Constants


1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    * 
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   * 
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.jasper;
19  
20  
21  /**
22   * Some constants and other global data that are used by the compiler and the runtime.
23   *
24   * @author Anil K. Vijendran
25   * @author Harish Prabandham
26   * @author Shawn Bayern
27   * @author Mark Roth
28   */
29  public class Constants {
30      
31      /**
32       * The base class of the generated servlets. 
33       */
34      public static final String   JSP_SERVLET_BASE = 
35          System.getProperty("org.apache.jasper.Constants.JSP_SERVLET_BASE", "org.apache.jasper.runtime.HttpJspBase");
36  
37      /**
38       * _jspService is the name of the method that is called by 
39       * HttpJspBase.service(). This is where most of the code generated
40       * from JSPs go.
41       */
42      public static final String   SERVICE_METHOD_NAME = 
43          System.getProperty("org.apache.jasper.Constants.SERVICE_METHOD_NAME", "_jspService");
44  
45      /**
46       * Default servlet content type.
47       */
48      public static final String   SERVLET_CONTENT_TYPE = "text/html";
49  
50      /**
51       * These classes/packages are automatically imported by the
52       * generated code. 
53       */
54      public static final String  [] STANDARD_IMPORTS = { 
55      "javax.servlet.*", 
56      "javax.servlet.http.*", 
57      "javax.servlet.jsp.*"
58      };
59  
60      /**
61       * ServletContext attribute for classpath. This is tomcat specific. 
62       * Other servlet engines may choose to support this attribute if they 
63       * want to have this JSP engine running on them. 
64       */
65      public static final String   SERVLET_CLASSPATH = 
66          System.getProperty("org.apache.jasper.Constants.SERVLET_CLASSPATH", "org.apache.catalina.jsp_classpath");
67  
68      /**
69       * Request attribute for <code>&lt;jsp-file&gt;</code> element of a
70       * servlet definition.  If present on a request, this overrides the
71       * value returned by <code>request.getServletPath()</code> to select
72       * the JSP page to be executed.
73       */
74      public static final String   JSP_FILE = 
75          System.getProperty("org.apache.jasper.Constants.JSP_FILE", "org.apache.catalina.jsp_file");
76  
77  
78      /**
79       * Default size of the JSP buffer.
80       */
81      public static final int DEFAULT_BUFFER_SIZE = 8 * 1024;
82  
83      /**
84       * Default size for the tag buffers.
85       */
86      public static final int DEFAULT_TAG_BUFFER_SIZE = 512;
87  
88      /**
89       * Default tag handler pool size.
90       */
91      public static final int MAX_POOL_SIZE = 5;
92  
93      /**
94       * The query parameter that causes the JSP engine to just
95       * pregenerated the servlet but not invoke it. 
96       */
97      public static final String   PRECOMPILE = 
98          System.getProperty("org.apache.jasper.Constants.PRECOMPILE", "jsp_precompile");
99  
100     /**
101      * The default package name for compiled jsp pages.
102      */
103     public static final String   JSP_PACKAGE_NAME = 
104         System.getProperty("org.apache.jasper.Constants.JSP_PACKAGE_NAME", "org.apache.jsp");
105 
106     /**
107      * The default package name for tag handlers generated from tag files
108      */
109     public static final String   TAG_FILE_PACKAGE_NAME = 
110         System.getProperty("org.apache.jasper.Constants.TAG_FILE_PACKAGE_NAME", "org.apache.jsp.tag");
111 
112     /**
113      * Servlet context and request attributes that the JSP engine
114      * uses. 
115      */
116     public static final String   INC_SERVLET_PATH = "javax.servlet.include.servlet_path";
117     public static final String   TMP_DIR = "javax.servlet.context.tempdir";
118 
119     // Must be kept in sync with org/apache/catalina/Globals.java
120     public static final String   ALT_DD_ATTR = 
121         System.getProperty("org.apache.jasper.Constants.ALT_DD_ATTR", "org.apache.catalina.deploy.alt_dd");
122 
123     /**
124      * Public Id and the Resource path (of the cached copy) 
125      * of the DTDs for tag library descriptors. 
126      */
127     public static final String   TAGLIB_DTD_PUBLIC_ID_11 = 
128     "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN";
129     public static final String   TAGLIB_DTD_RESOURCE_PATH_11 = 
130     "/javax/servlet/jsp/resources/web-jsptaglibrary_1_1.dtd";
131     public static final String   TAGLIB_DTD_PUBLIC_ID_12 = 
132     "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN";
133     public static final String   TAGLIB_DTD_RESOURCE_PATH_12 = 
134     "/javax/servlet/jsp/resources/web-jsptaglibrary_1_2.dtd";
135 
136     /**
137      * Public Id and the Resource path (of the cached copy) 
138      * of the DTDs for web application deployment descriptors
139      */
140     public static final String   WEBAPP_DTD_PUBLIC_ID_22 = 
141     "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN";
142     public static final String   WEBAPP_DTD_RESOURCE_PATH_22 = 
143     "/javax/servlet/resources/web-app_2_2.dtd";
144     public static final String   WEBAPP_DTD_PUBLIC_ID_23 = 
145     "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN";
146     public static final String   WEBAPP_DTD_RESOURCE_PATH_23 = 
147     "/javax/servlet/resources/web-app_2_3.dtd";
148 
149     /**
150      * List of the Public IDs that we cache, and their
151      * associated location. This is used by 
152      * an EntityResolver to return the location of the
153      * cached copy of a DTD.
154      */
155     public static final String  [] CACHED_DTD_PUBLIC_IDS = {
156     TAGLIB_DTD_PUBLIC_ID_11,
157     TAGLIB_DTD_PUBLIC_ID_12,
158     WEBAPP_DTD_PUBLIC_ID_22,
159     WEBAPP_DTD_PUBLIC_ID_23,
160     };
161     public static final String  [] CACHED_DTD_RESOURCE_PATHS = {
162     TAGLIB_DTD_RESOURCE_PATH_11,
163     TAGLIB_DTD_RESOURCE_PATH_12,
164     WEBAPP_DTD_RESOURCE_PATH_22,
165     WEBAPP_DTD_RESOURCE_PATH_23,
166     };
167     
168     /**
169      * Default URLs to download the pluging for Netscape and IE.
170      */
171     public static final String   NS_PLUGIN_URL = 
172         "http://java.sun.com/products/plugin/";
173 
174     public static final String   IE_PLUGIN_URL = 
175         "http://java.sun.com/products/plugin/1.2.2/jinstall-1_2_2-win.cab#Version=1,2,2,0";
176 
177     /**
178      * Prefix to use for generated temporary variable names
179      */
180     public static final String   TEMP_VARIABLE_NAME_PREFIX =
181         System.getProperty("org.apache.jasper.Constants.TEMP_VARIABLE_NAME_PREFIX", "_jspx_temp");
182 
183     /**
184      * A replacement char for "\$".
185      * XXX This is a hack to avoid changing EL interpreter to recognize "\$"
186      */
187     public static final char ESC = '\u001b';
188     public static final String   ESCStr = "'\\u001b'";
189 
190 }
191
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