Support of get_property in property assignment

Refactors the current way store a get_input function allowing
to support different get functions (get_property in this case).
The information stored allows recreating and correctly validating
the get function.
Fix get function schema validation, the schema was being ignored.
Improve validation error status and messages.
Improve tosca get function dialog.

Change-Id: I5de5f96dfba3c7a0fbb458885af5528bea7835aa
Issue-ID: SDC-4014
Signed-off-by: andre.schmid <andre.schmid@est.tech>

3 files changed, 286 insertions, 59 deletions

diff --git a/catalog-be/src/main/docker/backend/chef-repo/cookbooks/sdc-catalog-be/files/default/error-configuration.yaml b/catalog-be/src/main/docker/backend/chef-repo/cookbooks/sdc-catalog-be/files/default/error-configuration.yaml
index b539bd0378..99abb7b1ab 100644
--- a/catalog-be/src/main/docker/backend/chef-repo/cookbooks/sdc-catalog-be/files/default/error-configuration.yaml
+++ b/catalog-be/src/main/docker/backend/chef-repo/cookbooks/sdc-catalog-be/files/default/error-configuration.yaml
@@ -2543,7 +2543,7 @@ errors:
     # %1 - "Model name"
     DATA_TYPES_NOT_LOADED: {
         code: 500,
-        message: "Error: Could not fetch data types from data base with model %1",
+        message: "Could not fetch data types from data base with model %1",
         messageId: "SVC4153"
     }
     
