protected void streamOperationOutcome(
BaseServerResponseException theE,
RestfulServer theServer,
EncodingEnum theEncodingNotNull,
HttpServletResponse theResponse,
RequestDetails theRequest)
throws IOException {
theResponse.setStatus(theE.getStatusCode());
theServer.addHeadersToResponse(theResponse);
if (theE.getOperationOutcome() != null) {
theResponse.setContentType(theEncodingNotNull.getResourceContentType());
IParser parser = theEncodingNotNull.newParser(theServer.getFhirContext());
parser.setPrettyPrint(RestfulServerUtils.prettyPrintResponse(theServer, theRequest));
Writer writer = theResponse.getWriter();
try {
parser.encodeResourceToWriter(theE.getOperationOutcome(), writer);
} finally {
writer.close();
}
} else {
theResponse.setContentType(Constants.CT_TEXT);
Writer writer = theResponse.getWriter();
try {
writer.append(theE.getMessage());
} finally {
writer.close();
}
}
}
@Override
public Bundle invokeClient(
String theResponseMimeType,
Reader theResponseReader,
int theResponseStatusCode,
Map<String, List<String>> theHeaders)
throws IOException, BaseServerResponseException {
EncodingEnum respType = EncodingEnum.forContentType(theResponseMimeType);
if (respType == null) {
throw NonFhirResponseException.newInstance(
theResponseStatusCode, theResponseMimeType, theResponseReader);
}
IParser parser = respType.newParser(myContext);
return parser.parseBundle(myType, theResponseReader);
}
protected IResource parseResourceBody(String theResourceBody) {
EncodingEnum encoding = null;
for (int i = 0; i < theResourceBody.length() && encoding == null; i++) {
switch (theResourceBody.charAt(i)) {
case '<':
encoding = EncodingEnum.XML;
break;
case '{':
encoding = EncodingEnum.JSON;
break;
}
}
if (encoding == null) {
throw new InvalidRequestException("FHIR client can't determine resource encoding");
}
return encoding.newParser(myContext).parseResource(theResourceBody);
}
@Override
public T invokeClient(
String theResponseMimeType,
Reader theResponseReader,
int theResponseStatusCode,
Map<String, List<String>> theHeaders)
throws IOException, BaseServerResponseException {
EncodingEnum respType = EncodingEnum.forContentType(theResponseMimeType);
if (respType == null) {
throw NonFhirResponseException.newInstance(
theResponseStatusCode, theResponseMimeType, theResponseReader);
}
IParser parser = respType.newParser(myContext);
T retVal = parser.parseResource(myType, theResponseReader);
if (myId != null) {
retVal.setId(myId);
}
MethodUtil.parseClientRequestResourceHeaders(theHeaders, retVal);
return retVal;
}
@Override
public OperationOutcome invokeClient(
String theResponseMimeType,
Reader theResponseReader,
int theResponseStatusCode,
Map<String, List<String>> theHeaders)
throws IOException, BaseServerResponseException {
EncodingEnum respType = EncodingEnum.forContentType(theResponseMimeType);
if (respType == null) {
return null;
}
IParser parser = respType.newParser(myContext);
OperationOutcome retVal;
try {
retVal = parser.parseResource(OperationOutcome.class, theResponseReader);
} catch (DataFormatException e) {
ourLog.warn("Failed to parse OperationOutcome response", e);
return null;
}
MethodUtil.parseClientRequestResourceHeaders(theHeaders, retVal);
return retVal;
}
private String parseNarrative(
HomeRequest theRequest, EncodingEnum theCtEnum, String theResultBody) {
try {
IBaseResource par = theCtEnum.newParser(getContext(theRequest)).parseResource(theResultBody);
String retVal;
if (par instanceof IResource) {
IResource resource = (IResource) par;
retVal = resource.getText().getDiv().getValueAsString();
} else if (par instanceof IDomainResource) {
retVal = ((IDomainResource) par).getText().getDivAsString();
} else {
retVal = null;
}
return StringUtils.defaultString(retVal);
} catch (Exception e) {
ourLog.error("Failed to parse resource", e);
return "";
}
}
@Override
public String lookup(String theKey) {
/*
* TODO: this method could be made more efficient through some sort of lookup map
*/
if ("operationType".equals(theKey)) {
if (myRequestDetails.getRestOperationType() != null) {
return myRequestDetails.getRestOperationType().getCode();
}
return "";
} else if ("operationName".equals(theKey)) {
if (myRequestDetails.getRestOperationType() != null) {
switch (myRequestDetails.getRestOperationType()) {
case EXTENDED_OPERATION_INSTANCE:
case EXTENDED_OPERATION_SERVER:
case EXTENDED_OPERATION_TYPE:
return myRequestDetails.getOperation();
default:
return "";
}
} else {
return "";
}
} else if ("id".equals(theKey)) {
if (myRequestDetails.getId() != null) {
return myRequestDetails.getId().getValue();
}
return "";
} else if ("servletPath".equals(theKey)) {
return StringUtils.defaultString(myRequest.getServletPath());
} else if ("idOrResourceName".equals(theKey)) {
if (myRequestDetails.getId() != null) {
return myRequestDetails.getId().getValue();
}
if (myRequestDetails.getResourceName() != null) {
return myRequestDetails.getResourceName();
}
return "";
} else if (theKey.equals("requestParameters")) {
StringBuilder b = new StringBuilder();
for (Entry<String, String[]> next : myRequestDetails.getParameters().entrySet()) {
for (String nextValue : next.getValue()) {
if (b.length() == 0) {
b.append('?');
} else {
b.append('&');
}
try {
b.append(URLEncoder.encode(next.getKey(), "UTF-8"));
