1 files changed, 93 insertions, 0 deletions
diff --git a/ECOMP-PAP-REST/src/main/java/org/openecomp/policy/pap/xacml/rest/service/MetricService.java b/ECOMP-PAP-REST/src/main/java/org/openecomp/policy/pap/xacml/rest/service/MetricService.java
new file mode 100644
index 000000000..21a630125
--- /dev/null
+++ b/ECOMP-PAP-REST/src/main/java/org/openecomp/policy/pap/xacml/rest/service/MetricService.java
@@ -0,0 +1,93 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ECOMP-PAP-REST
+ * ================================================================================
+ * Copyright (C) 2017 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.openecomp.policy.pap.xacml.rest.service;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.persistence.EntityManager;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.json.JSONObject;
+import org.openecomp.policy.common.logging.eelf.MessageCodes;
+import org.openecomp.policy.common.logging.eelf.PolicyLogger;
+import org.openecomp.policy.pap.xacml.rest.XACMLPapServlet;
+import org.openecomp.policy.xacml.api.XACMLErrorConstants;
+import org.openecomp.policy.xacml.api.pap.EcompPDPGroup;
+
+import com.att.research.xacml.api.pap.PDPPolicy;
+
+public class MetricService {
+
+	public static void doGetPolicyMetrics(HttpServletRequest request, HttpServletResponse response) {
+		Set<EcompPDPGroup> groups = new HashSet<EcompPDPGroup>();
+		try {
+			//get the count of policies on the PDP
+			if(XACMLPapServlet.getPAPEngine()!=null){
+				groups = XACMLPapServlet.getPAPEngine().getEcompPDPGroups();
+			}
+			int pdpCount = 0;
+			for (EcompPDPGroup group : groups) {
+				Set<PDPPolicy> policies = group.getPolicies();
+				pdpCount += policies.size();
+			}
+			//get the count of policies on the PAP
+			EntityManager em = null;
+			if(XACMLPapServlet.getEmf()!=null){
+				em = (EntityManager) XACMLPapServlet.getEmf().createEntityManager();
+			}
+			if (em==null){
+				PolicyLogger.error(MessageCodes.ERROR_DATA_ISSUE + " Error creating entity manager with persistence unit: " + XACMLPapServlet.getPersistenceUnit());
+				response.setStatus(HttpServletResponse.SC_BAD_REQUEST);								
+				response.addHeader("error", "Error creating entity manager with persistence unit");
+				return;
+			}
+			int papCount = ((Number) em.createNamedQuery("PolicyVersion.findAllCount").getSingleResult()).intValue();
+			em.close();
+			int totalCount = pdpCount + papCount;
+			//create json string for API response
+			JSONObject json = new JSONObject();
+			json.put("papCount", papCount);
+			json.put("pdpCount", pdpCount);
+			json.put("totalCount", totalCount);
+			if (pdpCount>0 && papCount>0 && totalCount>0) {
+				PolicyLogger.info("Metrics have been found on the Policy Engine for the number of policies on the PAP and PDP.");
+				response.setStatus(HttpServletResponse.SC_OK);
+				response.addHeader("successMapKey", "success");
+				response.addHeader("operation", "getMetrics");
+				response.addHeader("metrics", json.toString() );
+				return;
+			}else{
+				String message = "The policy count on the PAP and PDP is 0.  Please check the database and file system to correct this error.";
+				response.setStatus(HttpServletResponse.SC_BAD_REQUEST);								
+				response.addHeader("error", message);
+				return;
+			}
+		} catch (Exception e) {
+			String message = XACMLErrorConstants.ERROR_DATA_ISSUE + " Error Querying the Database: " + e.getMessage();
+			PolicyLogger.error(MessageCodes.ERROR_DATA_ISSUE, e, "XACMLPapServlet", " Error Querying the Database.");
+			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);								
+			response.addHeader("error", message);
+			return;			
+		}
+	}
+
+}