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.param.binder;
021
022import ca.uhn.fhir.context.FhirContext;
023import ca.uhn.fhir.i18n.Msg;
024import ca.uhn.fhir.model.api.IQueryParameterOr;
025import ca.uhn.fhir.model.api.IQueryParameterType;
026import ca.uhn.fhir.rest.api.QualifiedParamList;
027import ca.uhn.fhir.rest.param.ParameterUtil;
028import ca.uhn.fhir.rest.server.exceptions.InternalErrorException;
029import ca.uhn.fhir.rest.server.exceptions.InvalidRequestException;
030import org.apache.commons.lang3.StringUtils;
031
032import java.util.Collections;
033import java.util.List;
034
035public final class QueryParameterTypeBinder extends BaseBinder<IQueryParameterType> implements IParamBinder<IQueryParameterType> {
036
037        public QueryParameterTypeBinder(Class<? extends IQueryParameterType> theType, List<Class<? extends IQueryParameterType>> theCompositeTypes) {
038                super(theType, theCompositeTypes);
039        }
040
041        @SuppressWarnings("unchecked")
042        @Override
043        public List<IQueryParameterOr<?>> encode(FhirContext theContext, IQueryParameterType theValue) throws InternalErrorException {
044                IQueryParameterType param = theValue;
045                List<?> retVal = Collections.singletonList(ParameterUtil.singleton(param, null));
046                return (List<IQueryParameterOr<?>>) retVal;
047        }
048
049        @Override
050        public IQueryParameterType parse(FhirContext theContext, String theParamName, List<QualifiedParamList> theParams) throws InternalErrorException, InvalidRequestException {
051                String value = theParams.get(0).get(0);
052                if (StringUtils.isBlank(value)) {
053                        return null;
054                }
055                
056                IQueryParameterType dt = super.newInstance();
057
058                if (theParams.size() == 0 || theParams.get(0).size() == 0) {
059                        return dt;
060                }
061                if (theParams.size() > 1 || theParams.get(0).size() > 1) {
062                        throw new InvalidRequestException(Msg.code(1962) + "Multiple values detected for non-repeatable parameter '" + theParamName + "'. This server is not configured to allow multiple (AND/OR) values for this param.");
063                }
064
065                dt.setValueAsQueryToken(theContext, theParamName, theParams.get(0).getQualifier(), value);
066                return dt;
067        }
068
069}