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1 package org.ashkelon.pages;
2
3 import javax.servlet.*;
4 import javax.servlet.http.*;
5
6 import org.ashkelon.*;
7 import org.ashkelon.util.*;
8 import org.ashkelon.db.*;
9
10 import java.sql.*;
11 import java.util.*;
12
13
16 public abstract class Page
17 {
18 Logger log;
19 Connection conn;
20 HttpServletRequest request;
21 ServletContext app;
22 HttpSession session;
23
24 public static int FETCH_SIZE = 60;
25
26 public Page()
27 {
28 log = Logger.getInstance();
29 log.setPrefix("Page");
30 }
31
32 public Page(Connection conn, HttpServletRequest request)
33 {
34 this();
35 setConnection(conn);
36 setRequest(request);
37 session = request.getSession();
38 }
39
40
45 public abstract String  handleRequest() throws Exception ;
46
47 public void setConnection(Connection conn)
48 {
49 this.conn = conn;
50 }
51 public void setRequest(HttpServletRequest request)
52 {
53 this.request = request;
54 this.session = request.getSession();
55 }
56 public void setApplication(ServletContext context)
57 {
58 this.app = context;
59 }
60
61 protected void finalize() throws Throwable
62 {
63 DBMgr.getInstance().releaseConnection(conn);
64 conn = null;
65 request = null;
66 log.debug("page finalized");
67 log = null;
68 }
69
70
71 public static String printTree(TreeNode node, String pkgname)
72 {
73 Object o = node.getValue();
74 if (o==null) return "";
75 ClassType cls = null;
76 String name = "";
77 String indent = "";
78 int level = 0;
79 String cmd = "cls.main.do?cls_id=";
80 String parent = "";
81 String typename = "package";
82 String modifiers = "";
83 String descr;
84 boolean nohref = false;
85 if (o instanceof JPackage)
86 {
87 JPackage pkg = (JPackage) o;
88 name = pkg.getName();
89 descr = pkg.getSummaryDescription();
90 cmd = "pkg.main.do?pkg_id="+pkg.getId();
91 }
92 else
93 {
94 cls = (ClassType) o;
95 name = cls.getQualifiedName();
96 descr = cls.getSummaryDescription();
97 typename = cls.getClassTypeName();
98 modifiers = cls.getModifiers();
99 level = cls.getLevel();
100 indent = StringUtils.join(" ","",cls.getLevel()*3);
101 cmd += cls.getId();
102 parent = (level == 1) ? pkgname : cls.getSuperClassName();
103 if (cls.getId()==0)
104 {
105 nohref = true;
106 }
107 }
108
109 descr = HtmlUtils.cleanAttributeText(descr);
110
111 String output = indent + "<UL ID=\""+parent+".child\">\n";
112
113 String collapsible = node.isEmpty() ? "CLASS=\"leafnode\"" : "CLASS=\"collapsible\"";
114 output += indent + " <LI "+collapsible+" CHILD=\""+name+".child\">\n";
115 if (nohref) {
117 output += indent + " <SPAN CLASS=\""+typename+" "+modifiers+"\">" + name + "</SPAN>\n";
118 output += indent + " </LI>\n";
119 }
120 else
121 {
122 output += indent + " <A HREF=\""+cmd+"\"><SPAN CLASS=\""+typename+" "+modifiers+"\" TITLE=\""+descr+"\">" + name + "</SPAN></A>\n";
123 output += indent + " </LI>\n";
124 }
125
126 Map children = (Map) node.getChildren();
127 Collection values = children.values();
128 if (values != null)
129 {
130 Iterator itr = values.iterator();
131 TreeNode childNode;
132 while (itr.hasNext())
133 {
134 childNode = (TreeNode) itr.next();
135 if (childNode != null)
136 output += printTree(childNode, pkgname);
137 }
138 }
139
140 output += indent + "</UL>\n";
141 return output;
142 }
143
144 protected int position(ResultSet rset) throws SQLException
145 {
146 rset.last();
147 int totalResults = rset.getRow();
148 request.setAttribute("total-results", new Integer (totalResults));
149
150 int position = ServletUtils.getIntParam(request, "cursor-position");
151 if (position == 0)
152 rset.beforeFirst();
153 else
154 rset.absolute(position);
155
156 if (position + FETCH_SIZE < totalResults)
157 request.setAttribute("next-cursor-position", new Integer (position
158 + FETCH_SIZE));
159 if (position - FETCH_SIZE >= 0)
160 request.setAttribute("prev-cursor-position", new Integer (position
161 - FETCH_SIZE));
162
163 return position;
164 }
165
166
167
168 }
169
170 |
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