diff --git a/grpclb/src/main/java/io/grpc/grpclb/GrpclbLoadBalancerFactory2.java b/grpclb/src/main/java/io/grpc/grpclb/GrpclbLoadBalancerFactory2.java new file mode 100644 index 0000000000..3471265740 --- /dev/null +++ b/grpclb/src/main/java/io/grpc/grpclb/GrpclbLoadBalancerFactory2.java @@ -0,0 +1,67 @@ +/* + * Copyright 2017, Google Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +package io.grpc.grpclb; + +import io.grpc.ExperimentalApi; +import io.grpc.LoadBalancer2; +import io.grpc.PickFirstBalancerFactory2; +import io.grpc.util.RoundRobinLoadBalancerFactory2; + +/** + * A factory for {@link LoadBalancer2}s that uses the GRPCLB protocol. + * + *

TECHNICAL PREVIEW: The name of this class is temporary. It will be renamed to + * {@code GrpclbLoadBalancerFactory} during + * transition to LBv2. You should use it only if you want to experiment the LBv2 code path. + * + *

Experimental:This only works with the GRPCLB load-balancer service, which is not + * available yet. Right now it's only good for internal testing. + */ +@ExperimentalApi("https://github.com/grpc/grpc-java/issues/1782") +public class GrpclbLoadBalancerFactory2 extends LoadBalancer2.Factory { + + private static final GrpclbLoadBalancerFactory2 instance = new GrpclbLoadBalancerFactory2(); + + private GrpclbLoadBalancerFactory2() { + } + + public static GrpclbLoadBalancerFactory2 getInstance() { + return instance; + } + + @Override + public LoadBalancer2 newLoadBalancer(LoadBalancer2.Helper helper) { + return new GrpclbLoadBalancer2( + helper, PickFirstBalancerFactory2.getInstance(), + RoundRobinLoadBalancerFactory2.getInstance()); + } +}