How to create a raster unique value renderer

static IRasterRenderer uniqueValueRenderer(IRasterDataset rasterDataset)throws
    Exception{
    //get the raster attribute table and the size of the table
    IRaster2 raster = new IRaster2Proxy(rasterDataset.createDefaultRaster());
    ITable rasterTable = raster.getAttributeTable();
    if (rasterTable == null){
        return null;
    }
    int tableRows = rasterTable.rowCount(null);
    //create colors for each unique value
    IRandomColorRamp colorRamp = new RandomColorRamp();
    colorRamp.setSize(tableRows);
    colorRamp.setSeed(100);
    boolean createColorRamp[] = {
        false
    };
    colorRamp.createRamp(createColorRamp);
    if (createColorRamp[0] == false){
        return null;
    }
    //Create unique value renderer
    IRasterUniqueValueRenderer uvRenderer = new RasterUniqueValueRenderer();
    IRasterRenderer rasterRenderer = (IRasterRenderer)uvRenderer;
    rasterRenderer.setRasterByRef(rasterDataset.createDefaultRaster());
    rasterRenderer.update();
    //set renderer properties
    uvRenderer.setHeadingCount(1);
    uvRenderer.setHeading(0, "All Data Value");
    uvRenderer.setClassCount(0, tableRows);
    uvRenderer.setField("Value"); //or any other field in the table
    IRow row;
    ISimpleFillSymbol fillSymbol;
    for (int i = 0; i < tableRows; i++){
        row = rasterTable.getRow(i);
        uvRenderer.addValue(0, i, row.getValue(i)); // assuming the raster is 8 bit
        uvRenderer.setLabel(0, i, row.getValue(0).toString());
        fillSymbol = new SimpleFillSymbol();
        fillSymbol.setColor(colorRamp.getColor(i));
        uvRenderer.setSymbol(0, i, (ISymbol)fillSymbol);
    }
    return rasterRenderer;
}