1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
|
12 | |
|
13 | |
|
14 | |
|
15 | |
|
16 | |
package org.seasar.cubby.filter; |
17 | |
|
18 | |
import static org.seasar.cubby.CubbyConstants.ATTR_ACTION_CLASS_NAME; |
19 | |
import static org.seasar.cubby.CubbyConstants.ATTR_METHOD_NAME; |
20 | |
|
21 | |
import java.io.IOException; |
22 | |
import java.util.ArrayList; |
23 | |
import java.util.Collections; |
24 | |
import java.util.List; |
25 | |
import java.util.StringTokenizer; |
26 | |
import java.util.regex.Matcher; |
27 | |
import java.util.regex.Pattern; |
28 | |
|
29 | |
import javax.servlet.Filter; |
30 | |
import javax.servlet.FilterChain; |
31 | |
import javax.servlet.FilterConfig; |
32 | |
import javax.servlet.RequestDispatcher; |
33 | |
import javax.servlet.ServletException; |
34 | |
import javax.servlet.ServletRequest; |
35 | |
import javax.servlet.ServletResponse; |
36 | |
import javax.servlet.http.HttpServletRequest; |
37 | |
import javax.servlet.http.HttpServletResponse; |
38 | |
|
39 | |
import org.seasar.cubby.convention.ForwardInfo; |
40 | |
import org.seasar.cubby.convention.PathResolver; |
41 | |
import org.seasar.cubby.util.CubbyUtils; |
42 | |
import org.seasar.framework.container.S2Container; |
43 | |
import org.seasar.framework.container.factory.SingletonS2ContainerFactory; |
44 | |
import org.seasar.framework.log.Logger; |
45 | |
import org.seasar.framework.util.StringUtil; |
46 | |
|
47 | |
|
48 | |
|
49 | |
|
50 | |
|
51 | |
|
52 | |
|
53 | |
|
54 | |
|
55 | 0 | public class RequestRoutingFilter implements Filter { |
56 | |
|
57 | 0 | private static final Logger logger = Logger |
58 | |
.getLogger(RequestRoutingFilter.class); |
59 | |
|
60 | 0 | private static final Router router = new Router(); |
61 | |
|
62 | 0 | private final List<Pattern> ignorePathPatterns = new ArrayList<Pattern>(); |
63 | |
|
64 | |
public void init(final FilterConfig config) throws ServletException { |
65 | 0 | final String ignorePathPatternString = config |
66 | |
.getInitParameter("ignorePathPattern"); |
67 | 0 | if (!StringUtil.isEmpty(ignorePathPatternString)) { |
68 | |
|
69 | 0 | for (final StringTokenizer tokenizer = new StringTokenizer( |
70 | 0 | ignorePathPatternString, ","); tokenizer.hasMoreTokens();) { |
71 | 0 | final String token = tokenizer.nextToken(); |
72 | 0 | final Pattern pattern = Pattern.compile(token); |
73 | 0 | ignorePathPatterns.add(pattern); |
74 | 0 | } |
75 | |
} |
76 | 0 | } |
77 | |
|
78 | |
public void destroy() { |
79 | 0 | } |
80 | |
|
81 | |
public void doFilter(final ServletRequest request, |
82 | |
final ServletResponse response, final FilterChain chain) |
83 | |
throws IOException, ServletException { |
84 | |
|
85 | 0 | final String forwardPath = router.routing((HttpServletRequest) request, |
86 | |
(HttpServletResponse) response, ignorePathPatterns); |
87 | 0 | if (!StringUtil.isEmpty(forwardPath)) { |
88 | 0 | if (logger.isDebugEnabled()) { |
89 | 0 | logger.log("DCUB0001", new Object[] { forwardPath }); |
90 | |
} |
91 | 0 | final RequestDispatcher requestDispatcher = request |
92 | |
.getRequestDispatcher(forwardPath); |
93 | 0 | requestDispatcher.forward(request, response); |
94 | 0 | } else { |
95 | 0 | chain.doFilter(request, response); |
96 | |
} |
97 | 0 | } |
98 | |
|
99 | 0 | public static class Router { |
100 | |
|
101 | 0 | private static final List<Pattern> EMPTY_IGNORE_PATH_PATTERNS = Collections |
102 | |
.emptyList(); |
103 | |
|
104 | |
public String routing(final HttpServletRequest request, |
105 | |
final HttpServletResponse response) { |
106 | 0 | return routing(request, response, EMPTY_IGNORE_PATH_PATTERNS); |
107 | |
} |
108 | |
|
109 | |
public String routing(final HttpServletRequest request, |
110 | |
final HttpServletResponse response, List<Pattern> ignorePattern) { |
111 | 0 | final String path = CubbyUtils.getPath(request); |
112 | |
|
113 | 0 | if (isIgnorePath(path, ignorePattern)) { |
114 | 0 | return null; |
115 | |
} |
116 | |
|
117 | 0 | final S2Container container = SingletonS2ContainerFactory |
118 | |
.getContainer(); |
119 | 0 | final PathResolver pathResolver = (PathResolver) container |
120 | |
.getComponent(PathResolver.class); |
121 | |
|
122 | |
final String forwardPath; |
123 | 0 | final ForwardInfo forwardInfo = pathResolver.getForwardInfo(path); |
124 | 0 | if (forwardInfo != null) { |
125 | 0 | request.setAttribute(ATTR_ACTION_CLASS_NAME, forwardInfo |
126 | |
.getActionClassName()); |
127 | 0 | request.setAttribute(ATTR_METHOD_NAME, forwardInfo |
128 | |
.getMethodName()); |
129 | 0 | forwardPath = forwardInfo.getForwardPath(); |
130 | |
} else { |
131 | 0 | forwardPath = null; |
132 | |
} |
133 | 0 | return forwardPath; |
134 | |
} |
135 | |
|
136 | |
private boolean isIgnorePath(final String path, |
137 | |
List<Pattern> ignorePathPatterns) { |
138 | 0 | for (final Pattern pattern : ignorePathPatterns) { |
139 | 0 | final Matcher matcher = pattern.matcher(path); |
140 | 0 | if (matcher.matches()) { |
141 | 0 | return true; |
142 | |
} |
143 | 0 | } |
144 | 0 | return false; |
145 | |
} |
146 | |
|
147 | |
} |
148 | |
|
149 | |
} |