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* Copyright 2004 The Apache Software Foundation
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* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
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package org.apache.jasper.compiler;
import java.util.*;
import org.apache.jasper.Constants;
import org.apache.jasper.JasperException;
import javax.servlet.jsp.tagext.TagLibraryInfo;
/**
* A repository for various info about the translation unit under compilation.
*
* @author Kin-man Chung
*/
public class PageInfo {
/**
* These classes/packages are automatically imported by the
* generated code.
*/
private static final String[] STANDARD_IMPORTS = {
"javax.servlet.*",
"javax.servlet.http.*",
"javax.servlet.jsp.*"
};
private List imports;
private List dependants;
private BeanRepository beanRepository;
private HashMap taglibsMap;
private HashMap jspPrefixMapper;
private HashMap> xmlPrefixMapper;
private HashMap nonCustomTagPrefixMap;
private String jspFile;
private String defaultLanguage = "java";
private String language;
private String defaultExtends = Constants.JSP_SERVLET_BASE;
private String xtends;
private String contentType = null;
private String session;
private boolean isSession = true;
private String bufferValue;
private int buffer = 8*1024; // XXX confirm
private String autoFlush;
private boolean isAutoFlush = true;
private String isThreadSafeValue;
private boolean isThreadSafe = true;
private String isErrorPageValue;
private boolean isErrorPage = false;
private String errorPage = null;
private String info;
private int maxTagNesting = 0;
private boolean scriptless = false;
private boolean scriptingInvalid = false;
private String isELIgnoredValue;
private boolean isELIgnored = false;
private String omitXmlDecl = null;
private String doctypeName = null;
private String doctypePublic = null;
private String doctypeSystem = null;
private String deferredSyntaxAllowedAsLiteralValue;
private boolean deferredSyntaxAllowedAsLiteral = false;
private String trimDirectiveWhitespacesValue;
private boolean trimDirectiveWhitespaces = false;
private boolean errorOnUndeclaredNamespace = false;
private boolean isJspPrefixHijacked;
// Set of all element and attribute prefixes used in this translation unit
private HashSet prefixes;
private boolean hasJspRoot = false;
private List includePrelude;
private List includeCoda;
private List pluginDcls; // Id's for tagplugin declarations
// Resource location path of the translation unit's top-level page
private String rootPath;
PageInfo(BeanRepository beanRepository, String jspFile) {
this.jspFile = jspFile;
this.beanRepository = beanRepository;
this.taglibsMap = new HashMap();
this.jspPrefixMapper = new HashMap();
this.xmlPrefixMapper = new HashMap>();
this.nonCustomTagPrefixMap = new HashMap();
this.imports = new ArrayList();
this.dependants = new ArrayList();
this.includePrelude = new ArrayList();
this.includeCoda = new ArrayList();
this.pluginDcls = new ArrayList();
this.prefixes = new HashSet();
// Enter standard imports
for(int i = 0; i < STANDARD_IMPORTS.length; i++)
imports.add(STANDARD_IMPORTS[i]);
}
/**
* Check if the plugin ID has been previously declared. Make a not
* that this Id is now declared.
* @return true if Id has been declared.
