1 /*
   2  * Copyright (c) 2011, 2018, 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 import com.sun.javafx.reflect.ReflectUtil;
  30 
  31 /**
  32  */
  33 public class JavaBeanPropertyBuilderHelper {
  34 
  35     private static final String IS_PREFIX = "is";
  36     private static final String GET_PREFIX = "get";
  37     private static final String SET_PREFIX = "set";
  38 
  39     private String propertyName;
  40     private Class<?> beanClass;
  41     private Object bean;
  42     private String getterName;
  43     private String setterName;
  44     private Method getter;
  45     private Method setter;
  46     private PropertyDescriptor descriptor;
  47 
  48     public void name(String propertyName) {
  49         if ((propertyName == null)? this.propertyName != null : !propertyName.equals(this.propertyName)) {
  50             this.propertyName = propertyName;
  51             this.descriptor = null;
  52         }
  53     }
  54 
  55     public void beanClass(Class<?> beanClass) {
  56         if ((beanClass == null)? this.beanClass != null : !beanClass.equals(this.beanClass)) {
  57             ReflectUtil.checkPackageAccess(beanClass);
  58             this.beanClass = beanClass;
  59             this.descriptor = null;
  60         }
  61     }
  62 
  63     public void bean(Object bean) {
  64         this.bean = bean;
  65         if (bean != null) {
  66             Class<?> newClass = bean.getClass();
  67             if ((beanClass == null) || !beanClass.isAssignableFrom(newClass)) {
  68                 ReflectUtil.checkPackageAccess(newClass);
  69                 this.beanClass = newClass;
  70                 this.descriptor = null;
  71             }
  72         }
  73     }
  74 
  75     public Object getBean() {
  76         return bean;
  77     }
  78 
  79     public void getterName(String getterName) {
  80         if ((getterName == null)? this.getterName != null : !getterName.equals(this.getterName)) {
  81             this.getterName = getterName;
  82             this.descriptor = null;
  83         }
  84     }
  85 
  86     public void setterName(String setterName) {
  87         if ((setterName == null)? this.setterName != null : !setterName.equals(this.setterName)) {
  88             this.setterName = setterName;
  89             this.descriptor = null;
  90         }
  91     }
  92 
  93     public void getter(Method getter) {
  94         if ((getter == null)? this.getter != null : !getter.equals(this.getter)) {
  95             this.getter = getter;
  96             this.descriptor = null;
  97         }
  98     }
  99 
 100     public void setter(Method setter) {
 101         if ((setter == null)? this.setter != null : !setter.equals(this.setter)) {
 102             this.setter = setter;
 103             this.descriptor = null;
 104         }
 105     }
 106 
 107     public PropertyDescriptor getDescriptor() throws NoSuchMethodException {
 108         if (descriptor == null) {
 109             if (propertyName == null) {
 110                 throw new NullPointerException("Property name has to be specified");
 111             }
 112             if (propertyName.isEmpty()) {
 113                 throw new IllegalArgumentException("Property name cannot be empty");
 114             }
 115             final String capitalizedName = ReadOnlyPropertyDescriptor.capitalizedName(propertyName);
 116             Method getterMethod = getter;
 117             if (getterMethod == null) {
 118                 if ((getterName != null) && !getterName.isEmpty()) {
 119                     getterMethod = beanClass.getMethod(getterName);
 120                 } else {
 121                     try {
 122                         getterMethod = beanClass.getMethod(IS_PREFIX + capitalizedName);
 123                     } catch (NoSuchMethodException e) {
 124                         getterMethod = beanClass.getMethod(GET_PREFIX + capitalizedName);
 125                     }
 126                 }
 127             }
 128             Method setterMethod = setter;
 129             if (setterMethod == null) {
 130                 final Class<?> type = getterMethod.getReturnType();
 131                 if ((setterName != null) && !setterName.isEmpty()) {
 132                     setterMethod = beanClass.getMethod(setterName, type);
 133                 } else {
 134                     setterMethod = beanClass.getMethod(SET_PREFIX + capitalizedName, type);
 135                 }
 136             }
 137             descriptor = new PropertyDescriptor(propertyName, beanClass, getterMethod, setterMethod);
 138         }
 139         return descriptor;
 140     }
 141 
 142 }