Added input parameter loading handling from SDNC

Change-Id: I9076d793468db659358c7ef0e7cc859886d7fe17
Issue-ID: SO-1624
Signed-off-by: waqas.ikram <waqas.ikram@est.tech>

16 files changed, 1087 insertions, 2 deletions

diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/Constants.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/Constants.java
index d03173d0ac..667ac133af 100644
--- a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/Constants.java
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/Constants.java
@@ -27,6 +27,8 @@ public class Constants {
 
     public static final String CREATE_VNF_REQUEST_PARAM_NAME = "createVnfRequest";
     public static final String CREATE_VNF_RESPONSE_PARAM_NAME = "createVnfResponse";
+    
+    public static final String INPUT_PARAMETER = "inputParameter";
 
     public static final String DOT = ".";
     public static final String UNDERSCORE = "_";
@@ -34,6 +36,9 @@ public class Constants {
 
     public static final String VNFM_ADAPTER_DEFAULT_URL = "http://so-vnfm-adapter.onap:9092/so/vnfm-adapter/v1/";
     public static final String VNFM_ADAPTER_DEFAULT_AUTH = "Basic dm5mbTpwYXNzd29yZDEk";
+    
+    public static final String FORWARD_SLASH = "/";
+    public static final String PRELOAD_VNFS_URL = "/restconf/config/VNF-API:preload-vnfs/vnf-preload-list/";
 
 
     private Constants() {}
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/InputParameterRetrieverTask.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/InputParameterRetrieverTask.java
new file mode 100644
index 0000000000..ebb9d521c3
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/InputParameterRetrieverTask.java
@@ -0,0 +1,74 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks;
+
+import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.INPUT_PARAMETER;
+import static org.onap.so.bpmn.servicedecomposition.entities.ResourceKey.GENERIC_VNF_ID;
+
+import org.onap.so.bpmn.common.BuildingBlockExecution;
+import org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils.InputParameter;
+import org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils.InputParametersProvider;
+import org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils.NullInputParameter;
+import org.onap.so.bpmn.servicedecomposition.bbobjects.GenericVnf;
+import org.onap.so.bpmn.servicedecomposition.tasks.ExtractPojosForBB;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+/**
+ * This class retrieve input parameters
+ * 
+ * @author waqas.ikram@est.tech
+ */
+@Component
+public class InputParameterRetrieverTask {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(InputParameterRetrieverTask.class);
+
+    private final InputParametersProvider inputParametersProvider;
+
+    private final ExtractPojosForBB extractPojosForBB;
+
+    @Autowired
+    public InputParameterRetrieverTask(final InputParametersProvider inputParametersProvider,
+            final ExtractPojosForBB extractPojosForBB) {
+        this.inputParametersProvider = inputParametersProvider;
+        this.extractPojosForBB = extractPojosForBB;
+    }
+
+    public void getInputParameters(final BuildingBlockExecution execution) {
+        try {
+            LOGGER.debug("Executing getInputParameters  ...");
+
+            final GenericVnf vnf = extractPojosForBB.extractByKey(execution, GENERIC_VNF_ID);
+            final InputParameter inputParameter = inputParametersProvider.getInputParameter(vnf);
+
+            LOGGER.debug("inputParameter: {}", inputParameter);
+            execution.setVariable(INPUT_PARAMETER, inputParameter);
+
+            LOGGER.debug("Finished executing getInputParameters ...");
+        } catch (final Exception exception) {
+            LOGGER.error("Unable to invoke create and instantiation request", exception);
+            execution.setVariable(INPUT_PARAMETER, NullInputParameter.NULL_INSTANCE);
+        }
+    }
+
+}
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/VnfmAdapterCreateVnfTask.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/VnfmAdapterCreateVnfTask.java
index 23ddb6f3f7..4e15474e46 100644
--- a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/VnfmAdapterCreateVnfTask.java
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/VnfmAdapterCreateVnfTask.java
@@ -23,11 +23,14 @@ package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks;
 import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.CREATE_VNF_REQUEST_PARAM_NAME;
 import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.CREATE_VNF_RESPONSE_PARAM_NAME;
 import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.DOT;
+import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.INPUT_PARAMETER;
 import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.SPACE;
 import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.UNDERSCORE;
 import static org.onap.so.bpmn.servicedecomposition.entities.ResourceKey.GENERIC_VNF_ID;
 
 import org.onap.so.bpmn.common.BuildingBlockExecution;
+import org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils.InputParameter;
+import org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils.NullInputParameter;
 import org.onap.so.bpmn.servicedecomposition.bbobjects.CloudRegion;
 import org.onap.so.bpmn.servicedecomposition.bbobjects.GenericVnf;
 import org.onap.so.bpmn.servicedecomposition.entities.GeneralBuildingBlock;
@@ -83,10 +86,14 @@ public class VnfmAdapterCreateVnfTask {
             final GenericVnf vnf = extractPojosForBB.extractByKey(execution, GENERIC_VNF_ID);
             final ModelInfoGenericVnf modelInfoGenericVnf = vnf.getModelInfoGenericVnf();
 
