Adding ServerSentEvents to Rest Southbound interface

Change-Id: I77411df608be8a1cab9d828db17202f88b969a0f
This commit is contained in:
Sean Condon 2018-07-30 16:00:10 +01:00
parent ca3e4f3a99
commit 5548ce618d
14 changed files with 591 additions and 7 deletions

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@ -33,8 +33,10 @@ import java.util.List;
import java.util.Set;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Consumer;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.sse.InboundSseEvent;
import static org.hamcrest.Matchers.notNullValue;
import static org.junit.Assert.assertThat;
@ -168,8 +170,24 @@ public class RestSBControllerMock implements RestSBController {
}
@Override
public <T> T post(DeviceId device, String request, InputStream payload,
MediaType mediaType, Class<T> responseClass) {
public <T> T post(DeviceId device, String request, InputStream payload,
MediaType mediaType, Class<T> responseClass) {
return null;
}
}
@Override
public void startServerSentEvents(DeviceId deviceId, String eventsUrl) {
return;
}
@Override
public int getServerSentEvents(DeviceId deviceId, String request,
Consumer<InboundSseEvent> onEvent, Consumer<Throwable> onError) {
return 204;
}
@Override
public int cancelServerSentEvents(DeviceId deviceId) {
return 200;
}
}

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@ -780,6 +780,15 @@ remote_jar (
visibility = [ 'PUBLIC' ],
)
remote_jar (
name = 'jersey-media-sse',
out = 'jersey-media-sse-2.26.jar',
url = 'mvn:org.glassfish.jersey.media:jersey-media-sse:jar:2.26',
sha1 = '61cfeb0df911585140f64f3369eb524e0e02f534',
maven_coords = 'org.glassfish.jersey.media:jersey-media-sse:2.26',
visibility = [ 'PUBLIC' ],
)
remote_jar (
name = 'jersey-server',
out = 'jersey-server-2.26.jar',

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@ -202,6 +202,7 @@
"jersey-container-servlet": "mvn:org.glassfish.jersey.containers:jersey-container-servlet:2.26",
"jersey-container-servlet-core": "mvn:org.glassfish.jersey.containers:jersey-container-servlet-core:2.26",
"jersey-media-multipart": "mvn:org.glassfish.jersey.media:jersey-media-multipart:2.26",
"jersey-media-sse": "mvn:org.glassfish.jersey.media:jersey-media-sse:2.26",
"jersey-server": "mvn:org.glassfish.jersey.core:jersey-server:2.26",
"jersey-hk2":"mvn:org.glassfish.jersey.inject:jersey-hk2:2.26",
"jersey-test-framework-core": "mvn:org.glassfish.jersey.test-framework:jersey-test-framework-core:2.26",

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@ -18,8 +18,10 @@ package org.onosproject.protocol.http;
import java.io.InputStream;
import java.util.Map;
import java.util.function.Consumer;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.sse.InboundSseEvent;
import org.onlab.packet.IpAddress;
import org.onosproject.net.DeviceId;
@ -125,7 +127,8 @@ public interface HttpSBController {
InputStream get(DeviceId device, String request, MediaType mediaType);
/**
* Does a HTTP POST request with specified parameters to the device.
* Does a HTTP POST request with specified parameters to the device and
* extracts an object of type T from the response entity field.
*
* @param <T> post return type
* @param device device to make the request to
@ -138,5 +141,27 @@ public interface HttpSBController {
*/
<T> T post(DeviceId device, String request, InputStream payload, MediaType mediaType, Class<T> responseClass);
/**
* Does a HTTP GET against a Server Sent Events (SSE_INBOUND) resource on the device.
*
* This is a low level function that can take callbacks.
* For a higher level function that emits events based on this callback
* see startServerSentEvents() in the RestSBController
*
* @param deviceId device to make the request to
* @param request url of the request
* @param onEvent A consumer of inbound SSE_INBOUND events
* @param onError A consumer of inbound SSE_INBOUND errors
* @return status Commonly used status codes defined by HTTP
*/
int getServerSentEvents(DeviceId deviceId, String request,
Consumer<InboundSseEvent> onEvent, Consumer<Throwable> onError);
/**
* Cancels a Server Sent Events listener to a device.
*
* @param deviceId device to cancel the listener for
* @return status Commonly used status codes defined by HTTP
*/
int cancelServerSentEvents(DeviceId deviceId);
}

