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.rules.matcher.fieldmatchers;
021
022import ca.uhn.fhir.context.FhirContext;
023import ca.uhn.fhir.mdm.rules.json.MdmMatcherJson;
024import ca.uhn.fhir.mdm.rules.matcher.models.IMdmFieldMatcher;
025import org.hl7.fhir.instance.model.api.IBase;
026
027public class HapiDateMatcher implements IMdmFieldMatcher {
028
029        private final FhirContext myFhirContext;
030
031        public HapiDateMatcher(FhirContext theFhirContext) {
032                myFhirContext = theFhirContext;
033        }
034
035        @Override
036        public boolean matches(IBase theLeftBase, IBase theRightBase, MdmMatcherJson theParams) {
037                DateTimeWrapper left = new DateTimeWrapper(myFhirContext, theLeftBase);
038                DateTimeWrapper right = new DateTimeWrapper(myFhirContext, theRightBase);
039
040                /*
041                 * we use the precision to determine how we should equate.
042                 * We should use the same precision (the precision of the less
043                 * precise date)
044                 */
045                int comparison = left.getPrecision().compareTo(right.getPrecision());
046
047                String leftString;
048                String rightString;
049                if (comparison == 0) {
050                        // same precision
051                        leftString = left.getValueAsString();
052                        rightString = right.getValueAsString();
053                } else if (comparison > 0) {
054                        // left date is more precise than right date
055                        leftString = left.getValueAsStringWithPrecision(right.getPrecision());
056                        rightString = right.getValueAsString();
057                } else {
058                        // right date is more precise than left date
059                        rightString = right.getValueAsStringWithPrecision(left.getPrecision());
060                        leftString = left.getValueAsString();
061                }
062
063                return leftString.equals(rightString);
064        }
065}