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1
19
20 package org.netbeans.modules.web.project.parser;
21
22 import java.util.Vector  ;
23 import org.openide.filesystems.FileObject;
24 import org.openide.filesystems.FileUtil;
25
26
28 public class JspNameUtil {
29
30 private static final String javaKeywords[] = {
31 "abstract", "boolean", "break", "byte", "case",
32 "catch", "char", "class", "const", "continue",
33 "default", "do", "double", "else", "extends",
34 "final", "finally", "float", "for", "goto",
35 "if", "implements", "import", "instanceof", "int",
36 "interface", "long", "native", "new", "package",
37 "private", "protected", "public", "return", "short",
38 "static", "strictfp", "super", "switch", "synchronized",
39 "this", "throws", "transient", "try", "void",
40 "volatile", "while" };
41
42
45 private static final String JSP_PACKAGE_NAME = "org.apache.jsp";
46
47
54 private static final String makeJavaPackage(String path) {
55 String classNameComponents[] = split(path,"/");
56 StringBuffer legalClassNames = new StringBuffer ();
57 for (int i = 0; i < classNameComponents.length; i++) {
58 legalClassNames.append(makeJavaIdentifier(classNameComponents[i]));
59 if (i < classNameComponents.length - 1) {
60 legalClassNames.append('.');
61 }
62 }
63 return legalClassNames.toString();
64 }
65
66
72 private static final String [] split(String path, String pat) {
73 Vector comps = new Vector ();
74 int pos = path.indexOf(pat);
75 int start = 0;
76 while( pos >= 0 ) {
77 if(pos > start ) {
78 String comp = path.substring(start,pos);
79 comps.add(comp);
80 }
81 start = pos + pat.length();
82 pos = path.indexOf(pat,start);
83 }
84 if( start < path.length()) {
85 comps.add(path.substring(start));
86 }
87 String [] result = new String [comps.size()];
88 for(int i=0; i < comps.size(); i++) {
89 result[i] = (String )comps.elementAt(i);
90 }
91 return result;
92 }
93
94
101 private static final String makeJavaIdentifier(String identifier) {
102 StringBuffer modifiedIdentifier =
103 new StringBuffer (identifier.length());
104 if (!Character.isJavaIdentifierStart(identifier.charAt(0))) {
105 modifiedIdentifier.append('_');
106 }
107 for (int i = 0; i < identifier.length(); i++) {
108 char ch = identifier.charAt(i);
109 if (Character.isJavaIdentifierPart(ch) && ch != '_') {
110 modifiedIdentifier.append(ch);
111 } else if (ch == '.') {
112 modifiedIdentifier.append('_');
113 } else {
114 modifiedIdentifier.append(mangleChar(ch));
115 }
116 }
117 if (isJavaKeyword(modifiedIdentifier.toString())) {
118 modifiedIdentifier.append('_');
119 }
120 return modifiedIdentifier.toString();
121 }
122
123
126 private static final String mangleChar(char ch) {
127 char[] result = new char[5];
128 result[0] = '_';
129 result[1] = Character.forDigit((ch >> 12) & 0xf, 16);
130 result[2] = Character.forDigit((ch >> 8) & 0xf, 16);
131 result[3] = Character.forDigit((ch >> 4) & 0xf, 16);
132 result[4] = Character.forDigit(ch & 0xf, 16);
133 return new String (result);
134 }
135
136
139 private static boolean isJavaKeyword(String key) {
140 int i = 0;
141 int j = javaKeywords.length;
142 while (i < j) {
143 int k = (i+j)/2;
144 int result = javaKeywords[k].compareTo(key);
145 if (result == 0) {
146 return true;
147 }
148 if (result < 0) {
149 i = k+1;
150 } else {
151 j = k;
152 }
153 }
154 return false;
155 }
156
157 public static String getServletName(FileObject docBase, FileObject jsp) {
158 String jspRelativePath = FileUtil.getRelativePath(docBase, jsp);
159 return getServletResourcePath(null, jspRelativePath);
160 }
161
162 public static String getServletResourcePath(String moduleContextPath, String jspResourcePath) {
163 return getServletPackageName(jspResourcePath).replace('.', '/') + '/' +
164 getServletClassName(jspResourcePath) + ".java";
165 }
166
167 private static String getServletPackageName(String jspUri) {
168 String dPackageName = getDerivedPackageName(jspUri);
169 if (dPackageName.length() == 0) {
170 return JSP_PACKAGE_NAME;
171 }
172 return JSP_PACKAGE_NAME + '.' + getDerivedPackageName(jspUri);
173 }
174
175 private static String getDerivedPackageName(String jspUri) {
176 int iSep = jspUri.lastIndexOf('/');
177 return (iSep > 0) ? makeJavaPackage(jspUri.substring(0,iSep)) : "";
178 }
179
180 private static String getServletClassName(String jspUri) {
181 int iSep = jspUri.lastIndexOf('/') + 1;
182 return makeJavaIdentifier(jspUri.substring(iSep));
183 }
184
185 }
186 |
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