Add Create loop dialog

Add create loop dialog and backend part associated (this is based on this PR https://gerrit.onap.org/r/c/clamp/+/102156)

Issue-ID: CLAMP-587

Change-Id: I58524bc2d5bfbf5ca5a3acf5c59823df06fd4cd9
Signed-off-by: sebdet <sebastien.determe@intl.att.com>

17 files changed, 170 insertions, 79 deletions

diff --git a/src/main/java/org/onap/clamp/clds/client/PolicyEngineServices.java b/src/main/java/org/onap/clamp/clds/client/PolicyEngineServices.java
index b3fcb6f18..44abc9dde 100644
--- a/src/main/java/org/onap/clamp/clds/client/PolicyEngineServices.java
+++ b/src/main/java/org/onap/clamp/clds/client/PolicyEngineServices.java
@@ -25,10 +25,8 @@ package org.onap.clamp.clds.client;
 
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
-
 import com.google.gson.JsonArray;
 import com.google.gson.JsonObject;
-
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
@@ -38,27 +36,21 @@ import java.util.Map;
 import org.apache.camel.CamelContext;
 import org.apache.camel.Exchange;
 import org.apache.camel.builder.ExchangeBuilder;
-import org.json.simple.parser.ParseException;
 import org.onap.clamp.clds.config.ClampProperties;
 import org.onap.clamp.clds.sdc.controller.installer.BlueprintMicroService;
 import org.onap.clamp.clds.util.JsonUtils;
 import org.onap.clamp.loop.template.PolicyModel;
-import org.onap.clamp.loop.template.PolicyModelId;
 import org.onap.clamp.loop.template.PolicyModelsService;
 import org.onap.clamp.policy.pdpgroup.PdpGroup;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 import org.yaml.snakeyaml.Yaml;
 
 
-
-
 /**
  * The class implements the communication with the Policy Engine to retrieve
  * policy models (tosca). It mainly delegates the physical calls to Camel
  * engine.
- *
  */
 @Component
 public class PolicyEngineServices {
@@ -76,16 +68,15 @@ public class PolicyEngineServices {
     /**
      * Default constructor.
      *
-     * @param camelContext Camel context bean
-     * @param clampProperties ClampProperties bean
-     * @param policyModelsSService policyModel repository bean
+     * @param camelContext        Camel context bean
+     * @param clampProperties     ClampProperties bean
      * @param policyModelsService policyModel service
      */
     @Autowired
     public PolicyEngineServices(CamelContext camelContext, ClampProperties clampProperties,
-                                PolicyModelsService policyModelsSService) {
+                                PolicyModelsService policyModelsService) {
         this.camelContext = camelContext;
-        this.policyModelsService = policyModelsSService;
+        this.policyModelsService = policyModelsService;
         if (clampProperties.getStringValue(POLICY_RETRY_LIMIT) != null) {
             retryLimit = Integer.parseInt(clampProperties.getStringValue(POLICY_RETRY_LIMIT));
         }
@@ -97,7 +88,7 @@ public class PolicyEngineServices {
     /**
      * This method query Policy engine and create a PolicyModel object with type and version.
      *
-     * @param policyType The policyType id
+     * @param policyType    The policyType id
      * @param policyVersion The policy version of that type
      * @return A PolicyModel created from policyEngine data
      */
@@ -130,7 +121,8 @@ public class PolicyEngineServices {
         List<LinkedHashMap<String, Object>> policyTypesList = (List<LinkedHashMap<String, Object>>) loadedYaml
                 .get("policy_types");
         policyTypesList.parallelStream().forEach(policyType -> {
-            Map.Entry<String, Object> policyTypeEntry = (Map.Entry<String, Object>) new ArrayList(policyType.entrySet()).get(0);
+            Map.Entry<String, Object> policyTypeEntry =
+                    (Map.Entry<String, Object>) new ArrayList(policyType.entrySet()).get(0);
 
             policyModelsService.createPolicyInDbIfNeeded(
                     createPolicyModelFromPolicyEngine(policyTypeEntry.getKey(),
@@ -141,31 +133,34 @@ public class PolicyEngineServices {
     /**
      * This method can be used to download all policy types + data types defined in
      * policy engine.
-     * 
+     *
      * @return A yaml containing all policy Types and all data types
      */
     public String downloadAllPolicies() {
-        return callCamelRoute(ExchangeBuilder.anExchange(camelContext).build(), "direct:get-all-policy-models", "Get all policies");
+        return callCamelRoute(ExchangeBuilder.anExchange(camelContext).build(), "direct:get-all-policy-models",
+                "Get all policies");
     }
 
