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

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP-PAP-REST
   4  * ================================================================================
   5  * Copyright (C) 2017-2019 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
  21 package org.onap.policy.pap.xacml.rest.handler;
  22
  23 import com.att.research.xacml.util.XACMLProperties;
  24
  25 import java.io.IOException;
  26 import java.util.HashMap;
  27
  28 import javax.servlet.ServletException;
  29 import javax.servlet.http.HttpServletRequest;
  30 import javax.servlet.http.HttpServletResponse;
  31 import javax.xml.parsers.ParserConfigurationException;
  32
  33 import org.onap.policy.common.logging.eelf.PolicyLogger;
  34 import org.onap.policy.common.logging.flexlogger.FlexLogger;
  35 import org.onap.policy.common.logging.flexlogger.Logger;
  36 import org.onap.policy.pap.xacml.rest.policycontroller.PolicyCreation;
  37 import org.onap.policy.rest.adapter.PolicyRestAdapter;
  38 import org.onap.policy.utils.PolicyUtils;
  39 import org.onap.policy.xacml.std.pap.StdPAPPolicy;
  40 import org.xml.sax.SAXException;
  41
  42 public class SavePolicyHandler {
  43     private static final Logger logger = FlexLogger.getLogger(SavePolicyHandler.class);
  44     private HashMap<String, String> ErrorHeaders = null;
  45
  46     public void doPolicyAPIPut(HttpServletRequest request, HttpServletResponse response) throws IOException {
  47         String operation = request.getParameter("operation");
  48         String policyType = request.getParameter("policyType");
  49         String apiflag = request.getParameter("apiflag");
  50         PolicyCreation creation = new PolicyCreation();
  51         if (policyType != null) {
  52             PolicyRestAdapter policyAdapter = new PolicyRestAdapter();
  53             if ("update".equalsIgnoreCase(operation)) {
  54                 policyAdapter.setEditPolicy(true);
  55             } else {
  56                 policyAdapter.setEditPolicy(false);
  57             }
  58
  59             // get the request content into a String
  60             String json = null;
  61             // read the inputStream into a buffer (trick found online scans entire input looking for end-of-file)
  62             java.util.Scanner scanner = new java.util.Scanner(request.getInputStream());
  63             scanner.useDelimiter("\\A");
  64             json = scanner.hasNext() ? scanner.next() : "";
  65             scanner.close();
  66
  67             if (policyAdapter.isEditPolicy()) {
  68                 PolicyLogger.info("SavePolicyHandler: JSON request from API to update a policy: " + json);
  69             } else {
  70                 PolicyLogger.info("SavePolicyHandler: JSON request from API to create a policy: " + json);
  71             }
  72
  73             // convert Object sent as JSON into local object
  74             StdPAPPolicy policy = PolicyUtils.jsonStringToObject(json, StdPAPPolicy.class);
  75             // Set policyAdapter values including parentPath (Common to all policy types)
  76             try {
  77                 PolicyLogger.info("SavePolicyHandler: Setting parameter values to PolicyAdapter");
  78                 policyAdapter = setDataToPolicyAdapter(policy, policyType, apiflag);
  79
  80                 if (!extendedPolicyOptions(policyAdapter, response)) {
  81                     creation.savePolicy(policyAdapter, response);
  82                 }
  83                 if ("update".equalsIgnoreCase(operation)) {
  84                     response.addHeader("operation", "update");
  85                 } else {
  86                     response.addHeader("operation", "create");
  87                 }
  88             } catch (Exception e1) {
  89                 logger.error("Could not set data to policy adapter " + e1.getMessage(), e1);
  90             }
  91         }
  92     }
  93
  94     private PolicyRestAdapter setDataToPolicyAdapter(StdPAPPolicy policy, String policyType, String apiflag)
  95             throws ParserConfigurationException, ServletException, SAXException, IOException {
  96         PolicyRestAdapter policyAdapter = new PolicyRestAdapter();
  97         policyAdapter.setApiflag(apiflag);
