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 javax.ws.rs.core.Response.Status;
25 import org.onap.policy.models.decisions.concepts.DecisionException;
26 import org.onap.policy.models.decisions.concepts.DecisionRequest;
27 import org.onap.policy.models.decisions.concepts.DecisionResponse;
28 import org.onap.policy.pdp.xacml.application.common.XacmlApplicationServiceProvider;
29 import org.onap.policy.pdpx.main.rest.XacmlPdpApplicationManager;
30 import org.slf4j.Logger;
31 import org.slf4j.LoggerFactory;
34 public class DecisionProvider {
35 private static final Logger LOGGER = LoggerFactory.getLogger(DecisionProvider.class);
38 * Retrieves the policy decision for the specified parameters.
41 * @return the Decision object
43 public DecisionResponse fetchDecision(DecisionRequest request) {
44 LOGGER.debug("Fetching decision {}", request);
46 // Find application for this decision
48 XacmlApplicationServiceProvider application = findApplication(request);
50 // Cannot find application for action
52 return application.makeDecision(request);
55 private XacmlApplicationServiceProvider findApplication(DecisionRequest request) {
56 XacmlApplicationServiceProvider application = XacmlPdpApplicationManager.findApplication(request);
57 if (application != null) {
60 throw new DecisionException(Status.BAD_REQUEST, "No application for action " + request.getAction());