StreamController.java

/*
 * Copyright 2016 the original author or authors.
 *
 * 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 controllers;

import play.mvc.Controller;
import play.mvc.Result;

import org.glowroot.agent.it.harness.TraceEntryMarker;

public class StreamController extends Controller {

    public Result stream() {
        Chunks<String> chunks = StringChunks.whenReady(
                StreamController::registerOutChannelSomewhere);
        return ok(chunks);
    }

    public static void registerOutChannelSomewhere(Chunks.Out<String> out) {
        out.write("kiki");
        try {
            Thread.sleep(100);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
        out.write("foo");
        out.write("bar");
        new CreateTraceEntry().traceEntryMarker();
        out.close();
    }

    private static class CreateTraceEntry implements TraceEntryMarker {
        @Override
        public void traceEntryMarker() {}
    }
}