EditBooleanConverter.java

package jpaoletti.jpm.struts.converter;

import jpaoletti.jpm.converter.ConverterException;
import jpaoletti.jpm.core.PMContext;

/**
 * Edit a boolean. with-null property indicates a third option with "null" value
 *
 * @author jpaoletti
 */
public class EditBooleanConverter extends StrutsEditConverter {

    @Override
    public Object build(PMContext ctx) throws ConverterException {
        final String res = (String) ctx.getFieldValue();
        if (res.compareTo("true") == 0) {
            return true;
        }
        if (res.compareTo("false") == 0) {
            return false;
        }
        if (!isWithNull()) {
            throw new ConverterException("pm.struts.converter.invalid.boolean");
        } else {
            return null;
        }
    }

    @Override
    public String visualize(PMContext ctx) throws ConverterException {
        final Boolean p = (Boolean) getValue(ctx.getEntityInstance(), ctx.getField());
        if (!isWithNull()) {
            return super.visualize("boolean_converter.jsp?checked=" + ((p != null && p.booleanValue()) ? "checked" : ""));
        } else {
            return super.visualize("nboolean_converter.jsp?checked=" + ((p == null) ? "null" : (p.booleanValue()) ? "true" : "false"));
        }
    }

    protected boolean isWithNull() {
        return Boolean.parseBoolean(getConfig("with-null", "false"));
    }
}