*/
public boolean isPluginDeclared(String id) {
if (pluginDcls.contains(id))
return true;
pluginDcls.add(id);
return false;
}
public void addImports(List imports) {
this.imports.addAll(imports);
}
public void addImport(String imp) {
this.imports.add(imp);
}
public List getImports() {
return imports;
}
public String getJspFile() {
return jspFile;
}
public void addDependant(String d) {
if (!dependants.contains(d) && !jspFile.equals(d))
dependants.add(d);
}
public List getDependants() {
return dependants;
}
public BeanRepository getBeanRepository() {
return beanRepository;
}
public int getMaxTagNesting() {
return maxTagNesting;
}
public void setMaxTagNesting(int maxTagNesting) {
this.maxTagNesting = maxTagNesting;
}
public void setScriptless(boolean s) {
scriptless = s;
}
public boolean isScriptless() {
return scriptless;
}
public void setScriptingInvalid(boolean s) {
scriptingInvalid = s;
}
public boolean isScriptingInvalid() {
return scriptingInvalid;
}
public List getIncludePrelude() {
return includePrelude;
}
public void setIncludePrelude(List prelude) {
includePrelude = prelude;
}
public List getIncludeCoda() {
return includeCoda;
}
public void setIncludeCoda(List coda) {
includeCoda = coda;
}
public void setHasJspRoot(boolean s) {
hasJspRoot = s;
}
public boolean hasJspRoot() {
return hasJspRoot;
}
public String getOmitXmlDecl() {
return omitXmlDecl;
}
public void setOmitXmlDecl(String omit) {
omitXmlDecl = omit;
}
public String getDoctypeName() {
return doctypeName;
}
public void setDoctypeName(String doctypeName) {
this.doctypeName = doctypeName;
}
public String getDoctypeSystem() {
return doctypeSystem;
}
public void setDoctypeSystem(String doctypeSystem) {
this.doctypeSystem = doctypeSystem;
}
public String getDoctypePublic() {
return doctypePublic;
}
public void setDoctypePublic(String doctypePublic) {
this.doctypePublic = doctypePublic;
}
/* Tag library and XML namespace management methods */
public void setIsJspPrefixHijacked(boolean isHijacked) {
isJspPrefixHijacked = isHijacked;
}
public boolean isJspPrefixHijacked() {
return isJspPrefixHijacked;
}
/*
* Adds the given prefix to the set of prefixes of this translation unit.
*
* @param prefix The prefix to add
*/
public void addPrefix(String prefix) {
prefixes.add(prefix);
}
/*
* Checks to see if this translation unit contains the given prefix.
*
* @param prefix The prefix to check
*
* @return true if this translation unit contains the given prefix, false
* otherwise
*/
public boolean containsPrefix(String prefix) {
return prefixes.contains(prefix);
}
/*
* Maps the given URI to the given tag library.
*
* @param uri The URI to map
* @param info The tag library to be associated with the given URI
*/
public void addTaglib(String uri, TagLibraryInfo info) {
taglibsMap.put(uri, info);
}
/*
* Gets the tag library corresponding to the given URI.
*
* @return Tag library corresponding to the given URI
*/
public TagLibraryInfo getTaglib(String uri) {
return taglibsMap.get(uri);
}
/*
* Gets the collection of tag libraries that are associated with a URI
*
* @return Collection of tag libraries that are associated with a URI
*/
public Collection getTaglibs() {
return taglibsMap.values();
}
/*
* Checks to see if the given URI is mapped to a tag library.
*
* @param uri The URI to map
*
* @return true if the given URI is mapped to a tag library, false
* otherwise
*/
public boolean hasTaglib(String uri) {
return taglibsMap.containsKey(uri);
}
/*
* Maps the given prefix to the given URI.
*
* @param prefix The prefix to map
* @param uri The URI to be associated with the given prefix
*/
public void addPrefixMapping(String prefix, String uri) {
jspPrefixMapper.put(prefix, uri);
}
/*
* Pushes the given URI onto the stack of URIs to which the given prefix
* is mapped.
*
* @param prefix The prefix whose stack of URIs is to be pushed
* @param uri The URI to be pushed onto the stack
*/
public void pushPrefixMapping(String prefix, String uri) {
LinkedList stack = xmlPrefixMapper.get(prefix);
if (stack == null) {
stack = new LinkedList();
xmlPrefixMapper.put(prefix, stack);
}
stack.addFirst(uri);
}
/*
* Removes the URI at the top of the stack of URIs to which the given
* prefix is mapped.
*
* @param prefix The prefix whose stack of URIs is to be popped
*/
public void popPrefixMapping(String prefix) {
LinkedList stack = xmlPrefixMapper.get(prefix);
if (stack == null || stack.size() == 0) {
// XXX throw new Exception("XXX");
}
stack.removeFirst();
}
/*
* Returns the URI to which the given prefix maps.
