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WebServer.java
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WebServer.java
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/*
* Copyright The Cryostat Authors
*
* The Universal Permissive License (UPL), Version 1.0
*
* Subject to the condition set forth below, permission is hereby granted to any
* person obtaining a copy of this software, associated documentation and/or data
* (collectively the "Software"), free of charge and under any and all copyright
* rights in the Software, and any and all patent rights owned or freely
* licensable by each licensor hereunder covering either (i) the unmodified
* Software as contributed to or provided by such licensor, or (ii) the Larger
* Works (as defined below), to deal in both
*
* (a) the Software, and
* (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
* one is included with the Software (each a "Larger Work" to which the Software
* is contributed by such licensors),
*
* without restriction, including without limitation the rights to copy, create
* derivative works of, display, perform, and distribute the Software and make,
* use, sell, offer for sale, import, export, have made, and have sold the
* Software and the Larger Work(s), and to sublicense the foregoing rights on
* either these or other terms.
*
* This license is subject to the following condition:
* The above copyright notice and either this complete permission notice or at
* a minimum a reference to the UPL must be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package io.cryostat.agent;
import io.vertx.core.AbstractVerticle;
import io.vertx.core.Promise;
import io.vertx.core.http.HttpMethod;
import io.vertx.core.http.HttpServer;
import io.vertx.core.http.HttpServerOptions;
import io.vertx.ext.web.Router;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
class WebServer extends AbstractVerticle {
private static final String DEFAULT_HTTP_HOST = "0.0.0.0";
private static final int DEFAULT_HTTP_PORT = 9977;
private final Logger log = LoggerFactory.getLogger(getClass());
private HttpServer http;
@Override
public void start(Promise<Void> promise) {
String host = System.getenv("CRYOSTAT_AGENT_HTTP_HOST");
if (StringUtils.isBlank(host)) {
host = DEFAULT_HTTP_HOST;
}
final String fHost = host;
String port = System.getenv("CRYOSTAT_AGENT_HTTP_PORT");
if (StringUtils.isBlank(port)) {
port = String.valueOf(DEFAULT_HTTP_PORT);
}
this.http =
getVertx()
.createHttpServer(
new HttpServerOptions()
.setHost(host)
.setPort(Integer.valueOf(port)));
Router router = Router.router(getVertx());
router.route()
.path("/")
.method(HttpMethod.POST)
.method(HttpMethod.GET)
.handler(rc -> rc.end());
this.http
.requestHandler(router)
.listen(
ar -> {
if (ar.failed()) {
promise.fail(ar.cause());
return;
}
promise.complete();
log.info(
"HTTP Server started on {}:{}",
fHost,
ar.result().actualPort());
});
}
@Override
public void stop(Promise<Void> promise) {
log.info("HTTP Server stopping");
if (this.http != null) {
this.http.close(
ar -> {
promise.complete();
log.info("HTTP Server stopped");
});
} else {
log.info("HTTP Server not started?");
}
}
}