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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019-2021 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.pdp.xacml.application.common;
import jakarta.ws.rs.core.Response;
import java.net.HttpURLConnection;
import org.onap.policy.common.endpoints.http.client.HttpClient;
import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Methods to access policy-api via REST service calls.
*/
public class PolicyApiCaller {
private static Logger logger = LoggerFactory.getLogger(PolicyApiCaller.class);
private static final String POLICY_TYPE_URI = "/policy/api/v1/policytypes/";
private static final String POLICY_TYPE_VERSION_URI = "/versions/";
private final HttpClient httpClient;
/**
* Constructs the object.
*
* @param httpClient API REST client
*/
public PolicyApiCaller(HttpClient httpClient) {
this.httpClient = httpClient;
}
/**
* Gets a policy type from policy-api.
*
* @param type policy type of interest
* @return the desired policy type
* @throws PolicyApiException if an error occurs
*/
public ToscaServiceTemplate getPolicyType(ToscaConceptIdentifier type) throws PolicyApiException {
try {
Response resp = httpClient
.get(POLICY_TYPE_URI + type.getName() + POLICY_TYPE_VERSION_URI + type.getVersion());
switch (resp.getStatus()) {
case HttpURLConnection.HTTP_OK:
return resp.readEntity(ToscaServiceTemplate.class);
case HttpURLConnection.HTTP_NOT_FOUND:
logger.warn("policy-api not found {}", resp);
throw new NotFoundException(type.toString());
default:
logger.warn("policy-api request error {}", resp);
throw new PolicyApiException(type.toString());
}
} catch (RuntimeException e) {
logger.warn("policy-api connection error, client info: {} ", httpClient);
throw new PolicyApiException(type.toString(), e);
}
}
}
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