/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2002 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "Apache Cocoon" and "Apache Software Foundation" must not be
used to endorse or promote products derived from this software without
prior written permission. For written permission, please contact
apache@apache.org.
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation and was originally created by
Stefano Mazzocchi <stefano@apache.org>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.cocoon.components.language.markup.xsp;
import org.apache.avalon.framework.activity.Initializable;
import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.parameters.Parameters;
import org.apache.cocoon.ProcessingException;
import org.apache.cocoon.environment.SourceResolver;
import org.apache.cocoon.environment.Session;
import org.apache.cocoon.xml.XMLizable;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.ImporterTopLevel;
import org.mozilla.javascript.JavaScriptException;
import org.mozilla.javascript.Script;
import org.mozilla.javascript.Scriptable;
import org.w3c.dom.Node;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributesImpl;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Collection;
import java.util.Date;
import java.util.Locale;
import java.util.Map;
import java.text.ParseException;
import java.text.DateFormat;
/**
* Class representing interpreted XSP-generated
* <code>ServerPagesGenerator</code> programs
* written in Javascript language
*
* @author <a href="mailto:vgritsenko@apache.org">Vadim Gritsenko</a>
* @version CVS $Id: JSGenerator.java,v 1.8 2002/03/08 04:08:53 vgritsenko Exp $
*/
public class JSGenerator extends XSPGenerator
implements Configurable, Initializable {
/**
* Javascript source file
*/
private File file;
private Scriptable global;
// FIXME: Use Store to cache compiled scripts
private Script script;
private Exception compileError;
public void configure(Configuration configuration) throws ConfigurationException {
this.file = new File(configuration.getChild("file").getValue());
Configuration[] dependencies = configuration.getChildren("dependency");
this.dependencies = new File[dependencies.length];
for (int i = 0; i < dependencies.length; i ++) {
this.dependencies[i] = new File(dependencies[i].getValue());
}
}
/**
* Determines whether this generator's source files have changed
*
* @return Whether any of the files this generator depends on has changed
* since it was created
*/
public boolean modifiedSince(long date) {
if (this.file.lastModified() < date) {
return true;
}
for (int i = 0; i < dependencies.length; i++) {
if (this.file.lastModified() < dependencies[i].lastModified()) {
return true;
}
}
return false;
}
public void initialize() throws Exception {
Context context = Context.enter();
try {
global = new ImporterTopLevel(context);
global.put("page", global, Context.toObject(this, global));
global.put("logger", global, Context.toObject(getLogger(), global));
global.put("xspAttr", global, Context.toObject(new AttributesImpl(), global));
context.setOptimizationLevel(-1);
if (getLogger().isDebugEnabled()) {
getLogger().debug("Compiling script " + file);
}
script = context.compileReader(global, new FileReader(file), file.toString(), 1, null);
} catch (Exception e) {
compileError = e;
} finally {
Context.exit();
}
}
public void setup(SourceResolver resolver, Map objectModel, String src, Parameters par)
throws ProcessingException, SAXException, IOException {
super.setup(resolver, objectModel, src, par);
if (compileError != null) {
throw new ProcessingException("Failed to compile script", compileError);
}
global.put("objectModel", global, Context.toObject(this.objectModel, global));
global.put("request", global, Context.toObject(this.request, global));
global.put("response", global, Context.toObject(this.response, global));
global.put("context", global, Context.toObject(this.context, global));
global.put("resolver", global, Context.toObject(this.resolver, global));
global.put("parameters", global, Context.toObject(this.parameters, global));
}
public void generate() throws IOException, ProcessingException {
Context context = Context.enter();
try {
global.put("contentHandler", global, Context.toObject(this.contentHandler, global));
context.setOptimizationLevel(-1);
if (getLogger().isDebugEnabled()) {
getLogger().debug("Executing script " + file);
}
script.exec(context, global);
} catch (JavaScriptException e) {
throw new ProcessingException("generate: Got Javascript exception", e);
} finally {
Context.exit();
}
}
public void recycle() {
global.delete("contentHandler");
global.delete("objectModel");
global.delete("request");
global.delete("response");
global.delete("context");
global.delete("resolver");
global.delete("parameters");
super.recycle();
}
