Java tutorial
/* * Copyright 2004 Sun Microsystems, Inc. All Rights Reserved. * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistribution in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * Neither the name of Sun Microsystems, Inc. or the names of * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * This software is provided "AS IS," without a warranty of any * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY * EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY * DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT OF OR * RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE OR * ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE * FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, * SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF * THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that this software is not designed, licensed or * intended for use in the design, construction, operation or * maintenance of any nuclear facility. */ package org.apache.cocoon.faces.samples.carstore; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; 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; /** * <p>A helper class that customizes a CarBean for a set of options * in a package.</p> * * <p>This class reads its settings from a Properties file</p> */ public class CarCustomizer extends Object { protected static final Log log = LogFactory.getLog(CarCustomizer.class); // // 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) { FacesContext context = FacesContext.getCurrentInstance(); if (log.isDebugEnabled()) { log.debug("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(); Enumeration keys = bundle.getKeys(); String key = null, disabledStr = null, curSetting = null; Boolean disabled = null; UIComponent component = null; Converter converter = null; Object valueToSet = null; while (keys.hasMoreElements()) { 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 disabled = null; try { if (null != (disabledStr = bundle.getString(key + "_disabled"))) { disabled = Boolean.valueOf(disabledStr); } } catch (Throwable e) { } 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); } } } }