Java tutorial
/* * Licensed 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 io.prestosql.server; import com.google.common.collect.Maps; import io.prestosql.failureDetector.HeartbeatFailureDetector; import javax.inject.Inject; import javax.ws.rs.GET; import javax.ws.rs.Path; import java.util.Collection; import static com.google.common.base.Predicates.in; @Path("/v1/node") public class NodeResource { private final HeartbeatFailureDetector failureDetector; @Inject public NodeResource(HeartbeatFailureDetector failureDetector) { this.failureDetector = failureDetector; } @GET public Collection<HeartbeatFailureDetector.Stats> getNodeStats() { return failureDetector.getStats().values(); } @GET @Path("failed") public Collection<HeartbeatFailureDetector.Stats> getFailed() { return Maps.filterKeys(failureDetector.getStats(), in(failureDetector.getFailed())).values(); } }