Java Script Engine getEngine(String engineName)

Description

get Engine

License

Open Source License

Declaration

public static final ScriptEngine getEngine(String engineName) 

Method Source Code

//package com.java2s;
/*/*ww w.  ja v a 2 s.  co  m*/
 * #%L
 * JSR223 Profile Activator Maven Extension
 * %%
 * Copyright (C) 2015 RRQ
 * %%
 * 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/gpl-3.0.html>.
 * #L%
 */

import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;

public class Main {

    public static final ScriptEngine getEngine(String engineName) {
        if (engineName != null) {
            ScriptEngineManager factory = new ScriptEngineManager();
            // We'll try to get the engine by name (i.e. JavaScript)
            ScriptEngine engine = factory.getEngineByName(engineName);
            if (engine != null) {
                return engine;
            }
            // We'll try to get the engine by extension (i.e. javascript)
            engine = factory.getEngineByExtension(engineName);
            if (engine != null) {
                return engine;
            }
            // We'll try to get the engine by MimeType (i.e. application/javascript)
            return factory.getEngineByMimeType(engineName);
        }
        // We've just not found any engine matching "engine", so we return null
        return null;
    }
}

Related

1. evaluateScriptResource(ScriptEngine engine, String resource)
2. getAppleScriptEngine()
3. getAvailableEngineGroups()
4. getDefaultScriptEngineManager()
5. getEngine()
6. getScriptEngine()
7. getScriptEngine(final ClassLoader loader, final String... args)
8. getScriptEngineManager()
9. getStringOrExcept(ScriptEngine e, String vname)