1 /* 2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. 3 * All rights reserved. Use is subject to license terms. 4 * 5 * This file is available and licensed under the following license: 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * - Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * - Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the distribution. 16 * - Neither the name of Oracle Corporation nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 package com.oracle.javafx.scenebuilder.kit.metadata.util; 33 34 import java.beans.BeanInfo; 35 import java.beans.IntrospectionException; 36 import java.beans.Introspector; 37 import java.beans.PropertyDescriptor; 38 import java.lang.reflect.InvocationTargetException; 39 40 /** 41 * 42 */ 43 class BeanPropertyIntrospector { 44 45 private final Object object; 46 private final PropertyDescriptor[] propertyDescriptors; 47 48 public BeanPropertyIntrospector(Object object) { 49 assert object != null; 50 this.object = object; 51 try { 52 final BeanInfo beanInfo = Introspector.getBeanInfo(object.getClass()); 53 this.propertyDescriptors = beanInfo.getPropertyDescriptors(); 54 } catch(IntrospectionException x) { 55 throw new RuntimeException(x); 56 } 57 } 58 59 public Object getValue(String propertyName) { 60 final PropertyDescriptor d = findDescriptor(propertyName); 61 final Object result; 62 63 if (d != null) { 64 try { 65 result = d.getReadMethod().invoke(object); 66 } catch(InvocationTargetException|IllegalAccessException x) { 67 throw new RuntimeException(x); 68 } 69 } else { 70 throw new RuntimeException(propertyName + " not found"); //NOI18N 71 } 72 73 return result; 74 } 75 76 77 public void setValue(String propertyName, Object value) { 78 final PropertyDescriptor d = findDescriptor(propertyName); 79 80 if (d != null) { 81 try { 82 d.getWriteMethod().invoke(object, value); 83 } catch(InvocationTargetException|IllegalAccessException x) { 84 throw new RuntimeException(x); 85 } 86 } else { 87 throw new RuntimeException(propertyName + " not found"); //NOI18N 88 } 89 } 90 91 private PropertyDescriptor findDescriptor(String propertyName) { 92 assert propertyDescriptors != null; 93 int i = 0; 94 while ((i < propertyDescriptors.length) 95 && ! propertyDescriptors[i].getName().equals(propertyName)){ 96 i++; 97 } 98 99 return (i < propertyDescriptors.length) ? propertyDescriptors[i] : null; 100 } 101 }