2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.pdpx.main.rest.provider;
23 import com.att.research.xacml.api.Response;
24 import com.att.research.xacml.api.Result;
26 import org.apache.commons.lang3.tuple.Pair;
27 import org.onap.policy.models.decisions.concepts.DecisionException;
28 import org.onap.policy.models.decisions.concepts.DecisionRequest;
29 import org.onap.policy.models.decisions.concepts.DecisionResponse;
30 import org.onap.policy.pdp.xacml.application.common.XacmlApplicationServiceProvider;
31 import org.onap.policy.pdpx.main.rest.XacmlPdpApplicationManager;
32 import org.onap.policy.pdpx.main.rest.XacmlPdpStatisticsManager;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
37 public class DecisionProvider {
38 private static final Logger LOGGER = LoggerFactory.getLogger(DecisionProvider.class);
41 * Retrieves the policy decision for the specified parameters.
43 * @param request DecisionRequest
44 * @param queryParams Map of parameters
45 * @return DecisionResponse
47 public DecisionResponse fetchDecision(DecisionRequest request, Map<String, String[]> queryParams) {
48 LOGGER.debug("Fetching decision {}", request);
50 // Find application for this decision
52 XacmlApplicationServiceProvider application = findApplication(request);
54 // Found application for action
56 Pair<DecisionResponse, Response> decision = application.makeDecision(request, queryParams);
58 // Calculate statistics
60 this.calculateStatistic(decision.getValue());
62 // Return the decision
64 return decision.getKey();
67 private XacmlApplicationServiceProvider findApplication(DecisionRequest request) {
68 XacmlApplicationServiceProvider application = XacmlPdpApplicationManager.getCurrent().findApplication(request);
69 if (application != null) {
72 throw new DecisionException(javax.ws.rs.core.Response.Status.BAD_REQUEST,
73 "No application for action " + request.getAction());
76 private void calculateStatistic(Response xacmlResponse) {
78 for (Result result : xacmlResponse.getResults()) {
79 switch (result.getDecision()) {
81 XacmlPdpStatisticsManager.getCurrent().updatePermitDecisionsCount();
85 XacmlPdpStatisticsManager.getCurrent().updateDenyDecisionsCount();
89 case INDETERMINATE_DENY:
90 case INDETERMINATE_DENYPERMIT:
91 case INDETERMINATE_PERMIT:
92 XacmlPdpStatisticsManager.getCurrent().updateIndeterminantDecisionsCount();
96 XacmlPdpStatisticsManager.getCurrent().updateNotApplicableDecisionsCount();