| /* |
| * 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.brooklyn.entity.monitoring.monit; |
| |
| import java.util.Map; |
| |
| import org.apache.brooklyn.api.entity.Entity; |
| import org.apache.brooklyn.api.location.Location; |
| import org.apache.brooklyn.entity.software.base.SoftwareProcessImpl; |
| import org.apache.brooklyn.feed.ssh.SshFeed; |
| import org.apache.brooklyn.feed.ssh.SshPollConfig; |
| import org.apache.brooklyn.feed.ssh.SshPollValue; |
| import org.apache.brooklyn.location.ssh.SshMachineLocation; |
| import org.apache.brooklyn.util.text.Strings; |
| import org.apache.brooklyn.util.time.Duration; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.base.Function; |
| import com.google.common.collect.Iterables; |
| |
| public class MonitNodeImpl extends SoftwareProcessImpl implements MonitNode { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(MonitNodeImpl.class); |
| |
| private SshFeed feed; |
| |
| public MonitNodeImpl() { |
| } |
| |
| public MonitNodeImpl(Map<?,?> flags) { |
| super(flags, null); |
| } |
| |
| public MonitNodeImpl(Map<?,?> flags, Entity parent) { |
| super(flags, parent); |
| } |
| |
| @Override |
| public Class<? extends MonitDriver> getDriverInterface() { |
| return MonitDriver.class; |
| } |
| |
| @Override |
| public MonitDriver getDriver() { |
| return (MonitDriver) super.getDriver(); |
| } |
| |
| @Override |
| protected void connectSensors() { |
| super.connectSensors(); |
| Location machine = Iterables.get(getLocations(), 0, null); |
| |
| if (machine instanceof SshMachineLocation) { |
| String cmd = getDriver().getStatusCmd(); |
| feed = SshFeed.builder() |
| .entity(this) |
| .period(Duration.FIVE_SECONDS) |
| .machine((SshMachineLocation) machine) |
| .poll(new SshPollConfig<Boolean>(SERVICE_UP) |
| .command(cmd) |
| .setOnSuccess(true) |
| .setOnFailureOrException(false)) |
| .poll(new SshPollConfig<String>(MONIT_TARGET_PROCESS_NAME) |
| .command(cmd) |
| .onSuccess(new Function<SshPollValue, String>() { |
| @Override |
| public String apply(SshPollValue input) { |
| String process = Strings.getFirstWordAfter(input.getStdout(), "Process"); |
| return process; |
| } |
| }) |
| .setOnFailureOrException(null)) |
| .poll(new SshPollConfig<String>(MONIT_TARGET_PROCESS_STATUS) |
| .command(cmd) |
| .onSuccess(new Function<SshPollValue, String>() { |
| @Override |
| public String apply(SshPollValue input) { |
| return Strings.trim(Strings.getRemainderOfLineAfter(input.getStdout(), "status")); |
| } |
| }) |
| .setOnFailureOrException(null)) |
| .build(); |
| } else { |
| LOG.warn("Location(s) {} not an ssh-machine location, so not polling for status; setting serviceUp immediately", getLocations()); |
| setAttribute(SERVICE_UP, true); |
| } |
| } |
| |
| @Override |
| protected void disconnectSensors() { |
| if (feed != null) feed.stop(); |
| } |
| |
| @Override |
| public String getShortName() { |
| return "Monit"; |
| } |
| } |