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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common
* Development and Distribution License("CDDL") (collectively, the
* "License"). You may not use this file except in compliance with the
* License. You can obtain a copy of the License at
* http://www.netbeans.org/cddl-gplv2.html
* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
* specific language governing permissions and limitations under the
* License. When distributing the software, include this License Header
* Notice in each file and include the License file at
* nbbuild/licenses/CDDL-GPL-2-CP. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the
* License Header, with the fields enclosed by brackets [] replaced by
* your own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* Contributor(s):
*
* The Original Software is NetBeans. The Initial Developer of the Original
* Software is Sun Microsystems, Inc. Portions Copyright 1997-2008 Sun
* Microsystems, Inc. All Rights Reserved.
*
* If you wish your version of this file to be governed by only the CDDL
* or only the GPL Version 2, indicate your decision by adding
* "[Contributor] elects to include this software in this distribution
* under the [CDDL or GPL Version 2] license." If you do not indicate a
* single choice of license, a recipient has the option to distribute
* your version of this file under either the CDDL, the GPL Version 2 or
* to extend the choice of license to its licensees as provided above.
* However, if you add GPL Version 2 code and therefore, elected the GPL
* Version 2 license, then the option applies only if the new code is
* made subject to such option by the copyright holder.
*/
package org.apache.jasper.compiler;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.jasper.JasperException;
import org.apache.jasper.JspCompilationContext;
/** Reflection stuff for org.apache.jasper.compiler.Compiler.
*
* @author Petr Jiricka
*/
public class CompilerHacks {
private static final Logger LOGGER = Logger.getLogger(CompilerHacks.class.getName());
// @GuardedBy(this)
private Compiler comp;
private final JspCompilationContext ctxt;
private static Field pageInfoF;
private static Field errDispatcherF;
static {
initMethodsAndFields();
}
/** Creates a new instance of CompilerHacks */
public CompilerHacks(JspCompilationContext ctxt) {
this.ctxt = ctxt;
}
static void initMethodsAndFields() {
try {
// pageInfo field
pageInfoF = Compiler.class.getDeclaredField("pageInfo"); // NOI18N
pageInfoF.setAccessible(true);
// errDispatcher field
errDispatcherF = Compiler.class.getDeclaredField("errDispatcher"); // NOI18N
errDispatcherF.setAccessible(true);
} catch (NoSuchFieldException e) {
LOGGER.log(Level.INFO, null, e);
}
}
private synchronized void setupCompiler() throws JasperException {
if (comp == null) {
comp = ctxt.createParser();
setErrDispatcherInCompiler(comp, new ErrorDispatcher(false));
comp.setPageInfo(new HackPageInfo(new BeanRepository(
ctxt.getClassLoader(), comp.getErrorDispatcher()), ctxt.getJspFile()));
}
}
Compiler getCompiler() throws JasperException {
setupCompiler();
return comp;
}
private static void setErrDispatcherInCompiler(Compiler c, ErrorDispatcher errDispatcher) throws JasperException {
try {
errDispatcherF.set(c, errDispatcher);
} catch (IllegalAccessException e) {
throw new JasperException(e);
}
}
/** Hacked PageInfo to get better XML directive data
*/
static final class HackPageInfo extends PageInfo {
/** Map of prefix -> uri. */
private final Map<String, String> approxXmlPrefixMapper = new HashMap<String, String>();
HackPageInfo(BeanRepository beanRepository, String jspFile) {
super(beanRepository, jspFile);
}
@Override
public void pushPrefixMapping(String prefix, String uri) {
super.pushPrefixMapping(prefix, uri);
if (uri != null) {
synchronized (approxXmlPrefixMapper) {
approxXmlPrefixMapper.put(prefix, uri);
}
}
}
Map<String, String> getApproxXmlPrefixMapper() {
synchronized (approxXmlPrefixMapper) {
return approxXmlPrefixMapper;
}
}
}
}
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