     /**
      * This method can be used to download a policy tosca model on the engine.
-     * 
+     *
      * @param policyType    The policy type (id)
      * @param policyVersion The policy version
      * @return A string with the whole policy tosca model
      */
     public String downloadOnePolicy(String policyType, String policyVersion) {
         return callCamelRoute(ExchangeBuilder.anExchange(camelContext).withProperty("policyModelName", policyType)
-                .withProperty("policyModelVersion", policyVersion).build(), "direct:get-policy-model", "Get one policy");
+                        .withProperty("policyModelVersion", policyVersion).build(), "direct:get-policy-model",
+                "Get one policy");
     }
 
     /**
      * This method can be used to download all Pdp Groups data from policy engine.
-     * 
      */
     public void downloadPdpGroups() {
-        String responseBody = callCamelRoute(ExchangeBuilder.anExchange(camelContext).build(), "direct:get-all-pdp-groups", "Get Pdp Groups");
+        String responseBody =
+                callCamelRoute(ExchangeBuilder.anExchange(camelContext).build(), "direct:get-all-pdp-groups",
+                        "Get Pdp Groups");
 
         if (responseBody == null || responseBody.isEmpty()) {
             logger.warn("getPdpGroups returned by policy engine could not be decoded, as it's null or empty");
diff --git a/src/main/java/org/onap/clamp/clds/config/CldsUserJsonDecoder.java b/src/main/java/org/onap/clamp/clds/config/CldsUserJsonDecoder.java
index 626227e20..a7ef10738 100644
--- a/src/main/java/org/onap/clamp/clds/config/CldsUserJsonDecoder.java
+++ b/src/main/java/org/onap/clamp/clds/config/CldsUserJsonDecoder.java
@@ -26,14 +26,12 @@
 package org.onap.clamp.clds.config;
 
 import com.google.gson.JsonParseException;
-
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
-
 import org.apache.commons.io.IOUtils;
-import org.onap.clamp.clds.exception.CldsUsersException;
 import org.onap.clamp.authorization.CldsUser;
+import org.onap.clamp.clds.exception.CldsUsersException;
 import org.onap.clamp.clds.util.JsonUtils;
 
 public class CldsUserJsonDecoder {
diff --git a/src/main/java/org/onap/clamp/clds/config/DefaultUserConfiguration.java b/src/main/java/org/onap/clamp/clds/config/DefaultUserConfiguration.java
index a4515860e..1261a5e95 100644
--- a/src/main/java/org/onap/clamp/clds/config/DefaultUserConfiguration.java
+++ b/src/main/java/org/onap/clamp/clds/config/DefaultUserConfiguration.java
@@ -27,12 +27,10 @@ package org.onap.clamp.clds.config;
 
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
-
 import java.io.IOException;
-
+import org.onap.clamp.authorization.CldsUser;
 import org.onap.clamp.clds.exception.CldsConfigException;
 import org.onap.clamp.clds.exception.CldsUsersException;
-import org.onap.clamp.authorization.CldsUser;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Configuration;
diff --git a/src/main/java/org/onap/clamp/clds/util/drawing/ClampGraphBuilder.java b/src/main/java/org/onap/clamp/clds/util/drawing/ClampGraphBuilder.java
index 7edf6c1a4..8e3b06a46 100755
--- a/src/main/java/org/onap/clamp/clds/util/drawing/ClampGraphBuilder.java
+++ b/src/main/java/org/onap/clamp/clds/util/drawing/ClampGraphBuilder.java
@@ -88,12 +88,10 @@ public class ClampGraphBuilder {
     public ClampGraphBuilder addLoopElementModel(LoopElementModel loopElementModel) {
         if (LoopElementModel.MICRO_SERVICE_TYPE.equals(loopElementModel.getLoopElementType())) {
             microServices.add(new MicroServicePolicy(loopElementModel.getName(),
-                    loopElementModel.getPolicyModels().first(),
-                    false,
-                    null));
+                    loopElementModel.getPolicyModels().first(), false, loopElementModel));
         } else if (LoopElementModel.OPERATIONAL_POLICY_TYPE.equals(loopElementModel.getLoopElementType())) {
             policies.add(new OperationalPolicy(loopElementModel.getName(), null, null,
-                    loopElementModel.getPolicyModels().first()));
+                    loopElementModel.getPolicyModels().first(), loopElementModel));
         }
         return this;
     }
diff --git a/src/main/java/org/onap/clamp/clds/util/drawing/Painter.java b/src/main/java/org/onap/clamp/clds/util/drawing/Painter.java
index af62d84a8..5ec59dbaf 100755
--- a/src/main/java/org/onap/clamp/clds/util/drawing/Painter.java
+++ b/src/main/java/org/onap/clamp/clds/util/drawing/Painter.java
@@ -83,7 +83,7 @@ public class Painter {
 
