001package ca.uhn.fhir.util;
002
003/*-
004 * #%L
005 * HAPI FHIR - Core Library
006 * %%
007 * Copyright (C) 2014 - 2019 University Health Network
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 *
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 *
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023import ca.uhn.fhir.context.BaseRuntimeChildDefinition;
024import ca.uhn.fhir.context.FhirContext;
025import ca.uhn.fhir.context.RuntimeResourceDefinition;
026import org.apache.commons.lang3.Validate;
027import org.hl7.fhir.instance.model.api.IBase;
028import org.hl7.fhir.instance.model.api.IBaseResource;
029import org.hl7.fhir.instance.model.api.IPrimitiveType;
030
031import java.util.ArrayList;
032import java.util.List;
033
034public class SearchParameterUtil {
035
036        public static List<String> getBaseAsStrings(FhirContext theContext, IBaseResource theResource) {
037                Validate.notNull(theContext, "theContext must not be null");
038                Validate.notNull(theResource, "theResource must not be null");
039                RuntimeResourceDefinition def = theContext.getResourceDefinition(theResource);
040
041                BaseRuntimeChildDefinition base = def.getChildByName("base");
042                List<IBase> baseValues = base.getAccessor().getValues(theResource);
043                List<String> retVal = new ArrayList<>();
044                for (IBase next : baseValues) {
045                        IPrimitiveType<?> nextPrimitive = (IPrimitiveType<?>) next;
046                        retVal.add(nextPrimitive.getValueAsString());
047                }
048
049                return retVal;
050        }
051
052}