
001package ca.uhn.fhir.mdm.rules.matcher; 002 003/*- 004 * #%L 005 * HAPI FHIR - Master Data Management 006 * %% 007 * Copyright (C) 2014 - 2023 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.context.FhirContext; 024import org.hl7.fhir.instance.model.api.IBase; 025import org.hl7.fhir.instance.model.api.IPrimitiveType; 026 027/** 028 * Similarity measure for two IBase fields whose similarity can be measured by their String representations. 029 */ 030public class HapiStringMatcher extends BaseHapiStringMetric implements IMdmFieldMatcher { 031 private final IMdmStringMatcher myStringMatcher; 032 033 public HapiStringMatcher(IMdmStringMatcher theStringMatcher) { 034 myStringMatcher = theStringMatcher; 035 } 036 037 public HapiStringMatcher() { 038 myStringMatcher = String::equals; 039 } 040 041 @Override 042 public boolean matches(FhirContext theFhirContext, IBase theLeftBase, IBase theRightBase, boolean theExact, String theIdentifierSystem) { 043 if (theLeftBase instanceof IPrimitiveType && theRightBase instanceof IPrimitiveType) { 044 String leftString = extractString((IPrimitiveType<?>) theLeftBase, theExact); 045 String rightString = extractString((IPrimitiveType<?>) theRightBase, theExact); 046 047 return myStringMatcher.matches(leftString, rightString); 048 } 049 return false; 050 } 051}