carbean.java

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                                result = converter.
                                    getAsString(FacesContext.
                                                getCurrentInstance(),
                                                component, result);
                            }
                        }
                    }
                    return result;
                }


                public int hashCode() {
                    return CarBean.this.components.hashCode();
                }


                public boolean isEmpty() {
                    return CarBean.this.components.isEmpty();
                }


                public java.util.Set keySet() {
                    return CarBean.this.components.keySet();
                }


                public Object put(Object k, Object v) {
                    throw new UnsupportedOperationException();
                }


                public void putAll(Map t) {
                    throw new UnsupportedOperationException();
                }


                public Object remove(Object k) {
                    throw new UnsupportedOperationException();
                }


                public int size() {
                    return CarBean.this.components.size();
                }


                public java.util.Collection values() {
                    ArrayList result = new ArrayList();
                    Iterator keys = keySet().iterator();
                    while (keys.hasNext()) {
                        result.add(get(keys.next()));
                    }
                    return result;
                }
            };

    }


    /**
     * <p>For each entry in data, create component and cause it to be
     * populated with values.</p>
     */

    private void initComponentsFromProperties(FacesContext context,
                                              ResourceBundle data) {
        Application application = context.getApplication();
        Enumeration keys = data.getKeys();
        String
            key = null,
            value = null,
            componentType = null,
            valueType = null;
        UIComponent component = null;

        // populate the map
        while (keys.hasMoreElements()) {
            key = (String) keys.nextElement();
            if (key == null) {
                continue;
            }
            // skip secondary keys.
            if (-1 != key.indexOf("_")) {
                continue;
            }
            value = data.getString(key);
            componentType = data.getString(key + "_componentType");
            valueType = data.getString(key + "_valueType");
            if (log.isDebugEnabled()) {
                log.debug("populating map for " + key + "\n" +
                          "\n\tvalue: " + value +
                          "\n\tcomponentType: " + componentType +
                          "\n\tvalueType: " + valueType);
            }
            // create the component for this componentType
            component = application.createComponent(componentType);
            populateComponentWithValue(context, component, componentType,
                                       value, valueType);
            components.put(key, component);
        }
    }


    /**
     * <p>populate the argument component with values, being sensitive
     * to the possible multi-nature of the values, and to the type of
     * the values.</p>
     */

    private void populateComponentWithValue(FacesContext context,
                                            UIComponent component,
                                            String componentType,
                                            String value, String valueType) {
        Application application = context.getApplication();
        Converter converter = null;
        UISelectItems items = null;

        // if we need a converter, and can have a converter
        if (!valueType.equals("java.lang.String") &&
            component instanceof ValueHolder) {
            // if so create it,
            try {
                converter =
                    application.createConverter(CarStore.loadClass(valueType,
                                                                   this));
            } catch (ClassNotFoundException cne) {
                FacesMessage errMsg = MessageFactory.getMessage(
                    CONVERTER_ERROR_MESSAGE_ID,
                    (new Object[]{valueType}));
                throw new IllegalStateException(errMsg.getSummary());
            }
            // add it to our component,
            ((ValueHolder) component).setConverter(converter);
        }

        // if this component is a SelectOne or SelectMany, take special action
        if (isMultiValue(componentType)) {
            // create a UISelectItems instance
            items = new UISelectItems();
            items.setValue(parseStringIntoArrayList(context, component,
                                                    value, valueType,
                                                    converter));
            // add it to the component
            component.getChildren().add(items);
        } else {
            // we have a single value
            if (null != converter) {
                component.getAttributes().put("value",
                                              converter.getAsObject(context,
                                                                    component,
                                                                    value));
            } else {
                component.getAttributes().put("value", value);
            }
        }
    }


    /**
     * @return true if componentType starts with SelectMany or SelectOne
     */
    private boolean isMultiValue(String componentType) {
        if (null == componentType) {
            return false;
        }
        return (componentType.startsWith("javax.faces.SelectMany") ||
            componentType.startsWith("javax.faces.SelectOne"));
    }


    /**
     * Tokenizes the passed in String which is a comma separated string of
     * option values that serve as keys into the main resources file.
     * For example, optionStr could be "Disc,Drum", which corresponds to
     * brake options available for the chosen car. This String is tokenized
     * and used as key into the main resource file to get the localized option
     * values and stored in the passed in ArrayList.
     */
    public ArrayList parseStringIntoArrayList(FacesContext context,
                                              UIComponent component,
                                              String value,
                                              String valueType,
                                              Converter converter) {
        ArrayList optionsList = null;
        int i = 0;
        Object optionValue = null;
        String
            optionKey = null,
            optionLabel = null;
        Map nonLocalizedOptionValues = null;

        if (value == null) {
            return null;
        }
        StringTokenizer st = new StringTokenizer(value, ",");
        optionsList = new ArrayList((st.countTokens()) + 1);
        while (st.hasMoreTokens()) {
            optionKey = st.nextToken();
            try {
                optionLabel = resources.getString(optionKey);
            } catch (MissingResourceException e) {
                // if we can't find a hit, the key is the label
                optionLabel = optionKey;
            }

            if (null != converter) {
                // PENDING deal with the converter case
            } else {
                optionsList.add(new SelectItem(optionKey, optionLabel));
            }
        }
        return optionsList;
    }


    public String updatePricing() {
        getCurrentPrice();
        return null;
    }


    public Integer getCurrentPrice() {
        // go through our options and try to get the prices
        int sum = ((Integer) ((ValueHolder) getComponents().get("basePrice")).
            getValue()).intValue();
        Iterator iter = getComponents().keySet().iterator();
        String key = null;
        Object value = null;
        UIComponent component = null;
        while (iter.hasNext()) {
            key = (String) iter.next();
            component = (UIComponent) getComponents().get(key);
            value = component.getAttributes().get("value");
            if (null == value || (!(component instanceof UIInput))) {
                continue;
            }

            // if the value is a String, see if we have priceData for it
            if (value instanceof String) {
                try {
                    sum +=
                        Integer.valueOf(priceData.getString((String) value))
                        .intValue();
                } catch (NumberFormatException e) {
                }
            }
            // if the value is a Boolean, look up the price by name
            else if (value instanceof Boolean &&
                ((Boolean) value).booleanValue()) {
                try {
                    sum +=
                        Integer.valueOf(priceData.getString(key)).intValue();
                } catch (NumberFormatException e) {
                }
            } else if (value instanceof Number) {
                sum += ((Number) value).intValue();
            }
        }
        Integer result = new Integer(sum);
        // store the new price into the component for currentPrice
        ((ValueHolder) getComponents().get("currentPrice")).
            setValue(result);
        return result;
    }


    public Map getComponents() {
        return components;
    }


    public Map getAttributes() {
        return attributes;
    }


}