I have a use-case where I need to send FormDataMultiPart through exchange body, which goes in a REST service call.
REST end point:
public Response sendttachments(final FormDataMultiPart bodyPart) {
//Do Something
}
Camel Processor:
FormDataMultiPart formDataMultiPart = new FormDataMultiPart();
File file = new File("pathToFile");
InputStream targetStream = new FileInputStream(file);
FormDataBodyPart fdp1 = new FormDataBodyPart(FormDataContentDisposition.name("emailRequest").build(),
someObject, MediaType.APPLICATION_JSON_TYPE);
FormDataBodyPart fdp2 = new FormDataBodyPart(
FormDataContentDisposition.name("file").fileName("fileName").build(), targetStream,MediaType.APPLICATION_OCTET_STREAM_TYPE);
formDataMultiPart.bodyPart(fdp1).bodyPart(fdp2);
exchange.getIn().setBody(Entity.entity(formDataMultiPart, MediaType.MULTIPART_FORM_DATA));
I get the following exception :
Caused by: org.apache.camel.NoTypeConversionAvailableException: No
type converter available to convert from type:
javax.ws.rs.client.Entity to the required type: java.io.InputStream
with value
Entity{entity=org.glassfish.jersey.media.multipart.FormDataMultiPart#3e90d6b2,
variant=Variant[mediaType=multipart/form-data, language=null,
encoding=null], annotations=[]}
Am I missing some conversion type? or something else. Any help would be appreciated
Related
I am using SpringBoot for my restful web service and for one of the end points I am sending a ByteArray as response which works perfectly as it uses ByteArrayHttpMessageConverter.
But now I want to send List of ByteArray in response but it fails as it is not able to find suitable Message converter.
Any ideas on how this can be achieved.
Below is snippet of code for End Point. If I return just byte array instead of list then it works but when I try to return list of byte array then it fails as it cannot find Message converter:
#RequestMapping(value = "/payloadList", method = RequestMethod.GET)
#ResponseBody
public ResponseEntity<List<byte[]>> loadPayload(#RequestParam(value = "tradeIds", required = false) List<String> tradeIds,
#RequestParam(value = "clientName", required = false) String clientName) throws SQLException, IOException {
LOG.info(String.format("Fetching generic trade details for client : {%s} and trade id : {%s}", clientName, Arrays.toString(tradeIds.toArray())));
tradeIds.forEach(tradeId->validateRequestParams(tradeId, clientName));
List<byte[]> payload = tradeLoadService.loadPayload(clientName,tradeIds);
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
return new ResponseEntity<List<byte[]>> (payload, headers, HttpStatus.OK);
}
In my Spring Integration pipeline I am getting a XML payload and depending on the value of the attributes in the XML I have to generate a key and publish it to kafka.
return IntegrationFlows.from(Kafka.messageDrivenChannelAdapter(kafkaListenerContainer))
.wireTap(ACARS_WIRE_TAP_CHNL) // Log the raw message
.enrichHeaders(h ->h.headerFunction(KafkaHeaders.MESSAGE_KEY, m -> {
StringBuilder header = new StringBuilder();
Expression expression = new SpelExpressionParser().parseExpression("payload.Body.toString()");
//Expression expression = new SpelExpressionParser().parseExpression("m.payload.Body.ACIFlight.fltNbr.toString()");
String flightNbr = expression.getValue(String.class);
header.append(flightNbr);
return header.toString();
}))
.get();
XMl is
<?xml version="1.0" encoding="UTF-8"?>
<ns0:Envelope xmlns:ns0="http://www.exmaple.com/FlightLeg">
<ns0:Header>
<ns1:eventHeader xmlns:ns1="http://www.exmaple.com/header" eventID="659" eventName="FlightLegEvent" version="1.0.0">
<ns1:eventSubType>FlightLeg</ns1:eventSubType>
</ns1:eventHeader>
</ns0:Header>
<ns0:Body>
<ns1:ACIFlight xmlns:ns1="http://ual.com/cep/aero/ACIFlight">
<flightKey>1267:07042020:UA</flightKey>
<fltNbr>1267</fltNbr>
<fltLastLegDepDt>07042020</fltLastLegDepDt>
<carrCd>UA</carrCd>
</ns1:ACIFlight>
</ns0:Body>
</ns0:Envelope>
I am trying to get the fltNbr from this xml payload using spel. Please suggest
Updated
String flight = XPathUtils.evaluate(message.getPayload(), "/*[local-name() = 'fltNbr']",XPathUtils.STRING);
String DepDate = XPathUtils.evaluate(message.getPayload(), "/*[local-name() = 'fltLastLegDepDt']",XPathUtils.STRING);
return MessageBuilder.fromMessage(message).setHeader("key", flight+DepDate).build();
You can use the XPath Header Enricher.
