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package org.glassfish.jersey.tests.e2e.client;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Arrays;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ws.rs.GET;
import javax.ws.rs.InternalServerErrorException;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.ProcessingException;
import javax.ws.rs.QueryParam;
import javax.ws.rs.client.Entity;
import javax.ws.rs.core.Application;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriBuilder;
import org.glassfish.jersey.client.ClientConfig;
import org.glassfish.jersey.client.ClientProperties;
import org.glassfish.jersey.client.RequestEntityProcessing;
import org.glassfish.jersey.message.internal.ReaderWriter;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.test.JerseyTest;
import org.junit.Assert;
import org.junit.Ignore;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import com.google.common.util.concurrent.SettableFuture;
/**
* Reproducer for JERSEY-2705. Client side entity InputStream exception
* in chunked mode should not lead to the same behavior on the server side,
* as if no exception occurred at all.
*
* @author Jakub Podlesak (jakub.podlesak at oracle.com)
* @author Marek Potociar (marek.potociar at oracle.com)
*/
public class ChunkedInputStreamClosedPrematurelyTest extends JerseyTest {
private static final Logger LOGGER = Logger.getLogger(ChunkedInputStreamClosedPrematurelyTest.class.getName());
private static final Exception NO_EXCEPTION = new Exception("No exception.");
private static final AtomicInteger NEXT_REQ_ID = new AtomicInteger(0);
private static final String REQ_ID_PARAM_NAME = "test-req-id";
private static final int BYTES_TO_SEND = 1024 * 1024 + 13;
@Path("/test")
@SuppressWarnings({"ThrowableResultOfMethodCallIgnored", "JavaDoc"})
public static class TestResource {
private static final ConcurrentMap<String, SettableFuture<Exception>> REQUEST_MAP = new ConcurrentHashMap<>();
@QueryParam(REQ_ID_PARAM_NAME)
private String reqId;
@POST
public String post(InputStream is) {
final byte[] buffer = new byte[4096];
int readTotal = 0;
Exception thrown = NO_EXCEPTION;
try {
int read;
while ((read = is.read(buffer)) > -1) {
readTotal += read;
}
} catch (Exception ex) {
thrown = ex;
}
if (!getFutureFor(reqId).set(thrown)) {
LOGGER.log(Level.WARNING,
"Unable to set stream processing exception into the settable future instance for request id " + reqId,
thrown);
}
return Integer.toString(readTotal);
}
@Path("/requestWasMade")
@GET
public Boolean getRequestWasMade() {
// add a new future for the request if not there yet to avoid race conditions with POST processing
final SettableFuture<Exception> esf = getFutureFor(reqId);
try {
// wait for up to three second for a request to be made;
// there is always a value, if set...
return esf.get(3, TimeUnit.SECONDS) != null;
} catch (InterruptedException | TimeoutException | ExecutionException e) {
throw new InternalServerErrorException("Post request processing has timed out for request id " + reqId, e);
}
}
@Path("/requestCausedException")
@GET
public Boolean getRequestCausedException() {
final SettableFuture<Exception> esf = getFutureFor(reqId);
try {
return esf.get(3, TimeUnit.SECONDS) != NO_EXCEPTION;
} catch (InterruptedException | ExecutionException | TimeoutException e) {
throw new InternalServerErrorException("Post request processing has timed out for request id " + reqId, e);
}
}
private SettableFuture<Exception> getFutureFor(String key) {
final SettableFuture<Exception> esf = SettableFuture.create();
final SettableFuture<Exception> oldEsf = REQUEST_MAP.putIfAbsent(key, esf);
return (oldEsf != null) ? oldEsf : esf;
}
}
@Override
protected Application configure() {
return new ResourceConfig(TestResource.class);
}
@Override
protected void configureClient(ClientConfig config) {
config.property(ClientProperties.REQUEST_ENTITY_PROCESSING, RequestEntityProcessing.CHUNKED);
config.property(ClientProperties.CHUNKED_ENCODING_SIZE, 7);
}
/**
* A sanity test to check the normal use case is working as expected.
