplate.getResources() == null ? new HashMap<>()
+            : heatOrchestrationTemplate.getResources();
+    Map<String, Integer> numberOfVisitsInPort = new HashMap<>();
+    Set<String> resourcesNames = resourceMap.keySet();
+    Set<String> sharedResourcesFromOutputMap =
+        getSharedResourcesNamesFromOutputs(fileName, heatOrchestrationTemplate.getOutputs(),
+            globalContext);
+    boolean isBaseFile = baseFileName != null && fileName.equals(baseFileName);
+
+    Map<HeatResourcesTypes, List<String>> resourceTypeToNamesListMap = HeatResourcesTypes
+        .getListForResourceType(HeatResourcesTypes.NOVA_SERVER_GROUP_RESOURCE_TYPE,
+            HeatResourcesTypes.NEUTRON_SECURITY_GROUP_RESOURCE_TYPE,
+            HeatResourcesTypes.CONTRAIL_NETWORK_RULE_RESOURCE_TYPE);
+
+    initResourceTypeListWithItsResourcesNames(fileName, resourceTypeToNamesListMap, resourceMap,
+        sharedResourcesFromOutputMap, globalContext);
+    initVisitedPortsMap(fileName, resourceMap, numberOfVisitsInPort, globalContext);
+
+
+    for (Map.Entry<String, Resource> resourceEntry : resourceMap.entrySet()) {
+      String resourceType = resourceEntry.getValue().getType();
+      validateSecurityGroupsFromBaseOutput(fileName, resourceEntry, isBaseFile,
+          securityGroupsNamesFromBaseFileOutputs, globalContext);
+      checkResourceDependsOn(fileName, resourceEntry.getValue(), resourcesNames, globalContext);
+
+      if (Objects.isNull(resourceType)) {
+        globalContext.addMessage(fileName, ErrorLevel.WARNING, ErrorMessagesFormatBuilder
+            .getErrorWithParameters(Messages.INVALID_RESOURCE_TYPE.getErrorMessage(), "null",
+                resourceEntry.getKey()));
+      } else {
+        HeatResourcesTypes heatResourceType = HeatResourcesTypes.findByHeatResource(resourceType);
+
+        if (heatResourceType != null) {
+          switch (heatResourceType) {
+            case NOVA_SERVER_RESOURCE_TYPE:
+              validateNovaServerResourceType(fileName, resourceEntry, numberOfVisitsInPort,
+                  resourceTypeToNamesListMap
+                      .get(HeatResourcesTypes.NOVA_SERVER_GROUP_RESOURCE_TYPE),
+                  heatOrchestrationTemplate, globalContext);
+              break;
+
+            case NOVA_SERVER_GROUP_RESOURCE_TYPE:
+              validateNovaServerGroupPolicy(fileName, resourceEntry, globalContext);
+              break;
+
+            case RESOURCE_GROUP_RESOURCE_TYPE:
+              validateResourceGroupType(fileName, resourceEntry, globalContext);
+              break;
+
+            case NEUTRON_PORT_RESOURCE_TYPE:
+              validateNeutronPortType(fileName, resourceEntry, resourceTypeToNamesListMap
+                  .get(HeatResourcesTypes.NEUTRON_SECURITY_GROUP_RESOURCE_TYPE), globalContext);
+              break;
+
+            case CONTRAIL_NETWORK_ATTACH_RULE_RESOURCE_TYPE:
+              validateContrailAttachPolicyType(resourceEntry, resourceTypeToNamesListMap
+                  .get(HeatResourcesTypes.CONTRAIL_NETWORK_RULE_RESOURCE_TYPE));
+              break;
+            default:
+          }
+        } else {
+          if (HeatValidationService.isNestedResource(resourceType)) {
+            handleNestedResourceType(fileName, resourceEntry.getKey(), resourceEntry.getValue(),
+                globalContext);
+          }
+        }
+      }
+    }
+
+    checkForEmptyResourceNamesInMap(fileName,
+        CollectionUtils.isEmpty(securityGroupsNamesFromBaseFileOutputs), resourceTypeToNamesListMap,
+        globalContext);
+    handleOrphanPorts(fileName, numberOfVisitsInPort, globalContext);
+  }
+
+
+  private static void validateNovaServerResourceType(String fileName,
+                                                     Map.Entry<String, Resource> resourceEntry,
+                                                     Map<String, Integer> numberOfVisitsInPort,
+                                                     List<String> serverGroupResourcesNames,
+                                                     HeatOrchestrationTemplate
+                                                         heatOrchestrationTemplate,
+                                                     GlobalValidationContext globalContext) {
+    validateAssignedValueForImageOrFlavorFromNova(fileName, resourceEntry, globalContext);
+    validateNovaServerPortBinding(fileName, resourceEntry.getValue(), numberOfVisitsInPort,
+        globalContext);
+    validateAllServerGroupsPointedByServerExistAndDefined(fileName, resourceEntry,
+        serverGroupResourcesNames, heatOrchestrationTemplate, globalContext);
+
+  }
+
+
