Parsing CSAR to retrieve policy model

Content of policies.xml taken from the CSAR file and ready to store into the db.

Change-Id: I9ee0d0474fa355ae4c9db1e1ee40a3f087002e88
Issue-ID: CLAMP-261
Signed-off-by: Tomasz Golabek <tomasz.golabek@nokia.com>

8 files changed, 98 insertions, 6 deletions

diff --git a/src/main/java/org/onap/clamp/clds/exception/policy/PolicyModelException.java b/src/main/java/org/onap/clamp/clds/exception/policy/PolicyModelException.java
new file mode 100644
index 00000000..0b64b78e
--- /dev/null
+++ b/src/main/java/org/onap/clamp/clds/exception/policy/PolicyModelException.java
@@ -0,0 +1,31 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP CLAMP
+ * ================================================================================
+ * Copyright (C) 2019 Nokia Intellectual Property. All rights
+ *                             reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END============================================
+ * ===================================================================
+ *
+ */
+
+package org.onap.clamp.clds.exception.policy;
+
+public class PolicyModelException extends Exception {
+
+    public PolicyModelException(String msg, Throwable throwable) {
+        super(msg, throwable);
+    }
+}
diff --git a/src/main/java/org/onap/clamp/clds/sdc/controller/SdcSingleController.java b/src/main/java/org/onap/clamp/clds/sdc/controller/SdcSingleController.java
index 5959c0fb..c9405d20 100644
--- a/src/main/java/org/onap/clamp/clds/sdc/controller/SdcSingleController.java
+++ b/src/main/java/org/onap/clamp/clds/sdc/controller/SdcSingleController.java
@@ -33,6 +33,7 @@ import java.util.concurrent.ThreadLocalRandom;
 

 import org.onap.clamp.clds.config.ClampProperties;

 import org.onap.clamp.clds.config.sdc.SdcSingleControllerConfiguration;

+import org.onap.clamp.clds.exception.policy.PolicyModelException;

 import org.onap.clamp.clds.exception.sdc.controller.CsarHandlerException;

 import org.onap.clamp.clds.exception.sdc.controller.SdcArtifactInstallerException;

 import org.onap.clamp.clds.exception.sdc.controller.SdcControllerException;

@@ -257,6 +258,10 @@ public class SdcSingleController {
             logger.error("SdcDownloadException exception caught during the notification processing", e);

             sendAllNotificationForCsarHandler(iNotif, csar, NotificationType.DOWNLOAD,

                 DistributionStatusEnum.DOWNLOAD_ERROR, e.getMessage());

+        } catch (PolicyModelException e) {

+            logger.error("PolicyModelException exception caught during the notification processing", e);

+            sendAllNotificationForCsarHandler(iNotif, csar, NotificationType.DEPLOY,

+                DistributionStatusEnum.DEPLOY_ERROR, e.getMessage());

         } catch (InterruptedException e) {

             logger.error("Interrupt exception caught during the notification processing", e);

             sendAllNotificationForCsarHandler(iNotif, csar, NotificationType.DEPLOY,

@@ -266,7 +271,7 @@ public class SdcSingleController {
             logger.error("Unexpected exception caught during the notification processing", e);

             sendAllNotificationForCsarHandler(iNotif, csar, NotificationType.DEPLOY,

                 DistributionStatusEnum.DEPLOY_ERROR, e.getMessage());

-        } finally {

+        }  finally {

             this.changeControllerStatus(SdcSingleControllerStatus.IDLE);

         }

     }

diff --git a/src/main/java/org/onap/clamp/clds/sdc/controller/installer/CsarHandler.java b/src/main/java/org/onap/clamp/clds/sdc/controller/installer/CsarHandler.java
index 1a99919e..f2c75ef2 100644
--- a/src/main/java/org/onap/clamp/clds/sdc/controller/installer/CsarHandler.java
+++ b/src/main/java/org/onap/clamp/clds/sdc/controller/installer/CsarHandler.java
@@ -36,6 +36,7 @@ import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 
@@ -68,6 +69,7 @@ public class CsarHandler {
     private INotificationData sdcNotification;
     public static final String RESOURCE_INSTANCE_NAME_PREFIX = "/Artifacts/Resources/";
     public static final String RESOURCE_INSTANCE_NAME_SUFFIX = "/Deployment/";
+    public static final String POLICY_DEFINITION_NAME_SUFFIX = "Definitions/policies.yml";
 
