Fix the legacy policies
[clamp.git] / src / main / java / org / onap / clamp / policy / operational / OperationalPolicy.java
index 033b539..528d695 100644 (file)
@@ -4,6 +4,7 @@
  * ================================================================================
  * Copyright (C) 2019 AT&T Intellectual Property. All rights
  *                             reserved.
+ * Modifications Copyright (C) 2020 Huawei Technologies Co., Ltd.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
 
 package org.onap.clamp.policy.operational;
 
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
+import com.google.gson.JsonSyntaxException;
 import com.google.gson.annotations.Expose;
+import java.io.IOException;
 import java.io.Serializable;
-
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.util.HashMap;
+import java.util.Map;
 import javax.persistence.Column;
-import javax.persistence.Convert;
 import javax.persistence.Entity;
 import javax.persistence.FetchType;
 import javax.persistence.Id;
 import javax.persistence.JoinColumn;
 import javax.persistence.ManyToOne;
 import javax.persistence.Table;
-import org.hibernate.annotations.Type;
+import javax.persistence.Transient;
+import org.apache.commons.lang3.RandomStringUtils;
 import org.hibernate.annotations.TypeDef;
 import org.hibernate.annotations.TypeDefs;
+import org.onap.clamp.clds.tosca.update.ToscaConverterWithDictionarySupport;
+import org.onap.clamp.dao.model.jsontype.StringJsonUserType;
 import org.onap.clamp.loop.Loop;
+import org.onap.clamp.loop.service.Service;
+import org.onap.clamp.loop.template.LoopElementModel;
+import org.onap.clamp.loop.template.PolicyModel;
 import org.onap.clamp.policy.Policy;
-import org.onap.clamp.dao.model.jsontype.StringJsonUserType;
+import org.yaml.snakeyaml.DumperOptions;
+import org.yaml.snakeyaml.Yaml;
 
 @Entity
 @Table(name = "operational_policies")
-@TypeDefs({ @TypeDef(name = "json", typeClass = StringJsonUserType.class) })
-public class OperationalPolicy implements Serializable, Policy {
+@TypeDefs({@TypeDef(name = "json", typeClass = StringJsonUserType.class)})
+public class OperationalPolicy extends Policy implements Serializable {
     /**
-     *
+     * The serial version ID.
      */
     private static final long serialVersionUID = 6117076450841538255L;
 
+    @Transient
+    private static final EELFLogger logger = EELFManager.getInstance().getLogger(OperationalPolicy.class);
+
     @Id
     @Expose
     @Column(nullable = false, name = "name", unique = true)
     private String name;
 
-    @Expose
-    @Type(type = "json")
-    @Column(columnDefinition = "json", name = "configurations_json")
-    private JsonObject configurationsJson;
-
     @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "loop_id", nullable = false)
     private Loop loop;
 
+    /**
+     * Constructor for serialization.
+     */
     public OperationalPolicy() {
-        //Serialization
     }
 
-    public OperationalPolicy(String name, Loop loop, JsonObject configurationsJson) {
+    /**
+     * The constructor.
+     *
+     * @param name               The name of the operational policy
+     * @param configurationsJson The operational policy property in the format of
+     *                           json
+     * @param jsonRepresentation The jsonObject defining the json schema
+     * @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
+     * @param pdpGroup           The Pdp Group info
+     * @param pdpSubgroup        The Pdp Subgroup info
+     */
+    public OperationalPolicy(String name, JsonObject configurationsJson,
+                             JsonObject jsonRepresentation, PolicyModel policyModel,
+                             LoopElementModel loopElementModel, String pdpGroup, String pdpSubgroup) {
         this.name = name;
-        this.loop = loop;
-        this.configurationsJson = configurationsJson;
+        this.setPolicyModel(policyModel);
+        this.setConfigurationsJson(configurationsJson);
+        this.setPdpGroup(pdpGroup);
+        this.setPdpSubgroup(pdpSubgroup);
+        this.setLoopElementModel(loopElementModel);
+        this.setJsonRepresentation(jsonRepresentation);
+
     }
 
