Examples with DecodeException feign.codec.DecodeException used on opensource projects

Example 1 with DecodeException

use of feign.codec.DecodeException in project feign by OpenFeign.

the class JAXBDecoder method decode.

@Override
public Object decode(Response response, Type type) throws IOException {
    if (response.status() == 204)
        return Util.emptyValueOf(type);
    if (response.body() == null)
        return null;
    while (type instanceof ParameterizedType) {
        ParameterizedType ptype = (ParameterizedType) type;
        type = ptype.getRawType();
    }
    if (!(type instanceof Class)) {
        throw new UnsupportedOperationException("JAXB only supports decoding raw types. Found " + type);
    }
    try {
        SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();
        /* Explicitly control sax configuration to prevent XXE attacks */
        saxParserFactory.setFeature("http://xml.org/sax/features/external-general-entities", false);
        saxParserFactory.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
        saxParserFactory.setFeature("http://apache.org/xml/features/disallow-doctype-decl", false);
        saxParserFactory.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
        saxParserFactory.setNamespaceAware(namespaceAware);
        return jaxbContextFactory.createUnmarshaller((Class<?>) type).unmarshal(new SAXSource(saxParserFactory.newSAXParser().getXMLReader(), new InputSource(response.body().asInputStream())));
    } catch (JAXBException | ParserConfigurationException | SAXException e) {
        throw new DecodeException(response.status(), e.toString(), response.request(), e);
    } finally {
        if (response.body() != null) {
            response.body().close();
        }
    }
}

Example 2 with DecodeException

use of feign.codec.DecodeException in project feign by OpenFeign.

the class MeteredDecoder method decode.

@Override
public Object decode(Response response, Type type) throws IOException, DecodeException, FeignException {
    final RequestTemplate template = response.request().requestTemplate();
    final MeteredBody body = response.body() == null ? null : new MeteredBody(response.body());
    response = response.toBuilder().body(body).build();
    final Object decoded;
    try (final Context classTimer = metricRegistry.timer(metricName.metricName(template.methodMetadata(), template.feignTarget()).tagged("uri", template.methodMetadata().template().path()), metricSuppliers.timers()).time()) {
        decoded = decoder.decode(response, type);
    } catch (IOException | RuntimeException e) {
        metricRegistry.meter(metricName.metricName(template.methodMetadata(), template.feignTarget(), "error_count").tagged("exception_name", e.getClass().getSimpleName()).tagged("uri", template.methodMetadata().template().path()), metricSuppliers.meters()).mark();
        throw e;
    } catch (Exception e) {
        metricRegistry.meter(metricName.metricName(template.methodMetadata(), template.feignTarget(), "error_count").tagged("exception_name", e.getClass().getSimpleName()).tagged("uri", template.methodMetadata().template().path()), metricSuppliers.meters()).mark();
        throw new IOException(e);
    }
    if (body != null) {
        metricRegistry.histogram(metricName.metricName(template.methodMetadata(), template.feignTarget(), "response_size").tagged("uri", template.methodMetadata().template().path()), metricSuppliers.histograms()).update(body.count());
    }
    return decoded;
}

Example 3 with DecodeException

use of feign.codec.DecodeException in project feign by OpenFeign.

the class JacksonJrDecoder method findTransformer.

private static Transformer findTransformer(Response response, Type type) {
    if (type instanceof Class) {
        return (mapper, reader) -> mapper.beanFrom((Class<?>) type, reader);
    }
    if (type instanceof ParameterizedType) {
        Type rawType = ((ParameterizedType) type).getRawType();
        Type[] parameterType = ((ParameterizedType) type).getActualTypeArguments();
        if (rawType.equals(List.class)) {
            return (mapper, reader) -> mapper.listOfFrom((Class<?>) parameterType[0], reader);
        }
        if (rawType.equals(Map.class)) {
            return (mapper, reader) -> mapper.mapOfFrom((Class<?>) parameterType[1], reader);
        }
    }
    throw new DecodeException(500, "Cannot decode type: " + type.getTypeName(), response.request());
}

Example 4 with DecodeException

use of feign.codec.DecodeException in project feign by OpenFeign.

the class SOAPDecoder method decode.

@Override
public Object decode(Response response, Type type) throws IOException {
    if (response.status() == 404)
        return Util.emptyValueOf(type);
    if (response.body() == null)
        return null;
    while (type instanceof ParameterizedType) {
        ParameterizedType ptype = (ParameterizedType) type;
        type = ptype.getRawType();
    }
    if (!(type instanceof Class)) {
        throw new UnsupportedOperationException("SOAP only supports decoding raw types. Found " + type);
    }
    try {
        SOAPMessage message = MessageFactory.newInstance(soapProtocol).createMessage(null, response.body().asInputStream());
        if (message.getSOAPBody() != null) {
            if (message.getSOAPBody().hasFault()) {
                throw new SOAPFaultException(message.getSOAPBody().getFault());
            }
            Unmarshaller unmarshaller = jaxbContextFactory.createUnmarshaller((Class<?>) type);
            if (this.useFirstChild) {
                return unmarshaller.unmarshal(message.getSOAPBody().getFirstChild());
            } else {
                return unmarshaller.unmarshal(message.getSOAPBody().extractContentAsDocument());
            }
        }
    } catch (SOAPException | JAXBException e) {
        throw new DecodeException(response.status(), e.toString(), response.request(), e);
    } finally {
        if (response.body() != null) {
            response.body().close();
        }
    }
    return Util.emptyValueOf(type);
}

Example 5 with DecodeException

use of feign.codec.DecodeException in project feign by OpenFeign.

the class JsonDecoder method decode.

@Override
public Object decode(Response response, Type type) throws IOException, DecodeException {
    if (response.body() == null)
        return null;
    try (Reader reader = response.body().asReader(response.charset())) {
        Reader bodyReader = (reader.markSupported()) ? reader : new BufferedReader(reader);
        bodyReader.mark(1);
        if (bodyReader.read() == -1) {
            // Empty body
            return null;
        }
        bodyReader.reset();
        return decodeJSON(response, type, bodyReader);
    } catch (JSONException jsonException) {
        if (jsonException.getCause() != null && jsonException.getCause() instanceof IOException) {
            throw (IOException) jsonException.getCause();
        }
        throw new DecodeException(response.status(), jsonException.getMessage(), response.request(), jsonException);
    }
}