RestEasy Client 3.0.* handling large content - resteasy

Question

We are using RestEasy Client version 3.0*.
We are trying to post very large content in the request body.
When the content length is less than 1 MB the following code is running correctly.
When the content length is very large (about 500 MB) the request is getting stuck.
The code is looking like this:
InputStream inputStream = new FileInputStream(tempFile);
ResteasyClient client = new ResteasyClientBuilder().build();
ResteasyWebTarget target = client.target("<SomeUrl>");
response = target.request(MediaType.WILDCARD).post(Entity.entity(inputStream, MediaType.WILDCARD));
How should I change the code to support large content?
After a week...
Since nobody answered me - I used the good old Spring solution (see below).
Is Spring better than RestEasy client?
InputStream inputStream = new FileInputStream(tempFile);
SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
factory.setBufferRequestBody(false);
RestTemplate r = new RestTemplate(factory);
RequestCallback requestCallback = new RequestCallback() {
#Override
public void doWithRequest(ClientHttpRequest clientHttpRequest) throws IOException {
List<org.springframework.http.MediaType> MEDIA_TYPES = Collections.unmodifiableList(Arrays.asList(org.springframework.http.MediaType.ALL));
clientHttpRequest.getHeaders().setAccept(MEDIA_TYPES);
OutputStream requestOutputStream = clientHttpRequest.getBody();
try {
int copiedBytes = IOUtils.copy(inputStream, requestOutputStream);
} finally {
IOUtils.closeQuietly(requestOutputStream);
}
}
};
ResponseExtractor<Response> responseExtractor = new ResponseExtractor<Response>() {
#Override
public Response extractData(ClientHttpResponse response) throws IOException {
return Response.status(response.getRawStatusCode()).build();
}
};
response = r.execute(url, HttpMethod.POST, requestCallback, responseExtractor);

Answer 1

I guess in Spring 4.0.1 you can use Apache HTTP client and HttpComponentsClientHttpRequestFactory instead of SimpleClientHttpRequestFactory. Here is the original note: SPR-10728
<bean id="restTemplateStreaming" class="org.springframework.web.client.RestTemplate">
<constructor-arg>
<bean class="org.springframework.http.client.HttpComponentsClientHttpRequestFactory">
<property name="bufferRequestBody" value="false" />
<property name="httpClient">
<bean class="com.spotfire.server.http.spring.HttpClientFactory">
<property name="clientBuilder">
<bean class="org.apache.http.impl.client.HttpClientBuilder">
<property name="connectionManager" ref="poolingHttpClientConnectionManager" />
<property name="redirectStrategy">
<bean class="org.apache.http.impl.client.LaxRedirectStrategy" />
</property>
</bean>
</property>
</bean>
</property>
</bean>
</constructor-arg>
</bean>
Note the
However callback implementation changes as well. You no longer can call clientHttpRequest.getBody();
Instead you have to use a bit convoluted structure as shown below:
class StreamingRequestCallback implements RequestCallback {
private final InputStream inputStream;
StreamingRequestCallback(InputStream inputStream) {
this.inputStream = inputStream;
}
#Override
public void doWithRequest(final ClientHttpRequest request) throws IOException {
request.getHeaders().add("Content-type", MediaType.APPLICATION_OCTET_STREAM_VALUE);
((StreamingHttpOutputMessage) request).setBody(new StreamingHttpOutputMessage.Body() {
#Override
public void writeTo(final OutputStream outputStream) throws IOException {
IOUtils.copy(inputStream, outputStream);
}
});
}
};