platform.scripting/src/main/java/org/apache/clerezza/platform/scripting/JRubyScriptEngineFactoryWrapper.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.clerezza.platform.scripting;

import java.util.List;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineFactory;

/**
 *
 * @author hasan
 */
public class JRubyScriptEngineFactoryWrapper implements ScriptEngineFactory {

    private ScriptEngineFactory wrappedFactory;

    public JRubyScriptEngineFactoryWrapper(ScriptEngineFactory wrappedFactory) {
        this.wrappedFactory = wrappedFactory;
    }

    @Override
    public String getEngineName() {
        return wrappedFactory.getEngineName();
    }

    @Override
    public String getEngineVersion() {
        return wrappedFactory.getEngineVersion();
    }

    @Override
    public List<String> getExtensions() {
        return wrappedFactory.getExtensions();
    }

    @Override
    public List<String> getMimeTypes() {
        return wrappedFactory.getMimeTypes();
    }

    @Override
    public List<String> getNames() {
        return wrappedFactory.getNames();
    }

    @Override
    public String getLanguageName() {
        return wrappedFactory.getLanguageName();
    }

    @Override
    public String getLanguageVersion() {
        return wrappedFactory.getLanguageVersion();
    }

    @Override
    public Object getParameter(String key) {
        return wrappedFactory.getParameter(key);
    }

    @Override
    public String getMethodCallSyntax(String obj, String m, String... args) {
        return wrappedFactory.getMethodCallSyntax(obj, m, args);
    }

    @Override
    public String getOutputStatement(String toDisplay) {
        return wrappedFactory.getOutputStatement(toDisplay);
    }

    @Override
    public String getProgram(String... statements) {
        return wrappedFactory.getProgram(statements);
    }

    @Override
    public ScriptEngine getScriptEngine() {
        ClassLoader oldClassLoader = Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader(null);
        ScriptEngine engine = wrappedFactory.getScriptEngine();
        Thread.currentThread().setContextClassLoader(oldClassLoader);
        return engine;
    }
}