b.append('=');
b.append(URLEncoder.encode(nextValue, "UTF-8"));
} catch (UnsupportedEncodingException e) {
throw new ca.uhn.fhir.context.ConfigurationException("UTF-8 not supported", e);
}
}
}
return b.toString();
} else if (theKey.startsWith("requestHeader.")) {
String val = myRequest.getHeader(theKey.substring("requestHeader.".length()));
return StringUtils.defaultString(val);
} else if (theKey.startsWith("remoteAddr")) {
return StringUtils.defaultString(myRequest.getRemoteAddr());
} else if (theKey.equals("responseEncodingNoDefault")) {
EncodingEnum encoding =
RestfulServerUtils.determineResponseEncodingNoDefault(
myRequestDetails, myRequestDetails.getServer().getDefaultResponseEncoding());
if (encoding != null) {
return encoding.name();
} else {
return "";
}
} else if (theKey.equals("exceptionMessage")) {
return myException != null ? myException.getMessage() : null;
} else if (theKey.equals("requestUrl")) {
return myRequest.getRequestURL().toString();
} else if (theKey.equals("requestVerb")) {
return myRequest.getMethod();
} else if (theKey.equals("requestBodyFhir")) {
String contentType = myRequest.getContentType();
if (isNotBlank(contentType)) {
int colonIndex = contentType.indexOf(';');
if (colonIndex != -1) {
contentType = contentType.substring(0, colonIndex);
}
contentType = contentType.trim();
EncodingEnum encoding = EncodingEnum.forContentType(contentType);
if (encoding != null) {
byte[] requestContents = myRequestDetails.loadRequestContents();
return new String(requestContents, Charsets.UTF_8);
}
}
return "";
}
return "!VAL!";
}
protected void processAndAddLastClientInvocation(
GenericClient theClient,
ResultType theResultType,
ModelMap theModelMap,
long theLatency,
String outcomeDescription,
CaptureInterceptor theInterceptor,
HomeRequest theRequest) {
try {
HttpRequestBase lastRequest = theInterceptor.getLastRequest();
HttpResponse lastResponse = theInterceptor.getLastResponse();
String requestBody = null;
String requestUrl = lastRequest != null ? lastRequest.getURI().toASCIIString() : null;
String action = lastRequest != null ? lastRequest.getMethod() : null;
String resultStatus = lastResponse != null ? lastResponse.getStatusLine().toString() : null;
String resultBody = StringUtils.defaultString(theInterceptor.getLastResponseBody());
if (lastRequest instanceof HttpEntityEnclosingRequest) {
HttpEntity entity = ((HttpEntityEnclosingRequest) lastRequest).getEntity();
if (entity.isRepeatable()) {
requestBody = IOUtils.toString(entity.getContent());
}
}
ContentType ct = lastResponse != null ? ContentType.get(lastResponse.getEntity()) : null;
String mimeType = ct != null ? ct.getMimeType() : null;
EncodingEnum ctEnum = EncodingEnum.forContentType(mimeType);
String narrativeString = "";
StringBuilder resultDescription = new StringBuilder();
Bundle bundle = null;
IBaseResource riBundle = null;
FhirContext context = getContext(theRequest);
if (ctEnum == null) {
resultDescription.append("Non-FHIR response");
} else {
switch (ctEnum) {
case JSON:
if (theResultType == ResultType.RESOURCE) {
narrativeString = parseNarrative(theRequest, ctEnum, resultBody);
resultDescription.append("JSON resource");
} else if (theResultType == ResultType.BUNDLE) {
resultDescription.append("JSON bundle");
if (context.getVersion().getVersion().isRi()) {
riBundle = context.newJsonParser().parseResource(resultBody);
} else {
bundle = context.newJsonParser().parseBundle(resultBody);
}
}
break;
case XML:
default:
if (theResultType == ResultType.RESOURCE) {
narrativeString = parseNarrative(theRequest, ctEnum, resultBody);
resultDescription.append("XML resource");
} else if (theResultType == ResultType.BUNDLE) {
resultDescription.append("XML bundle");
if (context.getVersion().getVersion().isRi()) {
riBundle = context.newXmlParser().parseResource(resultBody);
} else {
bundle = context.newXmlParser().parseBundle(resultBody);
}
}
break;
}
}
resultDescription.append(" (").append(resultBody.length() + " bytes)");
Header[] requestHeaders =
lastRequest != null ? applyHeaderFilters(lastRequest.getAllHeaders()) : new Header[0];
Header[] responseHeaders =
lastResponse != null ? applyHeaderFilters(lastResponse.getAllHeaders()) : new Header[0];
theModelMap.put("outcomeDescription", outcomeDescription);
theModelMap.put("resultDescription", resultDescription.toString());
theModelMap.put("action", action);
theModelMap.put("bundle", bundle);
theModelMap.put("riBundle", riBundle);
theModelMap.put("resultStatus", resultStatus);
theModelMap.put("requestUrl", requestUrl);
theModelMap.put("requestUrlText", formatUrl(theClient.getUrlBase(), requestUrl));
String requestBodyText = format(requestBody, ctEnum);
theModelMap.put("requestBody", requestBodyText);
String resultBodyText = format(resultBody, ctEnum);
theModelMap.put("resultBody", resultBodyText);
theModelMap.put("resultBodyIsLong", resultBodyText.length() > 1000);
theModelMap.put("requestHeaders", requestHeaders);
theModelMap.put("responseHeaders", responseHeaders);
theModelMap.put("narrative", narrativeString);
theModelMap.put("latencyMs", theLatency);
} catch (Exception e) {
ourLog.error("Failure during processing", e);
theModelMap.put("errorMsg", "Error during processing: " + e.getMessage());
}
}
<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);
}
}
}
}