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@ -45,6 +45,8 @@ import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import javax.ws.rs.sse.InboundSseEvent;
import javax.ws.rs.sse.SseEventSource;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
@ -57,6 +59,7 @@ import java.security.cert.X509Certificate;
import java.util.Base64;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Consumer;
import static com.google.common.base.Preconditions.checkNotNull;
@ -80,6 +83,7 @@ public class HttpSBControllerImpl implements HttpSBController {
private final Map<DeviceId, RestSBDevice> deviceMap = new ConcurrentHashMap<>();
private final Map<DeviceId, Client> clientMap = new ConcurrentHashMap<>();
private final Map<DeviceId, SseEventSource> sseEventSourceMap = new ConcurrentHashMap<>();
public Map<DeviceId, RestSBDevice> getDeviceMap() {
return deviceMap;
@ -89,6 +93,10 @@ public class HttpSBControllerImpl implements HttpSBController {
return clientMap;
}
public Map<DeviceId, SseEventSource> getSseEventSourceMap() {
return sseEventSourceMap;
}
@Override
public Map<DeviceId, RestSBDevice> getDevices() {
return ImmutableMap.copyOf(deviceMap);
@ -121,6 +129,7 @@ public class HttpSBControllerImpl implements HttpSBController {
public void removeDevice(DeviceId deviceId) {
clientMap.remove(deviceId);
deviceMap.remove(deviceId);
sseEventSourceMap.remove(deviceId);
}
@Override
@ -251,6 +260,58 @@ public class HttpSBControllerImpl implements HttpSBController {
return response.getStatus();
}
@Override
public int getServerSentEvents(DeviceId deviceId, String request,
Consumer<InboundSseEvent> onEvent,
Consumer<Throwable> onError) {
if (deviceId == null) {
log.warn("Device ID is null", request);
return Status.PRECONDITION_FAILED.getStatusCode();
}
if (request == null || request.isEmpty()) {
log.warn("Request cannot be empty", request);
return Status.PRECONDITION_FAILED.getStatusCode();
}
if (sseEventSourceMap.containsKey(deviceId)) {
log.warn("Device", deviceId, "is already listening to an SSE stream");
return Status.CONFLICT.getStatusCode();
}
WebTarget wt = getWebTarget(deviceId, request);
SseEventSource sseEventSource = SseEventSource.target(wt).build();
sseEventSource.register(onEvent, onError);
sseEventSource.open();
if (sseEventSource.isOpen()) {
sseEventSourceMap.put(deviceId, sseEventSource);
log.info("Opened Server Sent Events request to ", request, "on", deviceId);
while (sseEventSource.isOpen()) {
try {
Thread.sleep(1010);
System.out.println("Listening for SSEs");
} catch (InterruptedException e) {
log.error("Error", e);
}
}
return Status.NO_CONTENT.getStatusCode();
} else {
log.error("Unable to open Server Sent Events request to ", request, "to", deviceId);
return Status.INTERNAL_SERVER_ERROR.getStatusCode();
}
}
@Override
public int cancelServerSentEvents(DeviceId deviceId) {
if (sseEventSourceMap.containsKey(deviceId)) {
sseEventSourceMap.get(deviceId).close();
sseEventSourceMap.remove(deviceId);
return Status.OK.getStatusCode();
} else {
return Status.NOT_FOUND.getStatusCode();
}
}
private MediaType typeOfMediaType(String type) {
switch (type) {
case XML:

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@ -56,4 +56,22 @@ public interface RestSBController extends HttpSBController {
* @return the corresponding REST proxied device
*/
RestSBDevice getProxySBDevice(DeviceId deviceId);
/**
* Call on the Rest SB interface for a device to request ServerSentEvents from events URL.
*
* These events will be converted to ONOS events and forwarded to any registered listener
* through the EventDispatcher system. Drivers can implement listeners in their
* own particular way depending on the type of data expected.
*
* To register and unregister listeners use the addListener and removeListener
* methods. These listeners will get messages from all devices.
*
* To stop a particular device's event stream use the cancelServerSentEvents
* for that device.
*
* @param deviceId the id of the device exposed to ONOS
* @param eventsUrl The resource on the device that supplies an SSE_INBOUND stream
*/
void startServerSentEvents(DeviceId deviceId, String eventsUrl);
}

