--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Samples/FHIR/src/main/java/FhirRequestHandler.java	Sat Oct 21 09:53:25 2023 +0200
@@ -0,0 +1,101 @@
+/**
+ * SPDX-FileCopyrightText: 2023 Sebastien Jodogne, UCLouvain, Belgium
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+/**
+ * Java plugin for Orthanc
+ * Copyright (C) 2023 Sebastien Jodogne, UCLouvain, Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+import ca.uhn.fhir.rest.server.RestfulServer;
+import be.uclouvain.orthanc.Callbacks;
+import be.uclouvain.orthanc.RestOutput;
+import be.uclouvain.orthanc.HttpMethod;
+import org.springframework.mock.web.MockHttpServletRequest;
+import org.springframework.mock.web.MockHttpServletResponse;
+
+import javax.servlet.ServletException;
+import java.io.IOException;
+import java.util.Map;
+
+public class FhirRequestHandler implements Callbacks.OnRestRequest {
+    private static RestfulServer server;
+
+    FhirRequestHandler(RestfulServer server) {
+        this.server = server;
+    }
+
+    @Override
+    public void call(RestOutput output,
+                     HttpMethod method,
+                     String uri,
+                     String[] regularExpressionGroups,
+                     Map<String, String> headers,
+                     Map<String, String> getParameters, byte[] body) {
+        MockHttpServletRequest request = new MockHttpServletRequest();
+
+        if (regularExpressionGroups.length == 0) {
+            request.setRequestURI("/");
+        } else {
+            request.setRequestURI(regularExpressionGroups[0]);
+        }
+        request.setContent(body);
+
+        switch (method) {
+            case GET:
+                request.setMethod("GET");
+                break;
+            case POST:
+                request.setMethod("POST");
+                break;
+            case PUT:
+                request.setMethod("PUT");
+                break;
+            case DELETE:
+                request.setMethod("DELETE");
+                break;
+            default:
+                throw new IllegalArgumentException("Unknown HTTP method");
+        }
+
+        for (Map.Entry<String, String> entry : headers.entrySet()) {
+            request.addHeader(entry.getKey(), entry.getValue());
+        }
+
+        for (Map.Entry<String, String> entry : getParameters.entrySet()) {
+            request.setParameter(entry.getKey(), entry.getValue());
+        }
+
+        try {
+            MockHttpServletResponse response = new MockHttpServletResponse();
+            server.service(request, response);
+
+            for (String header : response.getHeaderNames()) {
+                if (header != "Content-Type") {
+                    output.setHttpHeader(header, response.getHeader(header));
+                }
+            }
+
+            output.answerBuffer(response.getContentAsByteArray(), response.getContentType());
+        } catch (IOException e) {
+            output.sendHttpStatusCode((short) 500);
+        } catch (ServletException e) {
+            output.sendHttpStatusCode((short) 500);
+        }
+    }
+}