001/*
002 * #%L
003 * HAPI FHIR - Core Library
004 * %%
005 * Copyright (C) 2014 - 2023 Smile CDR, Inc.
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 *
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package ca.uhn.fhir.rest.api;
021
022import ca.uhn.fhir.context.FhirContext;
023import ca.uhn.fhir.i18n.Msg;
024import ca.uhn.fhir.rest.annotation.Patch;
025import ca.uhn.fhir.rest.server.exceptions.InvalidRequestException;
026
027import javax.annotation.Nonnull;
028import java.util.HashMap;
029import java.util.Map;
030
031import static org.apache.commons.lang3.StringUtils.defaultString;
032import static org.apache.commons.lang3.StringUtils.isBlank;
033
034/**
035 * Parameter type for methods annotated with {@link Patch}
036 */
037public enum PatchTypeEnum {
038
039        JSON_PATCH(Constants.CT_JSON_PATCH),
040        XML_PATCH(Constants.CT_XML_PATCH),
041        FHIR_PATCH_JSON(Constants.CT_FHIR_JSON_NEW),
042        FHIR_PATCH_XML(Constants.CT_FHIR_XML_NEW);
043
044        private static volatile Map<String, PatchTypeEnum> ourContentTypeToPatchType;
045        private final String myContentType;
046
047        PatchTypeEnum(String theContentType) {
048                myContentType = theContentType;
049        }
050
051        public String getContentType() {
052                return myContentType;
053        }
054
055        @Nonnull
056        public static PatchTypeEnum forContentTypeOrThrowInvalidRequestException(FhirContext theContext, String theContentType) {
057                String contentType = defaultString(theContentType);
058                int semiColonIdx = contentType.indexOf(';');
059                if (semiColonIdx != -1) {
060                        contentType = theContentType.substring(0, semiColonIdx);
061                }
062                contentType = contentType.trim();
063
064
065                Map<String, PatchTypeEnum> map = ourContentTypeToPatchType;
066                if (map == null) {
067                        map = new HashMap<>();
068                        for (PatchTypeEnum next : values()) {
069                                map.put(next.getContentType(), next);
070                        }
071                        ourContentTypeToPatchType = map;
072                }
073
074                PatchTypeEnum retVal = map.get(contentType);
075                if (retVal == null) {
076                        if (isBlank(contentType)) {
077                                String msg = theContext.getLocalizer().getMessage(PatchTypeEnum.class, "missingPatchContentType");
078                                throw new InvalidRequestException(Msg.code(1964) + msg);
079                        }
080
081                        String msg = theContext.getLocalizer().getMessageSanitized(PatchTypeEnum.class, "invalidPatchContentType", contentType);
082                        throw new InvalidRequestException(Msg.code(1965) + msg);
083                }
084
085                return retVal;
086        }
087}