/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 demo.jaxrs.sse;
import java.util.Date;
import java.util.Random;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.sse.OutboundSseEvent;
import javax.ws.rs.sse.OutboundSseEvent.Builder;
import javax.ws.rs.sse.Sse;
import javax.ws.rs.sse.SseEventSink;
@Path("/stats")
public class StatsRestServiceImpl {
private static final Random RANDOM = new Random();
private Sse sse;
@Context
public void setSse(Sse sse) {
this.sse = sse;
}
@GET
@Path("sse/{id}")
@Produces(MediaType.SERVER_SENT_EVENTS)
public void stats(@Context SseEventSink sink, @PathParam("id") final String id) {
new Thread() {
public void run() {
try {
final Builder builder = sse.newEventBuilder();
sink.send(createStatsEvent(builder.name("stats"), 1));
Thread.sleep(1000);
sink.send(createStatsEvent(builder.name("stats"), 2));
Thread.sleep(1000);
sink.send(createStatsEvent(builder.name("stats"), 3));
Thread.sleep(1000);
sink.send(createStatsEvent(builder.name("stats"), 4));
Thread.sleep(1000);
sink.send(createStatsEvent(builder.name("stats"), 5));
Thread.sleep(1000);
sink.send(createStatsEvent(builder.name("stats"), 6));
Thread.sleep(1000);
sink.send(createStatsEvent(builder.name("stats"), 7));
Thread.sleep(1000);
sink.send(createStatsEvent(builder.name("stats"), 8));
sink.close();
} catch (final Exception e) {
e.printStackTrace();
}
}
}.start();
}
private static OutboundSseEvent createStatsEvent(final OutboundSseEvent.Builder builder, final int eventId) {
return builder
.id("" + eventId)
.data(Stats.class, new Stats(new Date().getTime(), RANDOM.nextInt(100)))
.mediaType(MediaType.APPLICATION_JSON_TYPE)
.build();
}
}