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1 package com.quadcap.http.servlets.jsp;
2
3
40
41 import java.io.CharArrayWriter  ;
42 import java.io.IOException ;
43 import java.io.PrintWriter ;
44
45 import java.util.Enumeration ;
46
47 import org.xml.sax.AttributeList ;
48
49 import com.quadcap.util.Debug;
50
51
56 public class TagJspRoot extends TagJsp {
57 CharArrayWriter cw = null;
58 PrintWriter w = null;
59 PrintWriter ow = null;
60 AttributeList attributes = null;
61
62 public TagJspRoot() {}
63
64 public TagJspRoot(TagContext context) {
65 super(context);
66 }
67
68 public TagInstance makeInstance(TagContext context) {
69 return new TagJspRoot(context);
70 }
71
72 public void doStartTag(String tagName, AttributeList attributes)
73 throws JspException
74 {
75 super.doStartTag(tagName, attributes);
76 cw = new CharArrayWriter ();
77 w = new PrintWriter (cw);
78 ow = context.pushPrintWriter(w);
79 this.attributes = attributes;
80 }
81
82 public void writeProlog(PrintWriter w) {
83 w.print("package ");
84 w.print(context.getPackageName());
85 w.println(";");
86 w.println("//This code auto-generated");
87 w.println("");
88 w.println("import java.io.IOException;");
89 w.println("");
90 w.println("import javax.servlet.jsp.HttpJspPage;");
91 w.println("import javax.servlet.jsp.JspFactory;");
92 w.println("import javax.servlet.jsp.JspWriter;");
93 w.println("import javax.servlet.jsp.PageContext;");
94 w.println("");
95 w.println("import javax.servlet.ServletConfig;");
96 w.println("import javax.servlet.ServletContext;");
97 w.println("import javax.servlet.ServletException;");
98 w.println("");
99 w.println("import javax.servlet.http.HttpServletRequest;");
100 w.println("import javax.servlet.http.HttpServletResponse;");
101 w.println("import javax.servlet.http.HttpSession;");
102 w.println("");
103 Enumeration imports = context.getPageDirectives("import");
104 while (imports.hasMoreElements()) {
105 w.print("import ");
106 w.print(imports.nextElement().toString());
107 w.println(";");
108 }
109 w.println("");
110 w.print("public class ");
111 w.print(context.getClassName());
112
113 String extendsStr =
114 context.getPageDirective("extends",
115 "com.quadcap.http.servlets.jsp.JspPage");
116 w.print(" extends ");
117 w.print(extendsStr);
118
119 if (context.getPageDirective("isThreadSafe", "true").equals("false")) {
120 w.print(" implements javax.servlet.SingleThreadModel");
121 }
122 w.println(" {");
123
124 w.print(" public ");
125 w.print(context.getClassName());
126 w.println("() {}");
127 w.println();
128
129 Enumeration declarations = context.getPageDirectives("declarations");
130 while (declarations.hasMoreElements()) {
131 w.println(declarations.nextElement());
132 }
133 w.println();
134
135 String info = context.getPageDirective("info");
136 if (info != null && info.length() > 0) {
137 w.println(" public String getServletInfo() {");
138 w.print(" return \"");
139 w.print(info);
140 w.println("\");");
141 w.println();
142 }
143
144
145 w.print(" public void _jspService(HttpServletRequest request,");
146 w.print(" HttpServletResponse response) throws ServletException, ");
147 w.println(" IOException {");
148
149 w.println(" JspFactory factory = JspFactory.getDefaultFactory();");
150 w.println(" PageContext pageContext = factory.getPageContext(");
151 w.print(" this, request, response, ");
152 String err = context.getPageDirective("errorPage");
153 if (err == null) {
154 err = "null";
155 } else {
156 err = "\"" + err + "\"";
157 }
158 w.print(err);
159 w.println(", false,");
160
161 String b = context.getPageDirective("buffer", "8kb");
162 int mul = 1;
163 if (b.endsWith("kb")) {
164 b = b.substring(0, b.length() - 2);
165 mul = 1024;
166 }
167 int bufSize = Integer.parseInt(b) * mul;
168 w.print(" ");
169 w.print(String.valueOf(bufSize));
170 w.print(", ");
171
172 String autoFlush = context.getPageDirective("autoFlush", "true");
173 w.print(autoFlush);
174 w.println(");");
175
176 String s = context.getPageDirective("session");
177 if (s == null || !s.equals("false")) {
178 w.println(" HttpSession session = pageContext.getSession();");
179 }
180
181 s = context.getPageDirective("isErrorPage");
182 if (s != null && s.equals("true")) {
183 w.println(" Exception exception = pageContext.getException();");
184 }
185
186 w.println(" JspWriter out = pageContext.getOut();");
187 w.println(" Object page = this;");
188 w.println(" ServletContext application = pageContext.getServletContext();");
189 w.println(" ServletConfig config = pageContext.getServletConfig();");
190
191 s = context.getPageDirective("contentType");
192 if (s != null && s.length() > 0) {
193 w.print(" response.setContentType(\"");
194 w.print(s);
195 w.print("\");");
196 }
197 w.println(" try {");
198 }
199
200 public void doEndTag() throws JspException {
201 w.flush();
202 writeProlog(ow);
203 try {
204 cw.writeTo(ow);
205 } catch (IOException e) {
206 Debug.print(e);
207 throw new JspException(e.toString());
208 }
209 doEpilog(ow);
210 context.popPrintWriter();
211 }
212
213 void doEpilog(PrintWriter w) {
214 w.println(" } catch (Exception e) {");
215 w.println(" out.clear();");
216 w.println(" pageContext.handlePageException(e);");
217 w.println(" }");
220 w.println(" }");
221 w.println("}");
222 }
223
224 public void doCharacters(char[] ch, int off, int cnt) throws JspException {
225 PrintWriter w = context.getPrintWriter();
226
227 w.print("out.print(\"");
228 for (int i = 0; i < cnt; i++) {
229 char c = ch[off + i];
230 switch (c) {
231 case '\n':
232 w.print("\\n");
233 break;
234 case '\r':
235 w.print("\\r");
236 break;
237 case '\t':
238 w.print("\\t");
239 break;
240 case '\'':
241 w.print("\\'");
242 break;
243 case '\"':
244 w.print("\\\"");
245 break;
246 case '\\':
247 w.print("\\\\");
248 break;
249 default:
250 if (c > 0xfff) {
251 w.print("\\u");
252 w.print(Integer.toHexString(c));
253 } else if (c > 0xff) {
254 w.print("\\u0");
255 w.print(Integer.toHexString(c));
256 } else if (c <= 0x1f || c >= 0xf7f) {
257 w.print("\\u00");
258 w.print(Integer.toHexString(c));
259 } else {
260 w.print((char)c);
261 }
262 }
263 }
264 w.println("\");");
265 }
266 }
267
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