@@ -2660,3 +2660,60 @@ errors:
         messageId: "SVC4164"
     }
 
+    #---------SVC4165-----------------------------
+    # %1 - input origin
+    TOSCA_GET_FUNCTION_INPUTS_ONLY_SELF_ERROR: {
+        code: 400,
+        message: "Invalid get_input definition. Inputs can only be get from SELF, the given origin was '%1'",
+        messageId: "SVC4165"
+    }
+
+    #---------SVC4166-----------------------------
+    # %1 - input name
+    # %2 - input origin
+    TOSCA_GET_FUNCTION_INPUTS_NOT_FOUND: {
+        code: 404,
+        message: "The given input '%1' was not found on '%2'.",
+        messageId: "SVC4166"
+    }
+
+    #---------SVC4167-----------------------------
+    # %1 - Tosca function
+    # %2 - Referred input type
+    # %3 - Selected property type
+    TOSCA_GET_FUNCTION_TYPE_DIVERGE: {
+        code: 400,
+        message: "Could not set %1. Referred input type '%2' diverges from the selected property type '%3'.",
+        messageId: "SVC4167"
+    }
+
+    #---------SVC4168-----------------------------
+    # %1 - Tosca function
+    # %2 - Referred input schema
+    # %3 - Selected property schema
+    TOSCA_GET_FUNCTION_SCHEMA_DIVERGE: {
+        code: 400,
+        message: "Could not set %1. Referred input schema '%2' diverges from the selected property schema '%3'.",
+        messageId: "SVC4168"
+    }
+
+    #---------SVC4169-----------------------------
+    # %1 - Property type (property|input|attribute)
+    # %1 - Property name
+    # %2 - Property origin
+    TOSCA_GET_FUNCTION_PROPERTY_NOT_FOUND: {
+        code: 404,
+        message: "The given %1 '%2' was not found on '%3'.",
+        messageId: "SVC4169"
+    }
+
+    #---------SVC4170-----------------------------
+    # %1 - Property type (property|input|attribute)
+    # %2 - Property name/path
+    # %3 - Property data type
+    TOSCA_GET_FUNCTION_PROPERTY_DATA_TYPE_NOT_FOUND: {
+        code: 404,
+        message: "The %1 '%2' type '%3' was not found.",
+        messageId: "SVC4170"
+    }
+
diff --git a/catalog-be/src/main/java/org/openecomp/sdc/be/components/impl/ComponentInstanceBusinessLogic.java b/catalog-be/src/main/java/org/openecomp/sdc/be/components/impl/ComponentInstanceBusinessLogic.java
index 0b284226ee..1fa459da80 100644
--- a/catalog-be/src/main/java/org/openecomp/sdc/be/components/impl/ComponentInstanceBusinessLogic.java
+++ b/catalog-be/src/main/java/org/openecomp/sdc/be/components/impl/ComponentInstanceBusinessLogic.java
@@ -43,10 +43,12 @@ import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.collections.MapUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.tuple.ImmutablePair;
+import org.onap.sdc.tosca.datatypes.model.PropertyType;
 import org.openecomp.sdc.be.components.impl.exceptions.BusinessLogicException;
 import org.openecomp.sdc.be.components.impl.exceptions.ByActionStatusComponentException;
 import org.openecomp.sdc.be.components.impl.exceptions.ByResponseFormatComponentException;
 import org.openecomp.sdc.be.components.impl.exceptions.ComponentException;
+import org.openecomp.sdc.be.components.impl.exceptions.ToscaGetFunctionExceptionSupplier;
 import org.openecomp.sdc.be.components.impl.instance.ComponentInstanceChangeOperationOrchestrator;
 import org.openecomp.sdc.be.components.impl.utils.DirectivesUtil;
 import org.openecomp.sdc.be.components.merge.instance.ComponentInstanceMergeDataBusinessLogic;
@@ -69,9 +71,11 @@ import org.openecomp.sdc.be.datatypes.elements.GetPolicyValueDataDefinition;
 import org.openecomp.sdc.be.datatypes.elements.PropertyDataDefinition;
 import org.openecomp.sdc.be.datatypes.elements.RequirementDataDefinition;
 import org.openecomp.sdc.be.datatypes.elements.SchemaDefinition;
+import org.openecomp.sdc.be.datatypes.elements.ToscaGetFunctionDataDefinition;
 import org.openecomp.sdc.be.datatypes.enums.ComponentTypeEnum;
 import org.openecomp.sdc.be.datatypes.enums.NodeTypeEnum;
 import org.openecomp.sdc.be.datatypes.enums.OriginTypeEnum;
+import org.openecomp.sdc.be.datatypes.enums.PropertySource;
 import org.openecomp.sdc.be.datatypes.enums.ResourceTypeEnum;
 import org.openecomp.sdc.be.datatypes.tosca.ToscaGetFunctionType;
 import org.openecomp.sdc.be.exception.BusinessException;
@@ -167,14 +171,13 @@ public class ComponentInstanceBusinessLogic extends BaseBusinessLogic {
     private static final String RESTRICTED_OPERATION_ON_COMPONENT = "Restricted operation for user: {} on component {}";
     private static final String RESOURCE_INSTANCE = "resource instance";
     private static final String SERVICE = "service";
-    private static final String UPDATE_PROPERTY_CONTEXT = "UpdatePropertyValueOnComponentInstance";
-
-    private ComponentInstanceOperation componentInstanceOperation;
-    private ArtifactsBusinessLogic artifactBusinessLogic;
-    private ComponentInstanceMergeDataBusinessLogic compInstMergeDataBL;
-    private ComponentInstanceChangeOperationOrchestrator onChangeInstanceOperationOrchestrator;
-    private ForwardingPathOperation forwardingPathOperation;
-    private NodeFilterOperation nodeFilterOperation;
+
+    private final ComponentInstanceOperation componentInstanceOperation;
+    private final ArtifactsBusinessLogic artifactBusinessLogic;
+    private final ComponentInstanceMergeDataBusinessLogic compInstMergeDataBL;
+    private final ComponentInstanceChangeOperationOrchestrator onChangeInstanceOperationOrchestrator;
+    private final ForwardingPathOperation forwardingPathOperation;
+    private final NodeFilterOperation nodeFilterOperation;
     @Autowired
     private CompositionBusinessLogic compositionBusinessLogic;
     @Autowired
@@ -1957,7 +1960,11 @@ public class ComponentInstanceBusinessLogic extends BaseBusinessLogic {
                 ComponentInstanceProperty componentInstanceProperty = validatePropertyExistsOnComponent(property, containerComponent,
                     foundResourceInstance);
                 String propertyParentUniqueId = property.getParentUniqueId();
-                Either<String, ResponseFormat> updatedPropertyValue = updatePropertyObjectValue(property, false, containerComponent.getModel());
+                if (property.isGetFunction()) {
+                    validateToscaGetFunction(property, containerComponent);
+                    property.setValue(property.getToscaGetFunction().generatePropertyValue());
+                }
+                Either<String, ResponseFormat> updatedPropertyValue = updatePropertyObjectValue(property, containerComponent.getModel());
                 if (updatedPropertyValue.isRight()) {
                     log.error("Failed to update property object value of property: {}",
                         property);
@@ -2106,7 +2113,7 @@ public class ComponentInstanceBusinessLogic extends BaseBusinessLogic {
             .get(foundResourceInstance.getUniqueId());
         Optional<ComponentInstanceProperty> instanceProperty = instanceProperties.stream().filter(p -> p.getName().equals(property.getName()))
             .findAny();
-        if (!instanceProperty.isPresent()) {
+        if (instanceProperty.isEmpty()) {
             throw new ByActionStatusComponentException(ActionStatus.PROPERTY_NOT_FOUND, property.getName());
         }
         return instanceProperty.get();
@@ -2268,7 +2275,7 @@ public class ComponentInstanceBusinessLogic extends BaseBusinessLogic {
         return false;
     }
 
