/*
* Copyright (c) 1998-2010 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.quercus.script;
import com.caucho.quercus.QuercusContext;
import javax.script.Bindings;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineFactory;
import javax.script.SimpleBindings;
import java.util.ArrayList;
import java.util.List;
import java.lang.reflect.*;
/**
* Script engine factory
*/
public class QuercusScriptEngineFactory implements ScriptEngineFactory
{
private Bindings _globalBindings = new SimpleBindings();
/**
* Returns the full name of the ScriptEngine.
*/
public String getEngineName()
{
return "Caucho Quercus Script Engine";
}
/**
* Returns the version of the ScriptEngine.
*/
public String getEngineVersion()
{
try {
//return com.caucho.Version.VERSION;
Class cl = Class.forName("com.caucho.Version");
Field version = cl.getField("VERSION");
return (String) version.get(null);
} catch (Exception e) {
}
return "Resin/3.1.0";
}
/**
* Returns an array of filename extensions normally used by this
* language.
*/
public List<String> getExtensions()
{
ArrayList<String> ext = new ArrayList<String>();
ext.add("php");
return ext;
}
/**
* Returns the mime-types for scripts for the engine.
*/
public List<String> getMimeTypes()
{
return new ArrayList<String>();
}
/**
* Returns the short names for the scripts for the engine,
* e.g. {"javascript", "rhino"}
*/
public List<String> getNames()
{
ArrayList<String> names = new ArrayList<String>();
names.add("quercus");
names.add("php");
return names;
}
/**
* Returns the name of the supported language.
*/
public String getLanguageName()
{
return "php";
}
/**
* Returns the version of the scripting language.
*/
public String getLanguageVersion()
{
return "5.0.4";
}
/**
* Returns engine-specific properties.
*
* Predefined keys include:
* <ul>
* <li>THREADING
* </ul>
*/
public Object getParameter(String key)
{
if ("THREADING".equals(key))
return "THREAD-ISOLATED";
else if (ScriptEngine.ENGINE.equals(key))
return getEngineName();
else if (ScriptEngine.ENGINE_VERSION.equals(key))
return getEngineVersion();
else if (ScriptEngine.NAME.equals(key))
return getEngineName();
else if (ScriptEngine.LANGUAGE.equals(key))
return getLanguageName();
else if (ScriptEngine.LANGUAGE_VERSION.equals(key))
return getLanguageVersion();
else
return null;
}
/**
* Returns a string which could invoke a method of a Java object.
*/
public String getMethodCallSyntax(String obj, String m, String []args)
{
StringBuilder sb = new StringBuilder();
sb.append("$");
sb.append(obj);
sb.append("->");
sb.append(m);
sb.append("(");
for (int i = 0; i < args.length; i++) {
if (i != 0)
sb.append(", ");
sb.append("$");
sb.append(args[i]);
}
sb.append(");");
return sb.toString();
}
/**
* Returns a string which generates an output statement.
*/
public String getOutputStatement(String toDisplay)
{
return "echo(\'" + toDisplay.replace("\'", "\\\'") + "\');";
}
/**
* Returns a string which generates a valid program.
*/
public String getProgram(String []statements)
{
StringBuilder sb = new StringBuilder();
sb.append("<?php\n");
for (int i = 0; i < statements.length; i++) {
sb.append(statements[i]);
sb.append(";\n");
}
sb.append("?>\n");
return sb.toString();
}
/**
* Returns a ScriptEngine instance.
*/
public ScriptEngine getScriptEngine()
{
return new QuercusScriptEngine(this, createQuercus());
}
/**
* Creates a new Quercus, which can be overridden for security issues.
*/
protected QuercusContext createQuercus()
{
QuercusContext quercus = new QuercusContext();
quercus.init();
return quercus;
}
public String toString()
{
return "QuercusScriptEngineFactory[]";
}
}