*/
@Test
public void testUninterrupted() {
final String testReqId = nextRequestId("testUninterrupted");
Response testResponse = target("test").queryParam(REQ_ID_PARAM_NAME, testReqId)
.request().post(Entity.entity("0123456789ABCDEF", MediaType.APPLICATION_OCTET_STREAM));
assertEquals("Unexpected response status code.", 200, testResponse.getStatus());
assertEquals("Unexpected response entity.", "16", testResponse.readEntity(String.class));
assertTrue("POST request " + testReqId + " has not reached the server.",
target("test").path("requestWasMade").queryParam(REQ_ID_PARAM_NAME, testReqId)
.request().get(Boolean.class));
assertFalse("POST request " + testReqId + " has caused an unexpected exception on the server.",
target("test").path("requestCausedException").queryParam(REQ_ID_PARAM_NAME, testReqId)
.request().get(Boolean.class));
}
/**
* This test simulates how Jersey Client should behave after JERSEY-2705 gets fixed.
*
* @throws Exception in case the test fails to execute.
*/
@Test
public void testInterruptedJerseyHttpUrlConnection() throws Exception {
final String testReqId = nextRequestId("testInterruptedJerseyHttpUrlConnection");
URL postUrl = UriBuilder.fromUri(getBaseUri()).path("test").queryParam(REQ_ID_PARAM_NAME, testReqId).build().toURL();
final HttpURLConnection connection = (HttpURLConnection) postUrl.openConnection();
try {
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", MediaType.APPLICATION_OCTET_STREAM);
connection.setDoOutput(true);
connection.setChunkedStreamingMode(1024);
OutputStream entityStream = connection.getOutputStream();
ReaderWriter.writeTo(new ExceptionThrowingInputStream(BYTES_TO_SEND), entityStream);
Assert.fail("Expected ProcessingException has not been thrown.");
} catch (IOException expected) {
// so far so good
} finally {
connection.disconnect();
}
// we should make it to the server, but there the exceptional behaviour should get noticed
assertTrue("POST request " + testReqId + " has not reached the server.",
target("test").path("requestWasMade").queryParam(REQ_ID_PARAM_NAME, testReqId).request().get(Boolean.class));
assertTrue("POST request " + testReqId + " did not cause an expected exception on the server.",
target("test").path("requestCausedException").queryParam(REQ_ID_PARAM_NAME, testReqId)
.request().get(Boolean.class));
}
/**
* This test reproduces the Jersey Client behavior reported in JERSEY-2705.
*/
@Ignore
@Test
public void testInterruptedJerseyClient() {
final String testReqId = nextRequestId("testInterruptedJerseyClient");
try {
target("test").queryParam(REQ_ID_PARAM_NAME, testReqId).request()
.post(Entity.entity(new ExceptionThrowingInputStream(BYTES_TO_SEND), MediaType.APPLICATION_OCTET_STREAM));
Assert.fail("Expected ProcessingException has not been thrown.");
} catch (ProcessingException expected) {
// so far so good
}
// we should make it to the server, but there the exceptional behaviour should get noticed
assertTrue("POST request " + testReqId + " has not reached the server.",
target("test").path("requestWasMade").queryParam(REQ_ID_PARAM_NAME, testReqId).request().get(Boolean.class));
assertTrue("POST request " + testReqId + " did not cause an expected exception on the server.",
target("test").path("requestCausedException").queryParam(REQ_ID_PARAM_NAME, testReqId)
.request().get(Boolean.class));
}
private static String nextRequestId(String testMethodName) {
return String.format(testMethodName + "-%03d", NEXT_REQ_ID.getAndIncrement());
}
/**
* InputStream implementation that allows "reading" as many bytes as specified by threshold constructor parameter.
* Throws an IOException if read operation is attempted after the threshold is exceeded.
*/
private class ExceptionThrowingInputStream extends InputStream {
private final int threshold;
private int offset = 0;
/**
* Get me a new stream that throws exception.
*
* @param threshold this number of bytes will be read all right
*/
public ExceptionThrowingInputStream(int threshold) {
this.threshold = threshold;
}
@Override
public int read() throws IOException {
if (offset++ < threshold) {
return 'A';
} else {
throw new IOException("stream closed");
}
}
@Override
public int read(byte[] b, int off, int len) throws IOException {
offset += len;
if (offset < threshold) {
Arrays.fill(b, off, off + len, (byte) 'A');
return len;
} else {
throw new IOException("Stream closed");
}
}
}
}