| SamEldin.com\XML_ParserProject\src\java\xml_dom_generator\MyFirstBeanDOM_XML_Converter.java |
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5
6
7 package xml_dom_generator;
8
9 import java.io.*;
10 import javax.xml.parsers.*;
11 import javax.xml.transform.*;
12 import javax.xml.transform.dom.*;
13 import javax.xml.transform.stream.*;
14 import org.w3c.dom.*;
15 import java.io.IOException;
16 import javax.xml.parsers.DocumentBuilder;
17 import javax.xml.parsers.DocumentBuilderFactory;
18 import javax.xml.parsers.FactoryConfigurationError;
19 import javax.xml.parsers.ParserConfigurationException;
20 import org.w3c.dom.Document;
21 import org.xml.sax.SAXException;
22
23 import java.lang.reflect.*;
24 import java.lang.Class;
25 import java.math.BigDecimal;
26 import java.math.BigInteger;
27 import java.util.Calendar;
28
29 import constants.Constants;
30
31 import sample_data_objects.*;
32
33
34
35 @author
36
37 public class MyFirstBeanDOM_XML_Converter
38 {
39
40 public MyFirstBeanDOM_XML_Converter()
41 {
42 MyFirstBean testMyFirstBean = new MyFirstBean();
43
44 try
45 {
46 String root = "Root";
47 DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
48 DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
49 Document document = documentBuilder.newDocument();
50 Element rootElement = document.createElement(root);
51 document.appendChild(rootElement);
52
53 Class testMyFirstBeanClass = testMyFirstBean.getClass();
54 if(null == testMyFirstBeanClass)
55 {
56 System.out.println("Error: Class testMyFirstBeanClass = testMyFirstBean.getClass(); is null");
57 return;
58 }
59 if(null == document)
60 {
61 System.out.println("Error: document is null");
62 return;
63 }
64 if(null == rootElement)
65 {
66 System.out.println("Error: rootElement is null");
67 return;
68 }
69
70 String dataObjectTagName = Constants.DATA_OBJECT_TAG_NAME;
71 String dataObjectTagLabel = Constants.CLASS_NAME_LABEL;
72 String dataObjectName = testMyFirstBeanClass.getName();
73 Element classElement = document.createElement(dataObjectTagName);
74 classElement.setAttribute(dataObjectTagLabel, dataObjectName);
75 rootElement.appendChild(classElement);
76
77 Class returnTypeClass = null;
78 String classToString = "";
79
80 Method [] localClassMethods = null;
81 localClassMethods = testMyFirstBeanClass.getDeclaredMethods();
82 for(int count = 0; count < localClassMethods.length; count++)
83 {
84 try
85 {
86 String methodName = localClassMethods[count].getName();
87 if(methodName.indexOf("get", 0) < 0)
88 continue;
89 returnTypeClass = localClassMethods[count].getReturnType();
90
91 boolean fieldFoundFlag = false;
92 String fieldTagName = Constants.FIELD_TAG_NAME;
93 String fieldLabel = Constants.FIELD_LABEL;
94 String fieldName = methodName.substring(3);
95 int returnIndex = 0;
96 String returnTypeTagName = Constants.RETURN_TYPE_TAG_NAME;
97 String returnLabel = "";
98 String returnValue = "";
99
100 System.out.println("getReturnType() .getName().toString(); = ");
101
102 String forDebugPoint = localClassMethods[count].getReturnType().getName().toString();
103
104 if (localClassMethods[count].getReturnType() == int.class)
105 {
106 fieldFoundFlag = true;
107 returnIndex = Constants.INT_TYPE_INDEX;
108 returnLabel = Constants.INT_TYPE_NAME;
109 returnValue = "" + localClassMethods[count].invoke(testMyFirstBean);
110 }
111 else if(localClassMethods[count].getReturnType() == double[].class)
112 {
113 fieldFoundFlag = true;
114 returnIndex = Constants.ARRAY_DOUBLE_TYPE_INDEX;
115 returnLabel = Constants.ARRAY_DOUBLE_TYPE_NAME;
116 Object tempPointer = localClassMethods[count].invoke(testMyFirstBean);
117 if(tempPointer != null)
118 {
119 double [] doubleArrys = (double [])tempPointer;
120 returnValue = "" + doubleArrys[0];
121 for(int index = 0; index < doubleArrys.length; index++)
122 returnValue += "," + doubleArrys[0];
123 }
124 }
125 else if (localClassMethods[count].getReturnType() == String.class)
126 {
127 fieldFoundFlag = true;
128 returnIndex = Constants.STRING_TYPE_INDEX;
129 returnLabel = Constants.STRING_TYPE_NAME;
130 returnValue = "" + localClassMethods[count].invoke(testMyFirstBean);
131 }
132 else
133 {
134 System.out.println("Else for No getReturnType()");
135 }
136
137 if (fieldFoundFlag)
138 {
139 Element fieldElement = document.createElement(fieldTagName);
140 fieldElement.setAttribute(fieldLabel, fieldName);
141 classElement.appendChild(fieldElement);
142
143 Element returnValueElement = document.createElement(returnTypeTagName);
144 returnValueElement.setAttribute(returnLabel, "" + returnIndex);
145 returnValueElement.appendChild(document.createTextNode(returnValue));
146 fieldElement.appendChild(returnValueElement);
147
148 }
149 else
150 {
151 System.out.println("Else for fieldFoundFlag");
152 }
153
154
155 }
156 catch(SecurityException mySecurityException)
157 {
158 mySecurityException.printStackTrace();
159 }
160 catch(IllegalArgumentException eIllegalArgumentException)
161 {
162 eIllegalArgumentException.printStackTrace();
163 }
164 catch(IllegalAccessException eIllegalAccessException)
165 {
166 eIllegalAccessException.printStackTrace();
167 }
168 catch(InvocationTargetException eInvocationTargetException)
169 {
170 eInvocationTargetException.printStackTrace();
171 }
172 }
173 TransformerFactory transformerFactoryHandler = TransformerFactory.newInstance();
174 Transformer transformerHandler = transformerFactoryHandler.newTransformer();
175 DOMSource dOMSourceHandler = new DOMSource(document);
176 File myXMLfile = new File(Constants.TEST_FOLDER_PATH + Constants.MY_FIRST_BEAN_XML_FILE_NAME);
177 StreamResult streamResultHandler = new StreamResult(myXMLfile);
178 transformerHandler.transform(dOMSourceHandler, streamResultHandler);
179
180 }
181 catch (FactoryConfigurationError eFactoryConfigurationError)
182 {
183 eFactoryConfigurationError.printStackTrace();
184 }
185 catch (ParserConfigurationException eParserConfigurationException)
186 {
187 eParserConfigurationException.printStackTrace();
188 }
189 catch(Exception e)
190 {
191 e.printStackTrace();
192 }
193
194 }
195
196
197
198 public static void main (String[] args)
199 {
200 MyFirstBeanDOM_XML_Converter myFirstBeanDOM_XML_Converter = new MyFirstBeanDOM_XML_Converter();
201 }
202 }
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204