
001package ca.uhn.fhir.rest.client.method; 002 003/* 004 * #%L 005 * HAPI FHIR - Client Framework 006 * %% 007 * Copyright (C) 2014 - 2022 Smile CDR, Inc. 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.i18n.Msg; 024import java.lang.reflect.Method; 025import java.util.Collection; 026import java.util.Collections; 027import java.util.List; 028import java.util.Map; 029 030import org.hl7.fhir.instance.model.api.IBaseResource; 031 032import ca.uhn.fhir.context.ConfigurationException; 033import ca.uhn.fhir.context.FhirContext; 034import ca.uhn.fhir.model.primitive.IntegerDt; 035import ca.uhn.fhir.rest.annotation.Offset; 036import ca.uhn.fhir.rest.annotation.Since; 037import ca.uhn.fhir.rest.api.Constants; 038import ca.uhn.fhir.rest.param.ParameterUtil; 039import ca.uhn.fhir.rest.server.exceptions.InternalErrorException; 040 041public class OffsetParameter implements IParameter { 042 043 @Override 044 public void translateClientArgumentIntoQueryArgument(FhirContext theContext, Object theSourceClientArgument, Map<String, List<String>> theTargetQueryArguments, IBaseResource theTargetResource) 045 throws InternalErrorException { 046 if (theSourceClientArgument != null) { 047 IntegerDt since = ParameterUtil.toInteger(theSourceClientArgument); 048 if (since.isEmpty() == false) { 049 theTargetQueryArguments.put(Constants.PARAM_OFFSET, Collections.singletonList(since.getValueAsString())); 050 } 051 } 052 } 053 054 @Override 055 public void initializeTypes(Method theMethod, Class<? extends Collection<?>> theOuterCollectionType, Class<? extends Collection<?>> theInnerCollectionType, Class<?> theParameterType) { 056 if (theOuterCollectionType != null) { 057 throw new ConfigurationException(Msg.code(1476) + "Method '" + theMethod.getName() + "' in type '" + theMethod.getDeclaringClass().getCanonicalName() + "' is annotated with @" + Offset.class.getName() 058 + " but can not be of collection type"); 059 } 060 if (!ParameterUtil.isBindableIntegerType(theParameterType)) { 061 throw new ConfigurationException(Msg.code(1477) + "Method '" + theMethod.getName() + "' in type '" + theMethod.getDeclaringClass().getCanonicalName() + "' is annotated with @" + Offset.class.getName() 062 + " but type '" + theParameterType + "' is an invalid type, must be Integer or IntegerType"); 063 } 064 } 065 066}