001/*-
002 * #%L
003 * HAPI FHIR - Server Framework
004 * %%
005 * Copyright (C) 2014 - 2023 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.rest.server.util;
021
022import ca.uhn.fhir.rest.api.server.RequestDetails;
023import ca.uhn.fhir.rest.server.RestfulServer;
024import ca.uhn.fhir.rest.server.RestfulServerConfiguration;
025import org.apache.commons.lang3.Validate;
026
027import javax.annotation.Nullable;
028
029public abstract class BaseServerCapabilityStatementProvider {
030
031  private RestfulServerConfiguration myConfiguration;
032
033  protected BaseServerCapabilityStatementProvider() {
034    super();
035  }
036
037  protected BaseServerCapabilityStatementProvider(RestfulServerConfiguration theServerConfiguration) {
038    myConfiguration = theServerConfiguration;
039  }
040
041
042  protected RestfulServerConfiguration getServerConfiguration(@Nullable RequestDetails theRequestDetails) {
043    RestfulServerConfiguration retVal;
044    if (theRequestDetails != null && theRequestDetails.getServer() instanceof RestfulServer) {
045      retVal = ((RestfulServer) theRequestDetails.getServer()).createConfiguration();
046      Validate.isTrue(myConfiguration == null);
047    } else {
048      retVal = myConfiguration;
049      Validate.notNull(retVal);
050    }
051    return retVal;
052  }
053
054}