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1
19
20 package org.netbeans.modules.web.debug.util;
21
22 import java.util.Vector  ;
23
24
26 public class JspNameUtil {
27
28 private static final String javaKeywords[] = {
29 "abstract", "boolean", "break", "byte", "case",
30 "catch", "char", "class", "const", "continue",
31 "default", "do", "double", "else", "extends",
32 "final", "finally", "float", "for", "goto",
33 "if", "implements", "import", "instanceof", "int",
34 "interface", "long", "native", "new", "package",
35 "private", "protected", "public", "return", "short",
36 "static", "strictfp", "super", "switch", "synchronized",
37 "this", "throws", "transient", "try", "void",
38 "volatile", "while" };
39
40
43 private static final String JSP_PACKAGE_NAME = "org.apache.jsp";
44
45
52 private static final String makeJavaPackage(String path) {
53 String classNameComponents[] = split(path,"/");
54 StringBuffer legalClassNames = new StringBuffer ();
55 for (int i = 0; i < classNameComponents.length; i++) {
56 legalClassNames.append(makeJavaIdentifier(classNameComponents[i]));
57 if (i < classNameComponents.length - 1) {
58 legalClassNames.append('.');
59 }
60 }
61 return legalClassNames.toString();
62 }
63
64
70 private static final String [] split(String path, String pat) {
71 Vector comps = new Vector ();
72 int pos = path.indexOf(pat);
73 int start = 0;
74 while( pos >= 0 ) {
75 if(pos > start ) {
76 String comp = path.substring(start,pos);
77 comps.add(comp);
78 }
79 start = pos + pat.length();
80 pos = path.indexOf(pat,start);
81 }
82 if( start < path.length()) {
83 comps.add(path.substring(start));
84 }
85 String [] result = new String [comps.size()];
86 for(int i=0; i < comps.size(); i++) {
87 result[i] = (String )comps.elementAt(i);
88 }
89 return result;
90 }
91
92
99 private static final String makeJavaIdentifier(String identifier) {
100 StringBuffer modifiedIdentifier =
101 new StringBuffer (identifier.length());
102 if (!Character.isJavaIdentifierStart(identifier.charAt(0))) {
103 modifiedIdentifier.append('_');
104 }
105 for (int i = 0; i < identifier.length(); i++) {
106 char ch = identifier.charAt(i);
107 if (Character.isJavaIdentifierPart(ch) && ch != '_') {
108 modifiedIdentifier.append(ch);
109 } else if (ch == '.') {
110 modifiedIdentifier.append('_');
111 } else {
112 modifiedIdentifier.append(mangleChar(ch));
113 }
114 }
115 if (isJavaKeyword(modifiedIdentifier.toString())) {
116 modifiedIdentifier.append('_');
117 }
118 return modifiedIdentifier.toString();
119 }
120
121
124 private static final String mangleChar(char ch) {
125 char[] result = new char[5];
126 result[0] = '_';
127 result[1] = Character.forDigit((ch >> 12) & 0xf, 16);
128 result[2] = Character.forDigit((ch >> 8) & 0xf, 16);
129 result[3] = Character.forDigit((ch >> 4) & 0xf, 16);
130 result[4] = Character.forDigit(ch & 0xf, 16);
131 return new String (result);
132 }
133
134
137 private static boolean isJavaKeyword(String key) {
138 int i = 0;
139 int j = javaKeywords.length;
140 while (i < j) {
141 int k = (i+j)/2;
142 int result = javaKeywords[k].compareTo(key);
143 if (result == 0) {
144 return true;
145 }
146 if (result < 0) {
147 i = k+1;
148 } else {
149 j = k;
150 }
151 }
152 return false;
153 }
154
155 public static String getServletResourcePath(String moduleContextPath, String jspResourcePath) {
156 return getServletPackageName(jspResourcePath).replace('.', '/') + '/' +
157 getServletClassName(jspResourcePath) + ".java";
158 }
159
160 private static String getServletPackageName(String jspUri) {
161 String dPackageName = getDerivedPackageName(jspUri);
162 if (dPackageName.length() == 0) {
163 return JSP_PACKAGE_NAME;
164 }
165 return JSP_PACKAGE_NAME + '.' + getDerivedPackageName(jspUri);
166 }
167
168 private static String getDerivedPackageName(String jspUri) {
169 int iSep = jspUri.lastIndexOf('/');
170 return (iSep > 0) ? makeJavaPackage(jspUri.substring(0,iSep)) : "";
171 }
172
173 private static String getServletClassName(String jspUri) {
174 int iSep = jspUri.lastIndexOf('/') + 1;
175 return makeJavaIdentifier(jspUri.substring(iSep));
176 }
177
178 }
179 |
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