     public CsarHandler(INotificationData iNotif, String controller, String clampCsarPath) throws CsarHandlerException {
         this.sdcNotification = iNotif;
@@ -167,4 +169,17 @@ public class CsarHandler {
     public Map<String, BlueprintArtifact> getMapOfBlueprints() {
         return mapOfBlueprints;
     }
+
+    Optional<String> getPolicyModelYaml() throws IOException {
+        String result = null;
+        try (ZipFile zipFile = new ZipFile(csarFilePath)) {
+            ZipEntry entry = zipFile.getEntry(POLICY_DEFINITION_NAME_SUFFIX);
+            if (entry != null) {
+                result = IOUtils.toString(zipFile.getInputStream(entry));
+            } else{
+                logger.info("Policy model not found inside the CSAR file: " + csarFilePath);
+            }
+            return Optional.ofNullable(result);
+        }
+    }
 }
diff --git a/src/main/java/org/onap/clamp/clds/sdc/controller/installer/CsarInstaller.java b/src/main/java/org/onap/clamp/clds/sdc/controller/installer/CsarInstaller.java
index b5c025ec..12a761db 100644
--- a/src/main/java/org/onap/clamp/clds/sdc/controller/installer/CsarInstaller.java
+++ b/src/main/java/org/onap/clamp/clds/sdc/controller/installer/CsarInstaller.java
@@ -23,11 +23,13 @@
 
 package org.onap.clamp.clds.sdc.controller.installer;
 
+import org.onap.clamp.clds.exception.policy.PolicyModelException;
 import org.onap.clamp.clds.exception.sdc.controller.SdcArtifactInstallerException;
 
 public interface CsarInstaller {
 
     boolean isCsarAlreadyDeployed(CsarHandler csar) throws SdcArtifactInstallerException;
 
-    public void installTheCsar(CsarHandler csar) throws SdcArtifactInstallerException, InterruptedException;
+    public void installTheCsar(CsarHandler csar)
+        throws SdcArtifactInstallerException, InterruptedException, PolicyModelException;
 }
diff --git a/src/main/java/org/onap/clamp/clds/sdc/controller/installer/CsarInstallerImpl.java b/src/main/java/org/onap/clamp/clds/sdc/controller/installer/CsarInstallerImpl.java
index bfda6924..6841b87b 100644
--- a/src/main/java/org/onap/clamp/clds/sdc/controller/installer/CsarInstallerImpl.java
+++ b/src/main/java/org/onap/clamp/clds/sdc/controller/installer/CsarInstallerImpl.java
@@ -34,6 +34,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 
+import java.util.Optional;
 import javax.annotation.PostConstruct;
 import javax.xml.transform.TransformerException;
 
@@ -43,6 +44,7 @@ import org.onap.clamp.clds.client.DcaeInventoryServices;
 import org.onap.clamp.clds.config.sdc.BlueprintParserFilesConfiguration;
 import org.onap.clamp.clds.config.sdc.BlueprintParserMappingConfiguration;
 import org.onap.clamp.clds.dao.CldsDao;
+import org.onap.clamp.clds.exception.policy.PolicyModelException;
 import org.onap.clamp.clds.exception.sdc.controller.SdcArtifactInstallerException;
 import org.onap.clamp.clds.model.CldsModel;
 import org.onap.clamp.clds.model.CldsTemplate;
@@ -125,7 +127,8 @@ public class CsarInstallerImpl implements CsarInstaller {
 
     @Override
     @Transactional
-    public void installTheCsar(CsarHandler csar) throws SdcArtifactInstallerException, InterruptedException {
+    public void installTheCsar(CsarHandler csar)
+        throws SdcArtifactInstallerException, InterruptedException, PolicyModelException {
         try {
             logger.info("Installing the CSAR " + csar.getFilePath());
             for (Entry<String, BlueprintArtifact> blueprint : csar.getMapOfBlueprints().entrySet()) {
@@ -135,6 +138,7 @@ public class CsarInstallerImpl implements CsarInstaller {
                         this.searchForRightMapping(blueprint.getValue())),
                     queryDcaeToGetServiceTypeId(blueprint.getValue()));
             }
+            createPolicyModel(csar);
             logger.info("Successfully installed the CSAR " + csar.getFilePath());
         } catch (IOException e) {
             throw new SdcArtifactInstallerException("Exception caught during the Csar installation in database", e);
@@ -143,6 +147,15 @@ public class CsarInstallerImpl implements CsarInstaller {
         }
     }
 
+    private void createPolicyModel(CsarHandler csar) throws PolicyModelException {
+        try{
+            Optional<String> policyModelYaml = csar.getPolicyModelYaml();
+            // save policy model into the database
+        } catch (IOException e) {
+            throw new PolicyModelException("TransformerException when decoding the YamlText", e);
+        }
+    }
+
     private BlueprintParserFilesConfiguration searchForRightMapping(BlueprintArtifact blueprintArtifact)
         throws SdcArtifactInstallerException {
         List<BlueprintParserFilesConfiguration> listConfig = new ArrayList<>();
diff --git a/src/test/java/org/onap/clamp/clds/it/sdc/controller/installer/CsarInstallerItCase.java b/src/test/java/org/onap/clamp/clds/it/sdc/controller/installer/CsarInstallerItCase.java
index 2c24dcb5..0df25238 100644
--- a/src/test/java/org/onap/clamp/clds/it/sdc/controller/installer/CsarInstallerItCase.java
+++ b/src/test/java/org/onap/clamp/clds/it/sdc/controller/installer/CsarInstallerItCase.java
@@ -42,6 +42,7 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mockito;
 import org.onap.clamp.clds.dao.CldsDao;
+import org.onap.clamp.clds.exception.policy.PolicyModelException;
 import org.onap.clamp.clds.exception.sdc.controller.CsarHandlerException;
 import org.onap.clamp.clds.exception.sdc.controller.SdcArtifactInstallerException;
 import org.onap.clamp.clds.model.CldsModel;
@@ -78,7 +79,7 @@ public class CsarInstallerItCase {
 