         for (MicroServicePolicy ms : microServices) {
             ib.arrow().rectangle(ms.getName(),
-                    RectTypes.MICROSERVICE, ms.getPolicyModel().getPolicyAcronym());
+                    RectTypes.MICROSERVICE, ms.getPolicyModel().getPolicyAcronym()).arrow();
         }
         for (OperationalPolicy policy : policies) {
             ib.arrow().rectangle(policy.getName(), RectTypes.POLICY, policy.getPolicyModel().getPolicyAcronym())
diff --git a/src/main/java/org/onap/clamp/loop/Loop.java b/src/main/java/org/onap/clamp/loop/Loop.java
index 676626a1f..b3fe58f9c 100644
--- a/src/main/java/org/onap/clamp/loop/Loop.java
+++ b/src/main/java/org/onap/clamp/loop/Loop.java
@@ -60,6 +60,7 @@ import org.onap.clamp.loop.components.external.ExternalComponent;
 import org.onap.clamp.loop.components.external.PolicyComponent;
 import org.onap.clamp.loop.log.LoopLog;
 import org.onap.clamp.loop.service.Service;
+import org.onap.clamp.loop.template.LoopElementModel;
 import org.onap.clamp.loop.template.LoopTemplate;
 import org.onap.clamp.policy.microservice.MicroServicePolicy;
 import org.onap.clamp.policy.operational.OperationalPolicy;
@@ -155,6 +156,28 @@ public class Loop extends AuditEntity implements Serializable {
         initializeExternalComponents();
     }
 
+    /**
+     * This constructor creates a loop from a loop template.
+     *
+     * @param name         The loop name
+     * @param loopTemplate The loop template from which a new loop instance must be created
+     */
+    public Loop(String name, LoopTemplate loopTemplate) {
+        this(name,"");
+        this.setLoopTemplate(loopTemplate);
+        this.setModelService(loopTemplate.getModelService());
+        loopTemplate.getLoopElementModelsUsed().forEach(element -> {
+            if (LoopElementModel.MICRO_SERVICE_TYPE.equals(element.getLoopElementModel().getLoopElementType())) {
+                this.addMicroServicePolicy(new MicroServicePolicy(name,
+                        element.getLoopElementModel().getPolicyModels().first(), false, element.getLoopElementModel()));
+            } else if (LoopElementModel.OPERATIONAL_POLICY_TYPE
+                    .equals(element.getLoopElementModel().getLoopElementType())) {
+                this.addOperationalPolicy(new OperationalPolicy(name, null, new JsonObject(),
+                        element.getLoopElementModel().getPolicyModels().first(), element.getLoopElementModel()));
+            }
+        });
+    }
+
     public String getName() {
         return name;
     }
diff --git a/src/main/java/org/onap/clamp/loop/LoopController.java b/src/main/java/org/onap/clamp/loop/LoopController.java
index c161c550e..7b037da6d 100644
--- a/src/main/java/org/onap/clamp/loop/LoopController.java
+++ b/src/main/java/org/onap/clamp/loop/LoopController.java
@@ -40,16 +40,22 @@ import org.springframework.stereotype.Controller;
 public class LoopController {
 
     private final LoopService loopService;
-    private static final Type OPERATIONAL_POLICY_TYPE = new TypeToken<List<OperationalPolicy>>() {}
-        .getType();
-    private static final Type MICROSERVICE_POLICY_TYPE = new TypeToken<List<MicroServicePolicy>>() {}
-        .getType();
+    private static final Type OPERATIONAL_POLICY_TYPE = new TypeToken<List<OperationalPolicy>>() {
+    }
+            .getType();
+    private static final Type MICROSERVICE_POLICY_TYPE = new TypeToken<List<MicroServicePolicy>>() {
+    }
+            .getType();
 
