From 660828e48ac0657e9673c1d7647131ffa9d9c963 Mon Sep 17 00:00:00 2001 From: Abyss777 Date: Thu, 18 May 2017 13:57:29 +0500 Subject: Unwrap position fields and attributes to computedAttribute context. --- .../processing/ComputedAttributesHandler.java | 31 ++++++++++++++++-- .../traccar/processing/ComputedAttributesTest.java | 37 +++++++++++++++++++--- 2 files changed, 60 insertions(+), 8 deletions(-) diff --git a/src/org/traccar/processing/ComputedAttributesHandler.java b/src/org/traccar/processing/ComputedAttributesHandler.java index ea7c0aa1d..b158431ef 100644 --- a/src/org/traccar/processing/ComputedAttributesHandler.java +++ b/src/org/traccar/processing/ComputedAttributesHandler.java @@ -16,7 +16,10 @@ */ package org.traccar.processing; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; import java.util.Collection; +import java.util.Map; import org.apache.commons.jexl2.JexlEngine; import org.apache.commons.jexl2.JexlException; @@ -36,10 +39,32 @@ public class ComputedAttributesHandler extends BaseDataHandler { engine.setStrict(true); } + private MapContext prepareContext(Position position) { + MapContext result = new MapContext(); + Method[] methods = position.getClass().getMethods(); + for (Method method : methods) { + if (method.getName().startsWith("get") && method.getParameterTypes().length == 0 + && !method.getName().equals("getClass")) { + String name = method.getName().substring(3, 4).toLowerCase() + method.getName().substring(4); + + try { + if (!method.getReturnType().equals(Map.class)) { + result.set(name, method.invoke(position)); + } else { + for (Object key : ((Map) method.invoke(position)).keySet()) { + result.set((String) key, ((Map) method.invoke(position)).get(key)); + } + } + } catch (IllegalAccessException | InvocationTargetException error) { + Log.warning(error); + } + } + } + return result; + } + public Object computeAttribute(Attribute attribute, Position position) throws JexlException { - MapContext expressionContext = new MapContext(); - expressionContext.set("position", position); - return engine.createExpression(attribute.getExpression()).evaluate(expressionContext); + return engine.createExpression(attribute.getExpression()).evaluate(prepareContext(position)); } @Override diff --git a/test/org/traccar/processing/ComputedAttributesTest.java b/test/org/traccar/processing/ComputedAttributesTest.java index 432f1b9ad..ac4331c6d 100644 --- a/test/org/traccar/processing/ComputedAttributesTest.java +++ b/test/org/traccar/processing/ComputedAttributesTest.java @@ -1,5 +1,7 @@ package org.traccar.processing; +import java.util.Date; + import org.junit.Assert; import org.junit.Test; import org.traccar.model.Attribute; @@ -11,27 +13,52 @@ public class ComputedAttributesTest { public void testComputedAttributes() { Position position = new Position(); ComputedAttributesHandler computedAttributesHandler = new ComputedAttributesHandler(); + Date date = new Date(); + position.setTime(date); + position.setSpeed(42); + position.setValid(false); position.set("adc1", 128); position.set("booleanFlag", true); position.set("adc2", 100); position.set("bitFlag", 7); position.set("event", 42); + position.set("result", "success"); Attribute attribute = new Attribute(); - attribute.setExpression("position.getInteger(\"adc1\")"); + attribute.setExpression("adc1"); Assert.assertEquals(128, computedAttributesHandler.computeAttribute(attribute, position)); - attribute.setExpression("!position.getBoolean(\"booleanFlag\")"); + attribute.setExpression("!booleanFlag"); Assert.assertEquals(false, computedAttributesHandler.computeAttribute(attribute, position)); - attribute.setExpression("position.getInteger(\"adc2\") * 2 + 50"); + attribute.setExpression("adc2 * 2 + 50"); Assert.assertEquals(250, computedAttributesHandler.computeAttribute(attribute, position)); - attribute.setExpression("(position.getLong(\"bitFlag\") & 4) != 0"); + attribute.setExpression("(bitFlag & 4) != 0"); Assert.assertEquals(true, computedAttributesHandler.computeAttribute(attribute, position)); - attribute.setExpression("if (position.getLong(\"event\") == 42) \"lowBattery\""); + attribute.setExpression("if (event == 42) \"lowBattery\""); Assert.assertEquals("lowBattery", computedAttributesHandler.computeAttribute(attribute, position)); + + attribute.setExpression("speed > 5 && valid"); + Assert.assertEquals(false, computedAttributesHandler.computeAttribute(attribute, position)); + + attribute.setExpression("fixTime"); + Assert.assertEquals(date, computedAttributesHandler.computeAttribute(attribute, position)); + + // modification tests + attribute.setExpression("adc1 = 256"); + computedAttributesHandler.computeAttribute(attribute, position); + Assert.assertEquals(128, position.getInteger("adc1")); + + attribute.setExpression("result = \"fail\""); + computedAttributesHandler.computeAttribute(attribute, position); + Assert.assertEquals("success", position.getString("result")); + + attribute.setExpression("fixTime = \"2017-10-18 10:00:01\""); + computedAttributesHandler.computeAttribute(attribute, position); + Assert.assertEquals(date, position.getFixTime()); + } } -- cgit v1.2.3