genericejbeventlistenerlocal.java

intra_mart是日本NDD公司开发的著名企业应用解决方案中间件。集成了J2ee服务器

/*
 * GenericEJBEventListnerLocal.java
 */
package jp.co.intra_mart.framework.base.event;

import javax.ejb.EJBException;

import jp.co.intra_mart.framework.base.event.EJBEventListener;
import jp.co.intra_mart.framework.base.event.Event;
import jp.co.intra_mart.framework.base.event.EventResult;
import jp.co.intra_mart.framework.system.exception.ApplicationException;
import jp.co.intra_mart.framework.system.exception.SystemException;

/**
 * 儘乕僇儖EJB傪棙梡偡傞斈梡揑側僀儀儞僩儕僗僫偱偡丅
 *
 * @version 1.0
 * @since 5.0
 */
public class GenericEJBEventListenerLocal extends EJBEventListener {

    /**
     * 儂乕儉僀儞僞僼僃乕僗GenericEJBEventListenerAgentHome
     */
    private GenericEJBEventListenerAgentLocalHome home;

    /**
     * 張棟傪峴偆StandardEventLinstener偺僋儔僗柤
     */
    private String listenerName;

    /**
     * GenericEJBEventListnerLocal傪怴婯偵惗惉偟傑偡丅
     *
     * @param home 儂乕儉僀儞僞僼僃乕僗
     * @param listenerName 幚嵺偵張棟傪峴偆StandardEventListener偺僋儔僗柤
     */
    public GenericEJBEventListenerLocal(
    		GenericEJBEventListenerAgentLocalHome home,
        String listenerName) {
        super();
        this.home = home;
        this.listenerName = listenerName;
    }

    /**
     * 張棟傪幚峴偟傑偡丅
     * 僀儀儞僩傪尦偵張棟傪幚峴偟傑偡丅
     * 偙偺僀儞僞僼僃乕僗傪幚憰偡傞偡傋偰偺僋儔僗偼丄
     * 偡傋偰偺僀儀儞僩僩儕僈傪幚峴偟偨屻偵張棟傪
     * 幚峴偡傞傛偆偵愝寁偝傟偰偄傞昁梫偑偁傝傑偡丅
     *
     * @param event 僀儀儞僩
     * @return 僀儀儞僩張棟寢壥
     * @throws ApplicationException 僀儀儞僩張棟帪偵傾僾儕働乕僔儑儞椺奜偑敪惗
     * @throws SystemException 僔僗僥儉張棟帪偵傾僾儕働乕僔儑儞椺奜偑敪惗
     */
    public EventResult execute(Event event)
        throws SystemException, ApplicationException {
    	GenericEJBEventListenerAgentLocal agent = null;
        EventResult result = null;

        // 儘乕僇儖僀儞僞僼僃乕僗偺庢摼
        try {
            agent = this.home.create();
        } catch (Exception e) {
            throw new SystemException(e.getMessage(), e);
        }

        // 張棟偺幚峴
        try {
            result = agent.execute(event, this.listenerName);
        } catch (ApplicationException e) {
            throw e;
        } catch (SystemException e) {
            throw e;
        } catch (EJBException e) {
            Exception ex = e.getCausedByException();
            if (ex == null) {
                throw new SystemException(e.getMessage(), e);
            } else if (ex instanceof SystemException) {
                throw (SystemException)ex;
            } else if (ex instanceof ApplicationException) {
                throw (ApplicationException)ex;
            } else {
                throw new SystemException(ex.getMessage(), ex);
            }
        }

        return result;
    }
}