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/*
* Copyright 1999,2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jasper;
import java.util.ResourceBundle;
import java.util.MissingResourceException;
import java.text.MessageFormat;
import org.apache.jasper.logging.Logger;
/**
* Some constants and other global data that are used by the compiler and the runtime.
*
* @author Anil K. Vijendran
* @author Harish Prabandham
*/
public class Constants {
public static Logger jasperLog = null;
static {
jasperLog = Logger.getDefaultLogger();
jasperLog.setName("JASPER_LOG");
}
/**
* The base class of the generated servlets.
*/
public static final String JSP_SERVLET_BASE = "HttpJspBase";
/**
* _jspService is the name of the method that is called by
* HttpJspBase.service(). This is where most of the code generated
* from JSPs go.
*/
public static final String SERVICE_METHOD_NAME = "_jspService";
/**
* Default servlet content type.
*/
public static final String SERVLET_CONTENT_TYPE = "text/html";
/**
* These classes/packages are automatically imported by the
* generated code.
*/
public static final String[] STANDARD_IMPORTS = {
"javax.servlet.*",
"javax.servlet.http.*",
"javax.servlet.jsp.*",
"org.apache.jasper.runtime.*",
};
/**
* FIXME
* ServletContext attribute for classpath. This is tomcat specific.
* Other servlet engines can choose to have this attribute if they
* want to have this JSP engine running on them.
*/
//public static final String SERVLET_CLASSPATH = "org.apache.tomcat.jsp_classpath";
public static final String SERVLET_CLASSPATH = "org.apache.catalina.jsp_classpath";
/**
* FIXME
* Request attribute for <jsp-file> element of a
* servlet definition. If present on a request, this overrides the
* value returned by request.getServletPath() to select
* the JSP page to be executed.
*/
public static final String JSP_FILE = "org.apache.catalina.jsp_file";
/**
* FIXME
* ServletContext attribute for class loader. This is tomcat specific.
* Other servlet engines can choose to have this attribute if they
* want to have this JSP engine running on them.
*/
//public static final String SERVLET_CLASS_LOADER = "org.apache.tomcat.classloader";
public static final String SERVLET_CLASS_LOADER = "org.apache.catalina.classloader";
/**
* Default size of the JSP buffer.
*/
public static final int K = 1024;
public static final int DEFAULT_BUFFER_SIZE = 8*K;
/**
* Default size for the tag buffers.
*/
public static final int DEFAULT_TAG_BUFFER_SIZE = 512;
/**
* The query parameter that causes the JSP engine to just
* pregenerated the servlet but not invoke it.
*/
public static final String PRECOMPILE = "jsp_precompile";
/**
* The default package name for compiled jsp pages.
*/
public static final String JSP_PACKAGE_NAME = "org.apache.jsp";
/**
* Servlet context and request attributes that the JSP engine
* uses.
*/
public static final String INC_REQUEST_URI = "javax.servlet.include.request_uri";
public static final String INC_SERVLET_PATH = "javax.servlet.include.servlet_path";
public static final String TMP_DIR = "javax.servlet.context.tempdir";
public static final String FORWARD_SEEN = "javax.servlet.forward.seen";
/**
* Public Id and the Resource path (of the cached copy)
* of the DTDs for tag library descriptors.
*/
public static final String TAGLIB_DTD_PUBLIC_ID_11 =
"-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN";
public static final String TAGLIB_DTD_RESOURCE_PATH_11 =
"/javax/servlet/jsp/resources/web-jsptaglibrary_1_1.dtd";
public static final String TAGLIB_DTD_PUBLIC_ID_12 =
"-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN";
public static final String TAGLIB_DTD_RESOURCE_PATH_12 =
"/javax/servlet/jsp/resources/web-jsptaglibrary_1_2.dtd";
/**
* Public Id and the Resource path (of the cached copy)
* of the DTDs for web application deployment descriptors
*/
public static final String WEBAPP_DTD_PUBLIC_ID_22 =
"-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN";
public static final String WEBAPP_DTD_RESOURCE_PATH_22 =
"/javax/servlet/resources/web-app_2_2.dtd";
public static final String WEBAPP_DTD_PUBLIC_ID_23 =
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN";
public static final String WEBAPP_DTD_RESOURCE_PATH_23 =
"/javax/servlet/resources/web-app_2_3.dtd";
/**
* List of the Public IDs that we cache, and their
* associated location. This is used by
* an EntityResolver to return the location of the
* cached copy of a DTD.
*/
public static final String[] CACHED_DTD_PUBLIC_IDS = {
TAGLIB_DTD_PUBLIC_ID_11,
TAGLIB_DTD_PUBLIC_ID_12,
WEBAPP_DTD_PUBLIC_ID_22,
WEBAPP_DTD_PUBLIC_ID_23,
};
public static final String[] CACHED_DTD_RESOURCE_PATHS = {
TAGLIB_DTD_RESOURCE_PATH_11,
TAGLIB_DTD_RESOURCE_PATH_12,
WEBAPP_DTD_RESOURCE_PATH_22,
WEBAPP_DTD_RESOURCE_PATH_23,
};
/**
* Default URLs to download the pluging for Netscape and IE.
*/
public static final String NS_PLUGIN_URL =
"http://java.sun.com/products/plugin/";
public static final String IE_PLUGIN_URL =
"http://java.sun.com/products/plugin/1.2.2/jinstall-1_2_2-win.cab#Version=1,2,2,0";
/**
* This is where all our error messages and such are stored.
*/
private static ResourceBundle resources;
private static void initResources() {
try {
resources =
ResourceBundle.getBundle("org.apache.jasper.resources.messages");
} catch (MissingResourceException e) {
throw new Error("Fatal Error: missing resource bundle: "+e.getClassName());
}
}
/**
* Get hold of a "message" or any string from our resources
* database.
*/
public static final String getString(String key) {
return getString(key, null);
}
/**
* Format the string that is looked up using "key" using "args".
*/
public static final String getString(String key, Object[] args) {
if (resources == null)
initResources();
try {
String msg = resources.getString(key);
if (args == null)
return msg;
MessageFormat form = new MessageFormat(msg);
return form.format(args);
} catch (MissingResourceException ignore) {
throw new Error("Fatal Error: missing resource: "+ignore.getClassName());
}
}
/**
* Print a message into standard error with a certain verbosity
* level.
*
* @param key is used to look up the text for the message (using
* getString()).
* @param verbosityLevel is used to determine if this output is
* appropriate for the current verbosity
* level.
*/
public static final void message(String key, int verbosityLevel) {
message(key, null, verbosityLevel);
}
/**
* Print a message into standard error with a certain verbosity
* level after formatting it using "args".
*
* @param key is used to look up the message.
* @param args is used to format the message.
* @param verbosityLevel is used to determine if this output is
* appropriate for the current verbosity
* level.
*/
public static final void message(String key, Object[] args, int verbosityLevel) {
if (jasperLog == null) {
jasperLog = Logger.getLogger("JASPER_LOG");
if (jasperLog == null) {
jasperLog = Logger.getDefaultLogger();
}
}
if (jasperLog != null) {
jasperLog.log(getString(key, args), verbosityLevel);
}
}
}
