/*
*
* This is a simple Content Management System (CMS)
* Copyright (C) 2010 Imran M Yousuf (imyousuf@smartitengineering.com)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.smartitengineering.cms.spi.impl.content.template;
import com.smartitengineering.cms.api.exception.InvalidTemplateException;
import org.apache.commons.codec.binary.StringUtils;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.Script;
import org.mozilla.javascript.Scriptable;
/**
*
* @author imyousuf
*/
public class JavascriptObjectFactory {
private JavascriptObjectFactory() {
}
private static final JavascriptObjectFactory OBJECT_FACTORY = new JavascriptObjectFactory();
public static JavascriptObjectFactory getInstance() {
return OBJECT_FACTORY;
}
public synchronized <T> T getObjectFromScript(byte[] data, Class<? extends T> clazz) throws InvalidTemplateException {
try {
String script = StringUtils.newStringUtf8(data);
final Context context = Context.enter();
final Scriptable scriptable = context.initStandardObjects();
Script myScript = context.compileString(script, "source", 0, null);
Object object = myScript.exec(context, scriptable);
T generator = (T) Context.jsToJava(object, clazz);
return generator;
}
catch (Exception ex) {
ex.printStackTrace();
throw new InvalidTemplateException(ex);
}
}
}