bundles/org.simantics.databoard/src/org/simantics/databoard/serialization/impl/DoubleArraySerializer.java

   1 package org.simantics.databoard.serialization.impl;\r
   2 \r
   3 import java.io.DataInput;\r
   4 import java.io.DataOutput;\r
   5 import java.io.IOException;\r
   6 import java.util.List;\r
   7 \r
   8 import org.simantics.databoard.binding.ArrayBinding;\r
   9 import org.simantics.databoard.serialization.SerializationException;\r
  10 import org.simantics.databoard.serialization.Serializer.NonRecursiveSerializer;\r
  11 import org.simantics.databoard.type.ArrayType;\r
  12 import org.simantics.databoard.util.Range;\r
  13 \r
  14 public class DoubleArraySerializer extends NonRecursiveSerializer {\r
  15 \r
  16         Range length;\r
  17         Integer fixedLength, fixedSize;\r
  18         \r
  19         public DoubleArraySerializer(ArrayBinding binding)\r
  20         {\r
  21                 ArrayType arrayType = (ArrayType) binding.type();                       \r
  22                 this.length = arrayType.getLength();\r
  23                 if (length!=null && length.getLower().equals(length.getUpper()) && length.getLower().getValue()!=null)\r
  24                 {\r
  25                         fixedLength = length.getLower().getValue().intValue();\r
  26                         fixedSize = fixedLength * 8;\r
  27                 }\r
  28         }\r
  29         \r
  30         @Override\r
  31         public Object deserialize(DataInput in)\r
  32         throws IOException \r
  33         {\r
  34                 int length = fixedSize != null ? fixedLength : in.readInt();\r
  35                 if (length<0) throw new SerializationException("Cannot use negative array length");\r
  36                 assertRemainingBytes(in, length*8L);                                    \r
  37                 \r
  38                 double[] array = new double[length];\r
  39                 for(int i=0;i<array.length;++i)\r
  40                         array[i] = in.readDouble();\r
  41                 return array;\r
  42         }\r
  43         \r
  44         public Object deserializeToTry(DataInput in, List<Object> identities, Object obj) throws IOException\r
  45         {\r
  46                 int length = fixedLength != null ? fixedLength : in.readInt();\r
  47                 double[] array = (double[]) obj;\r
  48                 if (length!=array.length) array = new double[ length ];\r
  49                 assertRemainingBytes(in, length*8L);                                    \r
  50                 \r
  51                 for (int i=0; i<array.length;i++)\r
  52                         array[i] = in.readDouble();\r
  53                 \r
  54                 return array;\r
  55         }\r
  56 \r
  57         @Override\r
  58         public void deserializeTo(DataInput in, Object obj) throws IOException {\r
  59                 int length = fixedLength != null ? fixedLength : in.readInt();          \r
  60                 double[] array = (double[]) obj;\r
  61                 if (length!=array.length) throw new SerializationException("primitive array is size immutable");\r
  62                 assertRemainingBytes(in, length*8L);\r
  63                 \r
  64                 for (int i=0; i<array.length;i++)\r
  65                         array[i] = in.readDouble();\r
  66         }\r
  67         \r
  68         @Override\r
  69         public void skip(DataInput in)\r
  70         throws IOException {\r
  71                 int length = fixedSize != null ? fixedLength : in.readInt();                    \r
  72                 in.skipBytes(length * 8);\r
  73         }\r
  74         \r
  75         @Override\r
  76         public void serialize(DataOutput out, Object obj)\r
  77         throws IOException \r
  78         {\r
  79                 double[] array = (double[])obj;\r
  80                 if (fixedSize==null) \r
  81                         out.writeInt(array.length);\r
  82                 for(double f : array)\r
  83                         out.writeDouble(f);\r
  84         }\r
  85 \r
  86         @Override\r
  87         public Integer getConstantSize() {\r
  88                 return fixedSize;\r
  89         }\r
  90 \r
  91         @Override\r
  92         public int getSize(Object obj) {\r
  93                 if (fixedSize!=null) return fixedSize;\r
  94                 double[] array = (double[])obj;                 \r
  95                 return 4 + 8 * array.length;\r
  96         }\r
  97         \r
  98         @Override\r
  99         public int getMinSize() {\r
 100                 return fixedSize != null ? fixedSize : 4;\r
 101         }\r
 102         \r
 103 }\r
 104 \r