bundles/org.simantics.history/examples/org/simantics/history/examples/HistoryExample2.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management in\r
   3  * Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.history.examples;\r
  13 \r
  14 import java.io.File;\r
  15 \r
  16 import org.simantics.databoard.Bindings;\r
  17 import org.simantics.databoard.Datatypes;\r
  18 import org.simantics.databoard.accessor.StreamAccessor;\r
  19 import org.simantics.databoard.binding.Binding;\r
  20 import org.simantics.databoard.type.Datatype;\r
  21 import org.simantics.databoard.type.RecordType;\r
  22 import org.simantics.databoard.util.Bean;\r
  23 import org.simantics.history.Collector;\r
  24 import org.simantics.history.History;\r
  25 import org.simantics.history.HistoryManager;\r
  26 import org.simantics.history.ItemManager;\r
  27 import org.simantics.history.impl.CollectorImpl;\r
  28 import org.simantics.history.util.subscription.SubscriptionItem;\r
  29 import org.simantics.history.util.subscription.SamplingFormat;\r
  30 import org.simantics.utils.FileUtils;\r
  31 \r
  32 public class HistoryExample2 {\r
  33                 \r
  34         public static void main(String[] args) throws Exception {\r
  35                 \r
  36                 //// Create sampling formats            \r
  37                 // Simple format captures all samples, no min/max/avg/median \r
  38                 SamplingFormat simpleFormat, intervalFormat;\r
  39                 simpleFormat = new SamplingFormat();\r
  40                 RecordType format = (RecordType) (simpleFormat.format = new RecordType());\r
  41                 format.addComponent("time", Datatypes.DOUBLE);\r
  42                 format.addComponent("value", Datatypes.DOUBLE );\r
  43                 format.addComponent("quality", Datatypes.BYTE );\r
  44                 simpleFormat.interval = Double.NaN;\r
  45                 simpleFormat.deadband = Double.NaN;\r
  46                 simpleFormat.formatId = "Simple";\r
  47                 \r
  48                 // Interval format captures samples with 0.5s interval. It also calculates min/max/avg/median \r
  49                 intervalFormat = new SamplingFormat();\r
  50                 format = (RecordType) (intervalFormat.format = new RecordType());\r
  51                 format.addComponent("time", Datatypes.DOUBLE);\r
  52                 format.addComponent("endTime", Datatypes.DOUBLE);\r
  53                 format.addComponent("value", Datatypes.DOUBLE );\r
  54                 format.addComponent("lastValue", Datatypes.DOUBLE);             \r
  55                 format.addComponent("min", Datatypes.DOUBLE);\r
  56                 format.addComponent("max", Datatypes.DOUBLE);\r
  57                 format.addComponent("avg", Datatypes.DOUBLE);\r
  58                 format.addComponent("median", Datatypes.DOUBLE);\r
  59                 format.addComponent("quality", Datatypes.BYTE );\r
  60                 format.addComponent("count", Datatypes.INTEGER);\r
  61                 intervalFormat.interval = Double.NaN;\r
  62                 intervalFormat.deadband = Double.NaN;\r
  63                 intervalFormat.interval = 0.5;\r
  64                 intervalFormat.formatId = "Interval";\r
  65                 \r
  66                 //// Create item descriptions\r
  67                 SubscriptionItem[] items = SubscriptionItem.createItems("Variable", "MySubscription", simpleFormat, intervalFormat);\r
  68 \r
  69                 // Manage items\r
  70                 ItemManager im = new ItemManager( items );\r
  71                 im.search("groupId", "MySubscription");\r
  72                 \r
  73                 //// Open file history & initialize subscription \r
  74                 File workarea = FileUtils.createTmpDir();\r
  75                 HistoryManager historian = History.openFileHistory( workarea );\r
  76                 historian.create( items );\r
  77                                 \r
  78                 //// Record data\r
  79                 Collector collector = new CollectorImpl( historian );\r
  80                 collector.addItems( items );\r
  81                 try {\r
  82                         double NaN = Double.NaN;\r
  83                         double[] data = { 5.0, 5.0, 5.0, 5.0, 6.0, 6.0, 6.0, 7.0, 8.0, 9.0, NaN,10.0, NaN, NaN, NaN };\r
  84 \r
  85                         for (int i=0; i<data.length; i++) \r
  86                         {\r
  87                                 collector.beginStep(Bindings.DOUBLE, i * 0.1);\r
  88                                 collector.setValue("Variable", Bindings.DOUBLE, data[i]);\r
  89                                 collector.endStep();\r
  90                         }\r
  91                         \r
  92                 } finally {\r
  93                         collector.close();\r
  94                 }\r
  95                 \r
  96                 // Open accessor to the data, read & print data.\r
  97                 System.out.println("IntervalFormat = "+intervalFormat.toString());\r
  98                 StreamAccessor sa = historian.openStream( items[1].id, "r" );\r
  99                 try {                   \r
 100                         sa.reset();\r
 101                         Datatype sampleType = sa.type().componentType;\r
 102                         Binding beanBinding = Bindings.getBeanBinding( sampleType );\r
 103                         Bean sample = (Bean) beanBinding.createDefault();\r
 104                         for (int i=0; i<sa.size(); i++) {\r
 105                                 sa.get(i, beanBinding, sample);\r
 106                                 System.out.println( sample );\r
 107                         }\r
 108                 } finally {\r
 109                         sa.close();\r
 110                 }\r
 111                                 \r
 112                 // The data can also be read using generic binding\r
 113                 System.out.println("\nSimpleFormat = "+simpleFormat.toString());\r
 114                 sa = historian.openStream(items[0].id, "r");\r
 115                 try {                   \r
 116                         sa.reset();\r
 117                         Binding b = Bindings.getBinding( simpleFormat.format );\r
 118                         Object sample = b.createDefault();\r
 119                         for (int i=0; i<sa.size(); i++) {\r
 120                                 sa.get(i, b, sample);\r
 121                                 System.out.println( b.toString(sample) );\r
 122                         }\r
 123                 } finally {\r
 124                         sa.close();\r
 125                 }\r
 126                 \r
 127                 \r
 128         }\r
 129 \r
 130 }\r