001package ca.uhn.fhir.jpa.binary.api;
002
003/*-
004 * #%L
005 * HAPI FHIR Storage api
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.util.HapiExtensions;
024import org.hl7.fhir.instance.model.api.IBaseHasExtensions;
025import org.hl7.fhir.instance.model.api.IPrimitiveType;
026
027import java.util.Optional;
028
029import static org.apache.commons.lang3.StringUtils.isNotBlank;
030
031/**
032 * Wraps an Attachment datatype or Binary resource, since they both
033 * hold binary content but don't look entirely similar
034 */
035public interface IBinaryTarget {
036
037        void setSize(Integer theSize);
038
039        String getContentType();
040
041        void setContentType(String theContentType);
042
043        byte[] getData();
044
045        void setData(byte[] theBytes);
046
047        IBaseHasExtensions getTarget();
048
049        @SuppressWarnings("unchecked")
050        default Optional<String> getAttachmentId() {
051                return getTarget()
052                        .getExtension()
053                        .stream()
054                        .filter(t -> HapiExtensions.EXT_EXTERNALIZED_BINARY_ID.equals(t.getUrl()))
055                        .filter(t -> t.getValue() instanceof IPrimitiveType)
056                        .map(t -> (IPrimitiveType<String>) t.getValue())
057                        .map(t -> t.getValue())
058                        .filter(t -> isNotBlank(t))
059                        .findFirst();
060        }
061}