001/*
002 * #%L
003 * HAPI FHIR - Core Library
004 * %%
005 * Copyright (C) 2014 - 2025 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;
021
022import ca.uhn.fhir.context.FhirContext;
023import ca.uhn.fhir.model.api.IQueryParameterAnd;
024import ca.uhn.fhir.model.api.IQueryParameterOr;
025import ca.uhn.fhir.rest.api.QualifiedParamList;
026import ca.uhn.fhir.rest.server.exceptions.InvalidRequestException;
027
028import java.util.ArrayList;
029import java.util.List;
030
031public abstract class BaseAndListParam<T extends IQueryParameterOr<?>> implements IQueryParameterAnd<T> {
032
033        private List<T> myValues = new ArrayList<>();
034
035        public abstract BaseAndListParam<T> addAnd(T theValue);
036
037        public BaseAndListParam<T> addValue(T theValue) {
038                myValues.add(theValue);
039                return this;
040        }
041
042        @Override
043        public List<T> getValuesAsQueryTokens() {
044                return myValues;
045        }
046
047        abstract T newInstance();
048
049        @Override
050        public void setValuesAsQueryTokens(
051                        FhirContext theContext, String theParamName, List<QualifiedParamList> theParameters)
052                        throws InvalidRequestException {
053                myValues.clear();
054                for (QualifiedParamList nextParam : theParameters) {
055                        T nextList = newInstance();
056                        nextList.setValuesAsQueryTokens(theContext, theParamName, nextParam);
057                        myValues.add(nextList);
058                }
059        }
060
061        @Override
062        public String toString() {
063                return myValues.toString();
064        }
065
066        /**
067         * Returns the number of AND parameters
068         */
069        public int size() {
070                return myValues.size();
071        }
072}