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1
21
22 package com.jaspersoft.jasperserver.war.common;
23
24 import java.io.InputStream  ;
25 import javax.xml.parsers.*;
26 import org.w3c.dom.*;
27 import java.util.*;
28
29 import org.apache.commons.logging.Log;
30 import org.apache.commons.logging.LogFactory;
31
32
35
36 public class SiteMenu {
37
38 private static final Log log = LogFactory
39 .getLog(SiteMenu.class);
40
41 private final String URL_ATTR = "url";
42 private final String SERVLETPARAMS_ATTR = "servletParams";
43 private final String NAME_ATTR = "name";
44 private final String MENU_ITEM_NODE_NAME = "menu-item";
45 private final String SUB_ITEMS_NODE_NAME = "sub-items";
46 private final String ROLES_NODE_NAME = "roles";
47 private final String ROLE_NODE_NAME = "role";
48 private final String MENU_XML_URI = "/JI-menu.xml";
49 private static SiteMenu theInstance;
50
51 public static SiteMenu instance() {
52 if (theInstance == null) {
53 theInstance = new SiteMenu();
54 }
55 return theInstance;
56 }
57
58 private MenuItem mMenu = null;
59 public MenuItem getMenu() throws Exception {
60 if (mMenu == null) {
61 mMenu = parse(MENU_XML_URI);
62 }
63 return mMenu;
64 }
65
66 protected MenuItem parse(String menuXmlUri) throws Exception {
67 MenuItem result = null;
68 try {
69 InputStream siteXml = this.getClass().getResourceAsStream(menuXmlUri);
70 DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
71 DocumentBuilder domBuilder = domFactory.newDocumentBuilder();
72 Document menuDoc = domBuilder.parse(siteXml);
73 result = parseMenuItem(menuDoc.getDocumentElement());
74 } catch (Exception e) {
75 log.error(e);
76 throw(e);
77 }
78 return result;
79 }
80
81 public void printNode( org.w3c.dom.Node n, int indent ) {
83 for (int i=0; i<indent; i++) {
84 System.out.print(" ");
85 }
86 System.out.println(n);
87 if (n.hasChildNodes()) {
88 for (int j=0; j<n.getChildNodes().getLength(); j++) {
89 printNode( n.getChildNodes().item(j), indent+2 );
90 }
91 }
92 }
93
94 protected MenuItem parseMenuItem( Element itemNode ) {
95 MenuItem menuItem = new MenuItem();
96 menuItem.name = itemNode.getAttribute(NAME_ATTR);
97 if (itemNode.hasAttribute(URL_ATTR)) {
98 menuItem.url = itemNode.getAttribute(URL_ATTR);
99 }
100 if (itemNode.hasAttribute(SERVLETPARAMS_ATTR)) {
101 menuItem.servletParams = itemNode.getAttribute(SERVLETPARAMS_ATTR);
102 }
103 List subItems = new ArrayList();
104 List roles = new ArrayList();
105
106 if (itemNode.hasChildNodes()) {
107 for (int i=0; i<itemNode.getChildNodes().getLength(); i++) {
108 Node child = itemNode.getChildNodes().item(i);
109 if (SUB_ITEMS_NODE_NAME.equals(child.getNodeName())) {
110 for (int j=0; j<child.getChildNodes().getLength(); j++) {
111 Node menuChild = child.getChildNodes().item(j);
112 if (MENU_ITEM_NODE_NAME.equals(menuChild.getNodeName())) {
113 subItems.add(parseMenuItem( (Element)menuChild ));
114 }
115 }
116 }
117 if (ROLES_NODE_NAME.equals(child.getNodeName())) {
118 for (int k=0; k<child.getChildNodes().getLength(); k++) {
119 Node roleChild = child.getChildNodes().item(k);
120 if (ROLE_NODE_NAME.equals(roleChild.getNodeName())) {
121 roles.add(roleChild.getFirstChild().getNodeValue());
122 }
123 }
124 }
125 }
126 }
127 menuItem.subItems = (MenuItem[])subItems.toArray(new MenuItem[subItems.size()]);
128 menuItem.roles = (String [])roles.toArray(new String [roles.size()]);
129 return menuItem;
130 }
131
132 public static class MenuItem {
133 String name;
134 public String getName() { return name; }
135
136 String url;
137 public String getUrl() { return url; }
138
139 String servletParams;
140 public String getServletParams() { return servletParams; }
141
142 MenuItem[] subItems;
143 public MenuItem[] getSubItems() { return subItems; }
144 public boolean getHasSubItems() {
145 return (subItems != null && subItems.length > 0);
146 }
147
148
149 String [] roles;
150 public String [] getRoles() { return roles; }
151 public String getRolesStr() {
154 StringBuffer b = new StringBuffer ();
155 for (int i=0; i<roles.length; i++) {
156 b.append(roles[i]);
157 if (i<roles.length-1) {
158 b.append(",");
159 }
160 }
161 return b.toString();
162 }
163
164 public String toString() {
165 StringBuffer buff = new StringBuffer ();
166 buff.append("MenuItem( name=").append(name);
167 buff.append(" url=").append(url);
168 buff.append(" servletParams=").append(servletParams);
169 buff.append(" roles=");
170 for (int i=0; i<roles.length; i++) {
171 buff.append(roles[i]);
172 if (i<(roles.length-1)) {
173 buff.append(",");
174 }
175 }
176 buff.append(" sub-items=");
177 for (int j=0; j<subItems.length; j++) {
178 buff.append(subItems[j].toString());
179 if (j<(subItems.length-1)) {
180 buff.append(",");
181 }
182 }
183 buff.append(" )");
184 return buff.toString();
185 }
186
187 }
188
189 } |
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