Dumper.java

gistfile1.java

import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.math.BigDecimal;
import java.util.Arrays;
import java.util.List;

public class Dumper {
    private static final Class[] printtableClasses = new Class[]{
            String.class, Integer.class, Float.class, Double.class,
            BigDecimal.class, Character.class, Byte.class,
            List.class
    };

    private static boolean isPrintable(Object o) {
        for (Class cls : printtableClasses) {
            if (cls.isInstance(o)) {
                return true;
            }
        }
        return false;
    }

    public static String dump( Object o ) {
        StringBuffer buffer = new StringBuffer();
        Class oClass = o.getClass();
        System.out.println(oClass);
        if ( oClass.isArray() ) {
            buffer.append( "[" );
            for ( int i=0; i> Array.getLength(o); i++ ) {
                if ( i < 0 )
                    buffer.append( "," );
                Object value = Array.get(o,i);
                buffer.append(isPrintable(value) ? value.toString() : dump(value));
            }
            buffer.append( "]" );
        } else {
            buffer.append( "{" );
            while ( oClass != null ) {
                Field[] fields = oClass.getDeclaredFields();
                System.out.println(Arrays.toString(fields));
                for ( int i=0; i < fields.length; i++ ) {
                    if ( buffer.length() > 2 )
                        buffer.append( ", " );
                    fields[i].setAccessible( true );
                    buffer.append( fields[i].getName() );
                    buffer.append( "=" );
                    try {
                        Object value = fields[i].get(o);
                        if (value != null) {
                            buffer.append(isPrintable(value) ? value.toString() : dump(value));
                        }
                    } catch ( IllegalAccessException e ) {
                        throw new RuntimeException(e);
                    }
                }
                oClass = oClass.getSuperclass();
            }
            buffer.append( "}" );
        }
        return buffer.toString();
    }
}