+  private static void handleNestedResourceType(String fileName, String resourceName,
+                                               Resource resource,
+                                               GlobalValidationContext globalContext) {
+    validateAllPropertiesMatchNestedParameters(fileName, resourceName, resource, globalContext);
+    validateLoopsOfNestingFromFile(fileName, resource.getType(), globalContext);
+  }
+
+
+  private static void validateResourceGroupType(String fileName,
+                                                Map.Entry<String, Resource> resourceEntry,
+                                                GlobalValidationContext globalContext) {
+    Resource resourceDef = HeatStructureUtil
+        .getResourceDef(fileName, resourceEntry.getKey(), resourceEntry.getValue(), globalContext);
+    // validateResourceGroupTypeIsSupported(fileName, resourceEntry.getKey(),resourceDef.getType(),
+    // globalContext);
+    if (resourceDef != null) {
+      if (Objects.nonNull(resourceDef.getType())
+          && HeatValidationService.isNestedResource(resourceDef.getType())) {
+        handleNestedResourceType(fileName, resourceDef.getType(), resourceDef, globalContext);
+      }
+    }
+  }
+
+
+  private static void validateAllPropertiesMatchNestedParameters(String fileName,
+                                                                 String resourceName,
+                                                                 Resource resource,
+                                                                 GlobalValidationContext
+                                                                     globalContext) {
+
+    String resourceType = resource.getType();
+    if (globalContext.getFileContextMap().containsKey(resourceType)) {
+      Set<String> propertiesNames =
+          resource.getProperties() == null ? null : resource.getProperties().keySet();
+      if (CollectionUtils.isNotEmpty(propertiesNames)) {
+        HeatValidationService
+            .checkNestedParameters(fileName, resourceType, resourceName, globalContext,
+                propertiesNames);
+      }
+    } else {
+      globalContext.addMessage(resourceType, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
+          .getErrorWithParameters(Messages.MISSING_NESTED_FILE.getErrorMessage(), resourceType));
+    }
+  }
+
+
+  private static void validateAssignedValueForImageOrFlavorFromNova(String fileName,
+                                                                    Map.Entry<String, Resource>
+                                                                        resourceEntry,
+                                                                    GlobalValidationContext
+                                                                        globalContext) {
+
+    Resource resource = resourceEntry.getValue();
+    Map<String, Object> propertiesMap = resource.getProperties();
+    if (propertiesMap.get(PropertiesMapKeyTypes.IMAGE.getKeyMap()) == null
+        && propertiesMap.get(PropertiesMapKeyTypes.FLAVOR.getKeyMap()) == null) {
+      globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
+          .getErrorWithParameters(Messages.MISSING_IMAGE_AND_FLAVOR.getErrorMessage(),
+              resourceEntry.getKey()));
+    }
+  }
+
+
+  private static void validateLoopsOfNestingFromFile(String fileName, String resourceType,
+                                                     GlobalValidationContext globalContext) {
+    List<String> filesInLoop = new ArrayList<>(Collections.singletonList(fileName));
+    if (HeatValidationService
+        .isNestedLoopExistInFile(fileName, resourceType, filesInLoop, globalContext)) {
+      globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
+          .getErrorWithParameters(Messages.NESTED_LOOP.getErrorMessage(),
+              HeatValidationService.drawFilesLoop(filesInLoop)));
+    }
+  }
+
+
+  /* validation 22*/
+  @SuppressWarnings("unchecked")
+  private static void validateNovaServerPortBinding(String fileName, Resource resource,
+                                                    Map<String, Integer> numberOfVisitsInPort,
+                                                    GlobalValidationContext globalContext) {
+
+    Map<String, Object> propertiesMap = resource.getProperties();
+    List<Object> networksList =
+        (List<Object>) propertiesMap.get(PropertiesMapKeyTypes.NETWORKS.getKeyMap());
+
+    if (CollectionUtils.isNotEmpty(networksList)) {
+      networksList
+          .stream()
+          .filter(networkObject -> networkObject instanceof Map)
+          .forEach(networkObject -> {
