Revert "Add (disabled) dense tensor binary format"

1 files changed, 0 insertions, 87 deletions

diff --git a/vespajlib/src/main/java/com/yahoo/tensor/serialization/DenseBinaryFormat.java b/vespajlib/src/main/java/com/yahoo/tensor/serialization/DenseBinaryFormat.java
deleted file mode 100644
index 0a97576d5b7..00000000000
--- a/vespajlib/src/main/java/com/yahoo/tensor/serialization/DenseBinaryFormat.java
+++ /dev/null
@@ -1,87 +0,0 @@
-package com.yahoo.tensor.serialization;
-
-import com.google.common.annotations.Beta;
-import com.yahoo.io.GrowableByteBuffer;
-import com.yahoo.tensor.DimensionSizes;
-import com.yahoo.tensor.IndexedTensor;
-import com.yahoo.tensor.Tensor;
-import com.yahoo.tensor.TensorType;
-import com.yahoo.text.Utf8;
-
-import java.util.Iterator;
-
-/**
- * Implementation of a dense binary format for a tensor on the form:
- *
- * Sorted dimensions = num_dimensions [dimension_str_len dimension_str_bytes dimension_size_int]*
- * Cell_values = [double, double, double, ...]*
- * where values are encoded in order of increasing indexes in each dimension, increasing 
- * indexes of later dimensions in the dimension type before earlier.
- * 
- * @author bratseth
- */
-@Beta
-public class DenseBinaryFormat implements BinaryFormat {
-
-    @Override
-    public void encode(GrowableByteBuffer buffer, Tensor tensor) {
-        if ( ! ( tensor instanceof IndexedTensor))
-            throw new RuntimeException("The dense format is only supported for indexed tensors");
-        encodeDimensions(buffer, (IndexedTensor)tensor);
-        encodeCells(buffer, tensor);
-    }
-
-    private void encodeDimensions(GrowableByteBuffer buffer, IndexedTensor tensor) {
-        buffer.putInt1_4Bytes(tensor.type().dimensions().size());
-        for (int i = 0; i < tensor.type().dimensions().size(); i++) {
-            buffer.putUtf8String(tensor.type().dimensions().get(i).name());
-            buffer.putInt1_4Bytes(tensor.dimensionSizes().size(i));
-        }
-    }
-
-    private void encodeCells(GrowableByteBuffer buffer, Tensor tensor) {
-        Iterator<Double> i = tensor.valueIterator();
-        while (i.hasNext())
-            buffer.putDouble(i.next());
-    }
-
-    @Override
-    public Tensor decode(TensorType type, GrowableByteBuffer buffer) {
-        DimensionSizes sizes = decodeDimensionSizes(type, buffer);        
-        Tensor.Builder builder = Tensor.Builder.of(type, sizes);
-        decodeCells(sizes, buffer, (IndexedTensor.BoundBuilder)builder);
-        return builder.build();
-    }
-
-    private DimensionSizes decodeDimensionSizes(TensorType type, GrowableByteBuffer buffer) {
-        int dimensionCount = buffer.getInt1_4Bytes();
-        if (type.dimensions().size() != dimensionCount)
-            throw new IllegalArgumentException("Type/instance mismatch: Instance has " + dimensionCount + 
-                                               " dimensions but type is " + type);
-        
-        DimensionSizes.Builder builder = new DimensionSizes.Builder(dimensionCount);
-        for (int i = 0; i < dimensionCount; i++) {
-            TensorType.Dimension expectedDimension = type.dimensions().get(i);
-
-            String encodedName = buffer.getUtf8String();
-            int encodedSize = buffer.getInt1_4Bytes();
-
-            if ( ! expectedDimension.name().equals(encodedName))
-                throw new IllegalArgumentException("Type/instance mismatch: Instance has '" + encodedName +
-                                                   "' as dimension " + i + " but type is " + type);
-
-            if (expectedDimension.size().isPresent() && expectedDimension.size().get() < encodedSize)
-                throw new IllegalArgumentException("Type/instance mismatch: Instance has size " + encodedSize + 
-                                                   " in " + expectedDimension  + " in type " + type);
-
-            builder.set(i, encodedSize);
-        }
-        return builder.build();
-    }
-
-    private void decodeCells(DimensionSizes sizes, GrowableByteBuffer buffer, IndexedTensor.BoundBuilder builder) {
-        for (int i = 0; i < sizes.totalSize(); i++)
-            builder.cellByDirectIndex(i, buffer.getDouble());
-    }
-
-}