Issue #5018 - add request timeout onto ClientUpgradeRequest

Signed-off-by: Lachlan Roberts <lachlan@webtide.com>

jetty-websocket/websocket-client/src/main/java/org/eclipse/jetty/websocket/client/ClientUpgradeRequest.java

@@ -30,6 +30,7 @@ import java.util.Map;
 import java.util.Set;
 import java.util.TreeSet;
 import java.util.concurrent.ThreadLocalRandom;
+import java.util.concurrent.TimeUnit;
 
 import org.eclipse.jetty.client.HttpClient;
 import org.eclipse.jetty.http.HttpField;
@@ -68,6 +69,7 @@ public class ClientUpgradeRequest extends UpgradeRequestAdapter
 
     private final String key;
     private Object localEndpoint;
+    private long timeout;
 
     public ClientUpgradeRequest()
     {
@@ -179,6 +181,27 @@ public class ClientUpgradeRequest extends UpgradeRequestAdapter
         }
     }
 
+    /**
+     * @param timeout the total timeout for the request/response conversation of the WebSocket handshake;
+     * use zero or a negative value to disable the timeout
+     * @param unit the timeout unit
+     * @return this request object
+     */
+    public ClientUpgradeRequest timeout(long timeout, TimeUnit unit)
+    {
+        this.timeout = unit.toMillis(timeout);
+        return this;
+    }
+
+    /**
+     * @return the total timeout for this request, in milliseconds;
+     * zero or negative if the timeout is disabled
+     */
+    public long getTimeout()
+    {
+        return timeout;
+    }
+
     public void setLocalEndpoint(Object websocket)
     {
         this.localEndpoint = websocket;

jetty-websocket/websocket-client/src/main/java/org/eclipse/jetty/websocket/client/WebSocketClient.java

@@ -30,6 +30,7 @@ import java.util.Objects;
 import java.util.Set;
 import java.util.concurrent.Executor;
 import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
 import java.util.function.Supplier;
 
 import org.eclipse.jetty.client.HttpClient;
@@ -374,7 +375,7 @@ public class WebSocketClient extends ContainerLifeCycle implements WebSocketCont
         init();
 
         WebSocketUpgradeRequest wsReq = new WebSocketUpgradeRequest(this, httpClient, request);
-
+        wsReq.timeout(request.getTimeout() , TimeUnit.MILLISECONDS);
         wsReq.setUpgradeListener(upgradeListener);
         return wsReq.sendAsync();
     }