-    public String getName() {
-        return name;
+    /**
+     * Create an operational policy from a loop element model.
+     *
+     * @param loop             The parent loop
+     * @param service          The loop service
+     * @param loopElementModel The loop element model
+     * @param toscaConverter   The tosca converter that must be used to create the Json representation
+     * @throws IOException In case of issues with the legacy files (generated from resource files
+     */
+    public OperationalPolicy(Loop loop, Service service, LoopElementModel loopElementModel,
+                             ToscaConverterWithDictionarySupport toscaConverter) throws IOException {
+        this(Policy.generatePolicyName("OPERATIONAL", service.getName(), service.getVersion(),
+                RandomStringUtils.randomAlphanumeric(3), RandomStringUtils.randomAlphanumeric(3)), new JsonObject(),
+                new JsonObject(), loopElementModel.getPolicyModels().first(), loopElementModel, null, null);
+        this.setLoop(loop);
+        this.setJsonRepresentation(generateJsonRepresentation(this, toscaConverter));
+    }
+
+    /**
+     * Create an operational policy from a policy model.
+     *
+     * @param loop             The parent loop
+     * @param service          The loop service
+     * @param policyModel       The policy model
+     * @param toscaConverter   The tosca converter that must be used to create the Json representation
+     * @throws IOException In case of issues with the legacy files (generated from resource files
+     */
+    public OperationalPolicy(Loop loop, Service service, PolicyModel policyModel,
+                             ToscaConverterWithDictionarySupport toscaConverter) throws IOException {
+        this(Policy.generatePolicyName("OPERATIONAL", service.getName(), service.getVersion(),
+                RandomStringUtils.randomAlphanumeric(3), RandomStringUtils.randomAlphanumeric(3)), new JsonObject(),
+                new JsonObject(), policyModel, null, null, null);
+        this.setLoop(loop);
+        this.setJsonRepresentation(generateJsonRepresentation(this, toscaConverter));
+    }
+
+    /**
+     * This method can generate a Json representation (json schema) for an operational policy.
+     * This is mainly to support a legacy case and a generic case.
+     * For the legacy case the operational policy given is modified (configurationJson).
+     *
+     * @param operationalPolicy The operational policy
+     * @param toscaConverter    The tosca converter
+     * @return The Json Object with Json schema
+     */
+    public static JsonObject generateJsonRepresentation(OperationalPolicy operationalPolicy,
+                                                        ToscaConverterWithDictionarySupport toscaConverter)
+            throws IOException {
+        JsonObject jsonReturned = new JsonObject();
+        if (operationalPolicy.getPolicyModel() == null) {
+            return new JsonObject();
+        }
+        if (operationalPolicy.isLegacy()) {
+            // Op policy Legacy case
+            LegacyOperationalPolicy.preloadConfiguration(operationalPolicy.getConfigurationsJson(), operationalPolicy.loop);
+            jsonReturned = OperationalPolicyRepresentationBuilder
+                    .generateOperationalPolicySchema(operationalPolicy.loop.getModelService());
+        }
+        else {
+            // Generic Case
+            jsonReturned = toscaConverter.convertToscaToJsonSchemaObject(
+                    operationalPolicy.getPolicyModel().getPolicyModelTosca(),
+                    operationalPolicy.getPolicyModel().getPolicyModelType());
+        }
+
+        return jsonReturned;
     }
 
     public void setLoop(Loop loopName) {
         this.loop = loopName;
     }
 
-    public Loop getLoop(){
+    public Loop getLoop() {
         return loop;
     }
 
     @Override
-    public JsonObject getJsonRepresentation() {
-        return configurationsJson;
-    }
-
-    public JsonObject getConfigurationsJson() {
-        return configurationsJson;
+    public String getName() {
+        return name;
     }
 
-    public void setConfigurationsJson(JsonObject configurationsJson) {
-        this.configurationsJson = configurationsJson;
+    /**
+     * name setter.
+     *
+     * @param name the name to set
+     */
+    @Override
+    public void setName(String name) {
+        this.name = name;
     }
 
     @Override
@@ -110,19 +214,123 @@ public class OperationalPolicy implements Serializable, Policy {
 
