OutputChannel.java

package uk.org.smithfamily.mslogger.ecuDef;

import java.lang.reflect.Field;

public class OutputChannel
{
    private String     name;
    private String     type;
    private int        offset;
    private String     units;
    private String     scale;
    private double     translate;
    private DataSource source;
    private Field      field;

    public OutputChannel(String name, String type, int offset, String units, String scale, double translate, DataSource source)
    {
        this.name = name;
        this.type = type;
        this.offset = offset;
        this.units = units;
        this.scale = scale;
        this.translate = translate;
        this.source = source;
        if (source != null)
        {
            Class<?> c = source.getClass();

            try
            {
                field = c.getDeclaredField(name);
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
    }
    
    public OutputChannel(String name, String type, int offset, String units, double scale, double translate, DataSource source)
    {
        this.name = name;
        this.type = type;
        this.offset = offset;
        this.units = units;
        this.scale = Double.toString(scale);
        this.translate = translate;
        this.source = source;
        if (source != null)
        {
            Class<?> c = source.getClass();

            try
            {
                field = c.getDeclaredField(name);
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
    }
    
    public double getValue()
    {
        double value = 0;
        if (field != null)
        {
            try
            {
                value = field.getDouble(source);
            }
            catch (Exception e)
            {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        return value;
    }

    public String getName()
    {
        return name;
    }

    public String getType()
    {
        return type;
    }

    public int getOffset()
    {
        return offset;
    }

    public String getUnits()
    {
        return units;
    }

    public double getScale()
    {
        return Double.parseDouble(scale);
    }

    public double getTranslate()
    {
        return translate;
    }

    public DataSource getSource()
    {
        return source;
    }

    public String toString()
    {
        return String.format("OutputChannel(\"%s\",\"%s\",%d,\"%s\",%s,%f,this)", name, type, offset, units, scale, translate);
    }
}