001package ca.uhn.fhir.mdm.rules.matcher;
002
003/*-
004 * #%L
005 * HAPI FHIR - Master Data Management
006 * %%
007 * Copyright (C) 2014 - 2022 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 ca.uhn.fhir.util.ExtensionUtil;
025import org.hl7.fhir.instance.model.api.IBase;
026import org.hl7.fhir.instance.model.api.IBaseExtension;
027import org.hl7.fhir.instance.model.api.IBaseHasExtensions;
028
029import java.util.List;
030
031public class ExtensionMatcher implements IMdmFieldMatcher {
032
033        @Override
034        public boolean matches(FhirContext theFhirContext, IBase theLeftBase, IBase theRightBase, boolean theExact, String theIdentifierSystem) {
035                if (!(theLeftBase instanceof IBaseHasExtensions && theRightBase instanceof IBaseHasExtensions)) {
036                        return false;
037                }
038                List<? extends IBaseExtension<?, ?>> leftExtension = ((IBaseHasExtensions) theLeftBase).getExtension();
039                List<? extends IBaseExtension<?, ?>> rightExtension = ((IBaseHasExtensions) theRightBase).getExtension();
040
041                boolean match = false;
042                for (IBaseExtension leftExtensionValue : leftExtension) {
043                        for (IBaseExtension rightExtensionValue : rightExtension) {
044                                match |= ExtensionUtil.equals(leftExtensionValue, rightExtensionValue);
045                        }
046                }
047                return match;
048        }
049}