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1
24 package org.riotfamily.components.context;
25
26 import java.util.Collections  ;
27 import java.util.Enumeration ;
28 import java.util.HashMap ;
29 import java.util.HashSet ;
30 import java.util.Iterator ;
31 import java.util.Map ;
32
33 import javax.servlet.http.HttpServletRequest ;
34 import javax.servlet.http.HttpServletRequestWrapper ;
35
36 import org.riotfamily.common.collection.IteratorEnumeration;
37 import org.springframework.util.Assert;
38
39 public class PartialPageRequest extends HttpServletRequestWrapper {
40
41 private static final String CONTEXT_KEY =
42 PartialPageRequest.class.getName() + ".contextKey";
43
44 private PageRequestContext context;
45
46 private HashMap attributes = new HashMap ();
47
48 public PartialPageRequest(HttpServletRequest request,
49 PageRequestContext context) {
50
51 super(request);
52 this.context = context;
53 }
54
55 public String getMethod() {
56 return context.getMethod();
57 }
58
59 public String getPathInfo() {
60 return context.getPathInfo();
61 }
62
63 public String getServletPath() {
64 return context.getServletPath();
65 }
66
67 public String getQueryString() {
68 return context.getQueryString();
69 }
70
71 public String getRequestURI() {
72 return context.getRequestURI();
73 }
74
75 public StringBuffer getRequestURL() {
76 StringBuffer url = new StringBuffer (getScheme());
77 url.append("://").append(getServerName()).append(':').append(getServerPort());
78 url.append(getRequestURI());
79 return url;
80 }
81
82 public String getPathTranslated() {
83 return (getPathInfo() != null ? getRealPath(getPathInfo()) : null);
84 }
85
86 public String getParameter(String name) {
87 Assert.notNull(name, "Parameter name must not be null");
88 String [] arr = (String []) getParameterMap().get(name);
89 return (arr != null && arr.length > 0 ? arr[0] : null);
90 }
91
92 public Enumeration getParameterNames() {
93 return Collections.enumeration(getParameterMap().keySet());
94 }
95
96 public String [] getParameterValues(String name) {
97 Assert.notNull(name, "Parameter name must not be null");
98 return (String []) getParameterMap().get(name);
99 }
100
101 public Map getParameterMap() {
102 HashMap params = new HashMap ();
103 params.putAll(context.getParameters());
104 params.putAll(super.getParameterMap());
105 return params;
106 }
107
108 public Object getAttribute(String name) {
109 if (name.equals(CONTEXT_KEY)) {
110 return context.getKey();
111 }
112 if (name.startsWith("javax.servlet.")) {
113 return super.getAttribute(name);
114 }
115 if (attributes.containsKey(name)) {
116 return attributes.get(name);
117 }
118 return context.getAttributes().get(name);
119 }
120
121 public Enumeration getAttributeNames() {
122 HashSet names = new HashSet ();
123 names.addAll(context.getAttributes().keySet());
124 Iterator it = attributes.entrySet().iterator();
125 while (it.hasNext()) {
126 Map.Entry attribute = (Map.Entry ) it.next();
127 if (attribute.getValue() != null) {
128 names.add(attribute.getKey());
129 }
130 else {
131 names.remove(attribute.getKey());
134 }
135 }
136 return new IteratorEnumeration(names.iterator());
137 }
138
139 public void setAttribute(String name, Object value) {
140 Assert.notNull(name, "Attribute name must not be null");
141 attributes.put(name, value);
142 }
143
144 public void removeAttribute(String name) {
145 Assert.notNull(name, "Attribute name must not be null");
146 attributes.put(name, null);
149 }
150
151 public static boolean isWrapped(HttpServletRequest request) {
152 return request.getAttribute(CONTEXT_KEY) != null;
153 }
154
155 public static boolean isWrapped(HttpServletRequest request,
156 Object contextKey) {
157
158 return contextKey.equals(request.getAttribute(CONTEXT_KEY));
159 }
160
161 } |
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