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@ -0,0 +1,25 @@
/*
* Copyright 2018-present Open Networking Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onosproject.protocol.rest;
import org.onosproject.event.EventListener;
/**
* Listener interface for Server Sent Events from Rest SB.
*/
public interface RestSBEventListener extends EventListener<RestSBServerSentEvent> {
}

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@ -0,0 +1,94 @@
/*
* Copyright 2018-present Open Networking Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onosproject.protocol.rest;
import org.onosproject.event.AbstractEvent;
import org.onosproject.net.DeviceId;
import javax.ws.rs.sse.InboundSseEvent;
import java.util.Objects;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Event received on the REST SB interface as ServerSentEvent (SSE_INBOUND).
*/
public class RestSBServerSentEvent extends AbstractEvent<RestSBServerSentEvent.Type, DeviceId> {
private String id;
private String comment;
private String data;
private String name;
/**
* SSE Event types supported.
*/
public enum Type {
SSE_INBOUND
}
public RestSBServerSentEvent(Type type, DeviceId deviceId, InboundSseEvent sseEvent) {
super(type, deviceId);
checkNotNull(sseEvent);
data = sseEvent.readData();
id = sseEvent.getId();
name = sseEvent.getName();
comment = sseEvent.getComment();
}
public String getData() {
return data;
}
public String getId() {
return id;
}
public String getComment() {
return comment;
}
public String getName() {
return name;
}
@Override
public String toString() {
return super.toString() + ", id=" + id + ", name=" + name + ", comment=" + comment;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
RestSBServerSentEvent that = (RestSBServerSentEvent) o;
return Objects.equals(id, that.id) &&
Objects.equals(comment, that.comment) &&
Objects.equals(data, that.data) &&
Objects.equals(name, that.name);
}
@Override
public int hashCode() {
return Objects.hash(id, comment, data, name);
}
}

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@ -2,6 +2,7 @@ COMPILE_DEPS = [
'//lib:CORE_DEPS',
'//lib:jersey-client',
'//lib:jersey-common',
'//lib:jersey-media-sse',
'//lib:httpclient-osgi',
'//lib:httpcore-osgi',
'//lib:javax.ws.rs-api',
@ -11,7 +12,13 @@ COMPILE_DEPS = [
'//protocols/rest/api:onos-protocols-rest-api',
]
TEST_DEPS = [
'//lib:TEST_REST',
'//core/common:onos-core-common-tests'
]
osgi_jar_with_tests (
deps = COMPILE_DEPS,
test_deps = TEST_DEPS
)

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@ -2,6 +2,7 @@ COMPILE_DEPS = CORE_DEPS + [
"@jersey_client//jar",
"@jersey_server//jar",
"@jersey_common//jar",
"@jersey_media_sse//jar",
"@jersey_security//jar",
"@httpclient_osgi//jar",
"@httpcore_osgi//jar",
@ -12,6 +13,11 @@ COMPILE_DEPS = CORE_DEPS + [
"//protocols/rest/api:onos-protocols-rest-api",
]
TEST_DEPS = TEST_REST + [
"//core/common:onos-core-common-tests"
]
osgi_jar_with_tests(
deps = COMPILE_DEPS,
test_deps = TEST_DEPS,
)

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@ -39,6 +39,10 @@
<version>${project.version}</version>
<type>bundle</type>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-media-sse</artifactId>
</dependency>
</dependencies>
<build>

