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package carstore;
import javax.faces.component.UIComponent;
import javax.faces.component.ValueHolder;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import java.util.Enumeration;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* <p>A helper class that customizes a CarBean for a set of options
* in a package.</p>
* <p/>
* <p>This class reads its settings from a Properties file</p>
*/
public class CarCustomizer {
private static final Logger LOGGER = Logger.getLogger("carstore");
//
// Relationship Instance Variables
//
private ResourceBundle bundle = null;
public CarCustomizer() {
this.init(CarStore.DEFAULT_PACKAGE_PROPERTIES);
}
public CarCustomizer(String bundleName) {
this.init(bundleName);
}
private void init(String bundleName) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Loading bundle: " + bundleName + ".");
}
bundle = ResourceBundle.getBundle(bundleName);
}
private String buttonStyle = null;
public String getButtonStyle() {
return buttonStyle;
}
public void setButtonStyle(String newButtonStyle) {
buttonStyle = newButtonStyle;
}
public void customizeCar(CarBean toCustomize) {
FacesContext context = FacesContext.getCurrentInstance();
String disabledStr;
String curSetting;
UIComponent component;
Converter converter;
Object valueToSet;
for (Enumeration keys = bundle.getKeys(); keys.hasMoreElements();) {
String key = (String) keys.nextElement();
// skip null and secondary keys.
if (key == null || -1 != key.indexOf('_')) {
continue;
}
// skip null values
if (null == (curSetting = bundle.getString(key))) {
continue;
}
// skip null components
if (null ==
(component =
(UIComponent) toCustomize.getComponents().get(key))) {
continue;
}
// handle the disabled setting, if necessary
Boolean disabled = null;
try {
if (null !=
(disabledStr = bundle.getString(key + "_disabled"))) {
disabled = Boolean.valueOf(disabledStr);
}
} catch (Throwable e) {
// do nothing
}
if (null != disabled) {
component.getAttributes().put("disabled", disabled);
}
// set the value
// If the component can and does have a converter
if (component instanceof ValueHolder &&
(null != (converter =
((ValueHolder) component).getConverter()))) {
valueToSet = converter.getAsObject(context, component,
curSetting);
} else {
valueToSet = curSetting;
}
if (component instanceof ValueHolder) {
((ValueHolder) component).setValue(valueToSet);
}
}
}
}