+            final InputParameter inputParameter = getInputParameter(execution);
+
             final CreateVnfRequest createVnfRequest = new CreateVnfRequest();
 
             createVnfRequest.setName(getName(vnf.getVnfName(), modelInfoGenericVnf.getModelInstanceName()));
             createVnfRequest.setTenant(getTenant(cloudRegion));
+            createVnfRequest.setAdditionalParams(inputParameter.getAdditionalParams());
+            createVnfRequest.setExternalVirtualLinks(inputParameter.getExtVirtualLinks());
 
             LOGGER.info("CreateVnfRequest : {}", createVnfRequest);
 
@@ -99,6 +106,11 @@ public class VnfmAdapterCreateVnfTask {
         }
     }
 
+    private InputParameter getInputParameter(final BuildingBlockExecution execution) {
+        final InputParameter inputParameter = execution.getVariable(INPUT_PARAMETER);
+        return inputParameter != null ? inputParameter : NullInputParameter.NULL_INSTANCE;
+    }
+
     /**
      * Invoke VNFM adapter to create and instantiate VNF
      * 
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/InputParameter.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/InputParameter.java
new file mode 100644
index 0000000000..5ade3240a0
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/InputParameter.java
@@ -0,0 +1,81 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.onap.vnfmadapter.v1.model.ExternalVirtualLink;
+
+/**
+ * Wrapper class for instance parameters which are based on SOL003
+ * 
+ * @author waqas.ikram@est.tech
+ */
+public class InputParameter implements Serializable {
+
+    private static final long serialVersionUID = 42034634585595304L;
+
+    private Map<String, String> additionalParams = new HashMap<>();
+
+    private List<ExternalVirtualLink> extVirtualLinks = new ArrayList<>();
+
+    public InputParameter(final Map<String, String> additionalParams, final List<ExternalVirtualLink> extVirtualLinks) {
+        this.additionalParams = additionalParams;
+        this.extVirtualLinks = extVirtualLinks;
+    }
+
+    /**
+     * @return the additionalParams
+     */
+    public Map<String, String> getAdditionalParams() {
+        return additionalParams;
+    }
+
+    /**
+     * @return the extVirtualLinks
+     */
+    public List<ExternalVirtualLink> getExtVirtualLinks() {
+        return extVirtualLinks;
+    }
+
+    /**
+     * @param additionalParams the additionalParams to set
+     */
+    public void setAdditionalParams(final Map<String, String> additionalParams) {
+        this.additionalParams = additionalParams;
+    }
+
+    /**
+     * @param extVirtualLinks the extVirtualLinks to set
+     */
+    public void setExtVirtualLinks(final List<ExternalVirtualLink> extVirtualLinks) {
+        this.extVirtualLinks = extVirtualLinks;
+    }
+
+    @Override
+    public String toString() {
+        return "InputParameter [additionalParams=" + additionalParams + ", extVirtualLinks=" + extVirtualLinks + "]";
+    }
+
+}
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/InputParametersProvider.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/InputParametersProvider.java
new file mode 100644
index 0000000000..55203fb7cc
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/InputParametersProvider.java
@@ -0,0 +1,31 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils;
+
+import org.onap.so.bpmn.servicedecomposition.bbobjects.GenericVnf;
+
+/**
+ * @author waqas.ikram@est.tech
+ */
+public interface InputParametersProvider {
+
+    InputParameter getInputParameter(final GenericVnf genericVnf);
+
+}
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/InputParametersProviderImpl.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/InputParametersProviderImpl.java
new file mode 100644
index 0000000000..6027e78d8b
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/InputParametersProviderImpl.java
@@ -0,0 +1,161 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils;
+
+import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.FORWARD_SLASH;
+import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.PRELOAD_VNFS_URL;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+import org.onap.so.bpmn.servicedecomposition.bbobjects.GenericVnf;
+import org.onap.so.bpmn.servicedecomposition.modelinfo.ModelInfoGenericVnf;
+import org.onap.so.client.sdnc.SDNCClient;
+import org.onap.vnfmadapter.v1.model.ExternalVirtualLink;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.jayway.jsonpath.JsonPath;
+
+import net.minidev.json.JSONArray;
+
+/**
+ * This class retrieve pre-load data from SDNC using <br/>
+ * <b>GET</b> /config/VNF-API:preload-vnfs/vnf-preload-list/{vnf-name}/{vnf-type}
+ * 
+ * @author waqas.ikram@est.tech
+ */
+@Service
+public class InputParametersProviderImpl implements InputParametersProvider {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(InputParametersProviderImpl.class);
+
+    private static final String EXT_VIRTUAL_LINKS = "extVirtualLinks";
+    private static final String ADDITIONAL_PARAMS = "additionalParams";
+    private static final String VNF_PARAMETERS_PATH = "$..vnf-parameters";
+
+    private final SDNCClient sdncClient;
+
+    @Autowired
+    public InputParametersProviderImpl(final SDNCClient sdncClient) {
+        this.sdncClient = sdncClient;
+    }
+
+    @Override
+    public InputParameter getInputParameter(final GenericVnf genericVnf) {
+        final String vnfName = genericVnf.getVnfName();
+        final String vnfType = getVnfType(genericVnf);
+        final String url = getPreloadVnfsUrl(vnfName, vnfType);
+
+        try {
+            LOGGER.debug("Will query sdnc for input parameters using url: {}", url);
+            final String jsonResponse = sdncClient.get(url);
+
