From 59416923dcb3a756eaf532cc4259f2f6625c0762 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Sun, 31 Mar 2019 22:35:39 -0700 Subject: Convert project to gradle --- .../handler/events/FuelDropEventHandler.java | 70 ++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 src/main/java/org/traccar/handler/events/FuelDropEventHandler.java (limited to 'src/main/java/org/traccar/handler/events/FuelDropEventHandler.java') diff --git a/src/main/java/org/traccar/handler/events/FuelDropEventHandler.java b/src/main/java/org/traccar/handler/events/FuelDropEventHandler.java new file mode 100644 index 000000000..59de61bba --- /dev/null +++ b/src/main/java/org/traccar/handler/events/FuelDropEventHandler.java @@ -0,0 +1,70 @@ +/* + * Copyright 2017 - 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 io.netty.channel.ChannelHandler; +import org.traccar.database.IdentityManager; +import org.traccar.model.Device; +import org.traccar.model.Event; +import org.traccar.model.Position; + +import java.util.Collections; +import java.util.Map; + +@ChannelHandler.Sharable +public class FuelDropEventHandler extends BaseEventHandler { + + public static final String ATTRIBUTE_FUEL_DROP_THRESHOLD = "fuelDropThreshold"; + + private final IdentityManager identityManager; + + public FuelDropEventHandler(IdentityManager identityManager) { + this.identityManager = identityManager; + } + + @Override + protected Map analyzePosition(Position position) { + + Device device = identityManager.getById(position.getDeviceId()); + if (device == null) { + return null; + } + if (!identityManager.isLatestPosition(position)) { + return null; + } + + double fuelDropThreshold = identityManager + .lookupAttributeDouble(device.getId(), ATTRIBUTE_FUEL_DROP_THRESHOLD, 0, false); + + if (fuelDropThreshold > 0) { + Position lastPosition = identityManager.getLastPosition(position.getDeviceId()); + if (position.getAttributes().containsKey(Position.KEY_FUEL_LEVEL) + && lastPosition != null && lastPosition.getAttributes().containsKey(Position.KEY_FUEL_LEVEL)) { + + double drop = lastPosition.getDouble(Position.KEY_FUEL_LEVEL) + - position.getDouble(Position.KEY_FUEL_LEVEL); + if (drop >= fuelDropThreshold) { + Event event = new Event(Event.TYPE_DEVICE_FUEL_DROP, position.getDeviceId(), position.getId()); + event.set(ATTRIBUTE_FUEL_DROP_THRESHOLD, fuelDropThreshold); + return Collections.singletonMap(event, position); + } + } + } + + return null; + } + +} -- cgit v1.2.3