+            Map<String, Object> portValueMap =
+                (Map<String, Object>) ((Map) networkObject).get("port");
+            if (MapUtils.isNotEmpty(portValueMap)) {
+              checkPortBindingFromMap(fileName, portValueMap, numberOfVisitsInPort, globalContext);
+            }
+          });
+    }
+  }
+
+  /* validation 23*/
+  @SuppressWarnings("unchecked")
+  private static void validateAllServerGroupsPointedByServerExistAndDefined(String fileName,
+                                              Map.Entry<String, Resource> resourceEntry,
+                                              List<String> serverGroupNamesList,
+                                              HeatOrchestrationTemplate heatOrchestrationTemplate,
+                                              GlobalValidationContext globalContext) {
+    Map<String, Resource> resourcesMap = heatOrchestrationTemplate.getResources();
+
+    Map<String, Object> resourceProperties = resourceEntry.getValue().getProperties();
+    Map<String, Object> schedulerHintsMap = resourceProperties == null ? null
+        : (Map<String, Object>) resourceProperties
+            .get(ResourceReferenceFunctions.SCHEDULER_HINTS.getFunction());
+
+    if (MapUtils.isNotEmpty(schedulerHintsMap)) {
+      for (Object serverGroupMap : schedulerHintsMap.values()) {
+        Map<String, Object> currentServerMap = (Map<String, Object>) serverGroupMap;
+        String serverResourceName = currentServerMap == null ? null
+            : (String) currentServerMap.get(ResourceReferenceFunctions.GET_RESOURCE.getFunction());
+        Resource serverResource = serverResourceName == null || resourcesMap == null ? null
+            : resourcesMap.get(serverResourceName);
+        if (serverResource != null && !serverResource.getType()
+            .equals(HeatResourcesTypes.NOVA_SERVER_GROUP_RESOURCE_TYPE.getHeatResource())) {
+          globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
+              .getErrorWithParameters(Messages.SERVER_NOT_DEFINED_FROM_NOVA.getErrorMessage(),
+                  serverResourceName, resourceEntry.getKey()));
+        } else {
+          serverGroupNamesList.remove(serverResourceName);
+        }
+      }
+    }
+  }
+
+
+  /* validation 24*/
+  @SuppressWarnings("unchecked")
+  private static void validateNovaServerGroupPolicy(String fileName,
+                                                    Map.Entry<String, Resource> resourceEntry,
+                                                    GlobalValidationContext globalContext) {
+
+    Resource resource = resourceEntry.getValue();
+    List<String> policiesList = resource.getProperties() == null ? null
+        : (List<String>) resource.getProperties().get("policies");
+
+    if (CollectionUtils.isNotEmpty(policiesList)) {
+      if (policiesList.size() == 1) {
+        String policy = policiesList.get(0);
+        if (!PolicyTypes.isGivenPolicyValid(policy)) {
+          globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
+              .getErrorWithParameters(Messages.WRONG_POLICY_IN_SERVER_GROUP.getErrorMessage(),
+                  resourceEntry.getKey()));
+        }
+      } else {
+        globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
+            .getErrorWithParameters(Messages.WRONG_POLICY_IN_SERVER_GROUP.getErrorMessage(),
+                resourceEntry.getKey()));
+      }
+    }
+  }
+
+
+  private static void validateNeutronPortType(String filename,
+                                              Map.Entry<String, Resource> resourceEntry,
+                                              List<String> securityGroupResourceNameList,
+                                              GlobalValidationContext globalContext) {
+    validateAllSecurityGroupsAreUsed(filename, resourceEntry, securityGroupResourceNameList,
+        globalContext);
+
+  }
+
+
+  @SuppressWarnings("unchecked")
+  private static void validateAllSecurityGroupsAreUsed(String filename,
+                                                       Map.Entry<String, Resource> resourceEntry,
+                                                       List<String> securityGroupResourceNameList,
+                                                       GlobalValidationContext globalContext) {
+    Map<String, Object> propertiesMap = resourceEntry.getValue().getProperties();
+
+    if (MapUtils.isEmpty(propertiesMap)) {
+      return;
+    }
+
+    Object securityGroupsValue = propertiesMap.get("security_groups");
+
+    if (Objects.isNull(securityGroupsValue)) {
+      return;
+    }
+
+    if (securityGroupsValue instanceof List) {