+            final JSONArray vnfParametersArray = JsonPath.read(jsonResponse, VNF_PARAMETERS_PATH);
+            if (vnfParametersArray != null) {
+                for (int index = 0; index < vnfParametersArray.size(); index++) {
+                    final Object vnfParametersObject = vnfParametersArray.get(index);
+                    if (vnfParametersObject instanceof JSONArray) {
+                        final JSONArray vnfParameters = (JSONArray) vnfParametersObject;
+                        final Map<String, String> vnfParametersMap = getVnfParameterMap(vnfParameters);
+                        return new InputParameter(getAdditionalParameters(vnfParametersMap),
+                                getExtVirtualLinks(vnfParametersMap));
+                    }
+                }
+            }
+        } catch (final Exception exception) {
+            LOGGER.error("Unable to retrieve/parse input parameters using URL: {} ", url, exception);
+        }
+        LOGGER.warn("No input parameters found ...");
+        return NullInputParameter.NULL_INSTANCE;
+
+    }
+
+    private List<ExternalVirtualLink> getExtVirtualLinks(final Map<String, String> vnfParametersMap)
+            throws JsonParseException, IOException {
+        try {
+            final String extVirtualLinksString = vnfParametersMap.get(EXT_VIRTUAL_LINKS);
+
+            if (extVirtualLinksString != null && !extVirtualLinksString.isEmpty()) {
+                final ObjectMapper mapper = new ObjectMapper();
+                final TypeReference<List<ExternalVirtualLink>> extVirtualLinksStringTypeRef =
+                        new TypeReference<List<ExternalVirtualLink>>() {};
+
+                return mapper.readValue(extVirtualLinksString, extVirtualLinksStringTypeRef);
+            }
+        } catch (final Exception exception) {
+            LOGGER.error("Unable to parse {} ", EXT_VIRTUAL_LINKS, exception);
+        }
+        return Collections.emptyList();
+    }
+
+    private Map<String, String> getAdditionalParameters(final Map<String, String> vnfParametersMap)
+            throws JsonParseException, IOException {
+        try {
+            final String additionalParamsString = vnfParametersMap.get(ADDITIONAL_PARAMS);
+            if (additionalParamsString != null && !additionalParamsString.isEmpty()) {
+                final ObjectMapper mapper = new ObjectMapper();
+                final TypeReference<Map<String, String>> typeRef = new TypeReference<Map<String, String>>() {};
+                return mapper.readValue(additionalParamsString, typeRef);
+            }
+        } catch (final Exception exception) {
+            LOGGER.error("Unable to parse {} ", ADDITIONAL_PARAMS, exception);
+        }
+        return Collections.emptyMap();
+    }
+
+    private Map<String, String> getVnfParameterMap(final JSONArray array) {
+        try {
+            if (array != null) {
+                final ObjectMapper mapper = new ObjectMapper();
+                final VnfParameter[] readValue = mapper.readValue(array.toJSONString(), VnfParameter[].class);
+                LOGGER.debug("Vnf parameters: {}", Arrays.asList(readValue));
+                return Arrays.asList(readValue).stream()
+                        .filter(vnfParam -> vnfParam.getName() != null && vnfParam.getValue() != null)
+                        .collect(Collectors.toMap(VnfParameter::getName, VnfParameter::getValue));
+            }
+        } catch (final IOException exception) {
+            LOGGER.error("Unable to parse vnf parameters : {}", array, exception);
+        }
+        return Collections.emptyMap();
+    }
+
+    private String getPreloadVnfsUrl(final String vnfName, final String vnfType) {
+        return PRELOAD_VNFS_URL + vnfName + FORWARD_SLASH + vnfType;
+    }
+
+    private String getVnfType(final GenericVnf genericVnf) {
+        final ModelInfoGenericVnf modelInfoGenericVnf = genericVnf.getModelInfoGenericVnf();
+        if (modelInfoGenericVnf != null && modelInfoGenericVnf.getModelName() != null) {
+            return modelInfoGenericVnf.getModelName();
+        }
+        return genericVnf.getVnfType();
+    }
+
+}
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/NullInputParameter.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/NullInputParameter.java
new file mode 100644
index 0000000000..fb877ac55d
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/NullInputParameter.java
@@ -0,0 +1,37 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils;
+
+import java.util.Collections;
+
+/**
+ * @author waqas.ikram@est.tech
+ */
+public class NullInputParameter extends InputParameter {
+
+    private static final long serialVersionUID = -7261286746726871696L;
+
+    public static final NullInputParameter NULL_INSTANCE = new NullInputParameter();
+
+    private NullInputParameter() {
+        super(Collections.emptyMap(), Collections.emptyList());
+    }
+
+}
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/VnfParameter.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/VnfParameter.java
new file mode 100644
index 0000000000..11e93e733d
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/VnfParameter.java
@@ -0,0 +1,91 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils;
+
+import java.util.Objects;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+/**
+ * This is used to deserialize vnf-parameters from vnf-preload-list/{vnf-name}/{vnf-type} response
+ * 
+ * @author waqas.ikram@est.tech
+ */
+public class VnfParameter {
+
+    @JsonProperty("vnf-parameter-name")
+    private String name;
+
+    @JsonProperty("vnf-parameter-value")
+    private String value;
+
+    /**
+     * @return the name
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * @param name the name to set
+     */
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+    /**
