001/*-
002 * #%L
003 * HAPI FHIR - Master Data Management
004 * %%
005 * Copyright (C) 2014 - 2024 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.mdm.util;
021
022import org.hl7.fhir.instance.model.api.IPrimitiveType;
023
024import java.lang.reflect.Field;
025import java.util.function.BiPredicate;
026
027public class PrimitiveTypeEqualsPredicate implements BiPredicate {
028
029        @Override
030        public boolean test(Object theBase1, Object theBase2) {
031                if (theBase1 == null) {
032                        return theBase2 == null;
033                }
034                if (theBase2 == null) {
035                        return false;
036                }
037                if (!theBase1.getClass().equals(theBase2.getClass())) {
038                        return false;
039                }
040
041                for (Field f : theBase1.getClass().getDeclaredFields()) {
042                        Class<?> fieldClass = f.getType();
043
044                        if (!IPrimitiveType.class.isAssignableFrom(fieldClass)) {
045                                continue;
046                        }
047
048                        IPrimitiveType<?> val1, val2;
049
050                        f.setAccessible(true);
051                        try {
052                                val1 = (IPrimitiveType<?>) f.get(theBase1);
053                                val2 = (IPrimitiveType<?>) f.get(theBase2);
054                        } catch (Exception e) {
055                                // swallow
056                                continue;
057                        }
058
059                        if (val1 == null && val2 == null) {
060                                continue;
061                        }
062
063                        if (val1 == null || val2 == null) {
064                                return false;
065                        }
066
067                        Object actualVal1 = val1.getValue();
068                        Object actualVal2 = val2.getValue();
069
070                        if (actualVal1 == null && actualVal2 == null) {
071                                continue;
072                        }
073                        if (actualVal1 == null) {
074                                return false;
075                        }
076                        if (!actualVal1.equals(actualVal2)) {
077                                return false;
078                        }
079                }
080
081                return true;
082        }
083}