org.openqa.selenium.events.zeromq.ZeroMqEventBus Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of selenium-grid Show documentation
Show all versions of selenium-grid Show documentation
Selenium automates browsers. That's it! What you do with that power is entirely up to you.
// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The SFC 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.openqa.selenium.events.zeromq;
import static org.openqa.selenium.events.zeromq.UnboundZmqEventBus.REJECTED_EVENT;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.function.Consumer;
import org.openqa.selenium.events.EventBus;
import org.openqa.selenium.events.EventListener;
import org.openqa.selenium.events.EventName;
import org.openqa.selenium.grid.config.Config;
import org.openqa.selenium.grid.config.ConfigException;
import org.openqa.selenium.grid.security.Secret;
import org.openqa.selenium.grid.security.SecretOptions;
import org.openqa.selenium.internal.Require;
import org.openqa.selenium.json.JsonInput;
import org.openqa.selenium.net.Urls;
import org.zeromq.ZContext;
/** An {@link EventBus} backed by ZeroMQ. */
public class ZeroMqEventBus {
private static final String EVENTS_SECTION = "events";
private ZeroMqEventBus() {
// Use the create method.
}
public static EventBus create(
ZContext context, String publish, String subscribe, boolean bind, Secret secret) {
if (bind) {
return new BoundZmqEventBus(context, publish, subscribe, secret);
}
return new UnboundZmqEventBus(context, publish, subscribe, secret);
}
public static EventBus create(Config config) {
String publish =
config
.get(EVENTS_SECTION, "publish")
.orElseGet(
() -> {
URI uri =
config
.get("node", "hub")
.map(Urls::from)
.orElseThrow(
() ->
new IllegalArgumentException(
"Unable to find address to publish events to."));
return mungeUri(uri, "tcp", 4442);
});
String subscribe =
config
.get(EVENTS_SECTION, "subscribe")
.orElseGet(
() -> {
URI uri =
config
.get("node", "hub")
.map(Urls::from)
.orElseThrow(
() ->
new IllegalArgumentException(
"Unable to find address to subscribe for events from."));
return mungeUri(uri, "tcp", 4443);
});
boolean bind = config.getBool(EVENTS_SECTION, "bind").orElse(false);
SecretOptions secretOptions = new SecretOptions(config);
return create(new ZContext(), publish, subscribe, bind, secretOptions.getRegistrationSecret());
}
private static String mungeUri(URI base, String scheme, int port) {
try {
return new URI(scheme, null, base.getHost(), port, null, null, null).toString();
} catch (URISyntaxException e) {
throw new ConfigException("Unable to create URI from " + base);
}
}
public static EventListener onRejectedEvent(Consumer handler) {
Require.nonNull("Handler", handler);
return new EventListener<>(REJECTED_EVENT, RejectedEvent.class, handler);
}
public static class RejectedEvent {
private final EventName name;
private final Object data;
RejectedEvent(EventName name, Object data) {
this.name = name;
this.data = data;
}
private static RejectedEvent fromJson(JsonInput input) {
EventName name = null;
Object data = null;
input.beginObject();
while (input.hasNext()) {
switch (input.nextName()) {
case "data":
data = input.read(Object.class);
break;
case "name":
name = input.read(EventName.class);
break;
default:
input.skipValue();
break;
}
}
input.endObject();
return new RejectedEvent(name, data);
}
public EventName getName() {
return name;
}
public Object getData() {
return data;
}
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy