NiagaCanvas/xml-plan-generic.xml at master · Sebisnow/NiagaCanvas · GitHub

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<plan>
   <schema name="cardata">
      <int name="type" />
      <int name="time" progressing="true" />
      <int name="vid" />
      <double name="spd" />
      <int name="xway" />
      <int name="lane" />
      <int name="dir" />
      <int name="seg" />
      <int name="pos" />
      <int name="qid" />
      <int name="s_init" />
      <int name="s_end" />
      <int name="dow" />
      <int name="tod" />
      <int name="day" />
   </schema>

   <c>I like comments!</c>
   <stream name="first-part">
      <c>Operator for reading in.</c>
      <operator name="cardata-scan" class="niagarino.operator.Scan">
         <schema name="cardata" />
         <c>Some input file.</c>
         <file>plan/cardatapoints.out.sorted</file>
      </operator>

      <operator name="select-type-0" class="niagarino.operator.Selection">
         <object name="predicate" class="niagarino.plan.TestPredicate1" />
      </operator>

      <operator name="multiplex-type-0" class="niagarino.operator.Multiplex" />
   </stream>

   <stream name="lav-calculation" previous="first-part">
      <operator name="window-avgsv" class="niagarino.operator.ValueWindow">
         <size>60</size>
         <slide>60</slide>
      </operator>

      <operator name="avgsv" class="niagarino.operator.OrderedAggregate">
         <group>
            <attribute name="vid" />
            <attribute name="xway" />
            <attribute name="seg" />
            <attribute name="dir" />
         </group>
         <functions>
            <avg attribute="spd" />
         </functions>
      </operator>

      <operator name="avgsv-segid" class="niagarino.operator.Derive">
         <object name="functions" class="niagarino.plan.TestDerivationFunction1" />
      </operator>

      <operator name="avgs" class="niagarino.operator.OrderedAggregate">
         <group>
            <attribute name="xway" />
            <attribute name="dir" />
            <attribute name="seg" />
            <attribute name="segid" />
         </group>
         <functions>
            <avg attribute="AVG(spd)" />
            <count attribute="vid" />
         </functions>
      </operator>

      <operator name="window-lav" class="niagarino.operator.ValueWindow">
         <size>300</size>
         <slide>60</slide>
      </operator>

      <operator name="lav" class="niagarino.operator.OrderedAggregate">
         <group>
            <attribute name="xway" />
            <attribute name="dir" />
            <attribute name="seg" />
            <attribute name="segid" />
         </group>
         <functions>
            <avg attribute="AVG(AVG(spd))" />
            <avg attribute="COUNT(vid)" />
         </functions>
      </operator>

      <operator name="lav-print" class="niagarino.operator.Print">
         <type>devnull</type>
      </operator>
   </stream>

   <stream name="accident-detection" previous="first-part">
      <operator name="window-cars" class="niagarino.operator.ValueWindow">
         <size>120</size>
         <slide>60</slide>
      </operator>

      <operator name="aggregate-cars" class="niagarino.operator.OrderedAggregate">
         <group>
            <attribute name="vid" />
         </group>
         <functions>
            <min attribute="pos" />
            <max attribute="pos" />
            <avg attribute="pos" />
            <count attribute="pos" />
         </functions>
      </operator>

      <operator name="accident-detection-print" class="niagarino.operator.Print">
         <type>devnull</type>
      </operator>
   </stream>
</plan>