001package ca.uhn.fhir.rest.server.method;
002
003/*
004 * #%L
005 * HAPI FHIR - Server Framework
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.ConfigurationException;
024import ca.uhn.fhir.model.primitive.IntegerDt;
025import ca.uhn.fhir.parser.DataFormatException;
026import ca.uhn.fhir.rest.annotation.Count;
027import ca.uhn.fhir.rest.api.Constants;
028import ca.uhn.fhir.rest.api.server.RequestDetails;
029import ca.uhn.fhir.rest.param.ParameterUtil;
030import ca.uhn.fhir.rest.server.exceptions.InternalErrorException;
031import ca.uhn.fhir.rest.server.exceptions.InvalidRequestException;
032import org.apache.commons.lang3.StringUtils;
033
034import java.lang.reflect.Method;
035import java.util.Collection;
036
037public class GraphQLQueryParameter implements IParameter {
038
039        private Class<?> myType;
040
041        @Override
042        public Object translateQueryParametersIntoServerArgument(RequestDetails theRequest, BaseMethodBinding<?> theMethodBinding) throws InternalErrorException, InvalidRequestException {
043                String[] queryParams = theRequest.getParameters().get(Constants.PARAM_GRAPHQL_QUERY);
044                String retVal = null;
045                if (queryParams != null) {
046                        if (queryParams.length > 0) {
047                                retVal = queryParams[0];
048                        }
049                }
050                return retVal;
051        }
052
053        @Override
054        public void initializeTypes(Method theMethod, Class<? extends Collection<?>> theOuterCollectionType, Class<? extends Collection<?>> theInnerCollectionType, Class<?> theParameterType) {
055                if (theOuterCollectionType != null) {
056                        throw new ConfigurationException("Method '" + theMethod.getName() + "' in type '" +theMethod.getDeclaringClass().getCanonicalName()+ "' is annotated with @" + Count.class.getName() + " but can not be of collection type");
057                }
058                if (!String.class.equals(theParameterType)) {
059                        throw new ConfigurationException("Method '" + theMethod.getName() + "' in type '" +theMethod.getDeclaringClass().getCanonicalName()+ "' is annotated with @" + Count.class.getName() + " but type '" + theParameterType + "' is an invalid type, must be one of Integer or IntegerType");
060                }
061                myType = theParameterType;
062        }
063
064}