Add Create Instance Rest Endpoint

Added Camel Endpoint

Will Apply Unit Tests on POLICY-3537, since focus is to
get the functionalities completed.

Issue-ID: POLICY-3436
Change-Id: I8305896b24c30fc0403c57b3925af983065a5ec2
Signed-off-by: brunomilitzer <bruno.militzer@est.tech>

4 files changed, 181 insertions, 7 deletions

diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/commissioning/CommissioningProvider.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/commissioning/CommissioningProvider.java
index e676cbe0e..ba632f9cc 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/commissioning/CommissioningProvider.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/commissioning/CommissioningProvider.java
@@ -33,6 +33,7 @@ import java.util.stream.Collectors;
 import javax.ws.rs.core.Response.Status;
 import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.collections4.MapUtils;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
 import org.onap.policy.clamp.controlloop.models.controlloop.persistence.provider.ControlLoopProvider;
 import org.onap.policy.clamp.controlloop.models.messages.rest.commissioning.CommissioningResponse;
 import org.onap.policy.models.base.PfModelException;
@@ -85,7 +86,13 @@ public class CommissioningProvider {
      * @throws PfModelException on creation errors
      */
     public CommissioningResponse createControlLoopDefinitions(ToscaServiceTemplate serviceTemplate)
-            throws PfModelException {
+        throws PfModelException, ControlLoopException {
+
+        if (verifyIfInstancePropertiesExists()) {
+            throw new ControlLoopException(Status.BAD_REQUEST,
+                "Delete instances, to commission control loop definitions");
+        }
+
         synchronized (lockit) {
             modelsProvider.createServiceTemplate(serviceTemplate);
         }
@@ -110,7 +117,14 @@ public class CommissioningProvider {
      * @return the result of the deletion
      * @throws PfModelException on deletion errors
      */
-    public CommissioningResponse deleteControlLoopDefinition(String name, String version) throws PfModelException {
+    public CommissioningResponse deleteControlLoopDefinition(String name, String version)
+        throws PfModelException, ControlLoopException {
+
+        if (verifyIfInstancePropertiesExists()) {
+            throw new ControlLoopException(Status.BAD_REQUEST,
+                "Delete instances, to commission control loop definitions");
+        }
+
         synchronized (lockit) {
             modelsProvider.deleteServiceTemplate(name, version);
         }
@@ -365,7 +379,9 @@ public class CommissioningProvider {
      * @return the tosca service template
      * @throws PfModelException on errors getting tosca service template
      */
-    public String getToscaServiceTemplateReduced(String name, String version) throws PfModelException {
+    public String getToscaServiceTemplateReduced(String name, String version)
+        throws PfModelException {
+
         var serviceTemplates = new ToscaServiceTemplates();
         serviceTemplates.setServiceTemplates(modelsProvider.getServiceTemplateList(name, version));
 
@@ -431,4 +447,15 @@ public class CommissioningProvider {
             throw new PfModelException(Status.BAD_REQUEST, "Converion to Json Schema failed", e);
         }
     }
+
+    /**
+     * Validates to see if there is any instance properties saved.
+     *
+     * @return true if exists instance properties
+     */
+    private Boolean verifyIfInstancePropertiesExists() {
+        return clProvider.getNodeTemplates(null, null).stream()
+            .anyMatch(nodeTemplate -> nodeTemplate.getKey().getName().contains("_Instance"));
+
+    }
 }
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/instantiation/ControlLoopInstantiationProvider.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/instantiation/ControlLoopInstantiationProvider.java
index cb22132b4..da85b0a83 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/instantiation/ControlLoopInstantiationProvider.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/instantiation/ControlLoopInstantiationProvider.java
@@ -37,6 +37,7 @@ import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoop
 import org.onap.policy.clamp.controlloop.models.controlloop.persistence.provider.ControlLoopProvider;
 import org.onap.policy.clamp.controlloop.models.messages.rest.GenericNameVersion;
 import org.onap.policy.clamp.controlloop.models.messages.rest.instantiation.ControlLoopOrderStateResponse;
+import org.onap.policy.clamp.controlloop.models.messages.rest.instantiation.InstancePropertiesResponse;
 import org.onap.policy.clamp.controlloop.models.messages.rest.instantiation.InstantiationCommand;
 import org.onap.policy.clamp.controlloop.models.messages.rest.instantiation.InstantiationResponse;
 import org.onap.policy.clamp.controlloop.runtime.commissioning.CommissioningProvider;
@@ -48,6 +49,7 @@ import org.onap.policy.common.parameters.ValidationStatus;
 import org.onap.policy.models.base.PfModelException;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaNodeTemplate;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
 import org.springframework.stereotype.Component;
 
