sxcfilter.java

来自「提供ESB 应用mule源代码 提供ESB 应用mule源代码」· Java 代码 · 共 71 行

/*
 * $Id: SxcFilter.java 12763 2008-09-26 22:35:25Z aperepel $
 * --------------------------------------------------------------------------------------
 * Copyright (c) MuleSource, Inc.  All rights reserved.  http://www.mulesource.com
 *
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */

package org.mule.module.sxc;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.mule.api.MuleMessage;
import org.mule.api.routing.filter.Filter;

import com.envoisolutions.sxc.xpath.XPathBuilder;

public class SxcFilter implements Filter
{
    protected transient Log logger = LogFactory.getLog(getClass());

    private String pattern;
    
    public SxcFilter()
    {
        super();
    }

    public SxcFilter(String pattern)
    {
        this.pattern = pattern;
    }

    public boolean accept(MuleMessage obj)
    {
         Object accept = obj.getProperty(toString());
         
         if (accept == null && SxcFilteringOutboundRouter.getCurrentMessage() == null) 
         {
             return false;
         }
         else if (accept == null)
         {
             throw new UndefinedMatchException();
         }
         
         return ((Boolean) accept).booleanValue();
    }

    /** @return XPath expression */
    public String getPattern()
    {
        return pattern;
    }

    /** @param pattern The XPath expression */
    public void setPattern(String pattern)
    {
        this.pattern = pattern;
    }

    public void addEventHandler(SxcFilteringOutboundRouter router, XPathBuilder builder)
    {    
        builder.listen(pattern, new FilterEventHandler(router, this));
    }
}