diff options
Diffstat (limited to 'src/main/java/org/traccar/schedule')
| -rw-r--r-- | src/main/java/org/traccar/schedule/ScheduleManager.java | 3 | ||||
| -rw-r--r-- | src/main/java/org/traccar/schedule/TaskHealthCheck.java | 87 |
2 files changed, 88 insertions, 2 deletions
diff --git a/src/main/java/org/traccar/schedule/ScheduleManager.java b/src/main/java/org/traccar/schedule/ScheduleManager.java index a1679717f..7a3d33b85 100644 --- a/src/main/java/org/traccar/schedule/ScheduleManager.java +++ b/src/main/java/org/traccar/schedule/ScheduleManager.java @@ -16,7 +16,6 @@ package org.traccar.schedule; import org.traccar.LifecycleObject; -import org.traccar.api.HealthCheckService; import java.util.concurrent.Executors; import java.util.concurrent.ScheduledExecutorService; @@ -31,7 +30,7 @@ public class ScheduleManager implements LifecycleObject { new TaskDeviceInactivityCheck().schedule(executor); new TaskWebSocketKeepalive().schedule(executor); - new HealthCheckService().schedule(executor); + new TaskHealthCheck().schedule(executor); } @Override diff --git a/src/main/java/org/traccar/schedule/TaskHealthCheck.java b/src/main/java/org/traccar/schedule/TaskHealthCheck.java new file mode 100644 index 000000000..087cd3e63 --- /dev/null +++ b/src/main/java/org/traccar/schedule/TaskHealthCheck.java @@ -0,0 +1,87 @@ +/* + * Copyright 2020 - 2022 Anton Tananaev (anton@traccar.org) + * + * 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 org.traccar.schedule; + +import com.sun.jna.Library; +import com.sun.jna.Native; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.traccar.Context; +import org.traccar.config.Keys; + +import java.util.concurrent.ScheduledExecutorService; +import java.util.concurrent.TimeUnit; + +public class TaskHealthCheck implements Runnable { + + private static final Logger LOGGER = LoggerFactory.getLogger(TaskHealthCheck.class); + + private SystemD systemD; + + private boolean enabled; + private long period; + + public TaskHealthCheck() { + if (!Context.getConfig().getBoolean(Keys.WEB_DISABLE_HEALTH_CHECK) + && System.getProperty("os.name").toLowerCase().startsWith("linux")) { + try { + systemD = Native.load("systemd", SystemD.class); + String watchdogTimer = System.getenv("WATCHDOG_USEC"); + if (watchdogTimer != null && !watchdogTimer.isEmpty()) { + period = Long.parseLong(watchdogTimer) / 1000 * 4 / 5; + } + if (period > 0) { + LOGGER.info("Health check enabled with period {}", period); + enabled = true; + } + } catch (UnsatisfiedLinkError e) { + LOGGER.warn("No systemd support", e); + } + } + } + + private String getUrl() { + String address = Context.getConfig().getString(Keys.WEB_ADDRESS, "localhost"); + int port = Context.getConfig().getInteger(Keys.WEB_PORT); + return "http://" + address + ":" + port + "/api/server"; + } + + public void schedule(ScheduledExecutorService executor) { + if (enabled) { + executor.scheduleAtFixedRate(this, period, period, TimeUnit.MILLISECONDS); + } + } + + @Override + public void run() { + LOGGER.debug("Health check running"); + int status = Context.getClient().target(getUrl()).request().get().getStatus(); + if (status == 200) { + int result = systemD.sd_notify(0, "WATCHDOG=1"); + if (result < 0) { + LOGGER.warn("Health check notify error {}", result); + } + } else { + LOGGER.warn("Health check failed with status {}", status); + } + } + + interface SystemD extends Library { + @SuppressWarnings("checkstyle:MethodName") + int sd_notify(@SuppressWarnings("checkstyle:ParameterName") int unset_environment, String state); + } + +} |