Add tests

Add tests for download all and improve efficiency with stream

Issue-ID: CLAMP-518
Change-Id: Ia78ed8da7e54eaeaaed4fb87f483e0aff3a4a8c4
Signed-off-by: sebdet <sebastien.determe@intl.att.com>

3 files changed, 63 insertions, 46 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 96294207..e916afc1 100644
--- a/src/main/java/org/onap/clamp/clds/client/PolicyEngineServices.java
+++ b/src/main/java/org/onap/clamp/clds/client/PolicyEngineServices.java
@@ -32,8 +32,12 @@ import org.apache.camel.builder.ExchangeBuilder;
 import org.onap.clamp.clds.config.ClampProperties;
 import org.onap.clamp.clds.sdc.controller.installer.BlueprintMicroService;
 import org.onap.clamp.loop.template.PolicyModel;
+import org.onap.clamp.loop.template.PolicyModelId;
+import org.onap.clamp.loop.template.PolicyModelsRepository;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
 
 /**
  * The class implements the communication with the Policy Engine to retrieve
@@ -45,6 +49,8 @@ import org.springframework.stereotype.Component;
 public class PolicyEngineServices {
     private final CamelContext camelContext;
 
+    private final PolicyModelsRepository policyModelsRepository;
+
     private static final EELFLogger logger = EELFManager.getInstance().getLogger(PolicyEngineServices.class);
     private static final EELFLogger auditLogger = EELFManager.getInstance().getAuditLogger();
     private static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
@@ -55,9 +61,10 @@ public class PolicyEngineServices {
     public static final String POLICY_RETRY_LIMIT = "policy.retry.limit";
 
     @Autowired
-    public PolicyEngineServices(CamelContext camelContext, ClampProperties refProp) {
+    public PolicyEngineServices(CamelContext camelContext, ClampProperties refProp,
+            PolicyModelsRepository policyModelsRepository) {
         this.camelContext = camelContext;
-
+        this.policyModelsRepository = policyModelsRepository;
         if (refProp.getStringValue(POLICY_RETRY_LIMIT) != null) {
             retryLimit = Integer.valueOf(refProp.getStringValue(POLICY_RETRY_LIMIT));
         }
@@ -66,20 +73,20 @@ public class PolicyEngineServices {
         }
     }
 
-    public PolicyModel createPolicyModelFromPolicyEngine(String policyType, String policyVersion)
-            throws InterruptedException {
-        return new PolicyModel(policyType, this.downloadOnePolicy(policyType, policyVersion), policyVersion,
-                createPolicyAcronym(policyType));
+    public PolicyModel createPolicyModelFromPolicyEngine(String policyType, String policyVersion) {
+        return new PolicyModel(policyType, this.downloadOnePolicy(policyType, policyVersion), policyVersion);
     }
 
-    public PolicyModel createPolicyModelFromPolicyEngine(BlueprintMicroService microService)
-            throws InterruptedException {
+    public PolicyModel createPolicyModelFromPolicyEngine(BlueprintMicroService microService) {
         return createPolicyModelFromPolicyEngine(microService.getModelType(), microService.getModelVersion());
     }
 
-    private static String createPolicyAcronym(String policyType) {
-        String[] policyNameArray = policyType.split("\\.");
-        return policyNameArray[policyNameArray.length - 1];
+    @Transactional(propagation = Propagation.REQUIRES_NEW)
+    public void createPolicyInDbIfNeeded(PolicyModel policyModel) {
+        if (!policyModelsRepository
+                .existsById(new PolicyModelId(policyModel.getPolicyModelType(), policyModel.getVersion()))) {
+            policyModelsRepository.save(policyModel);
+        }
     }
 
     /**
@@ -89,7 +96,7 @@ public class PolicyEngineServices {
      * @return A yaml containing all policy Types and all data types
      * @throws InterruptedException In case of issue when sleeping during the retry
      */
-    public String downloadAllPolicies() throws InterruptedException {
+    public String downloadAllPolicies() {
         return callCamelRoute(ExchangeBuilder.anExchange(camelContext).build(), "direct:get-all-policy-models");
     }
 
@@ -101,12 +108,12 @@ public class PolicyEngineServices {
      * @return A string with the whole policy tosca model
      * @throws InterruptedException In case of issue when sleeping during the retry
      */
-    public String downloadOnePolicy(String policyType, String policyVersion) throws InterruptedException {
+    public String downloadOnePolicy(String policyType, String policyVersion) {
         return callCamelRoute(ExchangeBuilder.anExchange(camelContext).withProperty("policyModelName", policyType)
                 .withProperty("policyModelVersion", policyVersion).build(), "direct:get-policy-model");
     }
 
-    private String callCamelRoute(Exchange exchange, String camelFlow) throws InterruptedException {
+    private String callCamelRoute(Exchange exchange, String camelFlow) {
         for (int i = 0; i < retryLimit; i++) {
             Exchange exchangeResponse = camelContext.createProducerTemplate().send(camelFlow, exchange);
             if (Integer.valueOf(200).equals(exchangeResponse.getIn().getHeader("CamelHttpResponseCode"))) {
@@ -114,7 +121,11 @@ public class PolicyEngineServices {
             } else {
                 logger.info("Policy query " + retryInterval + "ms before retrying ...");
                 // wait for a while and try to connect to DCAE again
-                Thread.sleep(retryInterval);
+                try {
+                    Thread.sleep(retryInterval);
+                } catch (InterruptedException e) {
+                    Thread.currentThread().interrupt();
+                }
             }
         }
         return "";
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 53539fcc..52f662bb 100644
--- a/src/main/java/org/onap/clamp/loop/template/PolicyModel.java
+++ b/src/main/java/org/onap/clamp/loop/template/PolicyModel.java
@@ -184,6 +184,22 @@ public class PolicyModel extends AuditEntity implements Serializable, Comparable
         this.policyAcronym = policyAcronym;
     }
 