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@ -20,15 +20,23 @@ import com.google.common.collect.ImmutableSet;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Deactivate;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.ReferenceCardinality;
import org.apache.felix.scr.annotations.Service;
import org.onosproject.event.EventDeliveryService;
import org.onosproject.event.ListenerRegistry;
import org.onosproject.event.ListenerService;
import org.onosproject.net.DeviceId;
import org.onosproject.protocol.http.ctl.HttpSBControllerImpl;
import org.onosproject.protocol.rest.RestSBController;
import org.onosproject.protocol.rest.RestSBDevice;
import org.onosproject.protocol.rest.RestSBEventListener;
import org.onosproject.protocol.rest.RestSBServerSentEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.sse.InboundSseEvent;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
@ -39,15 +47,23 @@ import java.util.stream.Collectors;
*/
@Component(immediate = true)
@Service
public class RestSBControllerImpl extends HttpSBControllerImpl implements RestSBController {
public class RestSBControllerImpl extends HttpSBControllerImpl
implements RestSBController, ListenerService<RestSBServerSentEvent, RestSBEventListener> {
private static final Logger log =
LoggerFactory.getLogger(RestSBControllerImpl.class);
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected EventDeliveryService eventDispatcher;
protected final ListenerRegistry<RestSBServerSentEvent, RestSBEventListener> listenerRegistry =
new ListenerRegistry<>();
private final Map<DeviceId, RestSBDevice> proxiedDeviceMap = new ConcurrentHashMap<>();
@Activate
public void activate() {
eventDispatcher.addSink(RestSBServerSentEvent.class, listenerRegistry);
log.info("Started");
}
@ -55,6 +71,7 @@ public class RestSBControllerImpl extends HttpSBControllerImpl implements RestSB
public void deactivate() {
this.getClientMap().clear();
this.getDeviceMap().clear();
this.getSseEventSourceMap().clear();
log.info("Stopped");
}
@ -118,4 +135,36 @@ public class RestSBControllerImpl extends HttpSBControllerImpl implements RestSB
}
}
@Override
public void startServerSentEvents(DeviceId deviceId, String eventsUrl) {
this.getServerSentEvents(deviceId, eventsUrl,
(event) -> sendEvent(event, deviceId),
(error) -> log.error("Unable to handle {} SSEvent from {}. {}",
eventsUrl, deviceId, error));
}
@Override
public void addListener(RestSBEventListener listener) {
listenerRegistry.addListener(listener);
}
@Override
public void removeListener(RestSBEventListener listener) {
listenerRegistry.removeListener(listener);
}
/**
* Safely posts the specified event to the local event dispatcher.
* If there is no event dispatcher or if the event is null, this method
* is a noop.
* @param sseEvent event to be posted; may be null
* @param deviceId the device that sent the event
*/
protected void sendEvent(InboundSseEvent sseEvent, DeviceId deviceId) {
if (sseEvent != null && eventDispatcher != null) {
eventDispatcher.post(new RestSBServerSentEvent(
RestSBServerSentEvent.Type.SSE_INBOUND, deviceId, sseEvent));
}
}
}

