Match up ControlLoopParams against ToscaPolicy

Change-Id: Ia23a5b90b452bcafe2a8aa660598697ebfb07431
Issue-ID: POLICY-1691
Signed-off-by: jhh <jorge.hernandez-herrero@att.com>

3 files changed, 145 insertions, 0 deletions

diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/utils/ControlLoopUtils.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/utils/ControlLoopUtils.java
new file mode 100644
index 000000000..8b7876c71
--- /dev/null
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/utils/ControlLoopUtils.java
@@ -0,0 +1,78 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 AT&T 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.policy.controlloop.utils;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
+import org.apache.commons.lang3.StringUtils;
+import org.onap.policy.controlloop.ControlLoopException;
+import org.onap.policy.controlloop.params.ControlLoopParams;
+import org.onap.policy.controlloop.processor.ControlLoopProcessor;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Control Loop Utils.
+ */
+public class ControlLoopUtils {
+
+    public static final Logger logger = LoggerFactory.getLogger(ControlLoopUtils.class);
+    public static final String TOSCA_POLICY_PROPERTY_CONTENT = "content";
+
+    /**
+     * Get a Control Loop Parameters object from a Tosca Policy.
+     */
+    public static ControlLoopParams toControlLoopParams(ToscaPolicy policy) {
+
+        // TODO: ControlLoopParams class should be moved to this repo and take Tosca Policy in a constructor.
+
+        /* No exceptions are thrown to keep the DRL simpler */
+
+        try {
+            if (policy == null || policy.getProperties() == null
+                || policy.getProperties().get(TOSCA_POLICY_PROPERTY_CONTENT) == null) {
+                logger.error("Invalid Policy: {}", policy);
+                return null;
+            }
+
+            String encodedPolicy = policy.getProperties().get(TOSCA_POLICY_PROPERTY_CONTENT).toString();
+            String decodedPolicy = URLDecoder.decode(encodedPolicy, "UTF-8");
+
+            ControlLoopProcessor controlLoopProcessor = new ControlLoopProcessor(decodedPolicy);
+            if (controlLoopProcessor.getControlLoop() == null
+                || StringUtils.isEmpty(controlLoopProcessor.getControlLoop().getControlLoopName())) {
+                return null;
+            }
+
+            ControlLoopParams controlLoopParams = new ControlLoopParams();
+            controlLoopParams.setClosedLoopControlName(controlLoopProcessor.getControlLoop().getControlLoopName());
+            controlLoopParams.setControlLoopYaml(encodedPolicy);
+            controlLoopParams.setPolicyScope(policy.getType() + ":" + policy.getTypeVersion());
+            controlLoopParams.setPolicyName(policy.getName());
+            controlLoopParams.setPolicyVersion(policy.getVersion());
+
+            return controlLoopParams;
+        } catch (ControlLoopException | RuntimeException | UnsupportedEncodingException e) {
+            logger.error("Invalid Policy because of {}: {}", e.getMessage(), policy, e);
+            return null;
+        }
+    }
+
+}
diff --git a/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/utils/ControlLoopUtilsTest.java b/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/utils/ControlLoopUtilsTest.java
new file mode 100644
index 000000000..72e51bae9
--- /dev/null
+++ b/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/utils/ControlLoopUtilsTest.java
@@ -0,0 +1,58 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 AT&T 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.policy.controlloop.utils;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Map;
+import org.junit.Test;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardCoder;
+import org.onap.policy.controlloop.params.ControlLoopParams;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
+
+public class ControlLoopUtilsTest {
+
+    @Test
+    public void toControlLoopParams() throws IOException, CoderException {
+        String policy =
+            new String(Files.readAllBytes(Paths.get("src/test/resources/tosca-policy-operational-restart.json")));
+
+        ToscaPolicy toscaPolicy = new StandardCoder().decode(policy, ToscaPolicy.class);
+        ControlLoopParams params = ControlLoopUtils.toControlLoopParams(toscaPolicy);
+        assertNotNull(params);
+        assertNotNull(params.getClosedLoopControlName());
+        assertEquals(toscaPolicy.getProperties().get("content"), params.getControlLoopYaml());
+        assertEquals(toscaPolicy.getName(), params.getPolicyName());
+        assertEquals(toscaPolicy.getVersion(), params.getPolicyVersion());
+        assertEquals(toscaPolicy.getType() + ":" + toscaPolicy.getVersion(), params.getPolicyScope());
+
+        assertNull(ControlLoopUtils.toControlLoopParams(null));
+
+        Map<String, Object> properties = toscaPolicy.getProperties();
+        toscaPolicy.setProperties(null);
+        assertNull(ControlLoopUtils.toControlLoopParams(toscaPolicy));
+        toscaPolicy.setProperties(properties);
+    }
+}
\ No newline at end of file
diff --git a/controlloop/common/eventmanager/src/test/resources/tosca-policy-operational-restart.json b/controlloop/common/eventmanager/src/test/resources/tosca-policy-operational-restart.json
new file mode 100644
index 000000000..1b17d2cf5
--- /dev/null
+++ b/controlloop/common/eventmanager/src/test/resources/tosca-policy-operational-restart.json
@@ -0,0 +1,9 @@
+{
+  "type": "onap.policies.controlloop.Operational",
+  "type_version": "1.0.0",
+  "properties": {
+    "content": "controlLoop%3A%0D%0A++version%3A+2.0.0%0D%0A++controlLoopName%3A+ControlLoop-vCPE-48f0c2c3-a172-4192-9ae3-052274181b6e%0D%0A++trigger_policy%3A+unique-policy-id-1-restart%0D%0A++timeout%3A+3600%0D%0A++abatement%3A+true%0D%0A+%0D%0Apolicies%3A%0D%0A++-+id%3A+unique-policy-id-1-restart%0D%0A++++name%3A+Restart+the+VM%0D%0A++++description%3A%0D%0A++++actor%3A+APPC%0D%0A++++recipe%3A+Restart%0D%0A++++target%3A%0D%0A++++++type%3A+VM%0D%0A++++retry%3A+3%0D%0A++++timeout%3A+1200%0D%0A++++success%3A+final_success%0D%0A++++failure%3A+final_failure%0D%0A++++failure_timeout%3A+final_failure_timeout%0D%0A++++failure_retries%3A+final_failure_retries%0D%0A++++failure_exception%3A+final_failure_exception%0D%0A++++failure_guard%3A+final_failure_guard"
+  },
+  "name": "operational.restart",
+  "version": "1.0.0"
+}