+    /**
+     * 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
+     */
+    public PolicyModel(String policyType, String policyModelTosca, String version) {
+        this(policyType, policyModelTosca, version, createDefaultPolicyAcronym(policyType));
+    }
+
+    public static String createDefaultPolicyAcronym(String policyType) {
+        String[] policyNameArray = policyType.split("\\.");
+        return policyNameArray[policyNameArray.length - 1];
+    }
+
     @Override
     public int hashCode() {
         final int prime = 31;
diff --git a/src/main/java/org/onap/clamp/policy/downloader/PolicyDownloader.java b/src/main/java/org/onap/clamp/policy/downloader/PolicyEngineController.java
index 8795a125..f3eaf0c8 100644
--- a/src/main/java/org/onap/clamp/policy/downloader/PolicyDownloader.java
+++ b/src/main/java/org/onap/clamp/policy/downloader/PolicyEngineController.java
@@ -26,12 +26,12 @@ package org.onap.clamp.policy.downloader;
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
 
+import java.util.ArrayList;
 import java.util.LinkedHashMap;
+import java.util.List;
 import java.util.Map.Entry;
 
 import org.onap.clamp.clds.client.PolicyEngineServices;
-import org.onap.clamp.loop.template.PolicyModel;
-import org.onap.clamp.loop.template.PolicyModelId;
 import org.onap.clamp.loop.template.PolicyModelsRepository;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Configuration;
@@ -46,51 +46,41 @@ import org.yaml.snakeyaml.Yaml;
  */
 @Configuration
 @Profile("clamp-policy-controller")
-public class PolicyDownloader {
+public class PolicyEngineController {
 
-    protected static final EELFLogger logger = EELFManager.getInstance().getLogger(PolicyDownloader.class);
+    protected static final EELFLogger logger = EELFManager.getInstance().getLogger(PolicyEngineController.class);
     protected static final EELFLogger auditLogger = EELFManager.getInstance().getAuditLogger();
     protected static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
     public static final String POLICY_RETRY_INTERVAL = "policy.retry.interval";
     public static final String POLICY_RETRY_LIMIT = "policy.retry.limit";
 
     private final PolicyEngineServices policyEngineServices;
-    private final PolicyModelsRepository policyModelsRepository;
 
     @Autowired
-    public PolicyDownloader(PolicyEngineServices policyEngineService, PolicyModelsRepository policyModelsRepository) {
+    public PolicyEngineController(PolicyEngineServices policyEngineService,
+            PolicyModelsRepository policyModelsRepository) {
         this.policyEngineServices = policyEngineService;
-        this.policyModelsRepository = policyModelsRepository;
     }
 
-    private void createPolicyInDbIfNeeded(PolicyModel policyModel) {
-        if (!policyModelsRepository
-                .existsById(new PolicyModelId(policyModel.getPolicyModelType(), policyModel.getVersion()))) {
-            policyModelsRepository.save(policyModel);
+    @Scheduled(fixedRate = 120000)
+    public void synchronizeAllPolicies() {
+        LinkedHashMap<String, Object> loadedYaml;
+        loadedYaml = new Yaml().load(policyEngineServices.downloadAllPolicies());
+        if (loadedYaml == null || loadedYaml.isEmpty()) {
+            logger.warn("getAllPolicyType yaml returned by policy engine could not be decoded, as it's null or empty");
+            return;
         }
-    }
 
-    @Scheduled(fixedRate = 120000)
-    public void synchronizeAllPolicies() throws InterruptedException {
-        try {
-            LinkedHashMap<String, Object> loadedYaml = new Yaml().load(policyEngineServices.downloadAllPolicies());
-            if (loadedYaml == null || loadedYaml.isEmpty()) {
-                logger.warn(
-                        "getAllPolicyType yaml returned by policy engine could not be decoded, as it's null or empty");
-                return;
-            }
+        List<LinkedHashMap<String, Object>> policyTypesList = (List<LinkedHashMap<String, Object>>) loadedYaml
+                .get("policy_types");
+        policyTypesList.parallelStream().forEach(policyType -> {
+            Entry<String, Object> policyTypeEntry = (Entry<String, Object>) new ArrayList(policyType.entrySet()).get(0);
 
-            LinkedHashMap<String, Object> policyTypesList = (LinkedHashMap<String, Object>) loadedYaml
-                    .get("policy_types");
-            for (Entry<String, Object> policyType : policyTypesList.entrySet()) {
-                createPolicyInDbIfNeeded(policyEngineServices.createPolicyModelFromPolicyEngine(policyType.getKey(),
-                        ((String) ((LinkedHashMap<String, Object>) policyType.getValue()).get("version"))));
-            }
-        } catch (InterruptedException e) {
-            logger.warn("query to policy engine has been interrupted", e);
-            throw e;
-        }
+            policyEngineServices.createPolicyInDbIfNeeded(
+                    policyEngineServices.createPolicyModelFromPolicyEngine(policyTypeEntry.getKey(),
+                            ((String) ((LinkedHashMap<String, Object>) policyTypeEntry.getValue()).get("version"))));
 
+        });
     }
 
 }