ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/handler/PushPolicyHandler.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP-PAP-REST
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20 package org.onap.policy.pap.xacml.rest.handler;
  21
  22 import java.io.File;
  23 import java.net.URI;
  24 import java.util.List;
  25
  26 import javax.persistence.EntityManager;
  27 import javax.persistence.Query;
  28 import javax.servlet.http.HttpServletRequest;
  29 import javax.servlet.http.HttpServletResponse;
  30
  31 import org.onap.policy.common.logging.eelf.MessageCodes;
  32 import org.onap.policy.common.logging.eelf.PolicyLogger;
  33 import org.onap.policy.pap.xacml.rest.XACMLPapServlet;
  34 import org.onap.policy.rest.jpa.PolicyVersion;
  35 import org.onap.policy.xacml.api.pap.OnapPDPGroup;
  36 import org.onap.policy.xacml.std.pap.StdPDPPolicy;
  37 import org.onap.policy.common.logging.flexlogger.FlexLogger;
  38 import org.onap.policy.common.logging.flexlogger.Logger;
  39 import com.att.research.xacml.util.XACMLProperties;
  40
  41 public class PushPolicyHandler {
  42         private static final Logger logger = FlexLogger.getLogger(PushPolicyHandler.class);
  43         /*
  44          * Get Active Version.
  45          */
  46         public void getActiveVersion(HttpServletRequest request, HttpServletResponse response) {
  47                 EntityManager em = null;
  48                 if(XACMLPapServlet.getEmf()!=null){
  49                         em = (EntityManager) XACMLPapServlet.getEmf().createEntityManager();
  50                 }
  51                 if (em==null){
  52                         PolicyLogger.error(MessageCodes.ERROR_DATA_ISSUE + " Error creating entity manager with persistence unit: " + XACMLPapServlet.getPersistenceUnit());
  53                         return;
  54                 }
  55                 String policyScope = request.getParameter("policyScope");
  56                 String filePrefix = request.getParameter("filePrefix");
  57                 String policyName = request.getParameter("policyName");
  58
  59                 String pvName = policyScope + File.separator + filePrefix + policyName;
  60                 int activeVersion = 0;
  61
  62                 //Get the Active Version to use in the ID
  63                 em.getTransaction().begin();
  64                 Query query = em.createQuery("Select p from PolicyVersion p where p.policyName=:pname");
  65                 query.setParameter("pname", pvName);
  66
  67                 @SuppressWarnings("rawtypes")
  68                 List result = query.getResultList();
  69                 PolicyVersion versionEntity = null;
  70                 if (!result.isEmpty()) {
  71                         versionEntity = (PolicyVersion) result.get(0);
  72                         em.persist(versionEntity);
  73                         activeVersion = versionEntity.getActiveVersion();
  74                         em.getTransaction().commit();
  75                 } else {
  76                         PolicyLogger.debug("No PolicyVersion using policyName found");
  77                 }
  78
  79                 //clean up connection
  80                 em.close();
  81                 if (String.valueOf(activeVersion)!=null || !String.valueOf(activeVersion).equalsIgnoreCase("")) {
  82                         response.setStatus(HttpServletResponse.SC_OK);
  83                         response.addHeader("version", String.valueOf(activeVersion));
  84                 } else {
  85                         response.setStatus(HttpServletResponse.SC_NOT_FOUND);
  86                 }
  87         }
  88
  89         /*
  90          * Get Selected URI path.
  91          */
  92         public void getSelectedURI(HttpServletRequest request, HttpServletResponse response) {
  93                 String gitPath = request.getParameter("gitPath");
  94                 File file = new File(gitPath);
  95                 PolicyLogger.debug("The fileItem is : " + file.toString());
  96                 URI selectedURI = file.toURI();
  97                 String uri = selectedURI.toString();
  98                 if (!uri.equalsIgnoreCase("")) {
  99                         response.setStatus(HttpServletResponse.SC_OK);
 100                         response.addHeader("selectedURI", uri);
 101                 } else {
 102                         response.setStatus(HttpServletResponse.SC_NOT_FOUND);
 103                 }
 104         }
 105
 106         public boolean preSafetyCheck(StdPDPPolicy policy, String configHome){
 107                 return true;
 108         }
 109
 110         public boolean preSafetyCheck(OnapPDPGroup policy, String configHome){
 111                 return true;
 112         }
 113
 114         public static PushPolicyHandler getInstance() {
 115                 try {
 116                         Class<?> pushPolicyHandler = Class.forName(XACMLProperties.getProperty("pushPolicy.impl.className", PushPolicyHandler.class.getName()));
 117                         PushPolicyHandler instance = (PushPolicyHandler) pushPolicyHandler.newInstance();
 118                         return instance;
 119                 } catch (Exception e) {
 120                         logger.error(e.getMessage(),e);
 121                 }
 122                 return null;
 123         }
 124 }