/
NewSessionQueue.java
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/
NewSessionQueue.java
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// 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.grid.sessionqueue;
import org.openqa.selenium.Capabilities;
import org.openqa.selenium.SessionNotCreatedException;
import org.openqa.selenium.grid.data.CreateSessionResponse;
import org.openqa.selenium.grid.data.RequestId;
import org.openqa.selenium.grid.security.RequiresSecretFilter;
import org.openqa.selenium.grid.security.Secret;
import org.openqa.selenium.internal.Either;
import org.openqa.selenium.internal.Require;
import org.openqa.selenium.remote.NewSessionPayload;
import org.openqa.selenium.remote.http.Contents;
import org.openqa.selenium.remote.http.HttpRequest;
import org.openqa.selenium.remote.http.HttpResponse;
import org.openqa.selenium.remote.http.Routable;
import org.openqa.selenium.remote.http.Route;
import org.openqa.selenium.remote.tracing.Tracer;
import org.openqa.selenium.status.HasReadyState;
import java.io.IOException;
import java.io.Reader;
import java.io.UncheckedIOException;
import java.time.Instant;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.UUID;
import java.util.stream.Collectors;
import static org.openqa.selenium.remote.http.Route.combine;
import static org.openqa.selenium.remote.http.Route.delete;
import static org.openqa.selenium.remote.http.Route.get;
import static org.openqa.selenium.remote.http.Route.post;
public abstract class NewSessionQueue implements HasReadyState, Routable {
protected final Tracer tracer;
private final Route routes;
protected NewSessionQueue(Tracer tracer, Secret registrationSecret) {
this.tracer = Require.nonNull("Tracer", tracer);
Require.nonNull("Registration secret", registrationSecret);
RequiresSecretFilter requiresSecret = new RequiresSecretFilter(registrationSecret);
routes = combine(
post("/session")
.to(() -> req -> {
try (Reader reader = Contents.reader(req);
NewSessionPayload payload = NewSessionPayload.create(reader)) {
SessionRequest sessionRequest = new SessionRequest(
new RequestId(UUID.randomUUID()),
Instant.now(),
payload.getDownstreamDialects(),
payload.stream().collect(Collectors.toSet()));
return addToQueue(sessionRequest);
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}),
post("/se/grid/newsessionqueue/session")
.to(() -> new AddToSessionQueue(tracer, this)),
post("/se/grid/newsessionqueue/session/{requestId}/retry")
.to(params -> new AddBackToSessionQueue(tracer, this, requestIdFrom(params)))
.with(requiresSecret),
post("/se/grid/newsessionqueue/session/{requestId}/fail")
.to(params -> new SessionNotCreated(tracer, this, requestIdFrom(params))),
post("/se/grid/newsessionqueue/session/{requestId}/success")
.to(params -> new SessionCreated(tracer, this, requestIdFrom(params))),
get("/se/grid/newsessionqueue/session/{requestId}")
.to(params -> new RemoveFromSessionQueue(tracer, this, requestIdFrom(params)))
.with(requiresSecret),
get("/se/grid/newsessionqueue/queue")
.to(() -> new GetSessionQueue(tracer, this)),
delete("/se/grid/newsessionqueue/queue")
.to(() -> new ClearSessionQueue(tracer, this))
.with(requiresSecret));
}
private RequestId requestIdFrom(Map<String, String> params) {
return new RequestId(UUID.fromString(params.get("requestId")));
}
public abstract HttpResponse addToQueue(SessionRequest request);
public abstract boolean retryAddToQueue(SessionRequest request);
public abstract Optional<SessionRequest> remove(RequestId reqId);
public abstract void complete(RequestId reqId, Either<SessionNotCreatedException, CreateSessionResponse> result);
public abstract int clearQueue();
public abstract List<Set<Capabilities>> getQueueContents();
@Override
public boolean matches(HttpRequest req) {
return routes.matches(req);
}
@Override
public HttpResponse execute(HttpRequest req) {
return routes.execute(req);
}
}