+      List<Object> securityGroupsListFromCurrResource =
+          (List<Object>) propertiesMap.get("security_groups");
+      for (Object securityGroup : securityGroupsListFromCurrResource) {
+        removeSecurityGroupNamesFromListByGivenFunction(filename,
+            ResourceReferenceFunctions.GET_RESOURCE.getFunction(), securityGroup,
+            securityGroupResourceNameList, globalContext);
+      }
+    }
+  }
+
+
+  private static void validateSecurityGroupsFromBaseOutput(String filename,
+                                                  Map.Entry<String, Resource> resourceEntry,
+                                                  boolean isBaseFile,
+                                                  Set<String> securityGroupNamesFromBaseOutput,
+                                                  GlobalValidationContext globalContext) {
+    if (!isBaseFile && CollectionUtils.isNotEmpty(securityGroupNamesFromBaseOutput)) {
+      Map<String, Object> propertiesMap = resourceEntry.getValue().getProperties();
+
+      if (MapUtils.isEmpty(propertiesMap)) {
+        return;
+      }
+
+      for (Map.Entry<String, Object> propertyEntry : propertiesMap.entrySet()) {
+        removeSecurityGroupNamesFromListByGivenFunction(filename,
+            ResourceReferenceFunctions.GET_PARAM.getFunction(), propertyEntry.getValue(),
+            securityGroupNamesFromBaseOutput, globalContext);
+      }
+    }
+  }
+
+
+  private static void removeSecurityGroupNamesFromListByGivenFunction(String filename,
+                                                                      String functionName,
+                                                                      Object securityGroup,
+                                            Collection<String> securityGroupResourceNameList,
+                                            GlobalValidationContext globalContext) {
+    Set<String> securityGroupsNamesFromFunction = HeatStructureUtil
+        .getReferencedValuesByFunctionName(filename, functionName, securityGroup, globalContext);
+    securityGroupsNamesFromFunction.forEach(securityGroupResourceNameList::remove);
+  }
+
+
+  @SuppressWarnings("unchecked")
+  private static void validateContrailAttachPolicyType(Map.Entry<String, Resource> resourceEntry,
+                                                       List<String> networkPolicyResourceNames) {
+    Map<String, Object> propertiesMap = resourceEntry.getValue().getProperties();
+
+    if (MapUtils.isNotEmpty(propertiesMap)) {
+      Map<String, Object> policyMap = (Map<String, Object>) propertiesMap.get("policy");
+      if (MapUtils.isNotEmpty(policyMap)) {
+        List<Object> securityGroupList =
+            (List<Object>) policyMap.get(ResourceReferenceFunctions.GET_ATTR.getFunction());
+        //noinspection SuspiciousMethodCalls
+        if (CollectionUtils.isNotEmpty(securityGroupList)) {
+          //noinspection SuspiciousMethodCalls
+          networkPolicyResourceNames.remove(securityGroupList.get(0));
+        }
+      }
+    }
+  }
+
+
+  private static void getResourceNamesListFromSpecificResource(String filename,
+                                                               List<String> resourcesNames,
+                                                               HeatResourcesTypes heatResourcesType,
+                                                               Map<String, Resource> resourcesMap,
+                                                       Set<String> sharedResourcesFromOutputMap,
+                                                       GlobalValidationContext globalContext) {
+
+    for (Map.Entry<String, Resource> resourceEntry : resourcesMap.entrySet()) {
+      String resourceType = resourceEntry.getValue().getType();
+      if (Objects.isNull(resourceType)) {
+        globalContext.addMessage(filename, ErrorLevel.WARNING, ErrorMessagesFormatBuilder
+            .getErrorWithParameters(Messages.INVALID_RESOURCE_TYPE.getErrorMessage(), null,
+                resourceEntry.getKey()));
+      } else {
+        if (resourceType.equals(heatResourcesType.getHeatResource())
+            && !isSharedResource(resourceEntry.getKey(), sharedResourcesFromOutputMap)) {
+          resourcesNames.add(resourceEntry.getKey());
+        }
+      }
+    }
+  }
+
+
+  private static boolean isSharedResource(String resourceName,
+                                          Set<String> sharedResourcesFromOutputMap) {
+    return !CollectionUtils.isEmpty(sharedResourcesFromOutputMap)
+        && sharedResourcesFromOutputMap.contains(resourceName);
+  }
+
+  /**
+   * Handle not empty resource names list.
+   *
+   * @param fileName              the file name
+   * @param resourcesNameList     the resources name list
+   * @param securityOrServerGroup the security or server group
+   * @param globalContext         the global context
+   */
+  public static void handleNotEmptyResourceNamesList(String fileName,
+                                                     Collection<String> resourcesNameList,
+                                                     String securityOrServerGroup,
+                                                     GlobalValidationContext globalContext) {
+    if (CollectionUtils.isNotEmpty(resourcesNameList)) {
+      resourcesNameList.forEach(name ->
+          globalContext
+              .addMessage(
+                  fileName,
+                  ErrorLevel.WARNING,
+                  ErrorMessagesFormatBuilder
+                      .getErrorWithParameters(
+                          Messages.SERVER_OR_SECURITY_GROUP_NOT_IN_USE.getErrorMessage(),
+                          securityOrServerGroup, name)));
+    }
+  }
+
+
+  private static void initVisitedPortsMap(String filename, Map<String, Resource> resourceMap,
+                                          Map<String, Integer> numberOfVisitsInPort,
+                                          GlobalValidationContext globalContext) {
+    for (Map.Entry<String, Resource> resourceEntry : resourceMap.entrySet()) {
+      String resourceType = resourceEntry.getValue().getType();
+
+      if (Objects.isNull(resourceType)) {
+        globalContext.addMessage(filename, ErrorLevel.WARNING, ErrorMessagesFormatBuilder
+            .getErrorWithParameters(Messages.INVALID_RESOURCE_TYPE.getErrorMessage(), "null",
+                resourceEntry.getKey()));
+      } else {
+        if (resourceType.equals(HeatResourcesTypes.NEUTRON_PORT_RESOURCE_TYPE.getHeatResource())) {
+          numberOfVisitsInPort.put(resourceEntry.getKey(), 0);
+        }
+      }
+    }
+  }
+
+  private static boolean checkIfPortWasVisited(String resourcePortName,
+                                               Map<String, Integer> numberOfVisitsInPort) {
+    return numberOfVisitsInPort.containsKey(resourcePortName)
+        && numberOfVisitsInPort.get(resourcePortName) == 1;
+  }
+
+
+  private static void incrementNumberOfVisitsInPort(String resourcePortName,
+                                                    Map<String, Integer> numberOfVisitsInPort) {
+    if (numberOfVisitsInPort.containsKey(resourcePortName)) {
+      numberOfVisitsInPort.put(resourcePortName, numberOfVisitsInPort.get(resourcePortName) + 1);
+    }
+  }
+
+
+  private static void handleOrphanPorts(String fileName, Map<String, Integer> numberOfVisitsInPort,
+                                        GlobalValidationContext globalContext) {
+    numberOfVisitsInPort
+        .entrySet()
+        .stream()
+        .filter(entry -> entry.getValue() == 0)
+        .forEach(entry ->
+            globalContext
+                .addMessage(
+                    fileName,
+                    ErrorLevel.WARNING,
+                    ErrorMessagesFormatBuilder
+                        .getErrorWithParameters(
+                            Messages.PORT_NO_BIND_TO_ANY_NOVA_SERVER.getErrorMessage(),
+                            entry.getKey())));
+  }
+
+  @SuppressWarnings("unchecked")
+  private static void checkResourceDependsOn(String fileName, Resource resource,
+                                             Set<String> resourcesNames,
+                                             GlobalValidationContext globalContext) {
+    Object dependencies = resource.getDepends_on();
+    if (dependencies instanceof Collection) {
+      ((Collection<String>) dependencies)
+          .stream()
+          .filter(resource_id -> !resourcesNames.contains(resource_id))
+          .forEach(resource_id -> globalContext.addMessage(fileName, ErrorLevel.ERROR,
+              ErrorMessagesFormatBuilder
+                  .getErrorWithParameters(Messages.MISSING_RESOURCE_IN_DEPENDS_ON.getErrorMessage(),
+                      (String) resource_id)));
+    } else if (dependencies instanceof String) {
+      if (!resourcesNames.contains(dependencies)) {
