Java > Open Source Codes > org > netbeans > modules > j2ee > dd > impl > common > CommonDDAccess


1 /*
2  * The contents of this file are subject to the terms of the Common Development
3  * and Distribution License (the License). You may not use this file except in
4  * compliance with the License.
5  *
6  * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7  * or http://www.netbeans.org/cddl.txt.
8  *
9  * When distributing Covered Code, include this CDDL Header Notice in each file
10  * and include the License file at http://www.netbeans.org/cddl.txt.
11  * If applicable, add the following below the CDDL Header, with the fields
12  * enclosed by brackets [] replaced by your own identifying information:
13  * "Portions Copyrighted [year] [name of copyright owner]"
14  *
15  * The Original Software is NetBeans. The Initial Developer of the Original
16  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19
20 /**
21  * Methods for accessing schema2beans objects in a bean-independent way.
22  *
23  * @author Milan Kuchtiak
24  */
25 package org.netbeans.modules.j2ee.dd.impl.common;
26
27 import java.lang.reflect.*;
28 import java.util.Set ;
29 import java.util.HashSet ;
30 import org.netbeans.modules.j2ee.dd.api.web.WebApp;
31 import org.openide.util.NbBundle;
32 import org.netbeans.modules.schema2beans.BaseBean;
33 import org.netbeans.modules.j2ee.dd.api.common.CommonDDBean;
34
35 /**
36  * Methods for accessing schema2beans objects in bean-independent and version-independent way.
37  *
38  * @author Milan Kuchtiak
39  */
40
41 public class CommonDDAccess {
42
43     public static final String DOT = "."; //NOI18N
44
45     public static final String COMMON_API = "org.netbeans.modules.j2ee.dd.api.common."; //NOI18N
46
47     public static final String SERVLET_2_3 = "2_3"; //NOI18N
48 public static final String SERVLET_2_4 = "2_4"; //NOI18N
49 public static final String WEB_API = "org.netbeans.modules.j2ee.dd.api.web."; //NOI18N
50 public static final String WEB_PACKAGE_PREFIX = "org.netbeans.modules.j2ee.dd.impl.web.model_"; //NOI18N
51
52     public static final String APP_1_3 = "1_3"; //NOI18N
53 public static final String APP_1_4 = "1_4"; //NOI18N
54 public static final String APP_API = "org.netbeans.modules.j2ee.dd.api.application."; //NOI18N
55 public static final String APP_PACKAGE_PREFIX = "org.netbeans.modules.j2ee.dd.impl.application.model_"; //NOI18N
56
57     public static final String EJB_2_0 = "2_0"; //NOI18N
58 public static final String EJB_2_1 = "2_1"; //NOI18N
59 public static final String EJB_1_1 = "1_1"; //NOI18N
60 public static final String EJB_API = "org.netbeans.modules.j2ee.dd.api.ejb."; //NOI18N
61 public static final String EJB_PACKAGE_PREFIX = "org.netbeans.modules.j2ee.dd.impl.ejb.model_"; //NOI18N
62
63     private static Set COMMON_BEANS = new HashSet ();
64     static {
65         COMMON_BEANS.add("Icon"); //NOI18N
66 COMMON_BEANS.add("InitParam"); //NOI18N
67 COMMON_BEANS.add("EnvEntry"); //NOI18N
68 COMMON_BEANS.add("EjbRef"); //NOI18N
69 COMMON_BEANS.add("EjbLocalRef"); //NOI18N
70 COMMON_BEANS.add("ResourceRef"); //NOI18N
71 COMMON_BEANS.add("ResourceEnvRef"); //NOI18N
72 COMMON_BEANS.add("ServiceRef"); //NOI18N
73 COMMON_BEANS.add("Handler"); //NOI18N
74 COMMON_BEANS.add("PortComponentRef"); //NOI18N
75 COMMON_BEANS.add("MessageDestination"); //NOI18N
76 COMMON_BEANS.add("MessageDestinationRef"); //NOI18N
77 COMMON_BEANS.add("SecurityRole"); //NOI18N
78 COMMON_BEANS.add("SecurityRoleRef"); //NOI18N
79 }
80     
81     /**
82      * Return a new instance of the specified type
83      *
84      * @param parent parent bean
85      * @param beanName which bean to create
86      * @param pkgName implementation package name
87      * @return BaseBean object
88      */
89
90    public static BaseBean newBean(CommonDDBean parent, String beanName, String pkgName) throws ClassNotFoundException {
91         beanName = getImplementationBeanName(parent, beanName, pkgName);
92         try {
93         Class beanClass = Class.forName(
94                 pkgName
95                                 + DOT
96                 + beanName);
97         return (BaseBean) beanClass.newInstance();
98
99     } catch (Exception e) {
100             if (e instanceof ClassNotFoundException )
101                 throw (ClassNotFoundException )e;
102             else {
103                 // This is a programming error.