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@ -16,32 +16,156 @@
package org.onosproject.protocol.rest.ctl;
import org.apache.commons.io.IOUtils;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.test.JerseyTest;
import org.glassfish.jersey.test.TestProperties;
import org.junit.Before;
import org.junit.Test;
import org.onlab.junit.TestUtils;
import org.onlab.packet.IpAddress;
import org.onosproject.protocol.rest.DefaultRestSBDevice;
import org.onosproject.protocol.rest.RestSBDevice;
import org.onosproject.common.event.impl.TestEventDispatcher;
import org.onosproject.protocol.rest.RestSBEventListener;
import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.PATCH;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Application;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.sse.InboundSseEvent;
import javax.ws.rs.sse.OutboundSseEvent;
import javax.ws.rs.sse.Sse;
import javax.ws.rs.sse.SseEventSink;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Consumer;
import static org.junit.Assert.*;
/**
* Basic testing for RestSBController.
*/
public class RestSBControllerImplTest {
public class RestSBControllerImplTest extends JerseyTest {
private static final String SAMPLE_PAYLOAD = "{ \"msg\": \"ONOS Rocks!\" }";
RestSBControllerImpl controller;
RestSBDevice device1;
RestSBDevice device2;
/**
* Mockup of an arbitrary device.
*/
@Path("testme")
public static class HelloResource {
@POST
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public Response post(InputStream payload) throws IOException {
String responseText = IOUtils.toString(payload, StandardCharsets.UTF_8);
if (responseText.equalsIgnoreCase(SAMPLE_PAYLOAD)) {
return Response.ok().build();
}
return Response.status(Response.Status.EXPECTATION_FAILED).build();
}
@POST
@Path("testpostreturnstring")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public Response postReturnString(InputStream payload) throws IOException {
String responseText = IOUtils.toString(payload, StandardCharsets.UTF_8);
if (responseText.equalsIgnoreCase(SAMPLE_PAYLOAD)) {
return Response.ok().entity("OK").build();
}
return Response.status(Response.Status.EXPECTATION_FAILED).entity("Failed").build();
}
@PUT
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public Response put(InputStream payload) throws IOException {
String responseText = IOUtils.toString(payload, StandardCharsets.UTF_8);
if (responseText.equalsIgnoreCase(SAMPLE_PAYLOAD)) {
return Response.ok().build();
}
return Response.status(Response.Status.EXPECTATION_FAILED).build();
}
@PATCH
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public Response patch(InputStream payload) throws IOException {
String responseText = IOUtils.toString(payload, StandardCharsets.UTF_8);
if (responseText.equalsIgnoreCase(SAMPLE_PAYLOAD)) {
return Response.ok().build();
}
return Response.status(Response.Status.EXPECTATION_FAILED).build();
}
@GET
public String getHello() {
return SAMPLE_PAYLOAD;
}
@DELETE
public int delete() {
return Response.Status.NO_CONTENT.getStatusCode();
}
@GET
@Path("server-sent-events")
@Produces(MediaType.SERVER_SENT_EVENTS)
public void getServerSentEvents(@Context SseEventSink eventSink, @Context Sse sse) throws InterruptedException {
new Thread(() -> {
try {
for (int i = 0; i < 10; i++) {
// ... code that waits 0.1 second
Thread.sleep(100L);
final OutboundSseEvent event = sse.newEventBuilder()
.id(String.valueOf(i))
.name("message-to-rest-sb")
.data(String.class, "Test message " + i + "!")
.build();
eventSink.send(event);
System.out.println("Message " + i + " sent");
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}).start();
}
}
@Override
protected Application configure() {
set(TestProperties.CONTAINER_PORT, 8080);
return new ResourceConfig(HelloResource.class);
}
@Before
public void setUp() {
public void setUpTest() {
controller = new RestSBControllerImpl();
TestUtils.setField(controller, "eventDispatcher", new TestEventDispatcher());
controller.activate();
device1 = new DefaultRestSBDevice(IpAddress.valueOf("127.0.0.1"), 8080, "foo", "bar", "http", null, true);
device2 = new DefaultRestSBDevice(IpAddress.valueOf("127.0.0.2"), 8080, "foo1", "bar2", "http", null, true);
controller.addDevice(device1);
}
@Test
@ -56,4 +180,134 @@ public class RestSBControllerImplTest {
controller.removeDevice(device2.deviceId());
assertFalse("Device2 not removed", controller.getDevices().containsValue(device2));
}
/**
* Tests the post function of the REST SB Controller.
*/
@Test
public void testPost() {
InputStream payload = new ByteArrayInputStream(SAMPLE_PAYLOAD.getBytes(StandardCharsets.UTF_8));
int response = controller.post(device1.deviceId(), "/testme", payload, MediaType.APPLICATION_JSON_TYPE);
assertEquals(HttpURLConnection.HTTP_OK, response);
}
/**
* Tests the put function of the REST SB Controller.
*/
@Test
public void testPut() {
InputStream payload = new ByteArrayInputStream(SAMPLE_PAYLOAD.getBytes(StandardCharsets.UTF_8));
int response = controller.put(device1.deviceId(), "/testme", payload, MediaType.APPLICATION_JSON_TYPE);
assertEquals(HttpURLConnection.HTTP_OK, response);
}
@Test
public void testPatch() {
InputStream payload = new ByteArrayInputStream(SAMPLE_PAYLOAD.getBytes(StandardCharsets.UTF_8));
int response = controller.patch(device1.deviceId(), "/testme", payload, MediaType.APPLICATION_JSON_TYPE);
assertEquals(HttpURLConnection.HTTP_OK, response);
}
/**
* Tests the delete function of the REST SB Controller.
*/
@Test
public void testDelete() {
int response = controller.delete(device1.deviceId(), "/testme", null, null);
assertEquals(HttpURLConnection.HTTP_OK, response);
}
/**
* Tests the get function of the REST SB Controller.
*/
@Test
public void testGet() throws IOException {
InputStream payload = controller.get(device1.deviceId(), "/testme", MediaType.APPLICATION_JSON_TYPE);
String responseText = IOUtils.toString(payload, StandardCharsets.UTF_8);
assertEquals(SAMPLE_PAYLOAD, responseText);
}
/**
* Tests the post function of the REST SB Controller.
*/
@Test
public void testPostReturnString() {
InputStream payload = new ByteArrayInputStream(SAMPLE_PAYLOAD.getBytes(StandardCharsets.UTF_8));
String result = controller.post(device1.deviceId(), "/testme/testpostreturnstring",
payload, MediaType.APPLICATION_JSON_TYPE, String.class);
assertEquals("OK", result);
}
/**
* Tests the low level getServerSentEvents function of the REST SB Controller.
*
* Note: If the consumer throws an error it will not be propagated back up
* to here - instead the source will go in to error and no more callbacks
* will be executed
*/
@Test
public void testGetServerSentEvents() {
Consumer<InboundSseEvent> sseEventConsumer = (event) -> {
System.out.println("ServerSentEvent received: " + event);
assertEquals("message-to-rest-sb", event.getName());
// Just to show it works we stop before the last message is sent
if (Integer.parseInt(event.getId()) == 8) {
controller.cancelServerSentEvents(device1.deviceId());
}
};
Consumer<Throwable> sseError = (error) -> {
System.err.println(error);
controller.cancelServerSentEvents(device1.deviceId());
//fail(error.toString()); //Does nothing as it's in lambda scope
};
int response = controller.getServerSentEvents(device1.deviceId(),
"/testme/server-sent-events",
sseEventConsumer,
sseError
);
assertEquals(204, response);
}
/**
* Test of cancelling of events from a device - in this case there should not be any.
*/
@Test
public void testCancelServerSentEvents() {
assertEquals(404, controller.cancelServerSentEvents(device1.deviceId()));
}
/**
* Test the high level API for Server Sent Events.
*/
@Test
public void testStartServerSentEvents() {
AtomicInteger listener1Count = new AtomicInteger();
AtomicInteger listener2Count = new AtomicInteger();
RestSBEventListener listener1 = event -> {
System.out.println("Event on Lsnr1: " + event);
listener1Count.incrementAndGet();
if (Integer.parseInt(event.getId()) == 8) {
controller.cancelServerSentEvents(device1.deviceId());
}
};
RestSBEventListener listener2 = event -> {
listener2Count.incrementAndGet();
System.out.println("Event on Lsnr2: " + event);
};
controller.addListener(listener1);
controller.addListener(listener2);
controller.startServerSentEvents(device1.deviceId(), "/testme/server-sent-events");
controller.removeListener(listener1);
controller.removeListener(listener2);
assertEquals(9, listener1Count.get());
assertEquals(9, listener2Count.get());
}
}