-    private <T extends PropertyDefinition> Either<String, ResponseFormat> updatePropertyObjectValue(T property, boolean isInput, final String model) {
+    private <T extends PropertyDefinition> Either<String, ResponseFormat> updatePropertyObjectValue(T property, final String model) {
         final Map<String, DataTypeDefinition> allDataTypes = componentsUtils.getAllDataTypes(applicationDataTypeCache, model);
         String innerType = null;
         String propertyType = property.getType();
@@ -2276,13 +2283,13 @@ public class ComponentInstanceBusinessLogic extends BaseBusinessLogic {
         log.debug("The type of the property {} is {}", property.getUniqueId(), propertyType);
 
         if (type == ToscaPropertyType.LIST || type == ToscaPropertyType.MAP) {
-            SchemaDefinition def = property.getSchema();
-            if (def == null) {
+            SchemaDefinition schema = property.getSchema();
+            if (schema == null) {
                 log.debug("Schema doesn't exists for property of type {}", type);
                 return Either
                     .right(componentsUtils.getResponseFormat(componentsUtils.convertFromStorageResponse(StorageOperationStatus.INVALID_VALUE)));
             }
-            PropertyDataDefinition propDef = def.getProperty();
+            PropertyDataDefinition propDef = schema.getProperty();
             if (propDef == null) {
                 log.debug("Property in Schema Definition inside property of type {} doesn't exist", type);
                 return Either
@@ -2294,8 +2301,7 @@ public class ComponentInstanceBusinessLogic extends BaseBusinessLogic {
         // Specific Update Logic
         String newValue = property.getValue();
 
-        if (property.getToscaGetFunctionType() != null) {
-            validateToscaGetFunction(property);
+        if (property.hasGetFunction()) {
             return Either.left(newValue);
         }
 
