coreevents.java

Sequoia ERP是一个真正的企业级开源ERP解决方案。它提供的模块包括：电子商务应用(e-commerce), POS系统(point of sales),知识管理,存货与仓库管理

/*
 * $Id: CoreEvents.java 5462 2005-08-05 18:35:48Z jonesde $
 *
 * Copyright (c) 2001-2003 The Open For Business Project - www.ofbiz.org
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
 * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */
package org.ofbiz.webapp.event;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.sql.Timestamp;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Locale;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.ofbiz.base.util.Debug;
import org.ofbiz.base.util.UtilHttp;
import org.ofbiz.base.util.UtilProperties;
import org.ofbiz.base.util.UtilValidate;
import org.ofbiz.webapp.control.RequestHandler;
import org.ofbiz.entity.GenericDelegator;
import org.ofbiz.entity.GenericValue;
import org.ofbiz.security.Security;
import org.ofbiz.service.DispatchContext;
import org.ofbiz.service.GenericServiceException;
import org.ofbiz.service.LocalDispatcher;
import org.ofbiz.service.ModelService;
import org.ofbiz.service.ServiceDispatcher;
import org.ofbiz.service.WebAppDispatcher;
import org.ofbiz.service.calendar.RecurrenceRule;

/**
 * CoreEvents - WebApp Events Related To Framework pieces
 *
 * @author     <a href="mailto:[e-mail]">Andy Zeneski</a>
 * @version    $Rev: 5462 $
 * @since      2.0
 */
public class CoreEvents {
    
    public static final String module = CoreEvents.class.getName();
    public static final String err_resource = "WebappUiLabels";

    /**
     * Return success event. Used as a place holder for events.
     * @param request HttpServletRequest
     * @param response HttpServletResponse
     * @return Response code string
     */
    public static String returnSuccess(HttpServletRequest request, HttpServletResponse response) {
        return "success";
    }

    /**
     * Return error event. Used as a place holder for events.
     * @param request HttpServletRequest
     * @param response HttpServletResponse
     * @return Response code string
     */
    public static String returnError(HttpServletRequest request, HttpServletResponse response) {
        return "error";
    }

    /**
     * Return null event. Used as a place holder for events.
     * @param request HttpServletRequest
     * @param response HttpServletResponse
     * @return Response code string
     */
    public static String returnNull(HttpServletRequest request, HttpServletResponse response) {
        return null;
    }

    /**
     * Change delegator event. Changes the delegator for the current session
     * @param request HttpServletRequest
     * @param response HttpServletResponse
     * @return Response code string
     */
    public static String changeDelegator(HttpServletRequest request, HttpServletResponse response) {
        String delegatorName = request.getParameter("delegator");
        Security security = (Security) request.getAttribute("security");
        Locale locale = UtilHttp.getLocale(request);

        if (!security.hasPermission("ENTITY_MAINT", request.getSession())) {
            String errMsg = UtilProperties.getMessage(CoreEvents.err_resource, "coreEvents.not_authorized_use_fct", locale);
            request.setAttribute("_ERROR_MESSAGE_", "<li>" + errMsg);
            return "error";
        }
        if (delegatorName == null) {
            String errMsg = UtilProperties.getMessage(CoreEvents.err_resource, "coreEvents.delegator_not_passed", locale);
            request.setAttribute("_ERROR_MESSAGE_", "<li>" + errMsg);
            return "error";
        }

        GenericDelegator delegator = GenericDelegator.getGenericDelegator(delegatorName);

        if (delegator == null) {
            String errMsg = UtilProperties.getMessage(CoreEvents.err_resource, "coreEvents.no_delegator_name_defined", locale);
            request.setAttribute("_ERROR_MESSAGE_", "<li>" + errMsg);
            return "error";
        }

        // now change the dispatcher to use this delegator
        LocalDispatcher dispatcher = (LocalDispatcher) request.getAttribute("dispatcher");
        DispatchContext dctx = dispatcher.getDispatchContext();
        String dispatcherName = dispatcher.getName();

        if (dispatcherName == null) {
            String errMsg = UtilProperties.getMessage(CoreEvents.err_resource, "coreEvents.dispatcher_name_null", locale);
            request.setAttribute("_ERROR_MESSAGE_", "<li>" + errMsg);
            return "error";
        }
        if (dctx == null) {
            String errMsg = UtilProperties.getMessage(CoreEvents.err_resource, "coreEvents.dispatcher_context_null", locale);
            request.setAttribute("_ERROR_MESSAGE_", "<li>" + errMsg);
            return "error";
        }