+     * @return the value
+     */
+    public String getValue() {
+        return value;
+    }
+
+    /**
+     * @param value the value to set
+     */
+    public void setValue(final String value) {
+        this.value = value;
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((name == null) ? 0 : name.hashCode());
+        result = prime * result + ((value == null) ? 0 : value.hashCode());
+        return Objects.hash(name, value);
+    }
+
+    @Override
+    public boolean equals(final Object obj) {
+        if (obj instanceof VnfParameter) {
+            VnfParameter other = (VnfParameter) obj;
+            return Objects.equals(name, other.name) && Objects.equals(value, other.value);
+        }
+
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return "VnfParameter [name=" + name + ", value=" + value + "]";
+    }
+
+}
diff --git a/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/InputParameterRetrieverTaskTest.java b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/InputParameterRetrieverTaskTest.java
new file mode 100644
index 0000000000..803b58b4b8
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/InputParameterRetrieverTaskTest.java
@@ -0,0 +1,125 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.when;
+
+import java.io.Serializable;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.onap.so.bpmn.BaseTaskTest;
+import org.onap.so.bpmn.common.BuildingBlockExecution;
+import org.onap.so.bpmn.common.exceptions.RequiredExecutionVariableExeception;
+import org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils.InputParameter;
+import org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils.InputParametersProvider;
+import org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils.NullInputParameter;
+import org.onap.so.bpmn.servicedecomposition.bbobjects.GenericVnf;
+import org.onap.so.bpmn.servicedecomposition.entities.GeneralBuildingBlock;
+import org.onap.so.bpmn.servicedecomposition.entities.ResourceKey;
+import org.onap.so.client.exception.BBObjectNotFoundException;
+
+/**
+ * @author waqas.ikram@est.tech
+ */
+public class InputParameterRetrieverTaskTest extends BaseTaskTest {
+
+    private final BuildingBlockExecution stubbedxecution = new StubbedBuildingBlockExecution();
+
+    @Mock
+    private InputParametersProvider inputParametersProvider;
+
+    @Test
+    public void testGGetInputParameters_inputParameterStoredInExecutionContext() throws BBObjectNotFoundException {
+        final InputParameterRetrieverTask objUnderTest =
+                new InputParameterRetrieverTask(inputParametersProvider, extractPojosForBB);
+
+        final InputParameter inputParameter = new InputParameter(Collections.emptyMap(), Collections.emptyList());
+        when(inputParametersProvider.getInputParameter(Mockito.any(GenericVnf.class))).thenReturn(inputParameter);
+        when(extractPojosForBB.extractByKey(any(), eq(ResourceKey.GENERIC_VNF_ID))).thenReturn(new GenericVnf());
+        objUnderTest.getInputParameters(stubbedxecution);
+
+        final Object actual = stubbedxecution.getVariable(Constants.INPUT_PARAMETER);
+        assertNotNull(actual);
+        assertTrue(actual instanceof InputParameter);
+    }
+
+    @Test
+    public void testGGetInputParameters_ThrowExecption_NullInputParameterStoredInExecutionContext()
+            throws BBObjectNotFoundException {
+        final InputParameterRetrieverTask objUnderTest =
+                new InputParameterRetrieverTask(inputParametersProvider, extractPojosForBB);
+
+        when(inputParametersProvider.getInputParameter(Mockito.any(GenericVnf.class)))
+                .thenThrow(RuntimeException.class);
+        when(extractPojosForBB.extractByKey(any(), eq(ResourceKey.GENERIC_VNF_ID))).thenReturn(new GenericVnf());
+        objUnderTest.getInputParameters(stubbedxecution);
+
+        final Object actual = stubbedxecution.getVariable(Constants.INPUT_PARAMETER);
+        assertNotNull(actual);
+        assertTrue(actual instanceof NullInputParameter);
+    }
+
+
+    private class StubbedBuildingBlockExecution implements BuildingBlockExecution {
+
+        private final Map<String, Serializable> execution = new HashMap<>();
+
+        @Override
+        public GeneralBuildingBlock getGeneralBuildingBlock() {
+            return null;
+        }
+
+        @SuppressWarnings("unchecked")
+        @Override
+        public <T> T getVariable(final String key) {
+            return (T) execution.get(key);
+        }
+
+        @Override
+        public <T> T getRequiredVariable(final String key) throws RequiredExecutionVariableExeception {
+            return null;
+        }
+
+        @Override
+        public void setVariable(final String key, final Serializable value) {
+            execution.put(key, value);
+        }
+
+        @Override
+        public Map<ResourceKey, String> getLookupMap() {
+            return Collections.emptyMap();
+        }
+
+        @Override
+        public String getFlowToBeCalled() {
+            return null;
+        }
+
+    }
+}
diff --git a/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/VnfmAdapterCreateVnfTaskTest.java b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/VnfmAdapterCreateVnfTaskTest.java
index ddfc08e08f..20abe6ece1 100644
--- a/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/VnfmAdapterCreateVnfTaskTest.java
+++ b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/VnfmAdapterCreateVnfTaskTest.java
@@ -29,6 +29,7 @@ import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.CREATE_VNF_REQUEST_PARAM_NAME;
 import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.CREATE_VNF_RESPONSE_PARAM_NAME;
+import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.INPUT_PARAMETER;
 