*
* @param prefix The prefix whose URI is sought
*
* @return The URI to which the given prefix maps
*/
public String getURI(String prefix) {
String uri = null;
LinkedList stack = xmlPrefixMapper.get(prefix);
if (stack == null || stack.size() == 0) {
uri = (String) jspPrefixMapper.get(prefix);
} else {
uri = (String) stack.getFirst();
}
return uri;
}
/* Page/Tag directive attributes */
/*
* language
*/
public void setLanguage(String value, Node n, ErrorDispatcher err,
boolean pagedir)
throws JasperException {
if (!"java".equalsIgnoreCase(value)) {
if (pagedir)
err.jspError(n, "jsp.error.page.language.nonjava");
else
err.jspError(n, "jsp.error.tag.language.nonjava");
}
language = value;
}
public String getLanguage(boolean useDefault) {
return (language == null && useDefault ? defaultLanguage : language);
}
public String getLanguage() {
return getLanguage(true);
}
/*
* extends
*/
public void setExtends(String value, Node.PageDirective n) {
xtends = value;
/*
* If page superclass is top level class (i.e. not in a package)
* explicitly import it. If this is not done, the compiler will assume
* the extended class is in the same pkg as the generated servlet.
*/
if (value.indexOf('.') < 0)
n.addImport(value);
}
/**
* Gets the value of the 'extends' page directive attribute.
*
* @param useDefault TRUE if the default
* (org.apache.jasper.runtime.HttpJspBase) should be returned if this
* attribute has not been set, FALSE otherwise
*
* @return The value of the 'extends' page directive attribute, or the
* default (org.apache.jasper.runtime.HttpJspBase) if this attribute has
* not been set and useDefault is TRUE
*/
public String getExtends(boolean useDefault) {
return (xtends == null && useDefault ? defaultExtends : xtends);
}
/**
* Gets the value of the 'extends' page directive attribute.
*
* @return The value of the 'extends' page directive attribute, or the
* default (org.apache.jasper.runtime.HttpJspBase) if this attribute has
* not been set
*/
public String getExtends() {
return getExtends(true);
}
/*
* contentType
*/
public void setContentType(String value) {
contentType = value;
}
public String getContentType() {
return contentType;
}
/*
* buffer
*/
public void setBufferValue(String value, Node n, ErrorDispatcher err)
throws JasperException {
if ("none".equalsIgnoreCase(value))
buffer = 0;
else {
if (value == null || !value.endsWith("kb"))
if (n == null)
err.jspError("jsp.error.jspproperty.invalid.buffer");
else
err.jspError(n, "jsp.error.page.invalid.buffer");
try {
Integer k = new Integer(value.substring(0, value.length()-2));
buffer = k.intValue() * 1024;
} catch (NumberFormatException e) {
if (n == null)
err.jspError("jsp.error.jspproperty.invalid.buffer");
else
err.jspError(n, "jsp.error.page.invalid.buffer");
}
}
bufferValue = value;
}
public String getBufferValue() {
return bufferValue;
}
public int getBuffer() {
return buffer;
}
public void setBuffer(int size) {
buffer = size;
}
/*
* session
*/
public void setSession(String value, Node n, ErrorDispatcher err)
throws JasperException {
if ("true".equalsIgnoreCase(value))
isSession = true;
else if ("false".equalsIgnoreCase(value))
isSession = false;
else
err.jspError(n, "jsp.error.page.invalid.session");
session = value;
}
public String getSession() {
return session;
}
public boolean isSession() {
return isSession;
}
/*
* autoFlush
*/
public void setAutoFlush(String value, Node n, ErrorDispatcher err)
throws JasperException {
if ("true".equalsIgnoreCase(value))
isAutoFlush = true;
else if ("false".equalsIgnoreCase(value))
isAutoFlush = false;
else
err.jspError(n, "jsp.error.autoFlush.invalid");
autoFlush = value;
}
public String getAutoFlush() {
return autoFlush;
}
public boolean isAutoFlush() {
return isAutoFlush;
}
/*
* isThreadSafe
*/
public void setIsThreadSafe(String value, Node n, ErrorDispatcher err)
throws JasperException {
if ("true".equalsIgnoreCase(value))
