ECOMP-PAP-REST/src/main/java/org/openecomp/policy/pap/xacml/rest/handler/SavePolicyHandler.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ECOMP-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.openecomp.policy.pap.xacml.rest.handler;
  21
  22 import java.io.IOException;
  23 import java.util.HashMap;
  24
  25 import javax.servlet.ServletException;
  26 import javax.servlet.http.HttpServletRequest;
  27 import javax.servlet.http.HttpServletResponse;
  28 import javax.xml.parsers.ParserConfigurationException;
  29
  30 import org.openecomp.policy.common.logging.eelf.PolicyLogger;
  31 import org.openecomp.policy.pap.xacml.rest.XACMLPapServlet;
  32 import org.openecomp.policy.pap.xacml.rest.policycontroller.PolicyCreation;
  33 import org.openecomp.policy.rest.adapter.PolicyRestAdapter;
  34 import org.openecomp.policy.utils.PolicyUtils;
  35 import org.openecomp.policy.xacml.api.XACMLErrorConstants;
  36 import org.openecomp.policy.xacml.std.pap.StdPAPPolicy;
  37 import org.xml.sax.SAXException;
  38
  39 import com.att.research.xacml.util.XACMLProperties;
  40
  41 public class SavePolicyHandler {
  42         private HashMap<String, String> ErrorHeaders = null;
  43
  44         public void doPolicyAPIPut(HttpServletRequest request, HttpServletResponse response) throws IOException {
  45                 String operation = request.getParameter("operation");
  46                 String policyType = request.getParameter("policyType");
  47                 String apiflag = request.getParameter("apiflag");
  48                 PolicyCreation creation = new PolicyCreation();
  49         if ( policyType != null ) {
  50                         PolicyRestAdapter policyAdapter = new PolicyRestAdapter();
  51                         if("update".equalsIgnoreCase(operation)){
  52                                 policyAdapter.setEditPolicy(true);
  53                         }else{
  54                                 policyAdapter.setEditPolicy(false);
  55                         }
  56
  57                         // get the request content into a String
  58                         String json = null;
  59                         // read the inputStream into a buffer (trick found online scans entire input looking for end-of-file)
  60                         java.util.Scanner scanner = new java.util.Scanner(request.getInputStream());
  61                         scanner.useDelimiter("\\A");
  62                         json =  scanner.hasNext() ? scanner.next() : "";
  63                         scanner.close();
  64                         PolicyLogger.info("JSON request from API: " + json);
  65                         // convert Object sent as JSON into local object
  66                         StdPAPPolicy policy = PolicyUtils.jsonStringToObject(json, StdPAPPolicy.class);
  67                         //Set policyAdapter values including parentPath (Common to all policy types)
  68                         try {
  69                 policyAdapter = setDataToPolicyAdapter(policy, policyType, apiflag);
  70
  71                 if(!extendedPolicyOptions(policyAdapter, response)){
  72                         creation.savePolicy(policyAdapter, response);
  73                 }
  74                 if ("update".equalsIgnoreCase(operation)) {
  75                                         response.addHeader("operation",  "update");
  76                                 } else {
  77                                         response.addHeader("operation", "create");
  78                                 }
  79                         } catch (Exception e1) {
  80                                 PolicyLogger.error(XACMLErrorConstants.ERROR_UNKNOWN +
  81                                                 "Could not set data to policy adapter "+ e1.getMessage());
  82                         }
  83         }
  84         }
  85
  86         private PolicyRestAdapter setDataToPolicyAdapter(StdPAPPolicy policy, String policyType, String apiflag) throws ParserConfigurationException, ServletException, SAXException, IOException{
  87                 PolicyRestAdapter policyAdapter = new PolicyRestAdapter();
  88                 policyAdapter.setApiflag(apiflag);
  89                 /*
  90                  * set policy adapter values for Building JSON object containing policy data
  91                  */
  92                 //Common among policy types
  93                 policyAdapter.setPolicyName(policy.getPolicyName());
