Application: gvSIG desktop

package org.gvsig.expressionevaluator.spi.formatter.value;

import org.gvsig.expressionevaluator.ExpressionBuilder;

import org.gvsig.expressionevaluator.ExpressionBuilder.Value;

import org.gvsig.expressionevaluator.Formatter;

/**

 *

 * @author jjdelcerro

 */

public class BaseFormatter implements Formatter<Value> {

    private final Formatter<ExpressionBuilder.Value>[] formatters;

    public BaseFormatter() {

      this(null);

    }

    public BaseFormatter(Formatter<Value> formatter) {

        if( formatter==null || ExpressionBuilder.EMPTY_FORMATTER==formatter ) {

          formatter = this;

        }

        this.formatters = new Formatter[]{

            new Time(formatter),

            new Date(formatter),

            new Timestamp(formatter),

            new Extract(formatter),

            new Getattr(formatter),

            new GetItem(formatter),

            new Dict(formatter),

            new Tuple(formatter),

            new Case(formatter)

        };

    }

    @Override

    public boolean canApply(Value value) {

        for (Formatter<Value> formatter : formatters) {

            if (formatter.canApply(value)) {

                return true;

            }

        }

        return false;

    }

    @Override

    public String format(Value value) {

        for (Formatter<Value> formatter : formatters) {

            if (formatter.canApply(value)) {

                return formatter.format(value);

            }

        }

        return value.toString(this);

    }

}