+        globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
+            .getErrorWithParameters(Messages.MISSING_RESOURCE_IN_DEPENDS_ON.getErrorMessage(),
+                (String) dependencies));
+      }
+    }
+  }
+
+
+  private static void checkPortBindingFromMap(String fileName, Map<String, Object> portValueMap,
+                                              Map<String, Integer> numberOfVisitsInPort,
+                                              GlobalValidationContext globalContext) {
+    String resourcePortName =
+        (String) portValueMap.get(ResourceReferenceFunctions.GET_RESOURCE.getFunction());
+    if (checkIfPortWasVisited(resourcePortName, numberOfVisitsInPort)) {
+      globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
+          .getErrorWithParameters(Messages.MORE_THAN_ONE_BIND_FROM_NOVA_TO_PORT.getErrorMessage(),
+              (String) portValueMap.get(ResourceReferenceFunctions.GET_RESOURCE.getFunction())));
+    } else {
+      incrementNumberOfVisitsInPort(resourcePortName, numberOfVisitsInPort);
+    }
+  }
+
+
+  private static void initResourceTypeListWithItsResourcesNames(String filename,
+                                       Map<HeatResourcesTypes, List<String>> resourcesTypesListMap,
+                                       Map<String, Resource> resourcesMap,
+                                       Set<String> sharedResourcesFromOutputsMap,
+                                       GlobalValidationContext globalContext) {
+    for (Map.Entry<HeatResourcesTypes, List<String>> resourcesTypesToListEntry
+        : resourcesTypesListMap.entrySet()) {
+      HeatResourcesTypes currentType = resourcesTypesToListEntry.getKey();
+      List<String> currNamesList = new ArrayList<>();
+      getResourceNamesListFromSpecificResource(filename, currNamesList, currentType, resourcesMap,
+          sharedResourcesFromOutputsMap, globalContext);
+      resourcesTypesListMap.put(currentType, currNamesList);
+    }
+  }
+
+
+  private static void checkForEmptyResourceNamesInMap(String fileName,
+                                        boolean isBaseFileContainPorts,
+                                        Map<HeatResourcesTypes, List<String>> resourcesTypesListMap,
+                                        GlobalValidationContext globalContext) {
+    if (isBaseFileContainPorts) {
+      for (Map.Entry<HeatResourcesTypes, List<String>> resourcesTypesListEntry
+          : resourcesTypesListMap.entrySet()) {
+        handleNotEmptyResourceNamesList(fileName, resourcesTypesListEntry.getValue(),
+            ResourceTypeToMessageString
+                .getTypeForMessageFromResourceType(resourcesTypesListEntry.getKey()),
+            globalContext);
+      }
+    }
+  }
+
+
+  private static Set<String> getSharedResourcesNamesFromOutputs(String filename,
+                                                  Map<String, Output> outputsMap,
+                                                  GlobalValidationContext globalContext) {
+    Set<String> sharedResources = new HashSet<>();
+
+    if (MapUtils.isEmpty(outputsMap)) {
+      return null;
+    }
+
+    for (Map.Entry<String, Output> outputEntry : outputsMap.entrySet()) {
+      Output output = outputEntry.getValue();
+      Object valueObject = output.getValue();
+      if (valueObject instanceof Map) {
+        Map<String, Object> outputValueMap = (Map<String, Object>) valueObject;
+        Object getResourceValue =
+            outputValueMap.get(ResourceReferenceFunctions.GET_RESOURCE.getFunction());
+        if (Objects.nonNull(getResourceValue)) {
+          if (getResourceValue instanceof String) {
+            String resourceName =
+                (String) outputValueMap.get(ResourceReferenceFunctions.GET_RESOURCE.getFunction());
+            sharedResources.add(resourceName);
+          } else {
+            globalContext.addMessage(filename, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
+                .getErrorWithParameters(Messages.INVALID_GET_RESOURCE_SYNTAX.getErrorMessage(),
+                    getResourceValue.toString()));
+          }
+        }
+
+      }
+    }
+
+    return sharedResources;
+  }
+}