diff options
Diffstat (limited to 'src/org/traccar/handler/events/AlertEventHandler.java')
-rw-r--r-- | src/org/traccar/handler/events/AlertEventHandler.java | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/org/traccar/handler/events/AlertEventHandler.java b/src/org/traccar/handler/events/AlertEventHandler.java new file mode 100644 index 000000000..0b7c8d23e --- /dev/null +++ b/src/org/traccar/handler/events/AlertEventHandler.java @@ -0,0 +1,59 @@ +/* + * Copyright 2016 - 2019 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.handler.events; + +import java.util.Collections; +import java.util.Map; + +import io.netty.channel.ChannelHandler; +import org.traccar.config.Config; +import org.traccar.config.Keys; +import org.traccar.database.IdentityManager; +import org.traccar.model.Event; +import org.traccar.model.Position; + +@ChannelHandler.Sharable +public class AlertEventHandler extends BaseEventHandler { + + private final IdentityManager identityManager; + private final boolean ignoreDuplicateAlerts; + + public AlertEventHandler(Config config, IdentityManager identityManager) { + this.identityManager = identityManager; + ignoreDuplicateAlerts = config.getBoolean(Keys.EVENT_IGNORE_DUPLICATE_ALERTS); + } + + @Override + protected Map<Event, Position> analyzePosition(Position position) { + Object alarm = position.getAttributes().get(Position.KEY_ALARM); + if (alarm != null) { + boolean ignoreAlert = false; + if (ignoreDuplicateAlerts) { + Position lastPosition = identityManager.getLastPosition(position.getDeviceId()); + if (lastPosition != null && alarm.equals(lastPosition.getAttributes().get(Position.KEY_ALARM))) { + ignoreAlert = true; + } + } + if (!ignoreAlert) { + Event event = new Event(Event.TYPE_ALARM, position.getDeviceId(), position.getId()); + event.set(Position.KEY_ALARM, (String) alarm); + return Collections.singletonMap(event, position); + } + } + return null; + } + +} |