  98         /*
  99          * set policy adapter values for Building JSON object containing policy data
 100          */
 101         // Common among policy types
 102         policyAdapter.setPolicyName(policy.getPolicyName());
 103         policyAdapter.setPolicyDescription(policy.getPolicyDescription());
 104         policyAdapter.setOnapName(policy.getOnapName()); // Config Base and Decision Policies
 105         policyAdapter.setRuleCombiningAlgId("urn:oasis:names:tc:xacml:3.0:rule-combining-algorithm:permit-overrides");
 106
 107         policyAdapter.setPolicyType(policyType);
 108         policyAdapter.setDynamicFieldConfigAttributes(policy.getDynamicFieldConfigAttributes());
 109         policyAdapter.setEditPolicy(policy.isEditPolicy());
 110         // Config Specific
 111         policyAdapter.setConfigName(policy.getConfigName()); // Base and Firewall
 112         policyAdapter.setConfigBodyData(policy.getConfigBodyData()); // Base
 113         policyAdapter.setConfigType((policy.getConfigType() != null) ? policy.getConfigType().toUpperCase() : null); // Base
 114         policyAdapter.setJsonBody(policy.getJsonBody()); // Firewall, ClosedLoop
 115         policyAdapter.setConfigPolicyType(policy.getConfigPolicyType());
 116         policyAdapter.setDraft(policy.isDraft()); // ClosedLoop_Fault
 117         policyAdapter.setServiceType(policy.getServiceType()); // ClosedLoop_PM
 118         policyAdapter.setUuid(policy.getUuid()); // Micro Service
 119         policyAdapter.setLocation(policy.getMsLocation()); // Micro Service
 120         policyAdapter.setPriority(policy.getPriority()); // Micro Service
 121         policyAdapter.setPolicyScope(policy.getDomainDir());
 122         policyAdapter.setRiskType(policy.getRiskType()); // Safe Policy Attributes
 123         policyAdapter.setRiskLevel(policy.getRiskLevel());// Safe Policy Attributes
 124         policyAdapter.setGuard(policy.getGuard());// Safe Policy Attributes
 125         policyAdapter.setTtlDate(policy.getTTLDate());// Safe Policy Attributes
 126         policyAdapter.setBrmsParamBody(policy.getDrlRuleAndUIParams());
 127         policyAdapter.setBrmsDependency(policy.getBrmsDependency()); // BRMS Policies.
 128         policyAdapter.setBrmsController(policy.getBrmsController()); // BRMS Policies.
 129         // Action Policy Specific
 130         policyAdapter.setActionAttribute(policy.getActionAttribute()); // comboDictValue
 131         policyAdapter.setActionPerformer(policy.getActionPerformer());
 132         policyAdapter.setDynamicRuleAlgorithmLabels(policy.getDynamicRuleAlgorithmLabels());
 133         policyAdapter.setDynamicRuleAlgorithmCombo(policy.getDynamicRuleAlgorithmCombo());
 134         policyAdapter.setDynamicRuleAlgorithmField1(policy.getDynamicRuleAlgorithmField1());
 135         policyAdapter.setDynamicRuleAlgorithmField2(policy.getDynamicRuleAlgorithmField2());
 136         // Decision Policy Specific
 137         policyAdapter.setDynamicSettingsMap(policy.getDynamicSettingsMap());
 138         policyAdapter.setRuleProvider(policy.getProviderComboBox());
 139         policyAdapter.setDomainDir(policyAdapter.getPolicyScope());
 140         policyAdapter.setRainydayMap(policy.getTreatments());
 141         policyAdapter.setRawXacmlPolicy(policy.getRawXacmlPolicy());
 142
 143         return policyAdapter;
 144     }
 145
 146     public boolean extendedPolicyOptions(PolicyRestAdapter policyAdapter, HttpServletResponse response) {
 147         return false;
 148     }
 149
 150     public void addErrorHeader(String key, String value) {
 151         if (ErrorHeaders == null) {
 152             ErrorHeaders = new HashMap<>();
 153         }
 154         ErrorHeaders.put(key, value);
 155     }
 156
 157     public static SavePolicyHandler getInstance() {
 158         try {
 159             Class<?> savePolicyHandler = Class.forName(
 160                     XACMLProperties.getProperty("savePolicy.impl.className", SavePolicyHandler.class.getName()));
 161             SavePolicyHandler instance = (SavePolicyHandler) savePolicyHandler.newInstance();
 162             return instance;
 163         } catch (Exception e) {
 164             logger.error(e.getMessage(), e);
 165         }
 166         return null;
 167     }
 168 }