2 * ============LICENSE_START=======================================================
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4 * ================================================================================
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5 * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
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6 * ================================================================================
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7 * Licensed under the Apache License, Version 2.0 (the "License");
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8 * you may not use this file except in compliance with the License.
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9 * You may obtain a copy of the License at
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11 * http://www.apache.org/licenses/LICENSE-2.0
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13 * Unless required by applicable law or agreed to in writing, software
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14 * distributed under the License is distributed on an "AS IS" BASIS,
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15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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16 * See the License for the specific language governing permissions and
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17 * limitations under the License.
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19 * SPDX-License-Identifier: Apache-2.0
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20 * ============LICENSE_END=========================================================
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23 package org.onap.policy.api.main.rest;
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25 import java.util.UUID;
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26 import javax.ws.rs.core.Response;
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27 import javax.ws.rs.core.Response.ResponseBuilder;
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28 import org.onap.policy.common.utils.coder.Coder;
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29 import org.onap.policy.common.utils.coder.CoderException;
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30 import org.onap.policy.common.utils.coder.StandardCoder;
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31 import org.onap.policy.models.errors.concepts.ErrorResponseInfo;
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32 import org.slf4j.Logger;
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33 import org.slf4j.LoggerFactory;
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36 * Super class from which REST controllers are derived.
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38 public class CommonRestController {
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40 private static final Logger LOGGER = LoggerFactory.getLogger(CommonRestController.class);
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42 private final Coder coder = new StandardCoder();
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45 protected Response makeOkResponse(UUID requestId, Object respEntity) {
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46 return addLoggingHeaders(addVersionControlHeaders(Response.status(Response.Status.OK)), requestId)
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47 .entity(respEntity).build();
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50 protected <T extends ErrorResponseInfo> Response makeErrorResponse(UUID requestId, T pfme) {
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51 return addLoggingHeaders(addVersionControlHeaders(Response.status(pfme.getErrorResponse().getResponseCode())),
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52 requestId).entity(pfme.getErrorResponse()).build();
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55 protected ResponseBuilder addVersionControlHeaders(ResponseBuilder rb) {
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56 return rb.header("X-MinorVersion", "0").header("X-PatchVersion", "0").header("X-LatestVersion", "1.0.0");
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59 protected ResponseBuilder addLoggingHeaders(ResponseBuilder rb, UUID requestId) {
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60 if (requestId == null) {
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61 // Generate a random uuid if client does not embed requestId in rest request
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62 return rb.header("X-ONAP-RequestID", UUID.randomUUID());
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64 return rb.header("X-ONAP-RequestID", requestId);
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68 * Converts an object to a JSON string.
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70 * @param object object to convert
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71 * @return a JSON string representing the object
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73 protected String toJson(Object object) {
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74 if (object == null) {
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79 return coder.encode(object);
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81 } catch (CoderException e) {
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82 LOGGER.warn("cannot convert {} to JSON", object.getClass().getName(), e);
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