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https://github.com/apache/camel-k-runtime/issues/326
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214 changes: 214 additions & 0 deletions
214
...knative-http/src/test/java/org/apache/camel/component/knative/http/KnativeHttpServer.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,214 @@ | ||
| /* | ||
| * 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 org.apache.camel.component.knative.http; | ||
|
|
||
| import java.util.concurrent.BlockingQueue; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import java.util.concurrent.CountDownLatch; | ||
| import java.util.concurrent.ExecutorService; | ||
| import java.util.concurrent.Future; | ||
| import java.util.concurrent.LinkedBlockingQueue; | ||
| import java.util.concurrent.TimeUnit; | ||
|
|
||
| import io.vertx.core.Handler; | ||
| import io.vertx.core.Vertx; | ||
| import io.vertx.core.http.HttpServer; | ||
| import io.vertx.core.http.HttpServerRequest; | ||
| import io.vertx.ext.web.Router; | ||
| import io.vertx.ext.web.RoutingContext; | ||
| import io.vertx.ext.web.handler.BodyHandler; | ||
| import org.apache.camel.CamelContext; | ||
| import org.apache.camel.component.platform.http.PlatformHttpConstants; | ||
| import org.apache.camel.support.service.ServiceSupport; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| public class KnativeHttpServer extends ServiceSupport { | ||
| private static final Logger LOGGER = LoggerFactory.getLogger(KnativeHttpServer.class); | ||
|
|
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| private final CamelContext context; | ||
| private final String host; | ||
| private final int port; | ||
| private final String path; | ||
|
|
||
| private Vertx vertx; | ||
| private Router router; | ||
| private ExecutorService executor; | ||
| private HttpServer server; | ||
| private BlockingQueue<HttpServerRequest> requests; | ||
| private Handler<RoutingContext> handler; | ||
|
|
||
| public KnativeHttpServer(CamelContext context, int port) { | ||
| this(context, "localhost", port, "/", null); | ||
| } | ||
|
|
||
| public KnativeHttpServer(CamelContext context, int port, Handler<RoutingContext> handler) { | ||
| this(context, "localhost", port, "/", handler); | ||
| } | ||
|
|
||
| public KnativeHttpServer(CamelContext context, String host, int port, String path) { | ||
| this(context, host, port, path, null); | ||
| } | ||
|
|
||
| public KnativeHttpServer(CamelContext context, String host, int port, String path, Handler<RoutingContext> handler) { | ||
| this.context = context; | ||
| this.host = host; | ||
| this.port = port; | ||
| this.path = path; | ||
| this.requests = new LinkedBlockingQueue<>(); | ||
| this.handler = handler != null | ||
| ? handler | ||
| : event -> { | ||
| event.response().setStatusCode(200); | ||
| event.response().end(); | ||
| }; | ||
| } | ||
|
|
||
| public HttpServerRequest poll(int timeout, TimeUnit unit) throws InterruptedException { | ||
| return requests.poll(timeout, unit); | ||
| } | ||
|
|
||
| @Override | ||
| protected void doStart() throws Exception { | ||
| this.executor = context.getExecutorServiceManager().newSingleThreadExecutor(this, "knative-http-server"); | ||
| this.vertx = Vertx.vertx(); | ||
| this.server = vertx.createHttpServer(); | ||
| this.router = Router.router(vertx); | ||
| this.router.route(path) | ||
| .handler(event -> { | ||
| event.request().resume(); | ||
| BodyHandler.create().handle(event); | ||
| }) | ||
| .handler(event -> { | ||
| this.requests.offer(event.request()); | ||
| event.next(); | ||
| }) | ||
| .handler(handler); | ||
|
|
||
| CompletableFuture.runAsync( | ||
| () -> { | ||
| CountDownLatch latch = new CountDownLatch(1); | ||
| server.requestHandler(router).listen(port, host, result -> { | ||
| try { | ||
| if (result.failed()) { | ||
| LOGGER.warn("Failed to start Vert.x HttpServer on {}:{}, reason: {}", | ||
| host, | ||
| port, | ||
| result.cause().getMessage() | ||
| ); | ||
|
|
||
| throw new RuntimeException(result.cause()); | ||
| } | ||
|
|
||
| LOGGER.info("Vert.x HttpServer started on {}:{}", host, port); | ||
| } finally { | ||
| latch.countDown(); | ||
| } | ||
| }); | ||
|
|
||
| try { | ||
| latch.await(); | ||
| } catch (InterruptedException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| }, | ||
| executor | ||
| ).toCompletableFuture().join(); | ||
| } | ||
|
|
||
| @Override | ||
| protected void doStop() throws Exception { | ||
| try { | ||
| if (server != null) { | ||
| CompletableFuture.runAsync( | ||
| () -> { | ||
| CountDownLatch latch = new CountDownLatch(1); | ||
|
|
||
| // remove the platform-http component | ||
| context.removeComponent(PlatformHttpConstants.PLATFORM_HTTP_COMPONENT_NAME); | ||
|
|
||
| server.close(result -> { | ||
| try { | ||
| if (result.failed()) { | ||
| LOGGER.warn("Failed to close Vert.x HttpServer reason: {}", | ||
| result.cause().getMessage() | ||
| ); | ||
|
|
||
| throw new RuntimeException(result.cause()); | ||
| } | ||
|
|
||
| LOGGER.info("Vert.x HttpServer stopped"); | ||
| } finally { | ||
| latch.countDown(); | ||
| } | ||
| }); | ||
|
|
||
| try { | ||
| latch.await(); | ||
| } catch (InterruptedException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| }, | ||
| executor | ||
| ).toCompletableFuture().join(); | ||
| } | ||
| } finally { | ||
| this.server = null; | ||
| } | ||
|
|
||
| if (vertx != null) { | ||
| Future<?> future = executor.submit( | ||
| () -> { | ||
| CountDownLatch latch = new CountDownLatch(1); | ||
|
|
||
| vertx.close(result -> { | ||
| try { | ||
| if (result.failed()) { | ||
| LOGGER.warn("Failed to close Vert.x reason: {}", | ||
| result.cause().getMessage() | ||
| ); | ||
|
|
||
| throw new RuntimeException(result.cause()); | ||
| } | ||
|
|
||
| LOGGER.info("Vert.x stopped"); | ||
| } finally { | ||
| latch.countDown(); | ||
| } | ||
| }); | ||
|
|
||
| try { | ||
| latch.await(); | ||
| } catch (InterruptedException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
| ); | ||
|
|
||
| try { | ||
| future.get(); | ||
| } finally { | ||
| vertx = null; | ||
| } | ||
| } | ||
|
|
||
| if (executor != null) { | ||
| context.getExecutorServiceManager().shutdown(executor); | ||
| executor = null; | ||
| } | ||
| } | ||
| } |
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