nl.tue.gale.event.LocalFactory.java Source code

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Here is the source code for nl.tue.gale.event.LocalFactory.java

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/*
    
   This file is part of GALE (Generic Adaptation Language and Engine).
    
GALE is free software: you can redistribute it and/or modify it under the 
terms of the GNU Lesser General Public License as published by the Free 
Software Foundation, either version 3 of the License, or (at your option) 
any later version.
    
GALE 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 Lesser General Public License for 
more details.
    
You should have received a copy of the GNU Lesser General Public License
along with GALE. If not, see <http://www.gnu.org/licenses/>.
    
 */
/**
 * LocalFactory.java
 * Last modified: $Date$
 * In revision:   $Revision$
 * Modified by:   $Author: dsmits $
 *
 * Copyright (c) 2008-2011 Eindhoven University of Technology.
 * All Rights Reserved.
 *
 * This software is proprietary information of the Eindhoven University
 * of Technology. It may be used according to the GNU LGPL license.
 */
package nl.tue.gale.event;

import java.net.URL;
import java.util.Map;

import nl.tue.gale.common.GaleUtil;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

public class LocalFactory implements EventListenerFactory, ApplicationContextAware {
    private ApplicationContext ac = null;

    private String postfix = "";

    public void setPostfix(String postfix) {
        this.postfix = postfix;
    }

    /**
     * Returns a <code>EventListener</code> proxy to the webservice running on
     * the specified <code>url</code>. The <code>url</code> should specify the
     * actual location of the webservice and some additional parameters.
     * 
     * Two additional parameters are required in the query string of the
     * <code>url</code>, 'service' and 'port'. They should refer to the name of
     * the service and the name of the port respectively. The wsdl will be
     * assumed to be located at the specified <code>url</code> without query
     * string and adding '?wsdl'.
     * 
     * @param url
     *            the <code>URL</code> specifying the location of the webservice
     * @return the <code>EventListener</code> proxy to the specified webservice
     */
    public EventListener getListener(URL url) {
        try {
            Map<String, String> params = GaleUtil.getQueryParameters(url.getQuery());
            return (EventListener) ac.getBean(params.get("service").toLowerCase() + postfix);
        } catch (Exception e) {
            throw new IllegalArgumentException(
                    "unable to create EventListener for '" + url + "': " + e.getMessage(), e);
        }
    }

    @Override
    public void setApplicationContext(ApplicationContext ac) throws BeansException {
        this.ac = ac;
    }
}