     @Autowired
     public LoopController(LoopService loopService) {
         this.loopService = loopService;
     }
 
+    public Loop createLoop(String loopName, String templateName) {
+        return loopService.createLoopFromTemplate(loopName, templateName);
+    }
+
     public List<String> getLoopNames() {
         return loopService.getClosedLoopNames();
     }
diff --git a/src/main/java/org/onap/clamp/loop/LoopService.java b/src/main/java/org/onap/clamp/loop/LoopService.java
index 6ea412c00..34be2038e 100644
--- a/src/main/java/org/onap/clamp/loop/LoopService.java
+++ b/src/main/java/org/onap/clamp/loop/LoopService.java
@@ -28,6 +28,7 @@ import java.util.List;
 import java.util.Set;
 import javax.persistence.EntityNotFoundException;
 import org.apache.commons.lang3.RandomStringUtils;
+import org.onap.clamp.loop.template.LoopTemplatesService;
 import org.onap.clamp.loop.template.PolicyModel;
 import org.onap.clamp.loop.template.PolicyModelsService;
 import org.onap.clamp.policy.Policy;
@@ -53,6 +54,9 @@ public class LoopService {
     @Autowired
     private PolicyModelsService policyModelsService;
 
+    @Autowired
+    private LoopTemplatesService loopTemplateService;
+
     Loop saveOrUpdateLoop(Loop loop) {
         return loopsRepository.save(loop);
     }
@@ -70,6 +74,17 @@ public class LoopService {
     }
 
     /**
+     * Creates a Loop Instance from Loop Template Name.
+     *
+     * @param loopName Name of the Loop to be created
+     * @param templateName Loop Template to used for Loop
+     * @return Loop Instance
+     */
+    public Loop createLoopFromTemplate(String loopName, String templateName) {
+        return loopsRepository.save(new Loop(loopName,loopTemplateService.getLoopTemplate(templateName)));
+    }
+
+    /**
      * This method is used to refresh the DCAE deployment status fields.
      *
      * @param loop          The loop instance to be modified
@@ -96,7 +111,7 @@ public class LoopService {
         loop.addOperationalPolicy(
                 new OperationalPolicy(Policy.generatePolicyName("OPERATIONAL", loop.getModelService().getName(),
                         loop.getModelService().getVersion(), RandomStringUtils.randomAlphanumeric(3),
-                        RandomStringUtils.randomAlphanumeric(4)), loop, null, policyModel));
+                        RandomStringUtils.randomAlphanumeric(4)), loop, null, policyModel, null));
         return loopsRepository.save(loop);
     }
 
diff --git a/src/main/java/org/onap/clamp/loop/template/LoopTemplatesService.java b/src/main/java/org/onap/clamp/loop/template/LoopTemplatesService.java
index 29382137e..09bc80f89 100644
--- a/src/main/java/org/onap/clamp/loop/template/LoopTemplatesService.java
+++ b/src/main/java/org/onap/clamp/loop/template/LoopTemplatesService.java
@@ -49,6 +49,17 @@ public class LoopTemplatesService {
         return loopTemplatesRepository.save(loopTemplate);
     }
 