isThreadSafe = true;
else if ("false".equalsIgnoreCase(value))
isThreadSafe = false;
else
err.jspError(n, "jsp.error.page.invalid.isthreadsafe");
isThreadSafeValue = value;
}
public String getIsThreadSafe() {
return isThreadSafeValue;
}
public boolean isThreadSafe() {
return isThreadSafe;
}
/*
* info
*/
public void setInfo(String value) {
info = value;
}
public String getInfo() {
return info;
}
/*
* errorPage
*/
public void setErrorPage(String value) {
errorPage = value;
}
public String getErrorPage() {
return errorPage;
}
/*
* isErrorPage
*/
public void setIsErrorPage(String value, Node n, ErrorDispatcher err)
throws JasperException {
if ("true".equalsIgnoreCase(value))
isErrorPage = true;
else if ("false".equalsIgnoreCase(value))
isErrorPage = false;
else
err.jspError(n, "jsp.error.page.invalid.iserrorpage");
isErrorPageValue = value;
}
public String getIsErrorPage() {
return isErrorPageValue;
}
public boolean isErrorPage() {
return isErrorPage;
}
/*
* isELIgnored
*/
public void setIsELIgnored(String value, Node n, ErrorDispatcher err,
boolean pagedir)
throws JasperException {
if ("true".equalsIgnoreCase(value))
isELIgnored = true;
else if ("false".equalsIgnoreCase(value))
isELIgnored = false;
else {
if (pagedir)
err.jspError(n, "jsp.error.page.invalid.iselignored");
else
err.jspError(n, "jsp.error.tag.invalid.iselignored");
}
isELIgnoredValue = value;
}
public void setELIgnored(boolean s) {
isELIgnored = s;
}
public String getIsELIgnored() {
return isELIgnoredValue;
}
public boolean isELIgnored() {
return isELIgnored;
}
/*
* deferredSyntaxAllowedAsLiteral
*/
public void setDeferredSyntaxAllowedAsLiteral(String value, Node n,
ErrorDispatcher err, boolean pagedir)
throws JasperException {
if ("true".equalsIgnoreCase(value))
deferredSyntaxAllowedAsLiteral = true;
else if ("false".equalsIgnoreCase(value))
deferredSyntaxAllowedAsLiteral = false;
else {
if (pagedir)
err.jspError(n, "jsp.error.page.invalid.deferred");
else
err.jspError(n, "jsp.error.tag.invalid.deferred");
}
deferredSyntaxAllowedAsLiteralValue = value;
}
public void setDeferredSyntaxAllowedAsLiteral(boolean s) {
deferredSyntaxAllowedAsLiteral = s;
}
public String getDeferredSyntaxAllowedAsLiteral() {
return deferredSyntaxAllowedAsLiteralValue;
}
public boolean isDeferredSyntaxAllowedAsLiteral() {
return deferredSyntaxAllowedAsLiteral;
}
/*
* trimDirectiveWhitespaces
*/
public void setTrimDirectiveWhitespaces(String value, Node n,
ErrorDispatcher err, boolean pagedir)
throws JasperException {
if ("true".equalsIgnoreCase(value))
trimDirectiveWhitespaces = true;
else if ("false".equalsIgnoreCase(value))
trimDirectiveWhitespaces = false;
else {
if (pagedir)
err.jspError(n, "jsp.error.page.invalid.trim");
else
err.jspError(n, "jsp.error.tag.invalid.trim");
}
trimDirectiveWhitespacesValue = value;
}
public void setTrimDirectiveWhitespaces(boolean s) {
trimDirectiveWhitespaces = s;
}
public String getTrimDirectiveWhitespaces() {
return trimDirectiveWhitespacesValue;
}
public boolean isTrimDirectiveWhitespaces() {
return trimDirectiveWhitespaces;
}
public void setErrorOnUndeclaredNamespace(boolean s) {
errorOnUndeclaredNamespace = s;
}
public boolean errorOnUndeclaredNamespace() {
return this.errorOnUndeclaredNamespace;
}
public void putNonCustomTagPrefix(String prefix, Mark where) {
nonCustomTagPrefixMap.put(prefix, where);
}
public Mark getNonCustomTagPrefix(String prefix) {
return nonCustomTagPrefixMap.get(prefix);
}
/**
* Sets the resource location path of the translation unit's top-level
* page.
*
* @param rootPath Resource location path of the translation unit's
* top-level page
*/
void setRootPath(String rootPath) {
this.rootPath = rootPath;
}
/**
* Gets the resource location path of the translation unit's top-level
* page.
*
* @return Resource location path of the translation unit's top-level
* page
*/
String getRootPath() {
return rootPath;
}
}
