applications/monitoring/src/main/java/org/onap/policy/xacml/pdp/application/monitoring/MonitoringPdpApplication.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP
   4  * ================================================================================
   5  * Copyright (C) 2019-2020 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  *
  19  * SPDX-License-Identifier: Apache-2.0
  20  * ============LICENSE_END=========================================================
  21  */
  22
  23 package org.onap.policy.xacml.pdp.application.monitoring;
  24
  25 import com.att.research.xacml.api.Request;
  26 import com.att.research.xacml.api.Response;
  27 import java.util.ArrayList;
  28 import java.util.Arrays;
  29 import java.util.List;
  30 import java.util.Map;
  31 import java.util.Map.Entry;
  32 import org.apache.commons.lang3.tuple.Pair;
  33 import org.onap.policy.models.decisions.concepts.DecisionRequest;
  34 import org.onap.policy.models.decisions.concepts.DecisionResponse;
  35 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyTypeIdentifier;
  36 import org.onap.policy.pdp.xacml.application.common.ToscaPolicyTranslator;
  37 import org.onap.policy.pdp.xacml.application.common.std.StdCombinedPolicyResultsTranslator;
  38 import org.onap.policy.pdp.xacml.application.common.std.StdXacmlApplicationServiceProvider;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 /**
  43  * This is the engine class that manages the instance of the XACML PDP engine.
  44  *
  45  * <p>It is responsible for initializing it and shutting it down properly in a thread-safe manner.
  46  *
  47  *
  48  * @author pameladragosh
  49  *
  50  */
  51 public class MonitoringPdpApplication extends StdXacmlApplicationServiceProvider {
  52     private static final Logger LOGGER = LoggerFactory.getLogger(MonitoringPdpApplication.class);
  53
  54     public static final String ONAP_MONITORING_BASE_POLICY_TYPE = "onap.Monitoring";
  55     public static final String ONAP_MONITORING_CDAP = "onap.policies.monitoring.cdap.tca.hi.lo.app";
  56     public static final String ONAP_MONITORING_APPSERVER =
  57             "onap.policies.monitoring.dcaegen2.collectors.datafile.datafile-app-server";
  58     public static final String ONAP_MONITORING_SONHANDLER = "onap.policies.monitoring.docker.sonhandler.app";
  59     public static final String ONAP_MONITORING_DERIVED_POLICY_TYPE = "onap.policies.monitoring.";
  60
  61     public static final String VERSION_100 = "1.0.0";
  62
  63     private StdCombinedPolicyResultsTranslator translator = new StdCombinedPolicyResultsTranslator();
  64     private List<ToscaPolicyTypeIdentifier> supportedPolicyTypes = new ArrayList<>();
  65
  66     /**
  67      * Constructor.
  68      */
  69     public MonitoringPdpApplication() {
  70         //
  71         // By default this supports just Monitoring policy types
  72         //
  73         supportedPolicyTypes.add(new ToscaPolicyTypeIdentifier(ONAP_MONITORING_BASE_POLICY_TYPE, VERSION_100));
  74         supportedPolicyTypes.add(new ToscaPolicyTypeIdentifier(ONAP_MONITORING_CDAP, VERSION_100));
  75         supportedPolicyTypes.add(new ToscaPolicyTypeIdentifier(ONAP_MONITORING_APPSERVER, VERSION_100));
  76         supportedPolicyTypes.add(new ToscaPolicyTypeIdentifier(ONAP_MONITORING_SONHANDLER, VERSION_100));
  77     }
  78
  79     @Override
  80     public String applicationName() {
  81         return "monitoring";
  82     }
  83
  84     @Override
  85     public List<String> actionDecisionsSupported() {
  86         return Arrays.asList("configure");
  87     }
  88
  89     @Override
  90     public synchronized List<ToscaPolicyTypeIdentifier> supportedPolicyTypes() {
  91         return supportedPolicyTypes;
  92     }
  93
  94     @Override
  95     public boolean canSupportPolicyType(ToscaPolicyTypeIdentifier policyTypeId) {
  96         //
  97         // For Monitoring, we will attempt to support all versions
  98         // of the policy type. Since we are only packaging a decision
  99         // back with a JSON payload of the property contents.
 100         //
 101         return (policyTypeId.getName().equals(ONAP_MONITORING_BASE_POLICY_TYPE)
 102                 || policyTypeId.getName().equals(ONAP_MONITORING_CDAP)
 103                 || policyTypeId.getName().equals(ONAP_MONITORING_APPSERVER)
 104                 || policyTypeId.getName().equals(ONAP_MONITORING_SONHANDLER)
 105                 || policyTypeId.getName().startsWith(ONAP_MONITORING_DERIVED_POLICY_TYPE));
 106     }
 107
 108     @Override
 109     public Pair<DecisionResponse, Response> makeDecision(DecisionRequest request,
 110             Map<String, String[]> requestQueryParams) {
 111         //
 112         // Convert to a XacmlRequest
 113         //
 114         Request xacmlRequest = this.getTranslator().convertRequest(request);
 115         //
 116         // Now get a decision
 117         //
 118         Response xacmlResponse = this.xacmlDecision(xacmlRequest);
 119         //
 120         // Convert to a DecisionResponse
 121         //
 122         DecisionResponse decisionResponse = this.getTranslator().convertResponse(xacmlResponse);
 123         //
 124         // Abbreviate results if needed
 125         //
 126         if (checkAbbreviateResults(requestQueryParams) && decisionResponse.getPolicies() != null) {
 127             LOGGER.info("Abbreviating decision results {}", decisionResponse);
 128             for (Entry<String, Object> entry : decisionResponse.getPolicies().entrySet()) {
 129                 //
 130                 // DecisionResponse policies will always be a map
 131                 //
 132                 @SuppressWarnings("unchecked")
 133                 Map<String, Object> policy = (Map<String, Object>) entry.getValue();
 134                 policy.remove("type_version");
 135                 policy.remove("properties");
 136                 policy.remove("name");
 137                 policy.remove("version");
 138             }
 139         }
 140         return Pair.of(decisionResponse, xacmlResponse);
 141     }
 142
 143     @Override
 144     protected ToscaPolicyTranslator getTranslator(String type) {
 145         return translator;
 146     }
 147
 148     /**
 149      * Checks the query parameters to determine whether the decision results should be abbreviated.
 150      *
 151      * @param queryParams - http request query parameters
 152      */
 153     private boolean checkAbbreviateResults(Map<String, String[]> queryParams) {
 154         if (queryParams != null && !queryParams.isEmpty()) {
 155             // Check if query params contains "abbrev" flag
 156             if (queryParams.containsKey("abbrev")) {
 157                 return Arrays.asList(queryParams.get("abbrev")).contains("true");
 158             } else {
 159                 LOGGER.info("Unsupported query param for Monitoring application: {}", queryParams);
 160                 return false;
 161             }
 162         }
 163         LOGGER.info("Query parameters empty");
 164         return false;
 165     }
 166 }