1 /*
   2  * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.javafx.property.adapter;
  27 
  28 import java.lang.reflect.Method;
  29 
  30 import sun.reflect.misc.ReflectUtil;
  31 
  32 /**
  33  */
  34 public class JavaBeanPropertyBuilderHelper {
  35 
  36     private static final String IS_PREFIX = "is";
  37     private static final String GET_PREFIX = "get";
  38     private static final String SET_PREFIX = "set";
  39 
  40     private String propertyName;
  41     private Class<?> beanClass;
  42     private Object bean;
  43     private String getterName;
  44     private String setterName;
  45     private Method getter;
  46     private Method setter;
  47     private PropertyDescriptor descriptor;
  48 
  49     public void name(String propertyName) {
  50         if ((propertyName == null)? this.propertyName != null : !propertyName.equals(this.propertyName)) {
  51             this.propertyName = propertyName;
  52             this.descriptor = null;
  53         }
  54     }
  55 
  56     public void beanClass(Class<?> beanClass) {
  57         if ((beanClass == null)? this.beanClass != null : !beanClass.equals(this.beanClass)) {
  58             ReflectUtil.checkPackageAccess(beanClass);
  59             this.beanClass = beanClass;
  60             this.descriptor = null;
  61         }
  62     }
  63 
  64     public void bean(Object bean) {
  65         this.bean = bean;
  66         if (bean != null) {
  67             Class<?> newClass = bean.getClass();
  68             if ((beanClass == null) || !beanClass.isAssignableFrom(newClass)) {
  69                 ReflectUtil.checkPackageAccess(newClass);
  70                 this.beanClass = newClass;
  71                 this.descriptor = null;
  72             }
  73         }
  74     }
  75 
  76     public Object getBean() {
  77         return bean;
  78     }
  79 
  80     public void getterName(String getterName) {
  81         if ((getterName == null)? this.getterName != null : !getterName.equals(this.getterName)) {
  82             this.getterName = getterName;
  83             this.descriptor = null;
  84         }
  85     }
  86 
  87     public void setterName(String setterName) {
  88         if ((setterName == null)? this.setterName != null : !setterName.equals(this.setterName)) {
  89             this.setterName = setterName;
  90             this.descriptor = null;
  91         }
  92     }
  93 
  94     public void getter(Method getter) {
  95         if ((getter == null)? this.getter != null : !getter.equals(this.getter)) {
  96             this.getter = getter;
  97             this.descriptor = null;
  98         }
  99     }
 100 
 101     public void setter(Method setter) {
 102         if ((setter == null)? this.setter != null : !setter.equals(this.setter)) {
 103             this.setter = setter;
 104             this.descriptor = null;
 105         }
 106     }
 107 
 108     public PropertyDescriptor getDescriptor() throws NoSuchMethodException {
 109         if (descriptor == null) {
 110             if (propertyName == null) {
 111                 throw new NullPointerException("Property name has to be specified");
 112             }
 113             if (propertyName.isEmpty()) {
 114                 throw new IllegalArgumentException("Property name cannot be empty");
 115             }
 116             final String capitalizedName = ReadOnlyPropertyDescriptor.capitalizedName(propertyName);
 117             Method getterMethod = getter;
 118             if (getterMethod == null) {
 119                 if ((getterName != null) && !getterName.isEmpty()) {
 120                     getterMethod = beanClass.getMethod(getterName);
 121                 } else {
 122                     try {
 123                         getterMethod = beanClass.getMethod(IS_PREFIX + capitalizedName);
 124                     } catch (NoSuchMethodException e) {
 125                         getterMethod = beanClass.getMethod(GET_PREFIX + capitalizedName);
 126                     }
 127                 }
 128             }
 129             Method setterMethod = setter;
 130             if (setterMethod == null) {
 131                 final Class<?> type = getterMethod.getReturnType();
 132                 if ((setterName != null) && !setterName.isEmpty()) {
 133                     setterMethod = beanClass.getMethod(setterName, type);
 134                 } else {
 135                     setterMethod = beanClass.getMethod(SET_PREFIX + capitalizedName, type);
 136                 }
 137             }
 138             descriptor = new PropertyDescriptor(propertyName, beanClass, getterMethod, setterMethod);
 139         }
 140         return descriptor;
 141     }
 142 
 143 }