public void dispose() {
global.delete("page");
global.delete("logger");
global.delete("xspAttr");
this.global = null;
this.script = null;
this.compileError = null;
super.dispose();
}
// XSPRequestHelper
public void getLocale() throws SAXException {
XSPRequestHelper.getLocale(this.objectModel, this.contentHandler);
}
public Locale[] getLocalesAsArray() {
return XSPRequestHelper.getLocales(this.objectModel);
}
public void getLocalesAsXML() throws SAXException {
XSPRequestHelper.getLocale(this.objectModel, this.contentHandler);
}
public String getParameter(String name, String defaultValue) {
return XSPRequestHelper.getParameter(this.objectModel, name, defaultValue);
}
public String getParameter(String name, String defaultValue,
String form_encoding, String container_encoding) {
return XSPRequestHelper.getParameter(this.objectModel, name, defaultValue,
form_encoding, container_encoding);
}
public void getParameterAsXML(String name, String defaultValue,
String form_encoding, String container_encoding)
throws SAXException {
XSPRequestHelper.getParameter(this.objectModel, this.contentHandler, name, defaultValue,
form_encoding, container_encoding);
}
public void getParameterValuesAsXML(String name, String form_encoding,
String container_encoding)
throws SAXException {
XSPRequestHelper.getParameterValues(this.objectModel, this.contentHandler,
name, form_encoding, container_encoding);
}
public String[] getParameterValues(String name,
String form_encoding,
String container_encoding) {
return XSPRequestHelper.getParameterValues(this.objectModel,
name, form_encoding, container_encoding);
}
public String[] getParameterNames() {
return XSPRequestHelper.getParameterNames(this.objectModel);
}
public void getParameterNamesAsXML() throws SAXException {
XSPRequestHelper.getParameterNames(this.objectModel, this.contentHandler);
}
public void getHeaderNamesAsXML() throws SAXException {
XSPRequestHelper.getHeaderNames(this.objectModel, this.contentHandler);
}
public String[] getHeaderNames() {
return XSPRequestHelper.getHeaderNames(this.objectModel);
}
public String[] getHeaders(String name) {
return XSPRequestHelper.getHeaders(this.objectModel, name);
}
public void getHeadersAsXML(String name)
throws SAXException {
XSPRequestHelper.getHeaders(this.objectModel, name, this.contentHandler);
}
public Date getDateHeader(String name) {
return XSPRequestHelper.getDateHeader(this.objectModel, name);
}
public String getDateHeader(String name, String format) {
return XSPRequestHelper.getDateHeader(this.objectModel, name, format);
}
public void getAttributeNames(ContentHandler contentHandler)
throws SAXException {
XSPRequestHelper.getAttributeNames(this.objectModel, contentHandler);
}
public String[] getAttributeNames() {
return XSPRequestHelper.getAttributeNames(this.objectModel);
}
public String getRequestedURL() {
return XSPRequestHelper.getRequestedURL(this.objectModel);
}
// XSPResponseHelper
public void responseGetLocale()
throws SAXException {
XSPResponseHelper.getLocale(this.response, this.contentHandler);
}
public void addDateHeader(String name, long date) {
XSPResponseHelper.addDateHeader(this.response, name, date);
}
public void addDateHeader(String name, Date date) {
XSPResponseHelper.addDateHeader(this.response, name, date);
}
public void addDateHeader(String name, String date) throws ParseException {
XSPResponseHelper.addDateHeader(this.response, name, date);
}
public void addDateHeader(String name, String date, String format) throws ParseException {
XSPResponseHelper.addDateHeader(this.response, name, date, format);
}
public void addDateHeader(String name, String date, DateFormat format) throws ParseException {
XSPResponseHelper.addDateHeader(this.response, name, date, format);
}
public void setDateHeader(String name, long date) {
XSPResponseHelper.setDateHeader(this.response, name, date);
}
public void setDateHeader(String name, Date date) {
XSPResponseHelper.setDateHeader(this.response, name, date);
}
public void setDateHeader(String name, String date) throws ParseException {
XSPResponseHelper.setDateHeader(this.response, name, date);
}
public void setDateHeader(String name, String date, String format) throws ParseException {
XSPResponseHelper.setDateHeader(this.response, name, date, format);
}
public void setDateHeader(String name, String date, DateFormat format) throws ParseException {
XSPResponseHelper.setDateHeader(this.response, name, date, format);
}
// XSPSessionHelper
public Object getSessionAttribute(Session session, String name, Object defaultValue) {
return XSPSessionHelper.getSessionAttribute(session, name, defaultValue);
}
public String[] getSessionAttributeNames(Session session) {
Collection c = XSPSessionHelper.getSessionAttributeNames(session);
return (String[])c.toArray(new String[c.size()]);
}
}