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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019-2020 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2021-2023 Nordix Foundation.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.pdpx.main.rest;
import com.att.research.xacml.api.Request;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.ws.rs.Consumes;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.HeaderParam;
import jakarta.ws.rs.POST;
import jakarta.ws.rs.Path;
import jakarta.ws.rs.Produces;
import jakarta.ws.rs.core.Context;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.Response;
import jakarta.ws.rs.core.Response.ResponseBuilder;
import java.util.UUID;
import org.onap.policy.models.decisions.concepts.DecisionException;
import org.onap.policy.models.decisions.concepts.DecisionRequest;
import org.onap.policy.pdpx.main.rest.provider.DecisionProvider;
import org.onap.policy.pdpx.main.rest.provider.HealthCheckProvider;
import org.onap.policy.pdpx.main.rest.provider.StatisticsProvider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Class to provide xacml pdp REST services.
*
*/
@Path("/policy/pdpx/v1")
@Produces({MediaType.APPLICATION_JSON, XacmlPdpRestController.APPLICATION_YAML})
@Consumes({MediaType.APPLICATION_JSON, XacmlPdpRestController.APPLICATION_YAML})
public class XacmlPdpRestController implements HealthcheckApi, StatisticsApi, DecisionApi, XacmlApi {
private static final Logger LOGGER = LoggerFactory.getLogger(XacmlPdpRestController.class);
public static final String APPLICATION_YAML = "application/yaml";
public static final String APPLICATION_XACML_JSON = "application/xacml+json";
public static final String APPLICATION_XACML_XML = "application/xacml+xml";
@Context private HttpServletRequest request;
@GET
@Path("/healthcheck")
@Override
public Response healthcheck(
@HeaderParam("X-ONAP-RequestID") UUID requestId) {
return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)
.entity(new HealthCheckProvider().performHealthCheck()).build();
}
@GET
@Path("/statistics")
@Override
public Response statistics(
@HeaderParam("X-ONAP-RequestID") UUID requestId) {
return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)
.entity(new StatisticsProvider().fetchCurrentStatistics()).build();
}
@POST
@Path("/decision")
@Override
public Response decision(DecisionRequest body, @HeaderParam("X-ONAP-RequestID") UUID requestId) {
return decision(body, requestId, request);
}
/**
* Our decision entry point.
*
* @param body Should be a DecisionRequest object
* @param requestId Unique request id
* @return DecisionResponse or ErrorResponse object
*/
private Response decision(DecisionRequest body,
@HeaderParam("X-ONAP-RequestID") UUID requestId,
@Context HttpServletRequest request) {
try {
return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)
.entity(new DecisionProvider().fetchDecision(body, request.getParameterMap())).build();
} catch (DecisionException e) {
LOGGER.error("Decision exception", e);
XacmlPdpStatisticsManager.getCurrent().updateErrorCount();
return addLoggingHeaders(
addVersionControlHeaders(Response.status((e.getErrorResponse().getResponseCode()))), requestId)
.entity(e.getErrorResponse()).build();
}
}
/**
* Our native decision entry point.
*
* @param body Should be an Xacml Request object
* @param requestId Unique request id
* @return Xacml Response or ErrorResponse object
*/
@POST
@Path("/xacml")
@Produces({XacmlPdpRestController.APPLICATION_XACML_JSON, XacmlPdpRestController.APPLICATION_XACML_XML})
@Consumes({XacmlPdpRestController.APPLICATION_XACML_JSON, XacmlPdpRestController.APPLICATION_XACML_XML})
@Override
public Response xacml(Request body,
@HeaderParam("X-ONAP-RequestID") UUID requestId) {
try {
return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)
.entity(new DecisionProvider().fetchNativeDecision(body)).build();
} catch (DecisionException e) {
LOGGER.error("Decision exception", e);
XacmlPdpStatisticsManager.getCurrent().updateErrorCount();
return addLoggingHeaders(
addVersionControlHeaders(Response.status((e.getErrorResponse().getResponseCode()))), requestId)
.entity(e.getErrorResponse()).build();
}
}
private ResponseBuilder addVersionControlHeaders(ResponseBuilder rb) {
return rb.header("X-MinorVersion", "0").header("X-PatchVersion", "0").header("X-LatestVersion", "1.0.0");
}
private ResponseBuilder addLoggingHeaders(ResponseBuilder rb, UUID requestId) {
if (requestId == null) {
// Generate a random uuid if client does not embed requestId in rest request
return rb.header("X-ONAP-RequestID", UUID.randomUUID());
}
return rb.header("X-ONAP-RequestID", requestId);
}
}
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