104 e.printStackTrace();
105                 throw new RuntimeException (
106                     NbBundle.getMessage(CommonDDAccess.class,
107                         "MSG_COMMONDDACCESS_ERROR", "newBean",
108                         ", package = " + pkgName + ", beanName = " + beanName, e+ ": " +e.getMessage()));
109             }
110     }
111    }
112     
113        
114    public static void addBean(CommonDDBean parent, CommonDDBean child, String beanName, String pkgName) {
115     beanName = getImplementationBeanName(parent, beanName, pkgName);
116         String apiPrefix = getAPIPrefix(beanName, pkgName);
117     try {
118             Class p = parent.getClass();
119             Class ch = Class.forName(apiPrefix + beanName); //NOI18N
120 Method setter=null;
121             try {
122                 setter = p.getMethod("set" + beanName, new Class []{ch}); //NOI18N
123 setter.invoke(parent, new Object []{child});
124             } catch (NoSuchMethodException ex) {
125             }
126             if (setter==null) {
127                 setter = p.getMethod("add" + getNameForMethod(parent, beanName), new Class []{ch}); //NOI18N
128 setter.invoke(parent, new Object []{child});
129             }
130     } catch (Exception e) {
131             // This is a programming error.
132 e.printStackTrace();
133             throw new RuntimeException (
134                 NbBundle.getMessage(CommonDDAccess.class,
135                     "MSG_COMMONDDACCESS_ERROR", "addBean",
136                     ", package = " + pkgName + ", beanName = " + beanName, e+ ": " +e.getMessage()));
137     }
138     }
139     
140    
141    /**
142      * Handle special cases of version differences
143      */
144     private static String getImplementationBeanName (CommonDDBean parent, String beanName, String pkgName) {
145     if (pkgName.equals(WEB_PACKAGE_PREFIX + SERVLET_2_3)) {
146             if ("InitParam".equals(beanName) && parent instanceof WebApp) return "ContextParam"; //NOI18N
147 else return beanName;
148         } else if (beanName.equals("Session") || beanName.equals("Entity") || beanName.equals("MessageDriven")) { //NOI18N
149 return beanName + "Bean"; //NOI18N
150 } else
151             return beanName;
152     }
153     
154     private static String getAPIPrefix(String beanName, String pkgName){
155         if (COMMON_BEANS.contains(beanName))
156             return COMMON_API;
157         if (pkgName.startsWith(EJB_PACKAGE_PREFIX))
158             return EJB_API;
159         else if (pkgName.startsWith(WEB_PACKAGE_PREFIX))
160             return WEB_API;
161         else if (pkgName.startsWith(APP_PACKAGE_PREFIX))
162             return APP_API;
163         assert false : "Invalid package prefix:" + pkgName;
164         return ""; //NOI18N
165 }
166     
167     /**
168      * Get a BaseBean object from parent BaseBean
169      *
170      * @param parent parent BaseBean
171      * @param beanProperty name of child's BaseBean object e.g. "Servlet"
172      * @param nameProperty name of property e.g. ServletName
173      * @param value e.g. "ControllerServlet"
174      */
175     public static BaseBean findBeanByName(BaseBean parent, String beanProperty, String nameProperty, String value) {
176     Class c = parent.getClass();
177     Method getter;
178     Object result;
179     try {
180         getter = c.getMethod("get" + getNameForMethod((CommonDDBean)parent,beanProperty), null); //NOI18N
181 result = getter.invoke(parent, null);
182         if (result == null) {
183         return null;
184         } else if (result instanceof BaseBean) {
185         return null;
186         } else {
187         BaseBean[] beans = (BaseBean[]) result;
188                 for (int i=0;i<beans.length;i++) {
189                     Class c1 = beans[i].getClass();
190                     Method getter1;
191                     Object result1;
192                     getter1 = c1.getMethod("get" + nameProperty, null); //NOI18N
193 result1 = getter1.invoke(beans[i], null);
194                     if (result1 instanceof String ) {
195                         if (value.equals((String )result1)) {
196                             return beans[i];
197                         }
198                     }
199                 }
200                 return null;
201         }
202     } catch (Exception e) {
203         // This is a programming error
204 e.printStackTrace();
205         throw new RuntimeException (
206         NbBundle.getMessage(CommonDDAccess.class,
207             "MSG_COMMONDDACCESS_ERROR", "getBeanByName",
208             "parent = " + parent + ", beanProperty = " + beanProperty
209                     + ", nameProperty = " + nameProperty
210                     + ", value = " + value,
211             e+ ": " +e.getMessage()));
212     }
213     }
214
215     /**
216      * Handle special cases of version differences
217      */
218     private static String getNameForMethod (CommonDDBean parent, String beanName) {
219
220         if ("InitParam".equals(beanName) && parent instanceof WebApp) return "ContextParam"; //NOI18N
221 else if ("ServiceRefHandler".equals(beanName)) return "Handler"; //NOI18N
222 else {
223             return beanName;
224     }
225     }
226 }
227

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