View File

@ -510,6 +510,12 @@ def generated_maven_jars():
sha1 = "c7ea0a5819e4688317024c9f4b6e3de54f9d0f3d",
)
native.maven_jar(
name = "jersey_media_sse",
artifact = "org.glassfish.jersey.media:jersey-media-sse:2.26",
sha1 = "61cfeb0df911585140f64f3369eb524e0e02f534",
)
native.maven_jar(
name = "jersey_server",
artifact = "org.glassfish.jersey.core:jersey-server:2.26",
@ -1658,6 +1664,12 @@ def generated_java_libraries():
exports = ["@jersey_media_multipart//jar"],
)
native.java_library(
name = "jersey_media_sse",
visibility = ["//visibility:public"],
exports = ["@jersey_media_sse//jar"],
)
native.java_library(
name = "jersey_server",
visibility = ["//visibility:public"],
@ -2478,6 +2490,7 @@ artifact_map["@jersey_container_jetty_http//jar"] = "mvn:org.glassfish.jersey.co
artifact_map["@jersey_container_servlet//jar"] = "mvn:org.glassfish.jersey.containers:jersey-container-servlet:jar:2.26"
artifact_map["@jersey_container_servlet_core//jar"] = "mvn:org.glassfish.jersey.containers:jersey-container-servlet-core:jar:2.26"
artifact_map["@jersey_media_multipart//jar"] = "mvn:org.glassfish.jersey.media:jersey-media-multipart:jar:2.26"
artifact_map["@jersey_media_sse//jar"] = "mvn:org.glassfish.jersey.media:jersey-media-sse:jar:2.26"
artifact_map["@jersey_server//jar"] = "mvn:org.glassfish.jersey.core:jersey-server:jar:2.26"
artifact_map["@jersey_hk2//jar"] = "mvn:org.glassfish.jersey.inject:jersey-hk2:jar:2.26"
artifact_map["@jersey_test_framework_core//jar"] = "mvn:org.glassfish.jersey.test-framework:jersey-test-framework-core:jar:NON-OSGI:2.26"