scilab/modules/xcos/src/java/org/scilab/modules/xcos/block/ContextUpdate.java

   1 package org.scilab.modules.xcos.block;
   2
   3 import java.io.File;
   4 import java.io.IOException;
   5
   6 import org.scilab.modules.hdf5.scilabTypes.ScilabDouble;
   7 import org.scilab.modules.hdf5.scilabTypes.ScilabList;
   8 import org.scilab.modules.xcos.io.BlockReader;
   9 import org.scilab.modules.xcos.utils.XcosInterpreterManagement;
  10 import org.scilab.modules.xcos.utils.XcosInterpreterManagement.InterpreterException;
  11
  12 public abstract class ContextUpdate extends BasicBlock{
  13
  14     private static final long serialVersionUID = 6076826729067963560L;
  15
  16     /**
  17      * This enum represent all the subclasses of ContextUpdate .
  18      *
  19      * It is used to easily loop over a BasicBlock I/O blocks
  20      */
  21     public enum IOBlocks {
  22         EventInBlock(EventInBlock.class),
  23         EventOutBlock(EventOutBlock.class),
  24         ExplicitInBlock(ExplicitInBlock.class),
  25         ExplicitOutBlock(ExplicitOutBlock.class),
  26         ImplicitInBlock(ImplicitInBlock.class),
  27         ImplicitOutBlock(ImplicitOutBlock.class),
  28         Unknow(ContextUpdate.class);
  29
  30         private Class<? extends ContextUpdate> klass;
  31
  32         private IOBlocks(Class<? extends ContextUpdate> klass) {
  33             this.klass = klass;
  34         }
  35
  36         public Class<? extends ContextUpdate> getReferencedClass() {
  37             return klass;
  38         }
  39     }
  40
  41         public ContextUpdate() {
  42                 super();
  43         }
  44
  45         protected ContextUpdate(String label) {
  46                 this();
  47                 setDefaultValues();
  48                 setValue(label);
  49         }
  50
  51         /**
  52          * Initialize the block with the default values
  53          */
  54         @Override
  55         protected void setDefaultValues() {
  56                 super.setDefaultValues();
  57                 setNbZerosCrossing(new ScilabDouble(0));
  58                 setNmode(new ScilabDouble(0));
  59                 setODState(new ScilabList());
  60                 setValue(1);
  61         }
  62
  63     public void onContextChange(String[] context) {
  64         //prevent to open twice
  65         if(isLocked()) {
  66             return;
  67         }
  68
  69         final File tempOutput;
  70         final File tempInput;
  71         final File tempContext;
  72         try {
  73             tempInput = File.createTempFile("xcos",".h5");
  74             tempInput.deleteOnExit();
  75
  76             // Write scs_m
  77             tempOutput = exportBlockStruct();
  78             // Write context
  79             tempContext = exportContext(context);
  80
  81             String cmd;
  82
  83             cmd = "xcosBlockEval(\""+tempOutput.getAbsolutePath()+"\"";
  84             cmd += ", \""+tempInput.getAbsolutePath()+"\"";
  85             cmd += ", "+getInterfaceFunctionName();
  86             cmd += ", \""+tempContext.getAbsolutePath()+"\");";
  87
  88                 try {
  89                         XcosInterpreterManagement.synchronousScilabExec(cmd);
  90                 } catch (InterpreterException e) {
  91                         e.printStackTrace();
  92                 }
  93                 BasicBlock modifiedBlock = BlockReader.readBlockFromFile(tempInput.getAbsolutePath());
  94                 updateBlockSettings(modifiedBlock);
  95
  96         } catch (IOException e) {
  97             e.printStackTrace();
  98         }
  99     }
 100 }