+
+    /**
+     * Get the SVG representation of the loopTemplate.
+     *
+     * @param templateName The loopTemplate name
+     * @return The SVG representation in xml
+     */
+    public String getSvgRepresentation(String templateName) {
+        return loopTemplatesRepository.findById(templateName).orElse(new LoopTemplate()).getSvgRepresentation();
+    }
+
     public List<String> getLoopTemplateNames() {
         return loopTemplatesRepository.getAllLoopTemplateNames();
     }
diff --git a/src/main/java/org/onap/clamp/loop/template/PolicyModel.java b/src/main/java/org/onap/clamp/loop/template/PolicyModel.java
index 7334eceb8..66b05f65f 100644
--- a/src/main/java/org/onap/clamp/loop/template/PolicyModel.java
+++ b/src/main/java/org/onap/clamp/loop/template/PolicyModel.java
@@ -35,7 +35,6 @@ import javax.persistence.Id;
 import javax.persistence.IdClass;
 import javax.persistence.ManyToMany;
 import javax.persistence.Table;
-
 import org.hibernate.annotations.Type;
 import org.hibernate.annotations.TypeDef;
 import org.hibernate.annotations.TypeDefs;
@@ -72,7 +71,7 @@ public class PolicyModel extends AuditEntity implements Serializable, Comparable
      */
     @Id
     @Expose
-    @Column(name = "version",nullable = false)
+    @Column(name = "version", nullable = false)
     private String version;
 
     @Column(columnDefinition = "MEDIUMTEXT", name = "policy_tosca")
@@ -198,17 +197,17 @@ public class PolicyModel extends AuditEntity implements Serializable, Comparable
     /**
      * Constructor.
      *
-     * @param policyType The policyType (referenced in the blueprint
+     * @param policyType       The policyType (referenced in the blueprint
      * @param policyModelTosca The policy tosca model in yaml
-     * @param version the version like 1.0.0
-     * @param policyAcronym Subtype for policy if it exists (could be used by UI)
+     * @param version          the version like 1.0.0
+     * @param policyAcronym    Subtype for policy if it exists (could be used by UI)
      */
     public PolicyModel(String policyType, String policyModelTosca, String version,
-        String policyAcronym) {
+                       String policyAcronym) {
         this.policyModelType = policyType;
         this.policyModelTosca = policyModelTosca;
         this.version = version;
-        this.policyAcronym=policyAcronym;
+        this.policyAcronym = policyAcronym;
         if (this.policyAcronym == null) {
             this.policyAcronym = createDefaultPolicyAcronym(policyType);
         }
@@ -216,7 +215,7 @@ public class PolicyModel extends AuditEntity implements Serializable, Comparable
 
     /**
      * Constructor with acronym generated by default from policyType.
-     * 
+     *
      * @param policyType       The policyType (referenced in the blueprint
      * @param policyModelTosca The policy tosca model in yaml
      * @param version          the version like 1.0.0
diff --git a/src/main/java/org/onap/clamp/loop/template/PolicyModelsService.java b/src/main/java/org/onap/clamp/loop/template/PolicyModelsService.java
index b38be942e..7e21cc390 100644
--- a/src/main/java/org/onap/clamp/loop/template/PolicyModelsService.java
+++ b/src/main/java/org/onap/clamp/loop/template/PolicyModelsService.java
@@ -52,8 +52,7 @@ public class PolicyModelsService {
     /**
      * Save or Update Policy Model.
      *
-     * @param policyModel
-     *        The policyModel
+     * @param policyModel The policyModel
      * @return The Policy Model
      */
     public PolicyModel saveOrUpdatePolicyModel(PolicyModel policyModel) {
@@ -63,8 +62,7 @@ public class PolicyModelsService {
     /**
      * Verify whether Policy Model exist by ID.
      *
-     * @param policyModelId
-     *        The policyModel Id
+     * @param policyModelId The policyModel Id
      * @return The flag indicates whether Policy Model exist
      */
     public boolean existsById(PolicyModelId policyModelId) {
@@ -157,14 +155,14 @@ public class PolicyModelsService {
         }
     }
 
-     /**
+    /**
      * Update the Pdp Group info in Policy Model DB.
      *
      * @param pdpGroupList The list of Pdp Group info received from Policy Engine
      */
     public void updatePdpGroupInfo(List<PdpGroup> pdpGroupList) {
         List<PolicyModel> policyModelList = policyModelsRepository.findAll();
-        for (PolicyModel policyModel :  policyModelList) {
+        for (PolicyModel policyModel : policyModelList) {
             JsonArray supportedPdpGroups = new JsonArray();
             for (PdpGroup pdpGroup : pdpGroupList) {
                 JsonObject supportedPdpGroup = pdpGroup.getSupportedSubgroups(policyModel.getPolicyModelType(),
@@ -175,7 +173,7 @@ public class PolicyModelsService {
             }
 
