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17 package org.apache.geronimo.deployment.service;
18
19 import java.beans.BeanInfo  ;
20 import java.beans.IntrospectionException ;
21 import java.beans.Introspector ;
22 import java.beans.PropertyDescriptor ;
23 import java.beans.PropertyEditor ;
24 import java.lang.reflect.Method ;
25
26 import org.apache.geronimo.common.DeploymentException;
27 import org.apache.geronimo.common.propertyeditor.PropertyEditors;
28 import org.apache.geronimo.deployment.javabean.xbeans.JavabeanType;
29 import org.apache.geronimo.deployment.javabean.xbeans.PropertyType;
30 import org.apache.geronimo.deployment.javabean.xbeans.BeanPropertyType;
31 import org.apache.geronimo.gbean.GBeanInfo;
32 import org.apache.geronimo.gbean.GBeanInfoBuilder;
33 import org.apache.xmlbeans.XmlObject;
34
35
38 public class JavaBeanXmlAttributeBuilder implements XmlAttributeBuilder {
39
40 private static final String NAMESPACE = "http://geronimo.apache.org/xml/ns/deployment/javabean-1.0";
41
42 public String getNamespace() {
43 return NAMESPACE;
44 }
45
46 public Object getValue(XmlObject xmlObject, String type, ClassLoader cl) throws DeploymentException {
47 JavabeanType javabean = (JavabeanType) xmlObject.copy().changeType(JavabeanType.type);
48 return getValue(javabean, type, cl);
49 }
50
51 private Object getValue(JavabeanType javabean, String className, ClassLoader cl) throws DeploymentException {
52 Class clazz = null;
53 try {
54 clazz = cl.loadClass(className);
55 } catch (ClassNotFoundException e) {
56 throw new DeploymentException("Could not load alleged javabean class " + className, e);
57 }
58 Object instance = null;
59 try {
60 instance = clazz.newInstance();
61 } catch (Exception e) {
62 throw new DeploymentException("Could not create java bean instance", e);
63 }
64 PropertyDescriptor [] propertyDescriptors;
65 try {
66 BeanInfo beanInfo = Introspector.getBeanInfo(clazz);
67 propertyDescriptors = beanInfo.getPropertyDescriptors();
68 } catch (IntrospectionException e) {
69 throw new DeploymentException("Could not analyze java bean class", e);
70 }
71
72 PropertyType[] properties = javabean.getPropertyArray();
73 for (int i = 0; i < properties.length; i++) {
74 PropertyType property = properties[i];
75 String propertyName = Introspector.decapitalize(property.getName());
76 String propertyString = property.getStringValue().trim();
77 for (int j = 0; j < propertyDescriptors.length; j++) {
78 PropertyDescriptor propertyDescriptor = propertyDescriptors[j];
79 if (propertyName.equals(propertyDescriptor.getName())) {
80 String type = propertyDescriptor.getPropertyType().getName();
81 PropertyEditor propertyEditor = null;
82 try {
83 propertyEditor = PropertyEditors.findEditor(type, cl);
84 } catch (ClassNotFoundException e) {
85 throw new DeploymentException("Could not load editor for type " + type, e);
86 }
87 if (propertyEditor == null) {
88 throw new DeploymentException("Unable to find PropertyEditor for " + type);
89 }
90 propertyEditor.setAsText(propertyString);
91 Object value = propertyEditor.getValue();
92 Method m = propertyDescriptor.getWriteMethod();
93 try {
94 m.invoke(instance, new Object [] {value});
95 } catch (Exception e) {
96 throw new DeploymentException("Could not set property value for property named " + propertyName, e);
97 }
98 break;
99 }
100 }
101 }
102
103 BeanPropertyType[] beanProperties = javabean.getBeanPropertyArray();
104 for (int i = 0; i < beanProperties.length; i++) {
105 BeanPropertyType beanProperty = beanProperties[i];
106 String propertyName = Introspector.decapitalize(beanProperty.getName().trim());
107 JavabeanType innerBean = beanProperty.getJavabean();
108 for (int j = 0; j < propertyDescriptors.length; j++) {
109 PropertyDescriptor propertyDescriptor = propertyDescriptors[j];
110 if (propertyName.equals(propertyDescriptor.getName())) {
111 String propertyType = propertyDescriptor.getPropertyType().getName();
112 Object value = getValue(innerBean, propertyType, cl);
113 Method m = propertyDescriptor.getWriteMethod();
114 try {
115 m.invoke(instance, new Object [] {value});
116 } catch (Exception e) {
117 throw new DeploymentException("Could not set property value for property named " + propertyName, e);
118 }
119 break;
120 }
121 }
122 }
123 return instance;
124 }
125
126 public static final GBeanInfo GBEAN_INFO;
127
128 static {
129 GBeanInfoBuilder infoBuilder = GBeanInfoBuilder.createStatic(JavaBeanXmlAttributeBuilder.class, "XmlAttributeBuilder");
130 infoBuilder.addInterface(XmlAttributeBuilder.class);
131 GBEAN_INFO = infoBuilder.getBeanInfo();
132 }
133
134 public static GBeanInfo getGBeanInfo() {
135 return GBEAN_INFO;
136 }
137 }
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