     @Test(expected = SdcArtifactInstallerException.class)
     public void testInstallTheCsarFail() throws SdcArtifactInstallerException, SdcToscaParserException,
-        CsarHandlerException, IOException, InterruptedException {
+        CsarHandlerException, IOException, InterruptedException, PolicyModelException {
         CsarHandler csarHandler = Mockito.mock(CsarHandler.class);
         BlueprintArtifact blueprintArtifact = Mockito.mock(BlueprintArtifact.class);
         Mockito.when(blueprintArtifact.getResourceAttached()).thenReturn(Mockito.mock(IResourceInstance.class));
@@ -145,7 +146,7 @@ public class CsarInstallerItCase {
 
     @Test
     public void testIsCsarAlreadyDeployedTca() throws SdcArtifactInstallerException, SdcToscaParserException,
-        CsarHandlerException, IOException, InterruptedException {
+        CsarHandlerException, IOException, InterruptedException, PolicyModelException {
         String generatedName = RandomStringUtils.randomAlphanumeric(5);
         CsarHandler csarHandler = buildFakeCsarHandler(generatedName);
         assertFalse(csarInstaller.isCsarAlreadyDeployed(csarHandler));
@@ -155,7 +156,7 @@ public class CsarInstallerItCase {
 
     @Test
     public void testInstallTheCsarTca() throws SdcArtifactInstallerException, SdcToscaParserException,
-        CsarHandlerException, IOException, JSONException, InterruptedException {
+        CsarHandlerException, IOException, JSONException, InterruptedException, PolicyModelException {
         String generatedName = RandomStringUtils.randomAlphanumeric(5);
         CsarHandler csar = buildFakeCsarHandler(generatedName);
         csarInstaller.installTheCsar(csar);
diff --git a/src/test/java/org/onap/clamp/clds/sdc/controller/installer/CsarHandlerTest.java b/src/test/java/org/onap/clamp/clds/sdc/controller/installer/CsarHandlerTest.java
index bb4fd01f..544c8ca1 100644
--- a/src/test/java/org/onap/clamp/clds/sdc/controller/installer/CsarHandlerTest.java
+++ b/src/test/java/org/onap/clamp/clds/sdc/controller/installer/CsarHandlerTest.java
@@ -24,6 +24,7 @@
 package org.onap.clamp.clds.sdc.controller.installer;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
@@ -115,6 +116,13 @@ public class CsarHandlerTest {
         return resultArtifact;
     }
 
+    private IDistributionClientDownloadResult buildFakeSdcResultWithoutPolicyModel() throws IOException {
+        IDistributionClientDownloadResult resultArtifact = Mockito.mock(IDistributionClientDownloadResult.class);
+        Mockito.when(resultArtifact.getArtifactPayload()).thenReturn(
+            IOUtils.toByteArray(ResourceFileUtil.getResourceAsStream("example/sdc/service-without-policy.csar")));
+        return resultArtifact;
+    }
+
     @Test
     public void testSave()
         throws SdcArtifactInstallerException, SdcToscaParserException, CsarHandlerException, IOException {
@@ -148,6 +156,23 @@ public class CsarHandlerTest {
     }
 
     @Test
+    public void testLoadingOfPolicyModelFromCsar()
+        throws CsarHandlerException, IOException, SdcArtifactInstallerException, SdcToscaParserException {
+        CsarHandler csar = new CsarHandler(buildFakeSdcNotification(), "test-controller", "/tmp/csar-handler-tests");
+        csar.save(buildFakeSdcResut());
+        String policyModelYaml = csar.getPolicyModelYaml().get();
+        assertTrue(policyModelYaml.contains("tosca_simple_yaml_1_1"));
+    }
+
+    @Test
+    public void testLoadingOfNonexistentPolicyModelFromCsar()
+        throws CsarHandlerException, IOException, SdcArtifactInstallerException, SdcToscaParserException {
+        CsarHandler csar = new CsarHandler(buildFakeSdcNotification(), "test-controller", "/tmp/csar-handler-tests");
+        csar.save(buildFakeSdcResultWithoutPolicyModel());
+        assertFalse(csar.getPolicyModelYaml().isPresent());
+    }
+
+    @Test
     public void testDoubleSave()
         throws SdcArtifactInstallerException, SdcToscaParserException, CsarHandlerException, IOException {
         CsarHandler csar = new CsarHandler(buildFakeSdcNotification(), "test-controller", "/tmp/csar-handler-tests");
diff --git a/src/test/resources/example/sdc/service-without-policy.csar b/src/test/resources/example/sdc/service-without-policy.csar
new file mode 100644
index 00000000..20c4eef6
--- /dev/null
+++ b/src/test/resources/example/sdc/service-without-policy.csar