             if (supportedPdpGroups.size() > 0) {
-                JsonObject supportedPdpJson = new JsonObject ();
+                JsonObject supportedPdpJson = new JsonObject();
                 supportedPdpJson.add("supportedPdpGroups", supportedPdpGroups);
                 policyModel.setPolicyPdpGroup(supportedPdpJson);
                 policyModelsRepository.save(policyModel);
diff --git a/src/main/java/org/onap/clamp/policy/microservice/MicroServicePolicy.java b/src/main/java/org/onap/clamp/policy/microservice/MicroServicePolicy.java
index 8d9017eae..75efca769 100644
--- a/src/main/java/org/onap/clamp/policy/microservice/MicroServicePolicy.java
+++ b/src/main/java/org/onap/clamp/policy/microservice/MicroServicePolicy.java
@@ -51,6 +51,7 @@ import org.onap.clamp.clds.tosca.ToscaYamlToJsonConvertor;
 import org.onap.clamp.clds.util.JsonUtils;
 import org.onap.clamp.dao.model.jsontype.StringJsonUserType;
 import org.onap.clamp.loop.Loop;
+import org.onap.clamp.loop.template.LoopElementModel;
 import org.onap.clamp.loop.template.PolicyModel;
 import org.onap.clamp.policy.Policy;
 import org.yaml.snakeyaml.Yaml;
@@ -110,23 +111,17 @@ public class MicroServicePolicy extends Policy implements Serializable {
     }
 
     /**
-     * The constructor that create the json representation from the policyTosca
+     * The constructor that creates the json representation from the policyTosca
      * using the ToscaYamlToJsonConvertor.
      *
      * @param name        The name of the MicroService
      * @param policyModel The policy model of the MicroService
      * @param shared      The flag indicate whether the MicroService is shared
-     * @param usedByLoops The list of loops that uses this MicroService
      */
-    public MicroServicePolicy(String name, PolicyModel policyModel, Boolean shared,
-                              Set<Loop> usedByLoops) {
-        this.name = name;
-        this.policyModel = policyModel;
-        this.shared = shared;
-        this.setJsonRepresentation(JsonUtils.GSON_JPA_MODEL
+    public MicroServicePolicy(String name, PolicyModel policyModel, Boolean shared, LoopElementModel loopElementModel) {
+        this(name,policyModel,shared,JsonUtils.GSON_JPA_MODEL
                 .fromJson(new ToscaYamlToJsonConvertor().parseToscaYaml(policyModel.getPolicyModelTosca(),
-                        policyModel.getPolicyModelType()), JsonObject.class));
-        this.usedByLoops = usedByLoops;
+                        policyModel.getPolicyModelType()), JsonObject.class),loopElementModel);
     }
 
     private JsonObject createJsonFromPolicyTosca() {
@@ -138,21 +133,20 @@ public class MicroServicePolicy extends Policy implements Serializable {
     /**
      * The constructor that does not make use of ToscaYamlToJsonConvertor but take
      * the jsonRepresentation instead.
-     *
      * @param name               The name of the MicroService
      * @param policyModel        The policy model type of the MicroService
      * @param shared             The flag indicate whether the MicroService is
-     *                           shared
+ *                           shared
      * @param jsonRepresentation The UI representation in json format
-     * @param usedByLoops        The list of loops that uses this MicroService
+     * @param loopElementModel The loop element model from which this instance should be created
      */
     public MicroServicePolicy(String name, PolicyModel policyModel, Boolean shared,
-                              JsonObject jsonRepresentation, Set<Loop> usedByLoops) {
+                              JsonObject jsonRepresentation, LoopElementModel loopElementModel) {
         this.name = name;
         this.policyModel = policyModel;
         this.shared = shared;
-        this.usedByLoops = usedByLoops;
         this.setJsonRepresentation(jsonRepresentation);
+        this.setLoopElementModel(loopElementModel);
     }
 
     @Override
diff --git a/src/main/java/org/onap/clamp/policy/microservice/MicroServicePolicyService.java b/src/main/java/org/onap/clamp/policy/microservice/MicroServicePolicyService.java
index b17bf1ac4..2af8ec720 100644
--- a/src/main/java/org/onap/clamp/policy/microservice/MicroServicePolicyService.java
+++ b/src/main/java/org/onap/clamp/policy/microservice/MicroServicePolicyService.java
@@ -23,12 +23,9 @@
 
 package org.onap.clamp.policy.microservice;
 