XPath is also available as a Spel function, but you'd be better off using the enricher in this case.
public class XPathHeaderEnricher extends HeaderEnricher {
Here's a test case...
#Test
public void convertedEvaluation() {
Map<String, XPathExpressionEvaluatingHeaderValueMessageProcessor> expressionMap =
new HashMap<String, XPathExpressionEvaluatingHeaderValueMessageProcessor>();
XPathExpressionEvaluatingHeaderValueMessageProcessor processor = new XPathExpressionEvaluatingHeaderValueMessageProcessor(
"/root/elementOne");
processor.setHeaderType(TimeZone.class);
expressionMap.put("one", processor);
String docAsString = "<root><elementOne>America/New_York</elementOne></root>";
XPathHeaderEnricher enricher = new XPathHeaderEnricher(expressionMap);
Message<?> result = enricher.transform(MessageBuilder.withPayload(docAsString).build());
MessageHeaders headers = result.getHeaders();
assertThat(headers.get("one")).as("Wrong value for element one expression")
.isEqualTo(TimeZone.getTimeZone("America/New_York"));
}
I'm using RestEasy as a client to read news from a service.
ResteasyClient listClient = new ResteasyClientBuilder().build();
ResteasyWebTarget listTarget = listClient.target("https://someservice.com/file.xml");
Response r = listTarget.request().get();
final HexMl feedList = r.readEntity(HexMl.class);
The service does not return an encoding or media type in the response header, only an encoding in the xml itself
<?xml version="1.0" encoding="windows-1252"?>
RestEasy does not seem to evaluate this so I get an exception:
javax.ws.rs.ProcessingException: org.jboss.resteasy.plugins.providers.jaxb.JAXBUnmarshalException: javax.xml.bind.UnmarshalException
- with linked exception:
[org.xml.sax.SAXParseException; lineNumber: 116; columnNumber: 30; Invalid byte 2 of 3-byte UTF-8 sequence.]
at org.jboss.resteasy.client.jaxrs.internal.ClientResponse.readFrom(ClientResponse.java:300)
at org.jboss.resteasy.client.jaxrs.internal.ClientResponse.readEntity(ClientResponse.java:196)
at org.jboss.resteasy.specimpl.BuiltResponse.readEntity(BuiltResponse.java:218)
at com.roche.services.NewsImportService.importFeed(NewsImportService.java:72)
at com.roche.commands.NewsImportCommand.execute(NewsImportCommand.java:26)
at com.roche.commands.NewsImportCommand$execute.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:110)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:122)
at Script1.run(Script1.groovy:4)
at info.magnolia.module.groovy.console.MgnlGroovyConsole$1.call(MgnlGroovyConsole.java:154)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.jboss.resteasy.plugins.providers.jaxb.JAXBUnmarshalException: javax.xml.bind.UnmarshalException
Is there a way to overwrite the encoding RestEasy uses or intercept the response before the entity is read?
I tried
Response r = listTarget.request().accept(APPLICATION_XML + ";charset=windows-1252").get();
and
Response r = listTarget.request(APPLICATION_XML + ";charset=windows-1252").get();
and
#Consumes(APPLICATION_XML + ";charset=windows-1252")
public class HexMl { ... }
without success. The XML itself seems to be correctly encoded in windows-1252.