@@ -2313,14 +2319,12 @@ public class ComponentInstanceBusinessLogic extends BaseBusinessLogic {
                 newValue = object.toString();
             }
         }
-        if (!isInput) {
-            ImmutablePair<String, Boolean> pair = propertyOperation
-                .validateAndUpdateRules(propertyType, ((ComponentInstanceProperty) property).getRules(), innerType, allDataTypes, true);
-            if (pair.getRight() != null && Boolean.FALSE.equals(pair.getRight())) {
-                BeEcompErrorManager.getInstance().logBeInvalidValueError("Add property value", pair.getLeft(), property.getName(), propertyType);
-                return Either.right(componentsUtils.getResponseFormat(componentsUtils.convertFromStorageResponse(
-                    DaoStatusConverter.convertJanusGraphStatusToStorageStatus(JanusGraphOperationStatus.ILLEGAL_ARGUMENT))));
-            }
+        ImmutablePair<String, Boolean> pair = propertyOperation
+            .validateAndUpdateRules(propertyType, ((ComponentInstanceProperty) property).getRules(), innerType, allDataTypes, true);
+        if (pair.getRight() != null && Boolean.FALSE.equals(pair.getRight())) {
+            BeEcompErrorManager.getInstance().logBeInvalidValueError("Add property value", pair.getLeft(), property.getName(), propertyType);
+            return Either.right(componentsUtils.getResponseFormat(componentsUtils.convertFromStorageResponse(
+                DaoStatusConverter.convertJanusGraphStatusToStorageStatus(JanusGraphOperationStatus.ILLEGAL_ARGUMENT))));
         }
         return Either.left(newValue);
     }
@@ -2368,29 +2372,96 @@ public class ComponentInstanceBusinessLogic extends BaseBusinessLogic {
         return Either.left(newValue);
     }
 
-    private <T extends PropertyDefinition> void validateToscaGetFunction(T property) {
-        if (property.getToscaGetFunctionType() == ToscaGetFunctionType.GET_INPUT) {
-            final List<GetInputValueDataDefinition> getInputValues = property.getGetInputValues();
-            if (CollectionUtils.isEmpty(getInputValues)) {
-                log.debug("No input information provided. Cannot set get_input.");
-                throw new ByActionStatusComponentException(ActionStatus.INVALID_CONTENT);
-            }
-            if (getInputValues.size() > 1) {
-                log.debug("More than one input provided. Cannot set get_input.");
-                throw new ByActionStatusComponentException(ActionStatus.INVALID_CONTENT);
-            }
-            final GetInputValueDataDefinition getInputValueDataDefinition = getInputValues.get(0);
+    private <T extends PropertyDefinition> void validateToscaGetFunction(T property, Component parentComponent) {
+        final ToscaGetFunctionDataDefinition toscaGetFunction = property.getToscaGetFunction();
+        if (toscaGetFunction.getFunctionType() == ToscaGetFunctionType.GET_INPUT) {
+            validateGetFunction(property, parentComponent.getInputs(), parentComponent.getModel());
+            return;
+        }
+        if (toscaGetFunction.getFunctionType() == ToscaGetFunctionType.GET_PROPERTY) {
+            validateGetFunction(property, parentComponent.getProperties(), parentComponent.getModel());
+            return;
+        }
 
