CommandLineAppContext.java

/*
 * Copyright 2011 the original author or authors.
 *
 * 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.trigonic.utils.spring.cmdline;

import org.springframework.beans.factory.support.DefaultListableBeanFactory;

import com.trigonic.utils.spring.context.XmlResourceApplicationContext;

public class CommandLineAppContext extends XmlResourceApplicationContext {
    private final CommandLineBeanDefinitionReader reader;

    public CommandLineAppContext(Object... resources) {
        super(resources);
        reader = new CommandLineBeanDefinitionReader((DefaultListableBeanFactory) getBeanFactory());
    }
    
    public void parse(Class<?> beanClass, String[] args) {
        reader.parse(beanClass, args);
    }
    
    public <T> T parseAndGet(Class<T> beanClass, String[] args) {
        parse(beanClass, args);
        return getBean(beanClass);
    }
    
    public <T extends Runnable> void run(Class<T> beanClass, String[] args) {
        try {
            parseAndGet(beanClass, args).run();
        } catch (UsageException e) {
            e.printUsage();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            close();
        }
    }
}