For now I'm using a ReaderInterceptor, but this doesn't seem right. So I'd still be glad about better suggestions.
ResteasyClientBuilder clientBuilder = new ResteasyClientBuilder();
ResteasyProviderFactory providerFactory = new ResteasyProviderFactory();
RegisterBuiltin.register( providerFactory );
providerFactory.getClientReaderInterceptorRegistry().registerSingleton( new ReaderInterceptor() {
#Override
public Object aroundReadFrom(ReaderInterceptorContext context) throws IOException, WebApplicationException {
InputStream is = context.getInputStream();
String responseBody = IOUtils.toString( is , "windows-1252");
LOGGER.debug( "received response:\n{}\n\n", responseBody );
context.setInputStream( new ByteArrayInputStream( responseBody.getBytes() ) );
return context.proceed();
}
} );
clientBuilder.providerFactory( providerFactory );
Then I use this clientBuilder to create my client.
I am trying to set receiveTimeout and connection timeout for cxfEndpoint in below code .. I got so many spring dsl related answer but i am using camel dsl specifically.
I am trying to set receiveTimeout and connection timeout for cxfEndpoint in below code .. I got so many spring dsl related answer but i am using camel dsl specifically.
I am trying to set receiveTimeout and connection timeout for cxfEndpoint in below code .. I got so many spring dsl related answer but i am using camel dsl specifically.
I am trying to set receiveTimeout and connection timeout for cxfEndpoint in below code .. I got so many spring dsl related answer but i am using camel dsl specifically.
void configure() throws Exception {
super.configure()
CamelContext context=getContext()
String version=context.resolvePropertyPlaceholders('{{'+ CommonConstants.VERSION_PROPERTY+ '}}')
String region=context.resolvePropertyPlaceholders('{{'+ CommonConstants.REGION_PROPERTY + '}}')
String getContextRoot=context.resolvePropertyPlaceholders('{{' + CommonConstants.CONTEXT_ROOT_PROPERTY + '}}')
boolean validateResponse=getContextRoot
//main route exposing a GET
rest("/$version/$region/")
.get("/$getContextRoot")
.produces('application/json')\
.to('direct:validate')
from('direct:validate')
.routeId('validate')
.bean(ValidatorSubRouteHelper.class,'validate')
.to('direct:get-deviceIdentification')
from('direct:get-deviceIdentification')
.routeId('get-deviceIdentification')
//pre-processing closure
.process {
it.out.body = [ it.properties[MessageReferenceConstants.USER_AGENT_HEADER], new CallContext() ]
it.in.headers[CxfConstants.OPERATION_NAME] = context.resolvePropertyPlaceholders('{{'+MessageReferenceConstants.PROPERTY_OPERATION_NAME+'}}')
it.in.headers[Exchange.SOAP_ACTION] = context.resolvePropertyPlaceholders('{{'+MessageReferenceConstants.PROPERTY_SOAP_ACTION+'}}')
Map<String, Object> reqCtx = new HashMap<String, Object>();
HTTPClientPolicy clientHttpPolicy = new HTTPClientPolicy();
clientHttpPolicy.setReceiveTimeout(10000);
reqCtx.put(HTTPClientPolicy.class.getName(), clientHttpPolicy)
it.in.headers[Client.REQUEST_CONTEXT]=reqCtx
}
.to(getEndpointURL())
//In case of SOAPFault from device, handling the exception in processSOAPResponse
.onException(SoapFault.class)
.bean(ProcessResponseExceptionHelper.class,"processSOAPResponse")
.end()
//post-processing closure
.process {
log.info("processing the response retrieved from device service")
MessageContentsList li = it.in.getBody(MessageContentsList.class)
DeviceFamily deviceFamily = (DeviceFamily) li.get(0)
log.debug('device type is '+deviceFamily.deviceType.value)
it.properties[MessageReferenceConstants.PROPERTY_RESPONSE_BODY] = deviceFamily.deviceType.value
}.to('direct:transform')
from('direct:transform')
.routeId('transform')
//transform closure
.process {
log.info("Entering the FilterTransformSubRoute(transform)")
Device device=new Device()
log.debug('device type '+it.properties[MessageReferenceConstants.PROPERTY_RESPONSE_BODY])
device.familyName = it.properties[MessageReferenceConstants.PROPERTY_RESPONSE_BODY]
it.out.body=device
}
.choice()
.when(simple('{{validateResponse}}'))
.to('direct:validateResponse')
if(validateResponse) {
from('direct:validateResponse')
.bean(DataValidator.getInstance('device.json'))
}
}
/**
* Constructs the endpoint url.