-            if (!property.getType().equals(getInputValueDataDefinition.getInputType())) {
-                log.debug("Input type '{}' diverges from the property type '{}'. Cannot set get_input.",
-                    getInputValueDataDefinition.getInputType(), property.getType());
-                throw new ByActionStatusComponentException(ActionStatus.INVALID_CONTENT);
+        throw ToscaGetFunctionExceptionSupplier.functionNotSupported(toscaGetFunction.getFunctionType()).get();
+    }
+
+    private <T extends PropertyDefinition, U extends PropertyDefinition> void validateGetFunction(final T property,
+                                                                                                  final List<U> parentProperties,
+                                                                                                  final String model) {
+        final ToscaGetFunctionDataDefinition toscaGetFunction = property.getToscaGetFunction();
+        if (CollectionUtils.isEmpty(parentProperties)) {
+            throw ToscaGetFunctionExceptionSupplier
+                .propertyNotFoundOnTarget(toscaGetFunction.getPropertyName(), toscaGetFunction.getPropertySource(),
+                    toscaGetFunction.getFunctionType()
+                ).get();
+        }
+        validateGetPropertySource(toscaGetFunction.getFunctionType(), toscaGetFunction.getPropertySource());
+        final String getFunctionPropertyUniqueId = toscaGetFunction.getPropertyUniqueId();
+        T referredProperty = (T) parentProperties.stream()
+            .filter(property1 -> getFunctionPropertyUniqueId.equals(property1.getUniqueId()))
+            .findFirst()
+            .orElseThrow(ToscaGetFunctionExceptionSupplier
+                .propertyNotFoundOnTarget(toscaGetFunction.getPropertyName(), toscaGetFunction.getPropertySource()
+                    , toscaGetFunction.getFunctionType())
+            );
+        if (toscaGetFunction.isSubProperty()) {
+            referredProperty = findSubProperty(referredProperty, toscaGetFunction, model);
+        }
+
+        if (!property.getType().equals(referredProperty.getType())) {
+            throw ToscaGetFunctionExceptionSupplier
+                .propertyTypeDiverge(toscaGetFunction.getFunctionType(), referredProperty.getType(), property.getType()).get();
+        }
+        if (PropertyType.typeHasSchema(referredProperty.getType()) && !referredProperty.getSchemaType().equals(property.getSchemaType())) {
+            throw ToscaGetFunctionExceptionSupplier
+                .propertySchemaDiverge(toscaGetFunction.getFunctionType(), referredProperty.getSchemaType(), property.getSchemaType()).get();
+        }
+    }
+
+    private <T extends PropertyDefinition> T findSubProperty(final T referredProperty, final ToscaGetFunctionDataDefinition toscaGetFunction,
+                                                             final String model) {
+        final Map<String, DataTypeDefinition> dataTypeMap = loadDataTypes(model);
+        final List<String> propertyPathFromSource = toscaGetFunction.getPropertyPathFromSource();
+        DataTypeDefinition dataType = dataTypeMap.get(referredProperty.getType());
+        if (dataType == null) {
+            throw ToscaGetFunctionExceptionSupplier
+                .propertyDataTypeNotFound(propertyPathFromSource.get(0), referredProperty.getType(), toscaGetFunction.getFunctionType()).get();
+        }
+        T foundProperty = referredProperty;
+        for (int i = 1; i < propertyPathFromSource.size(); i++) {
+            final String currentPropertyName = propertyPathFromSource.get(i);
+            foundProperty = (T) dataType.getProperties().stream()
+                .filter(propertyDefinition -> currentPropertyName.equals(propertyDefinition.getName())).findFirst()
+                .orElseThrow(
+                    ToscaGetFunctionExceptionSupplier
+                        .propertyNotFoundOnTarget(propertyPathFromSource.subList(0, i), toscaGetFunction.getPropertySource(),
+                            toscaGetFunction.getFunctionType())
+                );
+            dataType = dataTypeMap.get(foundProperty.getType());
+            if (dataType == null) {
+                throw ToscaGetFunctionExceptionSupplier
+                    .propertyDataTypeNotFound(propertyPathFromSource.subList(0, i), foundProperty.getType(),
+                        toscaGetFunction.getFunctionType()).get();
             }
-            return;
         }
+        return foundProperty;
+    }
+
+    private Map<String, DataTypeDefinition> loadDataTypes(String model) {
+        final Either<Map<String, DataTypeDefinition>, JanusGraphOperationStatus> dataTypeEither =
+            applicationDataTypeCache.getAll(model);
+        if (dataTypeEither.isRight()) {
+            throw ToscaGetFunctionExceptionSupplier.couldNotLoadDataTypes(model).get();
+        }
+        return dataTypeEither.left().value();
+    }
 