     @Override
     public boolean equals(Object obj) {
-        if (this == obj)
+        if (this == obj) {
             return true;
-        if (obj == null)
+        }
+        if (obj == null) {
             return false;
-        if (getClass() != obj.getClass())
+        }
+        if (getClass() != obj.getClass()) {
             return false;
+        }
         OperationalPolicy other = (OperationalPolicy) obj;
         if (name == null) {
-            if (other.name != null)
+            if (other.name != null) {
                 return false;
-        } else if (!name.equals(other.name))
+            }
+        }
+        else if (!name.equals(other.name)) {
             return false;
+        }
         return true;
     }
 
+    public Boolean isLegacy() {
+        return (this.getPolicyModel() != null) && this.getPolicyModel().getPolicyModelType().contains("legacy");
+    }
+
+    /**
+     * Create policy Yaml from json defined here.
+     *
+     * @return A string containing Yaml
+     */
+    public String createPolicyPayloadYaml() {
+        JsonObject policyPayloadResult = new JsonObject();
+
+        policyPayloadResult.addProperty("tosca_definitions_version", "tosca_simple_yaml_1_0_0");
+
+        JsonObject topologyTemplateNode = new JsonObject();
+        policyPayloadResult.add("topology_template", topologyTemplateNode);
+
+        JsonArray policiesArray = new JsonArray();
+        topologyTemplateNode.add("policies", policiesArray);
+
+        JsonObject operationalPolicy = new JsonObject();
+        policiesArray.add(operationalPolicy);
+
+        JsonObject operationalPolicyDetails = new JsonObject();
+        operationalPolicy.add(this.name, operationalPolicyDetails);
+        operationalPolicyDetails.addProperty("type", "onap.policies.controlloop.Operational");
+        operationalPolicyDetails.addProperty("version", "1.0.0");
+
+        JsonObject metadata = new JsonObject();
+        operationalPolicyDetails.add("metadata", metadata);
+        metadata.addProperty("policy-id", this.name);
+
+        operationalPolicyDetails.add("properties", LegacyOperationalPolicy
+                .reworkActorAttributes(this.getConfigurationsJson().get("operational_policy").deepCopy()));
+
+        DumperOptions options = new DumperOptions();
+        options.setIndent(2);
+        options.setPrettyFlow(true);
+        options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
+        Gson gson = new GsonBuilder().create();
+
+        return (new Yaml(options)).dump(gson.fromJson(gson.toJson(policyPayloadResult), Map.class));
+    }
+
+    @Override
+    public String createPolicyPayload() throws UnsupportedEncodingException {
+        if (isLegacy()) {
+            // Now using the legacy payload fo Dublin
+            JsonObject payload = new JsonObject();
+            payload.addProperty("policy-id", this.getName());
+            payload.addProperty("content",
+                    URLEncoder.encode(
+                            LegacyOperationalPolicy
+                                    .createPolicyPayloadYamlLegacy(
+                                            this.getConfigurationsJson().get("operational_policy")),
+                            StandardCharsets.UTF_8.toString()));
+            String opPayload = new GsonBuilder().setPrettyPrinting().create().toJson(payload);
+            logger.info("Operational policy payload: " + opPayload);
+            return opPayload;
+        }
+        else {
+            return super.createPolicyPayload();
+        }
+    }
+
+    /**
+     * Return a map containing all Guard policies indexed by Guard policy Name.
+     *
+     * @return The Guards map
+     */
+    public Map<String, String> createGuardPolicyPayloads() {
+        Map<String, String> result = new HashMap<>();
+
+        if (this.getConfigurationsJson() != null) {
+            JsonElement guardsList = this.getConfigurationsJson().get("guard_policies");
+            if (guardsList != null) {
+                for (JsonElement guardElem : guardsList.getAsJsonArray()) {
+                    result.put(guardElem.getAsJsonObject().get("policy-id").getAsString(),
+                            new GsonBuilder().create().toJson(guardElem));
+                }
+            }
+        }
+        logger.info("Guard policy payload: " + result);
+        return result;
+    }
+
+    /**
+     * Regenerate the Operational Policy Json Representation.
+     */
+    public void updateJsonRepresentation() {
+        try {
+            this.setJsonRepresentation(
+                    OperationalPolicyRepresentationBuilder.generateOperationalPolicySchema(loop.getModelService()));
+        } catch (JsonSyntaxException | IOException | NullPointerException e) {
+            logger.error("Unable to generate the operational policy Schema ... ", e);
+            this.setJsonRepresentation(new JsonObject());
+        }
+    }
 }