| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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.apache.skywalking.apm.agent.core.jvm; |
| |
| import io.grpc.Channel; |
| import java.util.LinkedList; |
| import java.util.concurrent.LinkedBlockingQueue; |
| import java.util.concurrent.TimeUnit; |
| import org.apache.skywalking.apm.agent.core.boot.BootService; |
| import org.apache.skywalking.apm.agent.core.boot.DefaultImplementor; |
| import org.apache.skywalking.apm.agent.core.boot.ServiceManager; |
| import org.apache.skywalking.apm.agent.core.commands.CommandService; |
| import org.apache.skywalking.apm.agent.core.conf.Config; |
| import org.apache.skywalking.apm.agent.core.logging.api.ILog; |
| import org.apache.skywalking.apm.agent.core.logging.api.LogManager; |
| import org.apache.skywalking.apm.agent.core.remote.GRPCChannelListener; |
| import org.apache.skywalking.apm.agent.core.remote.GRPCChannelManager; |
| import org.apache.skywalking.apm.agent.core.remote.GRPCChannelStatus; |
| import org.apache.skywalking.apm.network.common.v3.Commands; |
| import org.apache.skywalking.apm.network.language.agent.v3.JVMMetric; |
| import org.apache.skywalking.apm.network.language.agent.v3.JVMMetricCollection; |
| import org.apache.skywalking.apm.network.language.agent.v3.JVMMetricReportServiceGrpc; |
| |
| import static org.apache.skywalking.apm.agent.core.conf.Config.Collector.GRPC_UPSTREAM_TIMEOUT; |
| |
| @DefaultImplementor |
| public class JVMMetricsSender implements BootService, Runnable, GRPCChannelListener { |
| private static final ILog LOGGER = LogManager.getLogger(JVMMetricsSender.class); |
| |
| private volatile GRPCChannelStatus status = GRPCChannelStatus.DISCONNECT; |
| private volatile JVMMetricReportServiceGrpc.JVMMetricReportServiceBlockingStub stub = null; |
| |
| private LinkedBlockingQueue<JVMMetric> queue; |
| |
| @Override |
| public void prepare() { |
| queue = new LinkedBlockingQueue<>(Config.Jvm.BUFFER_SIZE); |
| ServiceManager.INSTANCE.findService(GRPCChannelManager.class).addChannelListener(this); |
| } |
| |
| @Override |
| public void boot() { |
| |
| } |
| |
| public void offer(JVMMetric metric) { |
| // drop last message and re-deliver |
| if (!queue.offer(metric)) { |
| queue.poll(); |
| queue.offer(metric); |
| } |
| } |
| |
| @Override |
| public void run() { |
| if (status == GRPCChannelStatus.CONNECTED) { |
| try { |
| JVMMetricCollection.Builder builder = JVMMetricCollection.newBuilder(); |
| LinkedList<JVMMetric> buffer = new LinkedList<>(); |
| queue.drainTo(buffer); |
| if (buffer.size() > 0) { |
| builder.addAllMetrics(buffer); |
| builder.setService(Config.Agent.SERVICE_NAME); |
| builder.setServiceInstance(Config.Agent.INSTANCE_NAME); |
| Commands commands = stub.withDeadlineAfter(GRPC_UPSTREAM_TIMEOUT, TimeUnit.SECONDS) |
| .collect(builder.build()); |
| ServiceManager.INSTANCE.findService(CommandService.class).receiveCommand(commands); |
| } |
| } catch (Throwable t) { |
| LOGGER.error(t, "send JVM metrics to Collector fail."); |
| ServiceManager.INSTANCE.findService(GRPCChannelManager.class).reportError(t); |
| } |
| } |
| } |
| |
| @Override |
| public void statusChanged(GRPCChannelStatus status) { |
| if (GRPCChannelStatus.CONNECTED.equals(status)) { |
| Channel channel = ServiceManager.INSTANCE.findService(GRPCChannelManager.class).getChannel(); |
| stub = JVMMetricReportServiceGrpc.newBlockingStub(channel); |
| } |
| this.status = status; |
| } |
| |
| @Override |
| public void onComplete() { |
| |
| } |
| |
| @Override |
| public void shutdown() { |
| |
| } |
| } |