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1 package com.icesoft.faces.webapp.http.servlet;
2
3 import com.icesoft.faces.webapp.http.common.Request;
4 import com.icesoft.faces.webapp.http.common.Response;
5 import com.icesoft.faces.webapp.http.common.ResponseHandler;
6
7 import javax.servlet.http.Cookie  ;
8 import javax.servlet.http.HttpServletRequest ;
9 import javax.servlet.http.HttpServletResponse ;
10 import java.io.IOException ;
11 import java.io.InputStream ;
12 import java.io.OutputStream ;
13 import java.net.URI ;
14 import java.text.DateFormat ;
15 import java.text.ParseException ;
16 import java.text.SimpleDateFormat ;
17 import java.util.ArrayList ;
18 import java.util.Date ;
19 import java.util.Enumeration ;
20 import java.util.TimeZone ;
21
22 public class ServletRequestResponse implements Request, Response {
23 private final static DateFormat DATE_FORMAT = new SimpleDateFormat ("EEE, dd MMM yyyy HH:mm:ss zzz");
24
25 static {
26 DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("GMT"));
27 }
28
29 protected HttpServletRequest request;
30 protected HttpServletResponse response;
31
32 public ServletRequestResponse(HttpServletRequest request, HttpServletResponse response) {
33 this.request = request;
34 this.response = response;
35 }
36
37 public String getMethod() {
38 return request.getMethod();
39 }
40
41 public URI getURI() {
42 String query = request.getQueryString();
43 URI uri = URI.create(request.getRequestURL().toString());
44 return query == null ? uri : URI.create(uri + "?" + query);
45 }
46
47 public String getHeader(String name) {
48 return request.getHeader(name);
49 }
50
51 public String [] getHeaderAsStrings(String name) {
52 Enumeration e = request.getHeaders(name);
53 ArrayList values = new ArrayList ();
54 while (e.hasMoreElements()) values.add(e.nextElement());
55 return (String []) values.toArray(new String [values.size()]);
56 }
57
58 public Date getHeaderAsDate(String name) {
59 try {
60 return DATE_FORMAT.parse(request.getHeader(name));
61 } catch (ParseException e) {
62 throw new RuntimeException (e);
63 }
64 }
65
66 public int getHeaderAsInteger(String name) {
67 return Integer.parseInt(request.getHeader(name));
68 }
69
70 public boolean containsParameter(String name) {
71 return request.getParameter(name) != null;
72 }
73
74 public String getParameter(String name) {
75 checkExistenceOf(name);
76 return (String ) request.getParameter(name);
77 }
78
79 public String [] getParameterAsStrings(String name) {
80 checkExistenceOf(name);
81 return request.getParameterValues(name);
82 }
83
84 public int getParameterAsInteger(String name) {
85 return Integer.parseInt(getParameter(name));
86 }
87
88 public boolean getParameterAsBoolean(String name) {
89 return Boolean.valueOf(getParameter(name)).booleanValue();
90 }
91
92 public String getParameter(String name, String defaultValue) {
93 try {
94 return getParameter(name);
95 } catch (Exception e) {
96 return defaultValue;
97 }
98 }
99
100 public int getParameterAsInteger(String name, int defaultValue) {
101 try {
102 return getParameterAsInteger(name);
103 } catch (Exception e) {
104 return defaultValue;
105 }
106 }
107
108 public boolean getParameterAsBoolean(String name, boolean defaultValue) {
109 try {
110 return getParameterAsBoolean(name);
111 } catch (Exception e) {
112 return defaultValue;
113 }
114 }
115
116 public InputStream readBody() throws IOException {
117 return request.getInputStream();
118 }
119
120 public void readBodyInto(OutputStream out) throws IOException {
121 copy(readBody(), out);
122 }
123
124 public void respondWith(ResponseHandler handler) throws Exception {
125 handler.respond(this);
126 }
127
128 public void setStatus(int code) {
129 response.setStatus(code);
130 }
131
132 public void setHeader(String name, String value) {
133 if ("Content-Type".equals(name)) {
134 response.setContentType(value);
135 } else if ("Content-Length".equals(name)) {
136 response.setContentLength(Integer.parseInt(value));
137 } else {
138 response.setHeader(name, value);
139 }
140 }
141
142 public void setHeader(String name, String [] values) {
143 for (int i = 0; i < values.length; i++) {
144 response.addHeader(name, values[i]);
145 }
146 }
147
148 public void setHeader(String name, Date value) {
149 response.setDateHeader(name, value.getTime());
150 }
151
152 public void setHeader(String name, int value) {
153 response.setIntHeader(name, value);
154 }
155
156 public void addCookie(Cookie cookie) {
157 response.addCookie(cookie);
158 }
159
160 public OutputStream writeBody() throws IOException {
161 return response.getOutputStream();
162 }
163
164 public void writeBodyFrom(InputStream in) throws IOException {
165 copy(in, writeBody());
166 }
167
168 private static void copy(InputStream input, OutputStream output) throws IOException {
169 byte[] buf = new byte[4096];
170 int len = 0;
171 while ((len = input.read(buf)) > -1) output.write(buf, 0, len);
172 }
173
174 private void checkExistenceOf(String name) {
175 if (request.getParameter(name) == null)
176 throw new RuntimeException ("Query does not contain parameter named: " + name);
177 }
178 }
179 |
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