-import com.google.common.collect.Sets;
-
 import java.util.List;
 import java.util.Set;
 import java.util.stream.Collectors;
-
 import org.onap.clamp.loop.Loop;
 import org.onap.clamp.policy.PolicyService;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -66,7 +63,7 @@ public class MicroServicePolicyService implements PolicyService<MicroServicePoli
         return repository.save(
                 repository.findById(policy.getName()).map(p -> updateMicroservicePolicyProperties(p, policy, loop))
                         .orElse(new MicroServicePolicy(policy.getName(), policy.getPolicyModel(),
-                                policy.getShared(), policy.getJsonRepresentation(), Sets.newHashSet(loop))));
+                                policy.getShared(), policy.getJsonRepresentation(),null)));
     }
 
     private MicroServicePolicy updateMicroservicePolicyProperties(MicroServicePolicy oldPolicy,
@@ -84,7 +81,6 @@ public class MicroServicePolicyService implements PolicyService<MicroServicePoli
      * @param microServicePolicy The micro service policy
      * @param deploymentId       The deployment ID as returned by DCAE
      * @param deploymentUrl      The Deployment URL as returned by DCAE
-     * @throws MicroServicePolicy doesn't exist in DB
      */
     public void updateDcaeDeploymentFields(MicroServicePolicy microServicePolicy, String deploymentId,
             String deploymentUrl) {
diff --git a/src/main/java/org/onap/clamp/policy/operational/OperationalPolicy.java b/src/main/java/org/onap/clamp/policy/operational/OperationalPolicy.java
index 0825ea9e5..52b877208 100644
--- a/src/main/java/org/onap/clamp/policy/operational/OperationalPolicy.java
+++ b/src/main/java/org/onap/clamp/policy/operational/OperationalPolicy.java
@@ -55,6 +55,7 @@ import org.hibernate.annotations.TypeDef;
 import org.hibernate.annotations.TypeDefs;
 import org.onap.clamp.dao.model.jsontype.StringJsonUserType;
 import org.onap.clamp.loop.Loop;
+import org.onap.clamp.loop.template.LoopElementModel;
 import org.onap.clamp.loop.template.PolicyModel;
 import org.onap.clamp.policy.Policy;
 import org.yaml.snakeyaml.DumperOptions;
@@ -93,18 +94,20 @@ public class OperationalPolicy extends Policy implements Serializable {
 
     /**
      * The constructor.
-     *
-     * @param name               The name of the operational policy
+     *  @param name               The name of the operational policy
      * @param loop               The loop that uses this operational policy
      * @param configurationsJson The operational policy property in the format of
-     *                           json
+ *                           json
      * @param policyModel        The policy model associated if any, can be null
+     * @param loopElementModel The loop element from which this instance is supposed to be created
      */
-    public OperationalPolicy(String name, Loop loop, JsonObject configurationsJson, PolicyModel policyModel) {
+    public OperationalPolicy(String name, Loop loop, JsonObject configurationsJson, PolicyModel policyModel,
+                             LoopElementModel loopElementModel) {
         this.name = name;
         this.loop = loop;
         this.setPolicyModel(policyModel);
         this.setConfigurationsJson(configurationsJson);
+        this.setLoopElementModel(loopElementModel);
         LegacyOperationalPolicy.preloadConfiguration(configurationsJson, loop);
         try {
             this.setJsonRepresentation(
diff --git a/src/main/java/org/onap/clamp/policy/operational/OperationalPolicyService.java b/src/main/java/org/onap/clamp/policy/operational/OperationalPolicyService.java
index 174912b22..cc636babb 100644
--- a/src/main/java/org/onap/clamp/policy/operational/OperationalPolicyService.java
+++ b/src/main/java/org/onap/clamp/policy/operational/OperationalPolicyService.java
@@ -52,7 +52,7 @@ public class OperationalPolicyService implements PolicyService<OperationalPolicy
                                 .map(p -> setConfigurationJson(p, policy.getConfigurationsJson()))
                                 .orElse(new OperationalPolicy(policy.getName(), loop,
                                         policy.getConfigurationsJson(),
-                                        policy.getPolicyModel())))
+                                        policy.getPolicyModel(), null)))
                 .collect(Collectors.toSet());
     }
 