* Formatting end point URL for device identification service call
* #return the endpoint url
*/
private String getEndpointURL() {
CamelContext context=getContext()
def serviceURL=context.resolvePropertyPlaceholders('{{'+MessageReferenceConstants.SERVICE_URL+'}}')
def wsdlURL=context.resolvePropertyPlaceholders('{{'+MessageReferenceConstants.WSDL_URL+'}}')
boolean isGZipEnable=CommonConstants.TRUE.equalsIgnoreCase(context.resolvePropertyPlaceholders('{{'+MessageReferenceConstants.GZIP_ENABLED+'}}'))
def serviceClass = context.resolvePropertyPlaceholders('{{'+MessageReferenceConstants.PROPERTY_SERVICE_CLASS+'}}')
def serviceName = context.resolvePropertyPlaceholders('{{'+MessageReferenceConstants.PROPERTY_SERVICE_NAME+'}}')
def url="cxf:$serviceURL?"+
"wsdlURL=$wsdlURL"+
"&serviceClass=$serviceClass"+
"&serviceName=$serviceName"
if(isGZipEnable) {
url+= "&cxfEndpointConfigurer=#deviceIdentificationServiceCxfConfigurer"
}
log.debug("endpoint url is " + url)
url
}
You already find a the cxfEndpointConfigurer option for it.
Now you just need implement the configurer interface like this:
public static class MyCxfEndpointConfigurer implements CxfEndpointConfigurer {
#Override
public void configure(AbstractWSDLBasedEndpointFactory factoryBean) {
// Do nothing here
}
#Override
public void configureClient(Client client) {
// reset the timeout option to override the spring configuration one
HTTPConduit conduit = (HTTPConduit) client.getConduit();
HTTPClientPolicy policy = new HTTPClientPolicy();
// You can setup the timeout option here
policy.setReceiveTimeout(60000);
policy.setConnectionTimeout(30000);
conduit.setClient(policy);
}
#Override
public void configureServer(Server server) {
// Do nothing here
}
}
I am trying to use resteasy. While I am able to do send a mixed multipart as a request to a webservice, I am unable to do get a mixed multipart in the response.
For eg: Requesting for a file (byte[] or stream) and the file name in a single Response.
Following is what I have tested:
Service code:
#Path("/myfiles")
public class MyMultiPartWebService {
#POST
#Path("/filedetail")
#Consumes("multipart/form-data")
#Produces("multipart/mixed")
public MultipartOutput fileDetail(MultipartFormDataInput input) throws IOException {
MultipartOutput multipartOutput = new MultipartOutput();
//some logic based on input to locate a file(s)
File myFile = new File("samplefile.pdf");
multipartOutput.addPart("fileName:"+ myFile.getName(), MediaType.TEXT_PLAIN_TYPE);
multipartOutput.addPart(file, MediaType.APPLICATION_OCTET_STREAM_TYPE);
return multipartOutput;
}
}
Client code:
public void getFileDetails(/*input params*/){
HttpClient client = new DefaultHttpClient();
HttpPost postRequest = new HttpPost("urlString");
MultipartEntity multiPartEntity = new MultipartEntity();
//prepare the request details
postRequest.setEntity(multiPartEntity);
HttpResponse response = client.execute(postRequest);
HttpEntity returnEntity = response.getEntity();
//extracting data from the response
Header header = returnEntity.getContentType();
InputStream is = returnEntity.getContent();
if (is != null) {
byte[] bytes = IOUtils.toByteArray(is);
//Can we see the 2 parts that were added?
