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1
13 package com.tonbeller.wcf.component;
14
15 import java.util.Collections  ;
16 import java.util.HashMap ;
17 import java.util.Map ;
18
19 import javax.servlet.ServletContext ;
20 import javax.servlet.http.HttpServletRequest ;
21 import javax.servlet.http.HttpSession ;
22
23 import com.tonbeller.wcf.controller.RequestContext;
24
25
33 public class RendererParameters {
34 private static final String WEBKEY = RendererParameters.class.getName();
35
36 public static final String MODE = "mode";
37 public static final String EXCEL = "excel";
38 public static final String PRINT = "print";
39
40
41 public static boolean isRenderActions(RequestContext context) {
42 return isRenderActions(context.getRequest());
43 }
44
45 public static boolean isExcelMode(RequestContext context) {
46 return isExcelMode(context.getRequest());
47 }
48
49 public static boolean isPrintMode(RequestContext context) {
50 return isPrintMode(context.getRequest());
51 }
52
53
54 public static boolean isRenderActions(HttpServletRequest request) {
55 return getParameterMap(request).get(MODE) == null;
56 }
57
58 public static boolean isExcelMode(HttpServletRequest request) {
59 return EXCEL.equals(getParameterMap(request).get(MODE));
60 }
61
62 public static boolean isPrintMode(HttpServletRequest request) {
63 return PRINT.equals(getParameterMap(request).get(MODE));
64 }
65
66 public static void setParameter(HttpServletRequest req, String name, Object value, String scope) {
67 Map map = getMap(req, scope, true);
68 map.put(name, value);
69 }
70
71 public static void removeParameter(HttpServletRequest req, String name, Object value, String scope) {
72 Map map = getMap(req, scope, false);
73 if (map != null)
74 map.remove(name);
75 }
76
77 private static Map getMap(HttpServletRequest req, String scope, boolean create) {
78 if ("request".equals(scope))
79 return getRequestMap(req, create);
80 if ("session".equals(scope))
81 return getSessionMap(req, create);
82 if ("application".equals(scope))
83 return getContextMap(req, create);
84 throw new IllegalArgumentException ("scope must be one of 'request', 'session', 'application'");
85
86 }
87
88 private static Map getRequestMap(HttpServletRequest req, boolean create) {
89 Map map = (Map ) req.getAttribute(WEBKEY);
90 if (map != null || !create)
91 return map;
92 map = new HashMap ();
93 req.setAttribute(WEBKEY, map);
94 return map;
95 }
96
97 private static Map getSessionMap(HttpServletRequest req, boolean create) {
98 HttpSession session = req.getSession(true);
99 Map map = (Map ) session.getAttribute(WEBKEY);
100 if (map != null || !create)
101 return map;
102 map = new HashMap ();
103 session.setAttribute(WEBKEY, map);
104 return map;
105 }
106
107 private static Map getContextMap(HttpServletRequest req, boolean create) {
108 ServletContext context = req.getSession(true).getServletContext();
109 Map map = (Map ) context.getAttribute(WEBKEY);
110 if (map != null || !create)
111 return map;
112 map = new HashMap ();
113 context.setAttribute(WEBKEY, map);
114 return map;
115 }
116
117
120 public static Map getParameterMap(HttpServletRequest request) {
121 HttpSession session = request.getSession(true);
122 ServletContext context = session.getServletContext();
123
124 Map map = new HashMap ();
125 Map m = (Map ) context.getAttribute(WEBKEY);
126 if (m != null)
127 map.putAll(m);
128 m = (Map ) session.getAttribute(WEBKEY);
129 if (m != null)
130 map.putAll(m);
131 m = (Map ) request.getAttribute(WEBKEY);
132 if (m != null)
133 map.putAll(m);
134 return Collections.unmodifiableMap(map);
135 }
136
137 } |
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