  94                 policyAdapter.setPolicyDescription(policy.getPolicyDescription());
  95                 policyAdapter.setEcompName(policy.getEcompName()); //Config Base and Decision Policies
  96                 policyAdapter.setRuleCombiningAlgId("urn:oasis:names:tc:xacml:3.0:rule-combining-algorithm:permit-overrides");
  97
  98                 policyAdapter.setPolicyType(policyType);
  99                 policyAdapter.setDynamicFieldConfigAttributes(policy.getDynamicFieldConfigAttributes());
 100                 policyAdapter.setEditPolicy(policy.isEditPolicy());
 101                 policyAdapter.setEntityManagerFactory(XACMLPapServlet.getEmf());
 102                 //Config Specific
 103                 policyAdapter.setConfigName(policy.getConfigName());  //Base and Firewall
 104                 policyAdapter.setConfigBodyData(policy.getConfigBodyData()); //Base
 105                 policyAdapter.setConfigType((policy.getConfigType()!=null) ? policy.getConfigType().toUpperCase(): null);  //Base
 106                 policyAdapter.setJsonBody(policy.getJsonBody()); //Firewall, ClosedLoop
 107                 policyAdapter.setConfigPolicyType(policy.getConfigPolicyType());
 108                 policyAdapter.setDraft(policy.isDraft()); //ClosedLoop_Fault
 109                 policyAdapter.setServiceType(policy.getServiceType()); //ClosedLoop_PM
 110                 policyAdapter.setUuid(policy.getUuid()); //Micro Service
 111                 policyAdapter.setLocation(policy.getMsLocation()); //Micro Service
 112                 policyAdapter.setPriority(policy.getPriority()); //Micro Service
 113                 policyAdapter.setPolicyScope(policy.getDomainDir());
 114                 policyAdapter.setRiskType(policy.getRiskType()); //Safe Policy Attributes
 115                 policyAdapter.setRiskLevel(policy.getRiskLevel());//Safe Policy Attributes
 116                 policyAdapter.setGuard(policy.getGuard());//Safe Policy Attributes
 117                 policyAdapter.setTtlDate(policy.getTTLDate());//Safe Policy Attributes
 118                 policyAdapter.setBrmsParamBody(policy.getDrlRuleAndUIParams());
 119         policyAdapter.setBrmsDependency(policy.getBrmsDependency()); // BRMS Policies.
 120         policyAdapter.setBrmsController(policy.getBrmsController()); // BRMS Policies.
 121                 //Action Policy Specific
 122                 policyAdapter.setActionAttribute(policy.getActionAttribute());  //comboDictValue
 123                 policyAdapter.setActionPerformer(policy.getActionPerformer());
 124                 policyAdapter.setDynamicRuleAlgorithmLabels(policy.getDynamicRuleAlgorithmLabels());
 125                 policyAdapter.setDynamicRuleAlgorithmCombo(policy.getDynamicRuleAlgorithmCombo());
 126                 policyAdapter.setDynamicRuleAlgorithmField1(policy.getDynamicRuleAlgorithmField1());
 127                 policyAdapter.setDynamicRuleAlgorithmField2(policy.getDynamicRuleAlgorithmField2());
 128                 //Decision Policy Specific
 129                 policyAdapter.setDynamicSettingsMap(policy.getDynamicSettingsMap());
 130                 policyAdapter.setRuleProvider(policy.getProviderComboBox());
 131                 policyAdapter.setDomainDir(policyAdapter.getPolicyScope());
 132                 policyAdapter.setDomain(policyAdapter.getPolicyScope());
 133                 return policyAdapter;
 134         }
 135
 136         public boolean extendedPolicyOptions(PolicyRestAdapter policyAdapter, HttpServletResponse response){
 137                 return false;
 138         }
 139
 140         public void addErrorHeader(String key, String value){
 141                 if(ErrorHeaders==null){
 142                         ErrorHeaders= new HashMap<>();
 143                 }
 144                 ErrorHeaders.put(key, value);
 145         }
 146
 147         public static SavePolicyHandler getInstance() {
 148                 try {
 149                         Class<?> savePolicyHandler = Class.forName(XACMLProperties.getProperty("savePolicy.impl.className", SavePolicyHandler.class.getName()));
 150                         SavePolicyHandler instance = (SavePolicyHandler) savePolicyHandler.newInstance();
 151                         return instance;
 152                 } catch (Exception e) {
 153                         PolicyLogger.error(e.getMessage());
 154                 }
 155                 return null;
 156         }
 157 }