 /**
@@ -62,6 +64,44 @@ public class ControlLoopInstantiationProvider {
 
     private static final Object lockit = new Object();
 
+    private static final String CL_ELEMENT_NAME = "name";
+
+    /**
+     * Create Instance Properties.
+     *
+     * @param serviceTemplate the service template
+     * @return the result of the instantiation operation
+     * @throws PfModelException on creation errors
+     */
+    public InstancePropertiesResponse saveInstanceProperties(ToscaServiceTemplate serviceTemplate) {
+
+        String instanceName = generateSequentialInstanceName();
+
+        Map<String, ToscaNodeTemplate> nodeTemplates = serviceTemplate.getToscaTopologyTemplate().getNodeTemplates();
+
+        nodeTemplates.forEach((key, template) -> {
+            String name = key + instanceName;
+            String description = template.getDescription() + instanceName;
+            template.setName(name);
+            template.setDescription(description);
+
+            changeInstanceElementsName(template, instanceName);
+
+        });
+
+        Map<String, ToscaNodeTemplate> toscaSavedNodeTemplate = controlLoopProvider
+            .saveInstanceProperties(serviceTemplate);
+
+        var response = new InstancePropertiesResponse();
+
+        // @formatter:off
+        response.setAffectedInstanceProperties(toscaSavedNodeTemplate.values().stream().map(template ->
+            template.getKey().asIdentifier()).collect(Collectors.toList()));
+        // @formatter:on
+
+        return response;
+    }
+
     /**
      * Create control loops.
      *
@@ -267,10 +307,10 @@ public class ControlLoopInstantiationProvider {
 
         List<ControlLoop> controlLoops = controlLoopProvider.getControlLoops(name, version);
 
-        ControlLoopOrderStateResponse response = new ControlLoopOrderStateResponse();
+        var response = new ControlLoopOrderStateResponse();
 
         controlLoops.forEach(controlLoop -> {
-            GenericNameVersion genericNameVersion = new GenericNameVersion();
+            var genericNameVersion = new GenericNameVersion();
             genericNameVersion.setName(controlLoop.getName());
             genericNameVersion.setVersion(controlLoop.getVersion());
             response.getControlLoopIdentifierList().add(genericNameVersion);
@@ -278,4 +318,44 @@ public class ControlLoopInstantiationProvider {
 
         return response;
     }
+
+    /**
+     * Creates instance element name.
+     *
+     * @param serviceTemplate the service serviceTemplate
+     * @param instanceName    to amend to the element name
+     */
+    private void changeInstanceElementsName(ToscaNodeTemplate serviceTemplate, String instanceName) {
+
+        @SuppressWarnings("unchecked")
+        List<Map<String, String>> controlLoopElements = (List<Map<String, String>>) serviceTemplate.getProperties()
+            .get("elements");
+
+        if (controlLoopElements != null) {
+            controlLoopElements.forEach(clElement -> {
+                String name = clElement.get(CL_ELEMENT_NAME) + instanceName;
+                clElement.replace(CL_ELEMENT_NAME, name);
+            });
+        }
+    }
+
+
+    /**
+     * Generates Instance Name in sequential order and return it to append to the Node Template Name.
+     *
+     * @return instanceName
+     */
+    private String generateSequentialInstanceName() {
+        List<ToscaNodeTemplate> nodeTemplates = controlLoopProvider.getNodeTemplates(null, null);
+
+        int instanceNumber =
+            nodeTemplates.stream().map(ToscaNodeTemplate::getName)
+                .filter(name -> name.contains("_Instance")).map(n -> {
+                    String[] defNameArr = n.split("_Instance");
+
+                    return Integer.parseInt(defNameArr[1]);
+                }).reduce(0, Math::max);
+
+        return "_Instance" + (instanceNumber + 1);
+    }
 }
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/main/rest/CommissioningController.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/main/rest/CommissioningController.java
index ec7f14d8b..2c3a41e26 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/main/rest/CommissioningController.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/main/rest/CommissioningController.java
@@ -33,6 +33,7 @@ import java.util.Map;
 import java.util.UUID;
 import javax.ws.rs.core.Response.Status;
 import lombok.RequiredArgsConstructor;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
 import org.onap.policy.clamp.controlloop.models.messages.rest.commissioning.CommissioningResponse;
 import org.onap.policy.clamp.controlloop.runtime.commissioning.CommissioningProvider;
 import org.onap.policy.clamp.controlloop.runtime.main.web.AbstractRestController;
@@ -120,7 +121,7 @@ public class CommissioningController extends AbstractRestController {
                     name = REQUEST_ID_NAME,
                     required = false) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,
             @ApiParam(value = "Entity Body of Control Loop", required = true) @RequestBody ToscaServiceTemplate body)
-            throws PfModelException {
+        throws PfModelException, ControlLoopException {
 
