/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.compiler;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.TimeZone;
import java.util.Vector;
import javax.el.MethodExpression;
import javax.el.ValueExpression;
import javax.servlet.jsp.tagext.TagAttributeInfo;
import javax.servlet.jsp.tagext.TagInfo;
import javax.servlet.jsp.tagext.TagVariableInfo;
import javax.servlet.jsp.tagext.VariableInfo;
import org.apache.el.util.JreCompat;
import org.apache.jasper.Constants;
import org.apache.jasper.JasperException;
import org.apache.jasper.JspCompilationContext;
import org.apache.jasper.compiler.Node.ChildInfoBase;
import org.apache.jasper.compiler.Node.NamedAttribute;
import org.apache.jasper.runtime.JspRuntimeLibrary;
import org.xml.sax.Attributes;
/**
* Generate Java source from Nodes
*
* @author Anil K. Vijendran
* @author Danno Ferrin
* @author Mandar Raje
* @author Rajiv Mordani
* @author Pierre Delisle
*
* Tomcat 4.1.x and Tomcat 5:
* @author Kin-man Chung
* @author Jan Luehe
* @author Shawn Bayern
* @author Mark Roth
* @author Denis Benoit
*
* Tomcat 6.x
* @author Jacob Hookom
* @author Remy Maucherat
*/
class Generator {
private static final Class<?>[] OBJECT_CLASS = { Object.class };
private static final String VAR_EXPRESSIONFACTORY =
System.getProperty("org.apache.jasper.compiler.Generator.VAR_EXPRESSIONFACTORY", "_el_expressionfactory");
private static final String VAR_INSTANCEMANAGER =
System.getProperty("org.apache.jasper.compiler.Generator.VAR_INSTANCEMANAGER", "_jsp_instancemanager");
private static final boolean POOL_TAGS_WITH_EXTENDS =
Boolean.getBoolean("org.apache.jasper.compiler.Generator.POOL_TAGS_WITH_EXTENDS");
/* System property that controls if the requirement to have the object
* used in jsp:getProperty action to be previously "introduced"
* to the JSP processor (see JSP.5.3) is enforced.
*/
private static final boolean STRICT_GET_PROPERTY = Boolean.parseBoolean(
System.getProperty(
"org.apache.jasper.compiler.Generator.STRICT_GET_PROPERTY",
"true"));
private final ServletWriter out;
private final ArrayList<GenBuffer> methodsBuffered;
private final FragmentHelperClass fragmentHelperClass;
private final ErrorDispatcher err;
private final BeanRepository beanInfo;
private final Set<String> varInfoNames;
private final JspCompilationContext ctxt;
private final boolean isPoolingEnabled;
private final boolean breakAtLF;
private String jspIdPrefix;
private int jspId;
private final PageInfo pageInfo;
private final Vector<String> tagHandlerPoolNames;
private GenBuffer charArrayBuffer;
private final DateFormat timestampFormat;
private final ELInterpreter elInterpreter;
private final StringInterpreter stringInterpreter;
/**
* @param s
* the input string
* @return quoted and escaped string, per Java rule
*/
static String quote(String s) {
if (s == null) {
return "null";
}
return '"' + escape(s) + '"';
}
/**
* @param s the input string - must not be {@code null}
*
* @return escaped string, per Java rule
*/
static String escape(String s) {
StringBuilder b = new StringBuilder();
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
if (c == '"') {
b.append('\\').append('"');
} else if (c == '\\') {
b.append('\\').append('\\');
} else if (c == '\n') {
b.append('\\').append('n');
} else if (c == '\r') {
b.append('\\').append('r');
} else {
b.append(c);
}
}
return b.toString();
}
/**
* Single quote and escape a character
*/
static String quote(char c) {
StringBuilder b = new StringBuilder();
b.append('\'');
if (c == '\'') {
b.append('\\').append('\'');
} else if (c == '\\') {
b.append('\\').append('\\');
} else if (c == '\n') {
b.append('\\').append('n');
} else if (c == '\r') {
b.append('\\').append('r');
} else {
b.append(c);
}
b.append('\'');
return b.toString();
}
private String createJspId() {
if (this.jspIdPrefix == null) {
StringBuilder sb = new StringBuilder(32);
String name = ctxt.getServletJavaFileName();
sb.append("jsp_");
// Cast to long to avoid issue with Integer.MIN_VALUE
sb.append(Math.abs((long) name.hashCode()));
sb.append('_');
this.jspIdPrefix = sb.toString();
}
return this.jspIdPrefix + (this.jspId++);
}
/**
* Generates declarations. This includes "info" of the page directive, and
* scriptlet declarations.
*/
private void generateDeclarations(Node.Nodes page) throws JasperException {
class DeclarationVisitor extends Node.Visitor {
private boolean getServletInfoGenerated = false;
/*
* Generates getServletInfo() method that returns the value of the
* page directive's 'info' attribute, if present.
*
* The Validator has already ensured that if the translation unit
* contains more than one page directive with an 'info' attribute,
* their values match.
*/
@Override
public void visit(Node.PageDirective n) throws JasperException {
if (getServletInfoGenerated) {
return;
}
String info = n.getAttributeValue("info");
if (info == null) {
return;
}
getServletInfoGenerated = true;
out.printil("public java.lang.String getServletInfo() {");
out.pushIndent();
out.printin("return ");
out.print(quote(info));
out.println(";");
out.popIndent();
out.printil("}");
out.println();
}
@Override
apache-tomcat-8.5.68-src （2000个子文件） 
docs-stylesheet.css 6KB tomcat.css 6KB manager.css 3KB manager.css 3KB fonts.css 2KB
package.html 58KB index.html 14KB package.html 11KB ELParser.html 9KB index.html 6KB reqparams.html 5KB package.html 4KB reqinfo.html 4KB sessions.html 3KB package.html 3KB cookies.html 3KB package.html 3KB helloworld.html 3KB ColorGameBean.html 2KB package.html 2KB package.html 2KB reqheaders.html 2KB index.html 2KB svgexample.html 2KB package.html 2KB package.html 2KB package.html 2KB notes.html 2KB calendar.html 2KB book.html 2KB howto.html 2KB package.html 2KB package.html 2KB package.html 2KB jspattribute.html 2KB colors.html 2KB shuffle.html 2KB login.html 2KB config.html 1KB hello.html 1KB index.html 1KB repeat.html 1KB dynamicattrs.html 1KB bytecounter.html 1KB functions.html 1KB CheckTest.html 1KB DummyCart.html 1KB products.html 1KB composite.html 1KB clr.html 1KB cresult.html 1KB hello.html 1KB carts.html 1KB numguess.html 1KB panel.html 1KB crt.html 1KB jts.html 1KB implicit-objects.html 1KB basic-comparisons.html 1KB basic-arithmetic.html 1KB snoop.html 1KB fwd.html 1KB inc.html 1KB foo.html 1KB error.html 1KB plugin.html 1KB xml.html 1KB er.html 1KB date.html 1KB check.html 1KB foreach.html 1KB choose.html 1KB textRotate.html 1KB if.html 1KB package.html 1KB package.html 1KB basic.html 1KB package.html 1KB index.html 1KB index.html 1KB index.html 1KB index.html 1KB index.html 1KB index.html 1KB index.html 1KB package.html 1KB package.html 1KB index.html 1KB package.html 1KB package.html 1KB package.html 1KB package.html 997B package.html 905B package.html 900B package.html 895B two.html 893B package.html 890B foo.html 834B Generator.java 173KB Cipher.java 131KB共 2000 条
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