com.jbrisbin.vpc.jobsched.GroovyPluginManager.java Source code

Introduction

Here is the source code for com.jbrisbin.vpc.jobsched.GroovyPluginManager.java

Source

/*
 * Copyright 2010 by J. Brisbin <jon@jbrisbin.com>
 *
 * Licensed 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 com.jbrisbin.vpc.jobsched;

import com.jbrisbin.vpc.jobsched.util.BeanClosure;
import groovy.lang.Binding;
import groovy.lang.Script;
import groovy.util.GroovyScriptEngine;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

/**
 * @author Jon Brisbin <jon@jbrisbin.com>
 */
public class GroovyPluginManager implements PluginManager, ApplicationContextAware {

    protected final Logger log = LoggerFactory.getLogger(getClass());

    protected ApplicationContext appCtx;
    @Autowired
    protected GroovyScriptEngine groovyScriptEngine;
    @Autowired
    protected BeanClosure beanClosure;
    @Autowired
    protected RabbitTemplate rabbitTemplate;

    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.appCtx = applicationContext;
    }

    public GroovyScriptEngine getGroovyScriptEngine() {
        return groovyScriptEngine;
    }

    public void setGroovyScriptEngine(GroovyScriptEngine groovyScriptEngine) {
        this.groovyScriptEngine = groovyScriptEngine;
    }

    public BeanClosure getBeanClosure() {
        return beanClosure;
    }

    public void setBeanClosure(BeanClosure beanClosure) {
        this.beanClosure = beanClosure;
    }

    public void init() {

    }

    public Plugin getPlugin(String key) {
        Script script = null;
        try {
            Binding b = new Binding();
            b.setVariable("bean", beanClosure);
            script = groovyScriptEngine.createScript(key, b);
            script.setProperty("log", LoggerFactory.getLogger("plugins"));
        } catch (Exception e) {
            log.error(e.getMessage(), e);
            return null;
        }
        return (null != script ? new GroovyPlugin(script) : null);
    }

    public void close() {
    }

}