com.tonbeller.wcf.convert.EditCtrlConverter.java Source code

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Here is the source code for com.tonbeller.wcf.convert.EditCtrlConverter.java

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/*
 * ====================================================================
 * This software is subject to the terms of the Common Public License
 * Agreement, available at the following URL:
 *   http://www.opensource.org/licenses/cpl.html .
 * Copyright (C) 2003-2004 TONBELLER AG.
 * All Rights Reserved.
 * You must accept the terms of that agreement to use this software.
 * ====================================================================
 *
 * 
 */
package com.tonbeller.wcf.convert;

import java.lang.reflect.InvocationTargetException;
import java.util.Map;

import org.apache.commons.beanutils.PropertyUtils;
import org.apache.log4j.Logger;
import org.w3c.dom.Element;

import com.tonbeller.wcf.format.FormatException;
import com.tonbeller.wcf.format.FormatHandler;
import com.tonbeller.wcf.format.Formatter;
import com.tonbeller.wcf.ui.EditCtrl;
import com.tonbeller.wcf.ui.TypedCtrl;
import com.tonbeller.wcf.utils.XoplonNS;

/**
 * converts user input for a Edit control
 * @see com.tonbeller.wcf.ui.Edit
 * @author av
 */
public class EditCtrlConverter extends NodeConverterBase {
    private static Logger logger = Logger.getLogger(EditCtrlConverter.class);

    /**
     * updates a bean property as well as the value attribute of element
     */
    public void convert(Formatter formatter, Map param, Map fileSource, Element element, Object bean)
            throws FormatException, IllegalAccessException, NoSuchMethodException, InvocationTargetException {

        // disabled = true? return
        if (TypedCtrl.isDisabled(element))
            return;

        String id = EditCtrl.getId(element);
        String[] inputValue = (String[]) param.get(id);

        // input available
        if (inputValue != null && inputValue.length > 0) {

            XoplonNS.removeAttribute(element, "error");

            // parse input
            String formatString = EditCtrl.getFormatString(element);
            try {

                checkRequired(formatter.getLocale(), element, inputValue[0].trim().length() == 0);

                String type = EditCtrl.getType(element);
                FormatHandler handler = formatter.getHandler(type);
                if (handler == null)
                    throw new FormatException("no handler found for type: " + type);

                Object newValue = handler.parse(inputValue[0], formatString);
                String strValue = handler.format(newValue, formatString);
                EditCtrl.setValue(element, strValue);

                String model = EditCtrl.getModelReference(element);
                if (bean != null && model.length() > 0) {
                    PropertyUtils.setProperty(bean, model, newValue);
                }

            } catch (IllegalAccessException e) {
                logger.info("exception caught", e);
                XoplonNS.setAttribute(element, "error", e.getMessage());
                XoplonNS.setAttribute(element, "value", inputValue[0]);
                throw e;
            } catch (NoSuchMethodException e) {
                logger.info("exception caught", e);
                XoplonNS.setAttribute(element, "error", e.getMessage());
                XoplonNS.setAttribute(element, "value", inputValue[0]);
                throw e;
            } catch (InvocationTargetException e) {
                logger.info("exception caught", e);
                XoplonNS.setAttribute(element, "error", e.getMessage());
                XoplonNS.setAttribute(element, "value", inputValue[0]);
                throw e;
            } catch (FormatException e) {
                logger.info("invalid user input: " + e.getMessage());
                XoplonNS.setAttribute(element, "error", e.getMessage());
                XoplonNS.setAttribute(element, "value", inputValue[0]);
                throw e;
            }
        }
    }

    /**
     * initializes the value attribute of element from a bean property.
     */
    public void convert(Formatter formatter, Object bean, Element element)
            throws IllegalAccessException, NoSuchMethodException, InvocationTargetException {

        try {
            String model = EditCtrl.getModelReference(element);
            if (model.length() == 0)
                return;

            String type = EditCtrl.getType(element);
            FormatHandler handler = formatter.getHandler(type);
            if (handler == null)
                throw new FormatException("no handler found for type: " + type);

            Object value = PropertyUtils.getProperty(bean, model);
            String pattern = EditCtrl.getFormatString(element);
            String strValue = handler.format(value, pattern);
            EditCtrl.setValue(element, strValue);

        } catch (IllegalAccessException e) {
            XoplonNS.setAttribute(element, "error", e.getMessage());
            throw e;
        } catch (NoSuchMethodException e) {
            XoplonNS.setAttribute(element, "error", e.getMessage());
            throw e;
        } catch (InvocationTargetException e) {
            XoplonNS.setAttribute(element, "error", e.getMessage());
            throw e;
        } catch (FormatException e) {
            XoplonNS.setAttribute(element, "error", e.getMessage());
            throw e;
        }
    }

}