Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.databoard / src / org / simantics / databoard / serialization / impl / ByteArraySerializer.java

diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/serialization/impl/ByteArraySerializer.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/serialization/impl/ByteArraySerializer.java
new file mode 100644 (file)
index 0000000..8edcc6b
--- /dev/null
+++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/serialization/impl/ByteArraySerializer.java
@@ -0,0 +1,101 @@
+package org.simantics.databoard.serialization.impl;\r
+\r
+import java.io.DataInput;\r
+import java.io.DataOutput;\r
+import java.io.IOException;\r
+import java.util.List;\r
+\r
+import org.simantics.databoard.binding.ArrayBinding;\r
+import org.simantics.databoard.binding.error.BindingException;\r
+import org.simantics.databoard.serialization.SerializationException;\r
+import org.simantics.databoard.serialization.Serializer.NonRecursiveSerializer;\r
+import org.simantics.databoard.type.ArrayType;\r
+import org.simantics.databoard.util.Range;\r
+\r
+public class ByteArraySerializer extends NonRecursiveSerializer {\r
+\r
+       Range length;\r
+       Integer fixedLength, fixedSize;\r
+       \r
+       public ByteArraySerializer(ArrayBinding binding)\r
+       {\r
+               ArrayType arrayType = (ArrayType) binding.type();\r
+               this.length = arrayType.getLength();\r
+               if (length!=null && length.getLower().equals(length.getUpper()) && length.getLower().getValue()!=null)\r
+               {\r
+                       fixedLength = length.getLower().getValue().intValue();\r
+                       fixedSize = fixedLength * 1;\r
+               }\r
+       }\r
+       \r
+       @Override\r
+       public Object deserialize(DataInput in)\r
+       throws IOException \r
+       {\r
+               int length = fixedSize != null ? fixedLength : in.readInt();\r
+               if (length<0) throw new SerializationException("Cannot use negative array length");\r
+               assertRemainingBytes(in, length);                       \r
+               \r
+               byte[] array = new byte[length];\r
+               in.readFully(array);\r
+               return array;\r
+       }\r
+       \r
+       @Override\r
+       public void deserializeTo(DataInput in, Object obj) throws IOException {\r
+               try {\r
+                       int length = fixedLength != null ? fixedLength : in.readInt();                  \r
+                       byte[] array = (byte[]) obj;\r
+                       if (length!=array.length) throw new BindingException("primitive array is size immutable");\r
+                       assertRemainingBytes(in, length);                       \r
+                       in.readFully(array);\r
+               } catch (BindingException e) {\r
+                       throw new IOException( e ); \r
+               }\r
+       }\r
+       \r
+       public Object deserializeToTry(DataInput in, List<Object> identities, Object obj) throws IOException\r
+       {\r
+               int length = fixedLength != null ? fixedLength : in.readInt();\r
+               byte[] array = (byte[]) obj;\r
+               if (length!=array.length) obj = new byte[ length ];\r
+               assertRemainingBytes(in, length);                       \r
+               in.readFully(array);            \r
+               return array;\r
+       }\r
+\r
+       @Override\r
+       public void skip(DataInput in)\r
+       throws IOException {\r
+               int length = fixedSize != null ? fixedLength : in.readInt();                    \r
+               in.skipBytes( length );\r
+       }\r
+       \r
+       @Override\r
+       public void serialize(DataOutput out, Object obj)\r
+       throws IOException \r
+       {\r
+               byte[] array = (byte[])obj;\r
+               if (fixedSize==null) \r
+                       out.writeInt(array.length);\r
+               out.write(array);\r
+       }\r
+\r
+       @Override\r
+       public Integer getConstantSize() {\r
+               return fixedSize;\r
+       }\r
+\r
+       @Override\r
+       public int getSize(Object obj) {\r
+               if (fixedSize!=null) return fixedSize;\r
+               byte[] array = (byte[])obj;                     \r
+               return 4 + array.length;\r
+       }\r
+       \r
+       @Override\r
+       public int getMinSize() {\r
+               return fixedSize != null ? fixedSize : 4;\r
+       }\r
+       \r
+}
\ No newline at end of file