 import java.io.Serializable;
 import java.util.Collections;
@@ -41,8 +42,7 @@ import org.mockito.Mock;
 import org.onap.so.bpmn.BaseTaskTest;
 import org.onap.so.bpmn.common.BuildingBlockExecution;
 import org.onap.so.bpmn.common.exceptions.RequiredExecutionVariableExeception;
-import org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.VnfmAdapterCreateVnfTask;
-import org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.VnfmAdapterServiceProvider;
+import org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils.InputParameter;
 import org.onap.so.bpmn.servicedecomposition.bbobjects.CloudRegion;
 import org.onap.so.bpmn.servicedecomposition.bbobjects.GenericVnf;
 import org.onap.so.bpmn.servicedecomposition.entities.GeneralBuildingBlock;
@@ -83,6 +83,8 @@ public class VnfmAdapterCreateVnfTaskTest extends BaseTaskTest {
     public void testBuildCreateVnfRequest_withValidValues_storesRequestInExecution() throws Exception {
 
         final VnfmAdapterCreateVnfTask objUnderTest = getEtsiVnfInstantiateTask();
+        stubbedxecution.setVariable(INPUT_PARAMETER,
+                new InputParameter(Collections.emptyMap(), Collections.emptyList()));
 
         when(extractPojosForBB.extractByKey(any(), eq(ResourceKey.GENERIC_VNF_ID))).thenReturn(getGenericVnf());
         objUnderTest.buildCreateVnfRequest(stubbedxecution);
diff --git a/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/InputParametersProviderImplTest.java b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/InputParametersProviderImplTest.java
new file mode 100644
index 0000000000..d21942d08f
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/InputParametersProviderImplTest.java
@@ -0,0 +1,181 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.when;
+import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.FORWARD_SLASH;
+import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.PRELOAD_VNFS_URL;
+import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.TestConstants.DUMMY_GENERIC_VND_ID;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.List;
+import java.util.Map;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.MockitoJUnitRunner;
+import org.onap.so.bpmn.servicedecomposition.bbobjects.GenericVnf;
+import org.onap.so.bpmn.servicedecomposition.modelinfo.ModelInfoGenericVnf;
+import org.onap.so.client.exception.BadResponseException;
+import org.onap.so.client.exception.MapperException;
+import org.onap.so.client.sdnc.SDNCClient;
+import org.onap.vnfmadapter.v1.model.ExternalVirtualLink;
+
+/**
+ * @author waqas.ikram@est.tech
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class InputParametersProviderImplTest {
+
+    private static final String BASE_DIR = "src/test/resources/__files/";
+
+    private static final Path PRE_LOAD_SDNC_RESPONSE = Paths.get(BASE_DIR + "SDNCClientPrelaodDataResponse.json");
+
+    private static final Path INVALID_PRE_LOAD_SDNC_RESPONSE =
+            Paths.get(BASE_DIR + "SDNCClientPrelaodDataResponseWithInvalidData.json");
+
+    private static final Path INVALID_ADDITIONAL_AND_EXT_VM_DATA =
+            Paths.get(BASE_DIR + "SDNCClientPrelaodDataResponseWithInvalidAdditionalAndExtVmData.json");
+
+
+    private static final Path INVALID_VNF_PARAMS =
+            Paths.get(BASE_DIR + "SDNCClientPrelaodDataResponseWithInvalidVnfParamsTag.json");
+
+
+    private static final String MODEL_NAME = "MODEL_NAME";
+
+    private static final String GENERIC_VNF_NAME = "GENERIC_VNF_NAME";
+
+    private static final String URL = PRELOAD_VNFS_URL + GENERIC_VNF_NAME + FORWARD_SLASH + MODEL_NAME;
+
+    private static final String GENERIC_VNF_TYPE = MODEL_NAME;
+
+    @Mock
+    private SDNCClient mockedSdncClient;
+
+    @Test
+    public void testGetInputParameter_ValidResponseFromSdnc_NotEmptyInputParameter() throws Exception {
+        assertValues(getGenericVnf());
+    }
+
+    @Test
+    public void testGetInputParameter_ValidResponseFromSdncAndVnfType_NotEmptyInputParameter() throws Exception {
+        assertValues(getGenericVnf(GENERIC_VNF_TYPE));
+    }
+
+    @Test
+    public void testGetInputParameter_ValidResponseFromSdncInvalidData_EmptyInputParameter() throws Exception {
+        when(mockedSdncClient.get(Mockito.eq(URL))).thenReturn(getReponseAsString(INVALID_PRE_LOAD_SDNC_RESPONSE));
+        final InputParametersProvider objUnderTest = new InputParametersProviderImpl(mockedSdncClient);
+        final InputParameter actual = objUnderTest.getInputParameter(getGenericVnf());
+        assertNotNull(actual);
+        assertTrue(actual.getAdditionalParams().isEmpty());
+        assertTrue(actual.getExtVirtualLinks().isEmpty());
+    }
+
+    @Test
+    public void testGetInputParameter_ExceptionThrownFromSdnc_EmptyInputParameter() throws Exception {
+        when(mockedSdncClient.get(Mockito.eq(URL))).thenThrow(RuntimeException.class);
+        final InputParametersProvider objUnderTest = new InputParametersProviderImpl(mockedSdncClient);
+        final InputParameter actual = objUnderTest.getInputParameter(getGenericVnf());
+        assertNotNull(actual);
+        assertTrue(actual instanceof NullInputParameter);
+        assertTrue(actual.getAdditionalParams().isEmpty());
+        assertTrue(actual.getExtVirtualLinks().isEmpty());
+    }
+
+    @Test