         return ResponseEntity.ok().body(provider.createControlLoopDefinitions(body));
     }
@@ -187,7 +188,7 @@ public class CommissioningController extends AbstractRestController {
             @ApiParam(
                     value = "Control Loop definition version",
                     required = true) @RequestParam("version") String version)
-            throws PfModelException {
+        throws PfModelException, ControlLoopException {
 
         return ResponseEntity.ok().body(provider.deleteControlLoopDefinition(name, version));
     }
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/main/rest/InstantiationController.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/main/rest/InstantiationController.java
index 6f0c859da..d2a85c46d 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/main/rest/InstantiationController.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/main/rest/InstantiationController.java
@@ -33,11 +33,13 @@ import lombok.RequiredArgsConstructor;
 import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoops;
 import org.onap.policy.clamp.controlloop.models.messages.rest.instantiation.ControlLoopOrderStateResponse;
+import org.onap.policy.clamp.controlloop.models.messages.rest.instantiation.InstancePropertiesResponse;
 import org.onap.policy.clamp.controlloop.models.messages.rest.instantiation.InstantiationCommand;
 import org.onap.policy.clamp.controlloop.models.messages.rest.instantiation.InstantiationResponse;
 import org.onap.policy.clamp.controlloop.runtime.instantiation.ControlLoopInstantiationProvider;
 import org.onap.policy.clamp.controlloop.runtime.main.web.AbstractRestController;
 import org.onap.policy.models.base.PfModelException;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.DeleteMapping;
@@ -127,6 +129,70 @@ public class InstantiationController extends AbstractRestController {
     }
 
     /**
+     * Saves instance properties.
+     *
+     * @param requestId request ID used in ONAP logging
+     * @param body the body of control loop following TOSCA definition
+     * @return a response
+     */
+    // @formatter:off
+    @PostMapping(value = "/instanceProperties",
+        consumes = {MediaType.APPLICATION_JSON_VALUE, APPLICATION_YAML},
+        produces = {MediaType.APPLICATION_JSON_VALUE, APPLICATION_YAML})
+    @ApiOperation(
+        value = "Saves instance properties",
+        notes = "Saves instance properties, returning the saved instances properties and it's version",
+        response = InstancePropertiesResponse.class,
+        tags = {TAGS},
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE),
+        responseHeaders = {
+            @ResponseHeader(
+                name = VERSION_MINOR_NAME,
+                description = VERSION_MINOR_DESCRIPTION,
+                response = String.class),
+            @ResponseHeader(
+                name = VERSION_PATCH_NAME,
+                description = VERSION_PATCH_DESCRIPTION,
+                response = String.class),
+            @ResponseHeader(
+                name = VERSION_LATEST_NAME,
+                description = VERSION_LATEST_DESCRIPTION,
+                response = String.class),
+            @ResponseHeader(
+                name = REQUEST_ID_NAME,
+                description = REQUEST_ID_HDR_DESCRIPTION,
+                response = UUID.class)
+        },
+        extensions = {
+            @Extension
+                (
+                    name = EXTENSION_NAME,
+                    properties = {
+                        @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),
+                        @ExtensionProperty(name = LAST_MOD_NAME, value = LAST_MOD_RELEASE)
+                    }
+                )
+        }
+    )
+    @ApiResponses(
+        value = {
+            @ApiResponse(code = AUTHENTICATION_ERROR_CODE, message = AUTHENTICATION_ERROR_MESSAGE),
+            @ApiResponse(code = AUTHORIZATION_ERROR_CODE, message = AUTHORIZATION_ERROR_MESSAGE),
+            @ApiResponse(code = SERVER_ERROR_CODE, message = SERVER_ERROR_MESSAGE)
+        }
+    )
+    // @formatter:on
+    public ResponseEntity<InstancePropertiesResponse> createInstanceProperties(
+            @RequestHeader(
+                name = REQUEST_ID_NAME,
+                required = false) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,
+            @ApiParam(value = "Body of instance properties", required = true) @RequestBody ToscaServiceTemplate body)
+        throws PfModelException {
+
+        return ResponseEntity.ok().body(provider.saveInstanceProperties(body));
+    }
+
+    /**
      * Queries details of all control loops.
      *
      * @param requestId request ID used in ONAP logging