diff --git a/src/main/resources/META-INF/resources/swagger.html b/src/main/resources/META-INF/resources/swagger.html
index 0138d9a30..74322f36b 100644
--- a/src/main/resources/META-INF/resources/swagger.html
+++ b/src/main/resources/META-INF/resources/swagger.html
@@ -3758,7 +3758,7 @@ body.book #toc,body.book #preamble,body.book h1.sect0,body.book .sect1>h2{page-b
 </div>
 <div id="footer">
 <div id="footer-text">
-Last updated 2019-05-27 14:30:20 CEST
+Last updated 2020-02-12 02:20:53 PST
 </div>
 </div>
 </body>
diff --git a/src/main/resources/clds/camel/rest/clamp-api-v2.xml b/src/main/resources/clds/camel/rest/clamp-api-v2.xml
index 1f927267c..280b808c3 100644
--- a/src/main/resources/clds/camel/rest/clamp-api-v2.xml
+++ b/src/main/resources/clds/camel/rest/clamp-api-v2.xml
@@ -612,7 +612,40 @@
 				</doTry>
 			</route>
 		</put>
-
+		<post
+				uri="/v2/loop/create/{loopName}?templateName={templateName}"
+				outType="org.onap.clamp.loop.Loop" consumes="application/json"
+				produces="application/json">
+			<route>
+				<removeHeaders
+						pattern="*"
+						excludePattern="loopName|templateName" />
+				<doTry>
+					<to
+							uri="bean:org.onap.clamp.flow.log.FlowLogOperation?method=startLog(*, 'Create Loop')" />
+					<to
+							uri="bean:org.onap.clamp.authorization.AuthorizationController?method=authorize(*,'cl','','update')" />
+					<to
+							uri="bean:org.onap.clamp.loop.LoopController?method=createLoop(${header.loopName}, ${header.templateName})" />
+					<to
+							uri="bean:org.onap.clamp.flow.log.FlowLogOperation?method=endLog()" />
+					<doCatch>
+						<exception>java.lang.Exception</exception>
+						<handled>
+							<constant>true</constant>
+						</handled>
+						<setHeader headerName="CamelHttpResponseCode">
+							<constant>500</constant>
+						</setHeader>
+						<transform>
+							<simple>ERROR: ${exception.message}</simple>
+					</transform>
+						<to
+								uri="bean:org.onap.clamp.flow.log.FlowLogOperation?method=errorLog()" />
+					</doCatch>
+				</doTry>
+			</route>
+		</post>
 		<get uri="/v2/dictionary"
 			outType="org.onap.clamp.tosca.Dictionary" produces="application/json">
 			<route>
@@ -1050,6 +1083,30 @@
 				</doTry>
 			</route>
 		</get>
+		<get uri="/v2/templates/{templateName}/svgRepresentation"
+			 outType="java.lang.String" produces="application/xml">
+			<route>
+				<removeHeaders pattern="*" excludePattern="templateName" />
+				<doTry>
+					<to
+							uri="bean:org.onap.clamp.flow.log.FlowLogOperation?method=startLog(*, 'Get SVG Representation for Loop template')" />
+					<to
+							uri="bean:org.onap.clamp.authorization.AuthorizationController?method=authorize(*,'template','','read')" />
+					<to
+							uri="bean:org.onap.clamp.loop.template.LoopTemplatesService?method=getSvgRepresentation(${header.templateName})" />
+					<to
+							uri="bean:org.onap.clamp.flow.log.FlowLogOperation?method=endLog()" />
+					<doCatch>
+						<exception>java.lang.Exception</exception>
+						<handled>
+							<constant>false</constant>
+						</handled>
+						<to
+								uri="bean:org.onap.clamp.flow.log.FlowLogOperation?method=errorLog()" />
+					</doCatch>
+				</doTry>
+			</route>
+		</get>
 		<get uri="/v2/clampInformation" outType="org.onap.clamp.clds.model.ClampInformation"
 			 produces="application/json">
 			<to