+    public void testGetInputParameter_InvalidResponseData_EmptyInputParameter() throws Exception {
+        when(mockedSdncClient.get(Mockito.eq(URL))).thenReturn(getReponseAsString(INVALID_ADDITIONAL_AND_EXT_VM_DATA));
+        final InputParametersProvider objUnderTest = new InputParametersProviderImpl(mockedSdncClient);
+        final InputParameter actual = objUnderTest.getInputParameter(getGenericVnf());
+        assertNotNull(actual);
+        assertTrue(actual.getAdditionalParams().isEmpty());
+        assertTrue(actual.getExtVirtualLinks().isEmpty());
+    }
+
+    @Test
+    public void testGetInputParameter_EmptyResponseData_EmptyInputParameter() throws Exception {
+        when(mockedSdncClient.get(Mockito.eq(URL))).thenReturn("");
+        final InputParametersProvider objUnderTest = new InputParametersProviderImpl(mockedSdncClient);
+        final InputParameter actual = objUnderTest.getInputParameter(getGenericVnf());
+        assertNotNull(actual);
+        assertTrue(actual instanceof NullInputParameter);
+        assertTrue(actual.getAdditionalParams().isEmpty());
+        assertTrue(actual.getExtVirtualLinks().isEmpty());
+    }
+
+    @Test
+    public void testGetInputParameter_InvalidVnfParamsResponseData_EmptyInputParameter() throws Exception {
+        when(mockedSdncClient.get(Mockito.eq(URL))).thenReturn(getReponseAsString(INVALID_VNF_PARAMS));
+        final InputParametersProvider objUnderTest = new InputParametersProviderImpl(mockedSdncClient);
+        final InputParameter actual = objUnderTest.getInputParameter(getGenericVnf());
+        assertNotNull(actual);
+        assertTrue(actual.getAdditionalParams().isEmpty());
+        assertTrue(actual.getExtVirtualLinks().isEmpty());
+    }
+
+    private void assertValues(final GenericVnf genericVnf) throws MapperException, BadResponseException, IOException {
+        when(mockedSdncClient.get(Mockito.eq(URL))).thenReturn(getReponseAsString(PRE_LOAD_SDNC_RESPONSE));
+        final InputParametersProvider objUnderTest = new InputParametersProviderImpl(mockedSdncClient);
+        final InputParameter actual = objUnderTest.getInputParameter(genericVnf);
+        assertNotNull(actual);
+
+        final Map<String, String> actualAdditionalParams = actual.getAdditionalParams();
+        assertEquals(3, actualAdditionalParams.size());
+
+        final String actualInstanceType = actualAdditionalParams.get("instance_type");
+        assertEquals("m1.small", actualInstanceType);
+
+        final List<ExternalVirtualLink> actualExtVirtualLinks = actual.getExtVirtualLinks();
+        assertEquals(1, actualExtVirtualLinks.size());
+
+        final ExternalVirtualLink actualExternalVirtualLink = actualExtVirtualLinks.get(0);
+        assertEquals("ac1ed33d-8dc1-4800-8ce8-309b99c38eec", actualExternalVirtualLink.getId());
+    }
+
+    private String getReponseAsString(final Path filePath) throws IOException {
+        return new String(Files.readAllBytes(filePath));
+    }
+
+    private GenericVnf getGenericVnf() {
+        final GenericVnf genericVnf = getGenericVnf(GENERIC_VNF_TYPE);
+        final ModelInfoGenericVnf modelInfoGenericVnf = new ModelInfoGenericVnf();
+        modelInfoGenericVnf.setModelName(MODEL_NAME);
+        genericVnf.setModelInfoGenericVnf(modelInfoGenericVnf);
+        return genericVnf;
+    }
+
+    private GenericVnf getGenericVnf(final String vnfType) {
+        final GenericVnf genericVnf = new GenericVnf();
+        genericVnf.setVnfId(DUMMY_GENERIC_VND_ID);
+        genericVnf.setVnfName(GENERIC_VNF_NAME);
+        genericVnf.setVnfType(vnfType);
+        return genericVnf;
+    }
+}
diff --git a/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/VnfParameterTest.java b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/VnfParameterTest.java
new file mode 100644
index 0000000000..46018b8f39
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/utils/VnfParameterTest.java
@@ -0,0 +1,38 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils;
+
+import org.junit.Test;
+
+import nl.jqno.equalsverifier.EqualsVerifier;
+import nl.jqno.equalsverifier.Warning;
+
+/**
+ * @author waqas.ikram@est.tech
+ *
+ */
+public class VnfParameterTest {
+    @Test
+    public void testVnfParameter_equalAndHasCode() throws ClassNotFoundException {
+        EqualsVerifier.forClass(VnfParameter.class).suppress(Warning.STRICT_INHERITANCE, Warning.NONFINAL_FIELDS)
+                .verify();
+    }
+
+}
diff --git a/bpmn/so-bpmn-tasks/src/test/resources/__files/SDNCClientPrelaodDataResponse.json b/bpmn/so-bpmn-tasks/src/test/resources/__files/SDNCClientPrelaodDataResponse.json
new file mode 100644
index 0000000000..0de25616e3
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/resources/__files/SDNCClientPrelaodDataResponse.json
@@ -0,0 +1,127 @@
+{
+    "vnf-preload-list": [
+        {
+            "vnf-name": "GENERIC_VNF_NAME",
+            "vnf-type": "SIMPLE",
+            "preload-data": 
+            {
+                "network-topology-information": 
+                {
+                },
+                "vnf-topology-information": 
+                {
+                    "vnf-topology-identifier": 
+                    {
+                        "service-type": "vCPE",
+                        "vnf-type": "SIMPLE",
+                        "vnf-name": "GENERIC_VNF_NAME",
