Move code to common, avoid duplication

This commit moves duplicate code from runtime and participant
to common

Issue-ID: POLICY-3542
Signed-off-by: Sirisha_Manchikanti <sirisha.manchikanti@est.tech>
Change-Id: Ia7cea1d2c88031c72af77338e242f8981e536c21

2 files changed, 158 insertions, 0 deletions

diff --git a/common/pom.xml b/common/pom.xml
index 75239ecf8..c60ed6c8f 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -34,6 +34,14 @@
     <name>${project.artifactId}</name>
     <description>Common utilities and code for the TOSCA Control Loop system</description>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.onap.policy.clamp</groupId>
+            <artifactId>policy-clamp-models</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+    </dependencies>
+
     <build>
         <plugins>
             <!-- Builds examples jar -->
diff --git a/common/src/main/java/org/onap/policy/clamp/controlloop/common/utils/CommonUtils.java b/common/src/main/java/org/onap/policy/clamp/controlloop/common/utils/CommonUtils.java
new file mode 100644
index 000000000..4b0e41f23
--- /dev/null
+++ b/common/src/main/java/org/onap/policy/clamp/controlloop/common/utils/CommonUtils.java
@@ -0,0 +1,150 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.common.utils;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElementDefinition;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantDefinition;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantUpdates;
+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.ToscaNodeType;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaTopologyTemplate;
+
+/**
+ * Utility functions used in controlloop-runtime and participants.
+ *
+ */
+public class CommonUtils {
+    private static final String POLICY_TYPE_ID = "policy_type_id";
+    private static final String POLICY_ID = "policy_id";
+
+    /**
+     * Prepare participant updates map.
+     *
+     * @param clElement controlloop element
+     * @param participantUpdates list of participantUpdates
+     */
+    public static void prepareParticipantUpdate(ControlLoopElement clElement,
+        List<ParticipantUpdates> participantUpdates) {
+        if (participantUpdates.isEmpty()) {
+            participantUpdates.add(getControlLoopElementList(clElement));
+            return;
+        }
+
+        var participantExists = false;
+        for (ParticipantUpdates participantUpdate : participantUpdates) {
+            if (participantUpdate.getParticipantId().equals(clElement.getParticipantId())) {
+                participantUpdate.setControlLoopElementList(List.of(clElement));
+                participantExists = true;
+            }
+        }
+        if (!participantExists) {
+            participantUpdates.add(getControlLoopElementList(clElement));
+        }
+    }
+
+    private static ParticipantUpdates getControlLoopElementList(ControlLoopElement clElement) {
+        var participantUpdate = new ParticipantUpdates();
+        participantUpdate.setParticipantId(clElement.getParticipantId());
+        participantUpdate.setControlLoopElementList(List.of(clElement));
+        return participantUpdate;
+    }
+
+    /**
+     * Set the Policy information in the service template for the controlloopelement.
+     *
+     * @param clElement controlloop element
+     * @param toscaServiceTemplate ToscaServiceTemplate
+     */
+    public static void setServiceTemplatePolicyInfo(ControlLoopElement clElement,
+            ToscaServiceTemplate toscaServiceTemplate) {
+        // Pass respective PolicyTypes or Policies as part of toscaServiceTemplateFragment
+        if (toscaServiceTemplate.getPolicyTypes() == null
+            && toscaServiceTemplate.getToscaTopologyTemplate().getPolicies() == null) {
+            return;
+        }
+        ToscaServiceTemplate toscaServiceTemplateFragment = new ToscaServiceTemplate();
+        toscaServiceTemplateFragment.setPolicyTypes(toscaServiceTemplate.getPolicyTypes());
+        ToscaTopologyTemplate toscaTopologyTemplate = new ToscaTopologyTemplate();
+        toscaTopologyTemplate.setPolicies(toscaServiceTemplate.getToscaTopologyTemplate().getPolicies());
+        toscaServiceTemplateFragment.setToscaTopologyTemplate(toscaTopologyTemplate);
+        toscaServiceTemplateFragment.setDataTypes(toscaServiceTemplate.getDataTypes());
+        clElement.setToscaServiceTemplateFragment(toscaServiceTemplateFragment);
+    }
+
+    /**
+     * Prepare ParticipantDefinitionUpdate to set in the message.
+     *
+     * @param clParticipantType controlloop element
+     * @param entryKey key for the entry
+     * @param entryValue value relates to toscaNodeTemplate
+     * @param participantDefinitionUpdates list of participantDefinitionUpdates
+     * @param commonPropertiesMap common properties map
+     */
+    public static void prepareParticipantDefinitionUpdate(ToscaConceptIdentifier clParticipantType, String entryKey,
+            ToscaNodeTemplate entryValue, List<ParticipantDefinition> participantDefinitionUpdates,
+            Map<String, ToscaNodeType> commonPropertiesMap) {
+
+        var clDefinition = new ControlLoopElementDefinition();
+        clDefinition.setClElementDefinitionId(new ToscaConceptIdentifier(entryKey, entryValue.getVersion()));
+        clDefinition.setControlLoopElementToscaNodeTemplate(entryValue);
+        if (commonPropertiesMap != null) {
+            ToscaNodeType nodeType = commonPropertiesMap.get(entryValue.getType());
+            if (nodeType != null) {
+                clDefinition.setCommonPropertiesMap(nodeType.getProperties());
+            }
+        }
+
+        List<ControlLoopElementDefinition> controlLoopElementDefinitionList = new ArrayList<>();
+
+        if (participantDefinitionUpdates.isEmpty()) {
+            participantDefinitionUpdates
+                    .add(getParticipantDefinition(clDefinition, clParticipantType, controlLoopElementDefinitionList));
+        } else {
+            var participantExists = false;
+            for (ParticipantDefinition participantDefinitionUpdate : participantDefinitionUpdates) {
+                if (participantDefinitionUpdate.getParticipantType().equals(clParticipantType)) {
+                    participantDefinitionUpdate.getControlLoopElementDefinitionList().add(clDefinition);
+                    participantExists = true;
+                }
+            }
+            if (!participantExists) {
+                participantDefinitionUpdates.add(
+                        getParticipantDefinition(clDefinition, clParticipantType, controlLoopElementDefinitionList));
+            }
+        }
+    }
+
+    private static ParticipantDefinition getParticipantDefinition(ControlLoopElementDefinition clDefinition,
+            ToscaConceptIdentifier clParticipantType,
+            List<ControlLoopElementDefinition> controlLoopElementDefinitionList) {
+        var participantDefinition = new ParticipantDefinition();
+        participantDefinition.setParticipantType(clParticipantType);
+        controlLoopElementDefinitionList.add(clDefinition);
+        participantDefinition.setControlLoopElementDefinitionList(controlLoopElementDefinitionList);
+        return participantDefinition;
+    }
+}