<T> T invokeClient(
FhirContext theContext,
IClientResponseHandler<T> binding,
BaseHttpClientInvocation clientInvocation,
EncodingEnum theEncoding,
Boolean thePrettyPrint,
boolean theLogRequestAndResponse) {
if (!myDontValidateConformance) {
myFactory.validateServerBaseIfConfiguredToDoSo(myUrlBase, myClient, this);
}
// TODO: handle non 2xx status codes by throwing the correct exception,
// and ensure it's passed upwards
HttpRequestBase httpRequest;
HttpResponse response;
try {
Map<String, List<String>> params = createExtraParams();
if (theEncoding == EncodingEnum.XML) {
params.put(Constants.PARAM_FORMAT, Collections.singletonList("xml"));
} else if (theEncoding == EncodingEnum.JSON) {
params.put(Constants.PARAM_FORMAT, Collections.singletonList("json"));
}
if (thePrettyPrint == Boolean.TRUE) {
params.put(
Constants.PARAM_PRETTY, Collections.singletonList(Constants.PARAM_PRETTY_VALUE_TRUE));
}
EncodingEnum encoding = getEncoding();
if (theEncoding != null) {
encoding = theEncoding;
}
httpRequest = clientInvocation.asHttpRequest(myUrlBase, params, encoding, thePrettyPrint);
if (theLogRequestAndResponse) {
ourLog.info("Client invoking: {}", httpRequest);
if (httpRequest instanceof HttpEntityEnclosingRequest) {
HttpEntity entity = ((HttpEntityEnclosingRequest) httpRequest).getEntity();
if (entity.isRepeatable()) {
String content = IOUtils.toString(entity.getContent());
ourLog.info("Client request body: {}", content);
}
}
}
for (IClientInterceptor nextInterceptor : myInterceptors) {
nextInterceptor.interceptRequest(httpRequest);
}
response = myClient.execute(httpRequest);
for (IClientInterceptor nextInterceptor : myInterceptors) {
nextInterceptor.interceptResponse(response);
}
} catch (DataFormatException e) {
throw new FhirClientConnectionException(e);
} catch (IOException e) {
throw new FhirClientConnectionException(e);
}
try {
String mimeType;
if (Constants.STATUS_HTTP_204_NO_CONTENT == response.getStatusLine().getStatusCode()) {
mimeType = null;
} else {
ContentType ct = ContentType.get(response.getEntity());
mimeType = ct != null ? ct.getMimeType() : null;
}
Map<String, List<String>> headers = new HashMap<String, List<String>>();
if (response.getAllHeaders() != null) {
for (Header next : response.getAllHeaders()) {
String name = next.getName().toLowerCase();
List<String> list = headers.get(name);
if (list == null) {
list = new ArrayList<String>();
headers.put(name, list);
}
list.add(next.getValue());
}
}
if (response.getStatusLine().getStatusCode() < 200
|| response.getStatusLine().getStatusCode() > 299) {
String body = null;
Reader reader = null;
try {
reader = createReaderFromResponse(response);
body = IOUtils.toString(reader);
} catch (Exception e) {
ourLog.debug("Failed to read input stream", e);
} finally {
IOUtils.closeQuietly(reader);
}
String message =
"HTTP "
+ response.getStatusLine().getStatusCode()
+ " "
+ response.getStatusLine().getReasonPhrase();
BaseOperationOutcome oo = null;
if (Constants.CT_TEXT.equals(mimeType)) {
message = message + ": " + body;
} else {
EncodingEnum enc = EncodingEnum.forContentType(mimeType);
if (enc != null) {
IParser p = enc.newParser(theContext);
try {
// TODO: handle if something other than OO comes back
oo = (BaseOperationOutcome) p.parseResource(body);
if (oo.getIssueFirstRep().getDetailsElement().isEmpty() == false) {
message = message + ": " + oo.getIssueFirstRep().getDetailsElement().getValue();
}
} catch (Exception e) {
ourLog.debug("Failed to process OperationOutcome response");
}
}
}
keepResponseAndLogIt(theLogRequestAndResponse, response, body);
BaseServerResponseException exception =
BaseServerResponseException.newInstance(
response.getStatusLine().getStatusCode(), message);
exception.setOperationOutcome(oo);
if (body != null) {
exception.setResponseBody(body);
}
throw exception;
}
if (binding instanceof IClientResponseHandlerHandlesBinary) {
IClientResponseHandlerHandlesBinary<T> handlesBinary =
(IClientResponseHandlerHandlesBinary<T>) binding;
if (handlesBinary.isBinary()) {
InputStream reader = response.getEntity().getContent();
try {
if (ourLog.isTraceEnabled() || myKeepResponses || theLogRequestAndResponse) {
byte[] responseBytes = IOUtils.toByteArray(reader);
if (myKeepResponses) {
myLastResponse = response;
myLastResponseBody = null;
}
String message =
"HTTP "
+ response.getStatusLine().getStatusCode()
+ " "
+ response.getStatusLine().getReasonPhrase();
if (theLogRequestAndResponse) {
ourLog.info("Client response: {} - {} bytes", message, responseBytes.length);
} else {
ourLog.trace("Client response: {} - {} bytes", message, responseBytes.length);
}
reader = new ByteArrayInputStream(responseBytes);
}
return handlesBinary.invokeClient(
mimeType, reader, response.getStatusLine().getStatusCode(), headers);
} finally {
IOUtils.closeQuietly(reader);
}
}
}
Reader reader = createReaderFromResponse(response);
if (ourLog.isTraceEnabled() || myKeepResponses || theLogRequestAndResponse) {
String responseString = IOUtils.toString(reader);
keepResponseAndLogIt(theLogRequestAndResponse, response, responseString);
reader = new StringReader(responseString);
}
try {
return binding.invokeClient(
mimeType, reader, response.getStatusLine().getStatusCode(), headers);
} finally {
IOUtils.closeQuietly(reader);
}
} catch (IllegalStateException e) {
throw new FhirClientConnectionException(e);
} catch (IOException e) {
throw new FhirClientConnectionException(e);
} finally {
if (response instanceof CloseableHttpResponse) {
try {
((CloseableHttpResponse) response).close();
} catch (IOException e) {
ourLog.debug("Failed to close response", e);
}
}
}
}
void forceConformanceCheck() {
myFactory.validateServerBase(myUrlBase, myClient, this);
}