-        throw new ByActionStatusComponentException(ActionStatus.NOT_SUPPORTED,
-            "Tosca function " + property.getToscaGetFunctionType().getToscaGetFunctionName());
+    private void validateGetPropertySource(final ToscaGetFunctionType functionType, final PropertySource propertySource) {
+        if (propertySource != PropertySource.SELF) {
+            throw ToscaGetFunctionExceptionSupplier
+                .targetSourceNotSupported(functionType, propertySource).get();
+        }
     }
 
     private ResponseFormat updateInputOnContainerComponent(ComponentInstanceInput input, String newValue, Component containerComponent,
@@ -3054,22 +3125,18 @@ public class ComponentInstanceBusinessLogic extends BaseBusinessLogic {
         return ComponentValidations.validateNameIsUniqueInComponent(oldComponentInstance.getName(), newInstanceName, containerComponent);
     }
 
-    private Either<ComponentInstance, StorageOperationStatus> getResourceInstanceById(Component containerComponent, String instanceId) {
-        Either<ComponentInstance, StorageOperationStatus> result = Either.right(StorageOperationStatus.NOT_FOUND);
-        List<ComponentInstance> instances = containerComponent.getComponentInstances();
-        Optional<ComponentInstance> foundInstance = Optional.empty();
-        if (!CollectionUtils.isEmpty(instances)) {
-            if (result.isRight()) {
-                foundInstance = instances.stream().filter(i -> i.getUniqueId().equals(instanceId)).findFirst();
-                if (!foundInstance.isPresent()) {
-                    result = Either.right(StorageOperationStatus.NOT_FOUND);
-                }
-            }
-            if (result.isRight() && foundInstance.isPresent()) {
-                result = Either.left(foundInstance.get());
-            }
+    private Either<ComponentInstance, StorageOperationStatus> getResourceInstanceById(final Component containerComponent, final String instanceId) {
+        final List<ComponentInstance> instances = containerComponent.getComponentInstances();
+        if (CollectionUtils.isEmpty(instances)) {
+            return Either.right(StorageOperationStatus.NOT_FOUND);
         }
-        return result;
+
+        final Optional<ComponentInstance> foundInstance = instances.stream().filter(i -> i.getUniqueId().equals(instanceId)).findFirst();
+        if (foundInstance.isEmpty()) {
+            return Either.right(StorageOperationStatus.NOT_FOUND);
+        }
+
+        return Either.left(foundInstance.get());
     }
 