        ServiceDispatcher sd = ServiceDispatcher.getInstance(dispatcherName, delegator);

        if (sd == null)
            dispatcher = new WebAppDispatcher(dctx, delegator);
        else
            dispatcher = sd.getLocalContext(dispatcherName).getDispatcher();

        request.getSession().setAttribute("delegator", delegator);
        request.getSession().setAttribute("dispatcher", dispatcher);

        return "success";
    }

    /**
     * Change dispatcher event. Changes the dispatch for the current session
     * @param request HttpServletRequest
     * @param response HttpServletResponse
     * @return Response code string
     */
    public static String changeDispatcher(HttpServletRequest request, HttpServletResponse response) {
        String dispatcherName = request.getParameter("dispatcher");
        Security security = (Security) request.getAttribute("security");
        Locale locale = UtilHttp.getLocale(request);

        if (!security.hasPermission("ENTITY_MAINT", request.getSession())) {
            String errMsg = UtilProperties.getMessage(CoreEvents.err_resource, "coreEvents.not_authorized_use_fct", locale);
            request.setAttribute("_ERROR_MESSAGE_", "<li>" + errMsg);
            return "error";
        }
        if (dispatcherName == null) {
            String errMsg = UtilProperties.getMessage(CoreEvents.err_resource, "coreEvents.dispatcher_not_passed", locale);
            request.setAttribute("_ERROR_MESSAGE_", "<li>" + errMsg);
            return "error";
        }

        GenericDelegator delegator = (GenericDelegator) request.getAttribute("delegator");
        ServiceDispatcher sd = ServiceDispatcher.getInstance(dispatcherName, delegator);

        if (sd == null) {
            String errMsg = UtilProperties.getMessage(CoreEvents.err_resource, "coreEvents.no_dispachter_name_registered", locale);
            request.setAttribute("_ERROR_MESSAGE_", "<li>" + errMsg);
            return "error";
        }
        LocalDispatcher dispatcher = sd.getLocalContext(dispatcherName).getDispatcher();

        request.getSession().setAttribute("dispatcher", dispatcher);
        return "success";
    }

    /**
     * Schedule a service for a specific time or recurrence
     *  Request Parameters which are used for this service:
     *
     *  SERVICE_NAME      - Name of the service to invoke
     *  SERVICE_TIME      - First time the service will occur
     *  SERVICE_FREQUENCY - The type of recurrence (SECONDLY,MINUTELY,DAILY,etc)
     *  SERVICE_INTERVAL  - The interval of the frequency (every 5 minutes, etc)
     *
     * @param request HttpServletRequest
     * @param response HttpServletResponse
     * @return Response code string
     */
    public static String scheduleService(HttpServletRequest request, HttpServletResponse response) {
        GenericValue userLogin = (GenericValue) request.getSession().getAttribute("userLogin");
        Security security = (Security) request.getAttribute("security");
        LocalDispatcher dispatcher = (LocalDispatcher) request.getAttribute("dispatcher");
        //GenericDelegator delegator = (GenericDelegator) request.getAttribute("delegator");
        Locale locale = UtilHttp.getLocale(request);
        
        Map params = UtilHttp.getParameterMap(request);
        // get the schedule parameters
        String serviceName = (String) params.remove("SERVICE_NAME");
        String poolName = (String) params.remove("POOL_NAME");
        String serviceTime = (String) params.remove("SERVICE_TIME");
        String serviceEndTime = (String) params.remove("SERVICE_END_TIME");
        String serviceFreq = (String) params.remove("SERVICE_FREQUENCY");
        String serviceIntr = (String) params.remove("SERVICE_INTERVAL");
        String serviceCnt = (String) params.remove("SERVICE_COUNT");
        String retryCnt = (String) params.remove("SERVICE_MAXRETRY");

        // the frequency map
        Map freqMap = new HashMap();

        freqMap.put("SECONDLY", new Integer(1));
        freqMap.put("MINUTELY", new Integer(2));
        freqMap.put("HOURLY", new Integer(3));
        freqMap.put("DAILY", new Integer(4));
        freqMap.put("WEEKLY", new Integer(5));
        freqMap.put("MONTHLY", new Integer(6));
        freqMap.put("YEARLY", new Integer(7));

        // some defaults
        long startTime = (new Date()).getTime();
        long endTime = 0;
        int maxRetry = -1;
        int count = 1;
        int interval = 1;
        int frequency = RecurrenceRule.DAILY;

        StringBuffer errorBuf = new StringBuffer();

        // make sure we passed a service
        if (serviceName == null) {
            String errMsg = UtilProperties.getMessage(CoreEvents.err_resource, "coreEvents.must_specify_service", locale);
            request.setAttribute("_ERROR_MESSAGE_", "<li>" + errMsg);
            return "error";
        }

        // lookup the service definition to see if this service is externally available, if not require the SERVICE_INVOKE_ANY permission
        ModelService modelService = null;
        try {
            modelService = dispatcher.getDispatchContext().getModelService(serviceName);
        } catch (GenericServiceException e) {
            Debug.logError(e, "Error looking up ModelService for serviceName [" + serviceName + "]", module);
            String errMsg = UtilProperties.getMessage(CoreEvents.err_resource, "coreEvents.error_modelservice_for_srv_name", locale);