Java tutorial
package ca.uhn.fhir.context; /* * #%L * HAPI FHIR - Core Library * %% * Copyright (C) 2014 - 2016 University Health Network * %% * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * #L% */ import static org.apache.commons.lang3.StringUtils.isBlank; import java.lang.reflect.Method; import java.lang.reflect.ParameterizedType; import java.lang.reflect.Type; import java.lang.reflect.TypeVariable; import java.util.Map; import org.hl7.fhir.instance.model.api.IBase; import org.hl7.fhir.instance.model.api.IBaseDatatype; import org.hl7.fhir.instance.model.api.IPrimitiveType; import ca.uhn.fhir.model.api.BasePrimitive; import ca.uhn.fhir.model.api.IPrimitiveDatatype; import ca.uhn.fhir.model.api.annotation.DatatypeDef; import ca.uhn.fhir.model.api.annotation.ResourceDef; import ca.uhn.fhir.util.CoverageIgnore; public class RuntimePrimitiveDatatypeDefinition extends BaseRuntimeElementDefinition<IPrimitiveType<?>> implements IRuntimeDatatypeDefinition { private Class<?> myNativeType; private BaseRuntimeElementDefinition<?> myProfileOf; private Class<? extends IBaseDatatype> myProfileOfType; private boolean mySpecialization; public RuntimePrimitiveDatatypeDefinition(DatatypeDef theDef, Class<? extends IPrimitiveType<?>> theImplementingClass, boolean theStandardType) { super(theDef.name(), theImplementingClass, theStandardType); String resourceName = theDef.name(); if (isBlank(resourceName)) { throw new ConfigurationException("Resource type @" + ResourceDef.class.getSimpleName() + " annotation contains no resource name: " + theImplementingClass.getCanonicalName()); } mySpecialization = theDef.isSpecialization(); myProfileOfType = theDef.profileOf(); if (myProfileOfType.equals(IBaseDatatype.class)) { myProfileOfType = null; } determineNativeType(theImplementingClass); } private void determineNativeType(Class<? extends IPrimitiveType<?>> theImplementingClass) { Class<?> clazz = theImplementingClass; while (clazz.equals(Object.class) == false) { Type type = clazz.getGenericSuperclass(); if (type instanceof ParameterizedType) { ParameterizedType superPt = (ParameterizedType) type; Type rawType = superPt.getRawType(); if (rawType instanceof Class) { Class<?> rawClass = (Class<?>) rawType; if (rawClass.getName().endsWith(".BasePrimitive") || rawClass.getName().endsWith(".PrimitiveType")) { Type typeVariable = superPt.getActualTypeArguments()[0]; if (typeVariable instanceof Class) { myNativeType = (Class<?>) typeVariable; break; } } } } clazz = clazz.getSuperclass(); } } @Override public ca.uhn.fhir.context.BaseRuntimeElementDefinition.ChildTypeEnum getChildType() { return ChildTypeEnum.PRIMITIVE_DATATYPE; } public Class<?> getNativeType() { return myNativeType; } @Override public Class<? extends IBaseDatatype> getProfileOf() { return myProfileOfType; } @Override public boolean isProfileOf(Class<? extends IBaseDatatype> theType) { if (myProfileOfType != null) { if (myProfileOfType.equals(theType)) { return true; } else if (myProfileOf instanceof IRuntimeDatatypeDefinition) { return ((IRuntimeDatatypeDefinition) myProfileOf).isProfileOf(theType); } } return false; } @Override public boolean isSpecialization() { return mySpecialization; } @Override void sealAndInitialize(FhirContext theContext, Map<Class<? extends IBase>, BaseRuntimeElementDefinition<?>> theClassToElementDefinitions) { super.sealAndInitialize(theContext, theClassToElementDefinitions); if (myProfileOfType != null) { myProfileOf = theClassToElementDefinitions.get(myProfileOfType); if (myProfileOf == null) { StringBuilder b = new StringBuilder(); b.append("Unknown profileOf value: "); b.append(myProfileOfType); b.append(" in type "); b.append(getImplementingClass().getName()); b.append(" - Valid types: "); b.append(theClassToElementDefinitions.keySet()); throw new ConfigurationException(b.toString()); } } } }