+                        "generic-vnf-name": "GENERIC_VNF_NAME",
+                        "generic-vnf-type": "SIMPLE"
+                    },
+                    "vnf-parameters": [
+                        {
+                            "vnf-parameter-name": "extra_console",
+                            "vnf-parameter-value": "ttyS1"
+                        },
+                        {
+                            "vnf-parameter-name": "vnfUsername",
+                            "vnf-parameter-value": "vnf_user"
+                        },
+                        {
+                            "vnf-parameter-name": "additionalParams",
+                            "vnf-parameter-value": "{\"image_id\": \"DUMMYVNF\",\"instance_type\": \"m1.small\",\"ftp_address\": \"ftp://0.0.0.0:2100/\"}"
+                        },
+                        {
+                            "vnf-parameter-name": "fsb_admin_gateway_ip_1",
+                            "vnf-parameter-value": "0.0.0.0"
+                        },
+                        {
+                            "vnf-parameter-name": "availability_zone_1"
+                        },
+                        {
+                            "vnf-parameter-name": "fsb_admin_gateway_ip_2"
+                        },
+                        {
+                            "vnf-parameter-name": "fsb_admin_prefix_length",
+                            "vnf-parameter-value": "28"
+                        },
+                        {
+                            "vnf-parameter-name": "ONAPMME_OMCN_vLC_P4_prefix_length",
+                            "vnf-parameter-value": "28"
+                        },
+                        {
+                            "vnf-parameter-name": "gpbs",
+                            "vnf-parameter-value": "2"
+                        },
+                        {
+                            "vnf-parameter-name": "fsb_admin_ip_2",
+                            "vnf-parameter-value": "192.0.0.1"
+                        },
+                        {
+                            "vnf-parameter-name": "internal_mtu",
+                            "vnf-parameter-value": "1500"
+                        },
+                        {
+                            "vnf-parameter-name": "storage_drbd_sync_rate",
+                            "vnf-parameter-value": "0"
+                        },
+                        {
+                            "vnf-parameter-name": "ONAPMME_MEDIA_vLC_P3_net_id",
+                            "vnf-parameter-value": "ONAPMME_MEDIA_vLC_P3"
+                        },
+                        {
+                            "vnf-parameter-name": "extVirtualLinks",
+                            "vnf-parameter-value": "[{\"id\":\"ac1ed33d-8dc1-4800-8ce8-309b99c38eec\",\"tenant\":{\"cloudOwner\":\"CloudOwner\",\"regionName\":\"RegionOne\",\"tenantId\":\"80c26954-2536-4bca-9e20-10f8a2c9c2ad\"},\"resourceId\":\"8ef8cd54-75fd-4372-a6dd-2e05ea8fbd9b\",\"extCps\":[{\"cpdId\":\"f449292f-2f0f-4656-baa3-a18d86bac80f\",\"cpConfig\":[{\"cpInstanceId\":\"07876709-b66f-465c-99a7-0f4d026197f2\",\"linkPortId\":null,\"cpProtocolData\":null}]}],\"extLinkPorts\":null}]"
+                        },
+                        {
+                            "vnf-parameter-name": "vnfIpAddress",
+                            "vnf-parameter-value": "127.0.0.0"
+                        },
+                        {
+                            "vnf-parameter-name": "node_type",
+                            "vnf-parameter-value": "sgsnl"
+                        },
+                        {
+                            "vnf-parameter-name": "ONAPMME_SIG_vLC_P2_net_id",
+                            "vnf-parameter-value": "ONAPMME_SIG_vLC_P2"
+                        },
+                        {
+                            "vnf-parameter-name": "updateOss",
+                            "vnf-parameter-value": "false"
+                        },
+                        {
+                            "vnf-parameter-name": "tmo",
+                            "vnf-parameter-value": "0"
+                        },
+                        {
+                            "vnf-parameter-name": "ss7",
+                            "vnf-parameter-value": "Not_Applicable"
+                        },
+                        {
+                            "vnf-parameter-name": "ONAPMME_OMCN_vLC_P4_net_id",
+                            "vnf-parameter-value": "ONAPMME_OMCN_vLC_P4"
+                        },
+                        {
+                            "vnf-parameter-name": "key_name"
+                        },
+                        {
+                            "vnf-parameter-name": "fsb_admin_dns_server_ip_2"
+                        },
+                        {
+                            "vnf-parameter-name": "time_zone",
+                            "vnf-parameter-value": "GMT"
+                        },
+                        {
+                            "vnf-parameter-name": "enableRollback",
+                            "vnf-parameter-value": "false"
+                        }
+                    ]
+                },
+                "oper-status": 
+                {
+                    "order-status": "PendingAssignment"
+                }