//Able to get a single InputStream only, and hence unable to differentiate two objects in the response
//Trying to see the contents - printing as string
System.out.println("Output from Response :: " + new String(bytes));
}
}
The output is as follows - able to see 2 different objects with different content types, but unable to extract them separately.
Output from Response ::
--af481055-4e4f-4860-9c0b-bb636d86d639
Content-Type: text/plain
fileName: samplefile.pdf
--af481055-4e4f-4860-9c0b-bb636d86d639
Content-Length: 1928
Content-Type: application/octet-stream
%PDF-1.4
<<pdf content printed as junk chars>>
How can I extract the 2 objects from the response?
UPDATE:
Tried the following approach to extract the different parts - use the 'boundary' to break the MultipartStream; use the content type string to extract approp object.
private void getResponeObject(HttpResponse response) throws IllegalStateException, IOException {
HttpEntity returnEntity = response.getEntity();
Header header = returnEntity.getContentType();
String boundary = header.getValue();
boundary = boundary.substring("multipart/mixed; boundary=".length(), boundary.length());
System.out.println("Boundary" + boundary); // --af481055-4e4f-4860-9c0b-bb636d86d639
InputStream is = returnEntity.getContent();
splitter(is, boundary);
}
//extract subsets from the input stream based on content type
private void splitter(InputStream is, String boundary) throws IOException {
ByteArrayOutputStream boas = null;
FileOutputStream fos = null;
MultipartStream multipartStream = new MultipartStream(is, boundary.getBytes());
boolean nextPart = multipartStream.skipPreamble();
System.out.println("NEXT PART :: " + nextPart);
while (nextPart) {
String header = multipartStream.readHeaders();
if (header.contains("Content-Type: "+MediaType.APPLICATION_OCTET_STREAM_TYPE)) {
fos = new FileOutputStream(new File("myfilename.pdf"));
multipartStream.readBodyData(fos);
} else if (header.contains("Content-Type: "+MediaType.TEXT_PLAIN_TYPE)) {
boas = new ByteArrayOutputStream();
multipartStream.readBodyData(boas);
String newString = new String( boas.toByteArray());
} else if (header.contains("Content-Type: "+ MediaType.APPLICATION_JSON_TYPE)) {
//extract string and create JSONObject from it
} else if (header.contains("Content-Type: "+MediaType.APPLICATION_XML_TYPE)) {
//extract string and create XML object from it
}
nextPart = multipartStream.readBoundary();
}
}
Is this the right approach?
UPDATE 2:
The logic above seems to work. But got another block, when receiving the RESPONSE from the webservice. I could not find any references to handle such issues in the Response.
The logic assumes that there is ONE part for a part type. If there are, say, 2 JSON parts in the response, it would be difficult to identify which part is what. In other words, though we can add the part with a key name while creating the response, we are unable to extract the key names int he client side.
Any clues?
You can try the following approach...
At the server side...
Create a wrapper object that can encapsulate all types. For eg., it could have a Map for TEXT and another Map for Binary data.
Convert the TEXT content to bytes (octet stream).
Create a MetaData which contains references to the Key names and their type. Eg., STR_MYKEY1, BYTES_MYKEY2. This metadata can also be converted into octet stream.
Add the metadata and the wrapped entity as parts to the multipart response.
At the Client side...
Read the MetaData to get the key names.
Use the key name to interpret each part. Since the Keyname from the metadata tells if the original data is a TEXT or BINARY, you should be able to extract the actual content with appropriate logic.
The same approach can be used for upstream, from client to service.
On top of this, you can compress the TEXT data which will help in reducing the content size...