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package org.glassfish.jersey.apache.connector;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.logging.Logger;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.ServerErrorException;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.Application;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import javax.ws.rs.core.StreamingOutput;
import org.glassfish.jersey.client.ClientConfig;
import org.glassfish.jersey.logging.LoggingFeature;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.test.JerseyTest;
import org.junit.Assert;
import org.junit.Test;
/**
* The LargeDataTest reproduces a problem when bytes of large data sent are incorrectly sent.
* As a result, the request body is different than what was sent by the client.
* <p>
* In order to be able to inspect the request body, the generated data is a sequence of numbers
* delimited with new lines. Such as
* <pre><code>
* 1
* 2
* 3
*
* ...
*
* 57234
* 57235
* 57236
*
* ...
* </code></pre>
* It is also possible to send the data to netcat: {@code nc -l 8080} and verify the problem is
* on the client side.
*
* @author Stepan Vavra (stepan.vavra at oracle.com)
* @author Marek Potociar (marek.potociar at oracle.com)
*/
public class LargeDataTest extends JerseyTest {
private static final Logger LOGGER = Logger.getLogger(LargeDataTest.class.getName());
private static final int LONG_DATA_SIZE = 1_000_000; // for large set around 5GB, try e.g.: 536_870_912;
private static volatile Throwable exception;
private static StreamingOutput longData(long sequence) {
return out -> {
long offset = 0;
while (offset < sequence) {
out.write(Long.toString(offset).getBytes());
out.write('\n');
offset++;
}
};
}
@Override
protected Application configure() {
ResourceConfig config = new ResourceConfig(HttpMethodResource.class);
config.register(new LoggingFeature(LOGGER, LoggingFeature.Verbosity.HEADERS_ONLY));
return config;
}
@Override
protected void configureClient(ClientConfig config) {
config.connectorProvider(new ApacheConnectorProvider());
}
@Test
public void postWithLargeData() throws Throwable {
WebTarget webTarget = target("test");
Response response = webTarget.request().post(Entity.entity(longData(LONG_DATA_SIZE), MediaType.TEXT_PLAIN_TYPE));
try {
if (exception != null) {
// the reason to throw the exception is that IntelliJ gives you an option to compare the expected with the actual
throw exception;
}
Assert.assertEquals("Unexpected error: " + response.getStatus(),
Status.Family.SUCCESSFUL,
response.getStatusInfo().getFamily());
} finally {
response.close();
}
}
@Path("/test")
public static class HttpMethodResource {
@POST
public Response post(InputStream content) {
try {
longData(LONG_DATA_SIZE).write(new OutputStream() {
private long position = 0;
// private long mbRead = 0;
@Override
public void write(final int generated) throws IOException {
int received = content.read();
if (received != generated) {
throw new IOException("Bytes don't match at position " + position
+ ": received=" + received
+ ", generated=" + generated);
}
position++;
// if (position % (1024 * 1024) == 0) {
// mbRead++;
// System.out.println("MB read: " + mbRead);
// }
}
});
} catch (IOException e) {
exception = e;
throw new ServerErrorException(e.getMessage(), 500, e);
}
return Response.ok().build();
}
}
}