     private ComponentInstance buildComponentInstance(ComponentInstance resourceInstanceForUpdate, ComponentInstance origInstanceForUpdate) {
@@ -3726,4 +3793,13 @@ public class ComponentInstanceBusinessLogic extends BaseBusinessLogic {
         final User user = userValidations.validateUserExists(userId);
         userValidations.validateUserRole(user, Arrays.asList(Role.DESIGNER, Role.ADMIN));
     }
+
+    public void setCompositionBusinessLogic(CompositionBusinessLogic compositionBusinessLogic) {
+        this.compositionBusinessLogic = compositionBusinessLogic;
+    }
+
+    public void setContainerInstanceTypesData(ContainerInstanceTypesData containerInstanceTypesData) {
+        this.containerInstanceTypesData = containerInstanceTypesData;
+    }
+
 }
diff --git a/catalog-be/src/main/java/org/openecomp/sdc/be/components/impl/exceptions/ToscaGetFunctionExceptionSupplier.java b/catalog-be/src/main/java/org/openecomp/sdc/be/components/impl/exceptions/ToscaGetFunctionExceptionSupplier.java
new file mode 100644
index 0000000000..d54cb79ba5
--- /dev/null
+++ b/catalog-be/src/main/java/org/openecomp/sdc/be/components/impl/exceptions/ToscaGetFunctionExceptionSupplier.java
@@ -0,0 +1,94 @@
+/*
+ * -
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ *  ================================================================================
+ *  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.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.be.components.impl.exceptions;
+
+import java.util.List;
+import java.util.function.Supplier;
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import org.openecomp.sdc.be.dao.api.ActionStatus;
+import org.openecomp.sdc.be.datatypes.enums.PropertySource;
+import org.openecomp.sdc.be.datatypes.tosca.ToscaGetFunctionType;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public class ToscaGetFunctionExceptionSupplier {
+
+    public static Supplier<ByActionStatusComponentException> targetSourceNotSupported(final ToscaGetFunctionType toscaGetFunctionType,
+                                                                                      final PropertySource propertySource) {
+        final String errorMsg = String.format("%s on %s", toscaGetFunctionType.getFunctionName(), propertySource.getName());
+        return () -> new ByActionStatusComponentException(ActionStatus.NOT_SUPPORTED, errorMsg);
+    }
+
+    public static Supplier<ByActionStatusComponentException> propertyNotFoundOnTarget(final String propertyName,
+                                                                                      final PropertySource propertySource,
+                                                                                      final ToscaGetFunctionType functionType) {
+        return propertyNotFoundOnTarget(List.of(propertyName), propertySource, functionType);
+    }
+
+    public static Supplier<ByActionStatusComponentException> propertyNotFoundOnTarget(final List<String> propertyPathFromSource,
+                                                                                      final PropertySource propertySource,
+                                                                                      final ToscaGetFunctionType functionType) {
+        return () -> new ByActionStatusComponentException(ActionStatus.TOSCA_GET_FUNCTION_PROPERTY_NOT_FOUND, functionType.getPropertyType(),
+            String.join("->", propertyPathFromSource), propertySource.getName());
+    }
+
+    public static Supplier<ByActionStatusComponentException> propertyDataTypeNotFound(final String propertyName,
+                                                                                      final String dataType,
+                                                                                      final ToscaGetFunctionType functionType) {
+        return propertyDataTypeNotFound(List.of(propertyName), dataType, functionType);
+    }
+
+    public static Supplier<ByActionStatusComponentException> propertyDataTypeNotFound(final List<String> propertyPathFromSource,
+                                                                                      final String dataType,
+                                                                                      final ToscaGetFunctionType functionType) {
+        return () -> new ByActionStatusComponentException(
+            ActionStatus.TOSCA_GET_FUNCTION_PROPERTY_DATA_TYPE_NOT_FOUND,
+            functionType.getPropertyType(), String.join("->", propertyPathFromSource), dataType
+        );
+    }
+
+    public static Supplier<ByActionStatusComponentException> couldNotLoadDataTypes(final String model) {
+        return () -> new ByActionStatusComponentException(ActionStatus.DATA_TYPES_NOT_LOADED, model);
+    }
+
+    public static Supplier<ByActionStatusComponentException> functionNotSupported(final ToscaGetFunctionType functionType) {
+        return () -> new ByActionStatusComponentException(ActionStatus.NOT_SUPPORTED, "Tosca function " + functionType.getFunctionName());
+    }
+
+    public static Supplier<ByActionStatusComponentException> propertyTypeDiverge(final ToscaGetFunctionType functionType,
+                                                                                 final String referredPropertyType,
+                                                                                 final String propertyType) {
+        return () -> new ByActionStatusComponentException(
+            ActionStatus.TOSCA_GET_FUNCTION_TYPE_DIVERGE,
+            functionType.getFunctionName(), referredPropertyType, propertyType
+        );
+    }
+
+    public static Supplier<ByActionStatusComponentException> propertySchemaDiverge(final ToscaGetFunctionType functionType,
+                                                                                   final String referredPropertySchemaType,
+                                                                                   final String propertySchemaType) {
+        return () -> new ByActionStatusComponentException(
+            ActionStatus.TOSCA_GET_FUNCTION_SCHEMA_DIVERGE,
+            functionType.getFunctionName(), referredPropertySchemaType, propertySchemaType
+        );
+    }
+}