+            }
+        }
+    ]
+}
diff --git a/bpmn/so-bpmn-tasks/src/test/resources/__files/SDNCClientPrelaodDataResponseWithInvalidAdditionalAndExtVmData.json b/bpmn/so-bpmn-tasks/src/test/resources/__files/SDNCClientPrelaodDataResponseWithInvalidAdditionalAndExtVmData.json
new file mode 100644
index 0000000000..c2cf2b2f28
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/resources/__files/SDNCClientPrelaodDataResponseWithInvalidAdditionalAndExtVmData.json
@@ -0,0 +1,47 @@
+{
+    "vnf-preload-list": [
+        {
+            "vnf-name": "GENERIC_VNF_NAME",
+            "vnf-type": "SIMPLE",
+            "preload-data": 
+            {
+                "network-topology-information": 
+                {
+                },
+                "vnf-topology-information": 
+                {
+                    "vnf-topology-identifier": 
+                    {
+                        "service-type": "vCPE",
+                        "vnf-type": "SIMPLE",
+                        "vnf-name": "GENERIC_VNF_NAME",
+                        "generic-vnf-name": "GENERIC_VNF_NAME",
+                        "generic-vnf-type": "SIMPLE"
+                    },
+                    "vnf-parameters": [
+                        {
+                            "vnf-parameter-name": "extra_console",
+                            "vnf-parameter-value": "ttyS1"
+                        },
+                        {
+                            "vnf-parameter-name": "vnfUsername",
+                            "vnf-parameter-value": "vnf_user"
+                        },
+                        {
+                            "vnf-parameter-name": "additionalParams",
+                            "vnf-parameter-value": "[\"abc\"]"
+                        },
+                        {
+                            "vnf-parameter-name": "extVirtualLinks",
+                            "vnf-parameter-value": "{\"def\":\"123\"}"
+                        }
+                    ]
+                },
+                "oper-status": 
+                {
+                    "order-status": "PendingAssignment"
+                }
+            }
+        }
+    ]
+}
diff --git a/bpmn/so-bpmn-tasks/src/test/resources/__files/SDNCClientPrelaodDataResponseWithInvalidData.json b/bpmn/so-bpmn-tasks/src/test/resources/__files/SDNCClientPrelaodDataResponseWithInvalidData.json
new file mode 100644
index 0000000000..552adb9125
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/resources/__files/SDNCClientPrelaodDataResponseWithInvalidData.json
@@ -0,0 +1,39 @@
+{
+    "vnf-preload-list": [
+        {
+            "vnf-name": "GENERIC_VNF_NAME",
+            "vnf-type": "SIMPLE",
+            "preload-data": 
+            {
+                "network-topology-information": 
+                {
+                },
+                "vnf-topology-information": 
+                {
+                    "vnf-topology-identifier": 
+                    {
+                        "service-type": "vCPE",
+                        "vnf-type": "SIMPLE",
+                        "vnf-name": "GENERIC_VNF_NAME",
+                        "generic-vnf-name": "GENERIC_VNF_NAME",
+                        "generic-vnf-type": "SIMPLE"
+                    },
+                    "vnf-parameters": [
+                        {
+                            "vnf-parameter-name": "extra_console",
+                            "vnf-parameter-value": "ttyS1"
+                        },
+                        {
+                            "vnf-parameter-name": "vnfUsername",
+                            "vnf-parameter-value": "vnf_user"
+                        }
+                    ]
+                },
+                "oper-status": 
+                {
+                    "order-status": "PendingAssignment"
+                }
+            }
+        }
+    ]
+}
diff --git a/bpmn/so-bpmn-tasks/src/test/resources/__files/SDNCClientPrelaodDataResponseWithInvalidVnfParamsTag.json b/bpmn/so-bpmn-tasks/src/test/resources/__files/SDNCClientPrelaodDataResponseWithInvalidVnfParamsTag.json
new file mode 100644
index 0000000000..e19ad1c9d3
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/resources/__files/SDNCClientPrelaodDataResponseWithInvalidVnfParamsTag.json
@@ -0,0 +1,34 @@
+{
+    "vnf-preload-list": [
+        {
+            "vnf-name": "GENERIC_VNF_NAME",
+            "vnf-type": "SIMPLE",
+            "preload-data": 
+            {
+                "network-topology-information": 
+                {
+                },
+                "vnf-topology-information": 
+                {
+                    "vnf-topology-identifier": 
+                    {
+                        "service-type": "vCPE",
+                        "vnf-type": "SIMPLE",
+                        "vnf-name": "GENERIC_VNF_NAME",
+                        "generic-vnf-name": "GENERIC_VNF_NAME",
+                        "generic-vnf-type": "SIMPLE"
+                    },
+                    "vnf-parameters": [
+                        {
+                            "hello": "world"
+                        }
+                    ]
+                },
+                "oper-status": 
+                {
+                    "order-status": "PendingAssignment"
+                }
+            }
+        }
+    ]
+}