All Downloads are FREE. Search and download functionalities are using the official Maven repository.
Please wait. This can take some minutes ...
Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $
You can buy this project and download/modify it how often you want.
org.apache.jasper.runtime.JspFactoryImpl Maven / Gradle / Ivy
/*
* 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.runtime;
import javax.servlet.Servlet;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.jsp.JspFactory;
import javax.servlet.jsp.JspEngineInfo;
import javax.servlet.jsp.PageContext;
import java.security.AccessController;
import java.security.PrivilegedAction;
import org.apache.jasper.util.SimplePool;
import org.apache.jasper.logging.Logger;
/**
* Implementation of JspFactory from the spec. Helps create
* PageContext and other animals.
*
* @author Anil K. Vijendran
*/
public class JspFactoryImpl extends JspFactory {
protected class PrivilegedGetPageContext implements PrivilegedAction {
private JspFactoryImpl factory;
private Servlet servlet;
private ServletRequest request;
private ServletResponse response;
private String errorPageURL;
private boolean needsSession;
private int bufferSize;
private boolean autoflush;
PrivilegedGetPageContext(JspFactoryImpl factory,
Servlet servlet,
ServletRequest request,
ServletResponse response,
String errorPageURL,
boolean needsSession, int bufferSize,
boolean autoflush)
{
this.factory = factory;
this.servlet = servlet;
this.request = request;
this.response = response;
this.errorPageURL = errorPageURL;
this.needsSession = needsSession;
this.bufferSize = bufferSize;
this.autoflush = autoflush;
}
public Object run() {
return factory.internalGetPageContext(servlet,request,
response,errorPageURL,
needsSession,bufferSize,autoflush);
}
}
protected class PrivilegedReleasePageContext implements PrivilegedAction {
private JspFactoryImpl factory;
private PageContext pageContext;
PrivilegedReleasePageContext(JspFactoryImpl factory,
PageContext pageContext)
{
this.factory = factory;
this.pageContext = pageContext;
}
public Object run() {
factory.internalReleasePageContext(pageContext);
return null;
}
}
private SimplePool pool=new SimplePool( 100 );
private static final boolean usePool=true;
Logger.Helper loghelper = new Logger.Helper("JASPER_LOG", "JspFactoryImpl");
public PageContext getPageContext(Servlet servlet, ServletRequest request,
ServletResponse response,
String errorPageURL,
boolean needsSession, int bufferSize,
boolean autoflush)
{
if( System.getSecurityManager() != null ) {
PrivilegedGetPageContext dp = new PrivilegedGetPageContext(
(JspFactoryImpl)this,servlet,request,response,errorPageURL,
needsSession,bufferSize,autoflush);
return (PageContext)AccessController.doPrivileged(dp);
}
return internalGetPageContext(servlet,request,response,errorPageURL,
needsSession,bufferSize,autoflush);
}
protected PageContext internalGetPageContext(Servlet servlet, ServletRequest request,
ServletResponse response,
String errorPageURL,
boolean needsSession, int bufferSize,
boolean autoflush)
{
try {
PageContext pc;
if( usePool ) {
pc=(PageContextImpl)pool.get();
if( pc == null ) {
pc= new PageContextImpl(this);
}
} else {
pc = new PageContextImpl(this);
}
pc.initialize(servlet, request, response, errorPageURL,
needsSession, bufferSize, autoflush);
return pc;
} catch (Throwable ex) {
/* FIXME: need to do something reasonable here!! */
loghelper.log("Exception initializing page context", ex);
return null;
}
}
public void releasePageContext(PageContext pc) {
if( pc == null )
return;
if( System.getSecurityManager() != null ) {
PrivilegedReleasePageContext dp = new PrivilegedReleasePageContext(
(JspFactoryImpl)this,pc);
AccessController.doPrivileged(dp);
} else {
internalReleasePageContext(pc);
}
}
private void internalReleasePageContext(PageContext pc) {
pc.release();
if( usePool) {
pool.put( pc );
}
}
static class SunJspEngineInfo extends JspEngineInfo {
final static String SpecificationVersion = "1.2";
public String getSpecificationVersion() {
return SpecificationVersion;
}
}
static JspEngineInfo info = new SunJspEngineInfo();
public JspEngineInfo getEngineInfo() {
return info;
}
}