X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.databoard%2Fsrc%2Forg%2Fsimantics%2Fdataboard%2Fserialization%2Fimpl%2FFloatArraySerializer.java;fp=bundles%2Forg.simantics.databoard%2Fsrc%2Forg%2Fsimantics%2Fdataboard%2Fserialization%2Fimpl%2FFloatArraySerializer.java;h=b995366f61ca8c9c213181335d2266dc1ff5a279;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/serialization/impl/FloatArraySerializer.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/serialization/impl/FloatArraySerializer.java
new file mode 100644
index 000000000..b995366f6
--- /dev/null
+++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/serialization/impl/FloatArraySerializer.java
@@ -0,0 +1,116 @@
+package org.simantics.databoard.serialization.impl;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.List;
+
+import org.simantics.databoard.binding.ArrayBinding;
+import org.simantics.databoard.serialization.SerializationException;
+import org.simantics.databoard.serialization.Serializer.NonRecursiveSerializer;
+import org.simantics.databoard.type.ArrayType;
+import org.simantics.databoard.util.Range;
+
+public class FloatArraySerializer extends NonRecursiveSerializer {
+
+	Range length;
+	Integer fixedLength, fixedSize;
+	
+	public FloatArraySerializer(ArrayBinding binding)
+	{			
+		ArrayType arrayType = (ArrayType) binding.type();
+		this.length = arrayType.getLength();
+		
+		if (length!=null && length.getLower().equals(length.getUpper()) && length.getLower().getValue()!=null)
+		{
+			fixedLength = length.getLower().getValue().intValue();
+			fixedSize = fixedLength * 4;
+		}
+	}
+	
+	@Override
+	public Object deserialize(DataInput in)
+	throws IOException {
+		int length = fixedLength != null ? fixedLength : in.readInt();
+		if (length<0) throw new SerializationException("Cannot use negative array length");
+		assertRemainingBytes(in, length*4L);					
+		
+		float[] array = new float[length];
+		for(int i=0;i<array.length;++i)
+			array[i] = in.readFloat();
+		return array;
+	}
+	
+	public Object deserializeToTry(DataInput in, List<Object> identities, Object obj) throws IOException
+	{
+		int length = fixedLength != null ? fixedLength : in.readInt();
+		float[] array = (float[]) obj;
+		if (length!=array.length) array = new float[ length ];
+		assertRemainingBytes(in, length*4L);					
+		
+		for (int i=0; i<array.length;i++)
+			array[i] = in.readFloat();
+		
+		return array;
+	}
+	
+	@Override
+	public void deserializeTo(DataInput in, Object obj) throws IOException {
+		int length = fixedLength != null ? fixedLength : in.readInt();
+		float[] array = (float[]) obj;
+		if (length!=array.length) throw new SerializationException("primitive array is size immutable");
+		assertRemainingBytes(in, length*4L);					
+		for (int i=0; i<array.length;i++)
+			array[i] = in.readFloat();
+	}
+
+	@Override
+	public void skip(DataInput in)
+	throws IOException {
+		int length = fixedSize != null ? fixedLength : in.readInt();			
+		in.skipBytes( length * 4 );
+	}
+	
+	@Override
+	public void serialize(DataOutput out, Object obj)
+		throws IOException {
+		float[] array = (float[])obj;
+		if (fixedSize==null) 
+			out.writeInt(array.length);
+		for(float f : array)
+			out.writeFloat(f);
+	}
+
+	@Override
+	public Integer getConstantSize() {
+		return fixedSize;
+	}
+
+	@Override
+	public int getSize(Object obj) {
+		if (fixedSize!=null) return fixedSize;
+		float[] array = (float[])obj;			
+		return 4 + 4 * array.length;
+	}
+	
+	/**
+	 * Get the number of bytes it takes to output length field of value <code>length</code>.
+	 *  
+	 * @param length length value
+	 * @return bytes required
+	 */
+	public static int getSizeOfPutLength(int length)
+	{
+		if(length < 0x80) return 1;		
+		if(length < 0x4080) return 2;
+		if(length < 0x204000) return 3;
+		if(length < 0x10200000) return 4;
+		return 5;
+	}
+	
+	@Override
+	public int getMinSize() {
+		return fixedSize != null ? fixedSize : 4;
+	}
+		
+}
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